On 1938 Jan 17 Barker (Chestnut, England, UK, 12.5" reflector)
noticed that Plato crater had a brownish-gold veined surface,
colour irregular - laid on a smooth floor. It had extended
further E than on the previous night. The ALPO/BAA weight=2.
Mare Crisium 1948 Jul 21/22 UT 22:00?-01:00? Observed by Moore
(England, 12" reflector) "Almost featureless except for Peirce &
Picard" NASA catalog weight=3. NASA catalog ID #506. ALPO/BAA
weight=2.
Aristarchus 1965 Sep 11 UT 08:08-08:15 Observed by Cross,Rasor (Parlos
Verdes, CA, USA, 22" reflector x133, S=F-P) "Red glows,. Photos
obtained but do not show phenom. Haze terminated obs." NASA catalog
weight=5 (very high). NASA catalog ID #894.
Aristarchus 1978 Nov 15 UTC 19:10-22:15 Observed by Foley (UK) -
Colouration seen - violet spot on north west interior. There was no
colour on the crater floor from 19:10-20:05, but suddenly the floor
colour changed to a slate blue-grey colour from 20:05-21:45UT. Colour
was not detected elsewhere. CED brightness measurements taken - these
were normal for Proclus, Mons Pico, Mons Piton and Tycho, but for
showed that Aristarchus varied in brightness. Crater Extinction Device
(CED) used. Seeing Antoniadi III, Transparancy Fair.
Plato 1966 Aug 02 UT 06:26 Observed by Kelsey (Riverside, CA, USA, 8"
reflector x300) "Again E(IAU?) wall would not focus" NASA catalog
weight=2 (low). NASA catalog ID #962.
On 1891 Sep 18 at UT 21:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Varitions in vapor column. Drawings. Time estimated from given
colongitude)." Cameron 1978 catalog ID=271 and weight=1. ALPO/BAA
weight=2.
Aristarchus 1964 Sep 22 UT 02:54-03:03 Observed by Bartlett
(Baltimore, MD, USA, 4" refractor x240, S=5, T=5) "Bright blue-
viol. gl. on NE rim & EWBS; dark viol. nimbus; S. floor 8deg br.
rest of crater 7 deg. Red-brown, changed to coppery, to yellow-
brown (Gilheany, et al. examined crater later, but did not
detect any color in MOON BLINK, so red-brown must have
disappeared." NASA catalog ID #851, NASA catalog weight=4.
ALPO/BAA weight=3.
E. of Pytheas in M. Imbrium 1970 Jun 19/20 UTC 23:54-00:23 Observed by
Sendor-Mark (Szolnok, Hungary, 4" reflector x 200) "Bright spot nr.
Timocharis (on E. Copernican ray?) decreased slowly for next 8min 19
sec. At 00:11:05 flared up. After 2nd decreasing, brightened again at
00:25:54 after which no variablity. Event was star-like < 3km. No
events on 21st." NASA catalog weight=2 (poor). NASA catalog ID=#1262.
Kunowsky 1964 Sep 22 UT 03:25-04:30 Observed by Gilheany, Hall, and
Johnson (Port Tobacco, MD, USA, 16" reflector, Seeing=good) "Red area
detected by Trident's MOON BLINK (MB) device, (Aris. normal)." NASA
catalog weight= 5 (very high). NASA catalog ID #852.
Aristarcus 1975 Feb 26/27 UTC 21:00-00:30 Observed by: Foley (Kent, UK,
12" reflector), Kennedy (Dundee, UK, 8" reflector), Gannon (Middlesex,
UK, 6" reflector), Amery (Reading, UK, 10" reflector), Fitton
(Lancashire, UK, 8" reflector), Turner (Sussex, UK, 8" reflector)
"Foley) Neg. at 2100h. At 2123h NE wall was blue, decr. at 2220h. New
spot at 2221h due N. At 2227h blue fr. ENE to N. & faint blue on rim.
Interior clear detail, but obscur. at ENE-N, (Kennedy) at 2222h got
neg., also at 2229h-2300h. (Gannon) at 2245-2253h got neg. (Amery) at
2315h saw crater bright, bands clear, c.p. bright & very bright pt. to
NE of c.p. N. wall bluisg gray mist extending into N. part of crater.
Got slight blink in red till 2335h. (Fitton) at 2330h saw blue in N.
interior but no blink, no obscur. in long exam. Blue varied with
position in FOV. Polariz. with many rotations showed normal. Blue only
in Aris., none elsewhere till 2359h. (Turner at 2330h got neg. till
2359h. (Amery) at 2359h saw most detail clear. Blink distinct in red.
At 0030h(27th) saw blue mist now gray, seeing deteriorating. Herod. was
normal, (Fitton explains obs. as due to high press. system W. of
obs with temp. inversions). NASA catalog weight=5 (very high). NASA
catalog ID #1399.
On 1989 Jun 20 UT 0628-06:58 R. Manske (Sun Praire, WI, USA, 1"
refractor) discovered blue on the north west inner wall and red on the
south east outer wall. At 05:39 he could see the blue but not the red.
No colour was detected on Tycho, but he thought that he could detect a
pinkish colouration over the whole Moon. The Cameron 2006 catalog ID=
367 and the weight=1. The ALPO/BAA weight=1.
Aristarchus 1983 Oct 22 UT 22:00 G.W. Amery, (Reading, UK, Seeing
III-IV) found Aristrachus so bright that the CED was unable to
give a reading. The crater's interior was also diffuse in
appearance. The Cameron 2008 catalog ID=232 and weight=4. The
ALPO/BAA weight=3.
On 1898 Apr 07 at UT 22:30 Pickering (Cambridge, Mass, USA, 15"
refractor?) observed in Schroter's valley and it's vicinity "Variations
in vapor col. Lge. gap in main column near edge of C. Gap not
previously seen, but fine lines crossing it had. E is still most
conspic. (time est. fr. col. given)". The Cameron 1978 catalog ID=298
and weight=3. The ALPO/BAA weight=2.
Aristarchus 1969 May 03 UTC 07:00? Observed by Smith, Gallivan
(Corralitos Observatory, Organ Pass, NM, 24" reflector, photos) "Bluing
around crater. Visible on monitor, but immeasurable in photos" NASA
catalog weight=5. NASA catalog ID #1125
2004 Aug 31 UT 22:30-22:35 C. Brook (Plymouth, UK) looked at Gassendi
and noted a slight chestnut brown colouration in the dark area on the
crater floor to the north of the central mountain leading to Gassendi
A. It lasted for about two minutes during 22-30 hrs UT to about 22-35
hrs UT (observer unable be more precise). Used 60mm OG x120. Seeing
quite steady trans good. Checked Gassendi again at 23hrs UT to 23-05.
No sign of colour. Also area mentioned earlier seemed lighter now. No
colour on Aristarchus. Plato floor dark -no sign of craterlets. Seeing
good with just slight tremor. Trans good 60mm OG x120 used. The
ALPO/BAA weight=2.
On 1956 Dec 19 at UT 00:00? an unknown observer apparently saw a TLP
somewhere on the Moon. Cameron gives the reference for this as an
unnamed AGU meeting. The Cameron 1978 catalog ID=659 and weight=0. The
ALPO/BAA weight=1.
On 1980 Sep 25 atUT 20:20-22:14 P. Moore (Selsey, UK, 15"? reflector,
seeing=III) found that Mons Pico was bright and had a reddish glow to
its south west. The Cameron 2006 catalog ID=111 and weight=0. The
ALPO/BAA weight=1.
On 1980 Sep 25 at UT20:20-22:14 P. Moore (Selsey, UK) noticed that the
central craterlet was more visible in red than in blue. There was also
a streak on the floor that was "shifted to S & W." The floor was dark
and Mons Pico was bright. Peters found Plato's floor (and central
craterlet) to be dark, and darker in blue than in red, however he was
suffereing from spurious colour at his observing site. Cameron 2006
catalog ID=111 and weight=0. ALPO/BAA weight=1.
On 1980 Sep 25 at UT 20:20-22:14 Peters (Kent,UK, x240 and x120,
seeing=III) observed Proclus to have an orange tint, however there was
a lot of spurious colour in the area. The Cameron 1978 catalog ID=111
and weight=0. The ALPO/BAA weight=1.
East of Picard (56E, 15N) 1877 May 29 UT 00:30 Observed by an unknown
observer (in England?) "Bright spot. (nr. sunset, should normally be
faint? as in Kuiper atlas where it is invisible.)" NASA catalog weight=
3. NASA catalog ID #191.
Plato 1965 Sep 12 UT 05:00 Observed by McCord (Mt Wilson
Observatort, CA, USA, 60" reflector+spectrometer) "line depth
ratios in spectra a/b (H), c/d (K) were abnormally high compared
with 23 other areas, but not quite as pronounced as other areas
on other dates." NASA catalog weight=5 (very high).
NASA catalog ID 895. ALPO/BAA weight=5.
Mare Crisium 1973 Mar 20 UT ~19:55 Robinson (Devon, UK) patches
clearer in a red filter than in a blue filter. This is
unlikely to be a TLP, more likley something to do with effects
in our atmosphere, but is worth checking out, just in case.
ALPO/BAA weight=1.
Aristarchus 1978 Nov 16 UTC 19:40-19:45. Observer: Mark Kidger (UK, 6"
refractor x40, x133, x200, seeing poor-boiling) - saw the north wall of
Aristarchus to be an electric blue. No spurious colour was seen in
other craters (despite the conditions). No other observers were able to
confirm this due to the weather. ALPO/BAA weight=2.
On 1975 Feb 27 at UT21:26-23:32 P.W. Foley (Wilmington, Dartford, Kent,
U.K., 12" reflector) picked up a colour Moonblink blink (brighter in
blue) in Plato crater at 21:36, 22:15 and 23:32UT extended from 11 - 3
o'clock along entire area inside the crater - the effect was
particularly diffuse and obscure, despite the surrounding localities
being sharp. The effect was seen visually and was continuous. A check
was made on star images and these were found to be very sharp and not
pulsating, thuis indicating good atmospheric conditions. This is a BAA
Lunar Section report. The ALPO/BAA weight=3.
Plato - Hibbard (Orlando, FL, USA, 2.5 inch refractor, NASA
catalog quotes: "Whole crater had a bluish tinge, (photos
obtained but out-of-focus -- chrom. aberr?" - NASA catalog
weight=1, NASA catalog ID 903. ALPO/BAA weight=1.
Aristarchus 1975 Feb 27/28 UT 22:00-01:00 Observers: Robinson
(Teignmouth, England - 10" reflector), Fitton (Lancashire, England -
8" reflector), Amery (Reading, England - 8" reflector), Mills
Observatory (Dundee, Scotland, 10" reflector) - NASA catalog states:
"Robinson at 2200h got blink on E.wall, stong at 200x till 2225h.
(Fitton) at 2200h (moon low) at 200x saw vivid blue to N., vivid yellow
& orange to S. in Aris., Proc., Menelaus, & many other bright craters
til 2300h. Then Aris. less blue & mare obj. no colors. No blinks in
these craters. No obscur. Polariz. normal till 2330h using many
rotations. At 2330h Aris. blue in N. but fainter. Only Proc. remained
blue till 0020h (28th). Photo-electric scan at 2340h was normal for
Aris. (600 microamps) compared with Tycho (900 microamps), total of 10
scans. all neg. with 15km resolution. Blink neg. but blue still vis. in
N. in white light till 0030h. At 0100h (S=III at 200x) Proc. clear of
blue, Aris. nearly clear, blink neg. (Amery) at 2310h saw blue on N.rim
of Aris., no color in other craters at 300x. No blink in Aris. S. part
of Aris. indistinct but abnormal. No blink till 2350h. (Mills
Observatory) at 0000h checking rep'ts got blink in S.part of Aris. Blue
only in N.part. Similar blue in bright craters in E.hemisphere & blue
halo on S.limb till 0020h. Concluded due to optical effects. Fitton
says due to atm. effects from high press. sys. W. of obs (blue on one
rim & red on other due to chrom. aberr. ? If spurios, should get no
blink & similar crater conditions should exhibit same phenomena all
over Moon). NASA catalog weight=5. NASA catalog TLP ID No.
1400. ALPO/BAA weight=3.
Proclus 1975 Feb 27/28 UTC 22:00-01:00 Observers: (Fitton) at 2200h
(moon low) at 200x saw vivid blue to N., vivid yellow & orange to S. in
Aris., Proc., Menelaus, & many other bright craters til 2300h. Then
Aris. less blue & mare obj. no colors. No blinks in these craters. No
obscur. Polariz. normal till 2330h using many rotations. Only Proc.
remained blue till 0020h (28th). Photo-electric scan at 2340h was
normal for Aris. (600 microamps) compared with Tycho (900 microamps),
total of 10 scans. all neg. with 15km resolution. Blink neg. but blue
still vis. in N. in white light till 0030h. At 0100h (S=III at 200x)
Proc. clear of blue, Aris. nearly clear, blink neg. Concluded due to
optical effects. Fitton says due to atm. effects from high press. sys.
W. of obs (blue on one rim & red on other due to chrom. aberr. ? If
spurious, should get no blink &similar crater conditions should exhibit
same phenomena all over Moon). NASA catalog weight=5 (very high). NASA
catalog TLP ID No. #1400.
On 1959 Nov 17 at Ut 22:00 an unnamed observer saw a light in Plato.
The Cameron 1978 catalog ID=725 and weight=1. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT07:03-07:27, R. Manske (Sun Praire, WI, USA, 1
"refractor) found the colours pink and blue on Aristarchus, like the
previous day, however this time there was also an orange tinge on the
"back"" (North?) rim of Sinus Iridum and the same too on mare Crisium,
all the way past Plato, in the direction of Cassini. This colour was
not seen at higher magnifications. The Cameron 2006 catalog ID=368 and
the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on Cassini all the way past Mare Imbrium edge,
Plato etc - maybe atm. At high power (8mm eyepiece) & no filter. Saw no
hint of color (due to smearing at high power?)." The Cameron 2006
catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on Mare Imbrium edge all the way past Plato upto
Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no
hint of color (due to smearing at high power?)." The Cameron 2006
catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on Plato all the way past Mare Imbrium edge upto
Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no
hint of color (due to smearing at high power?)." The Cameron 2006
catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on the north? wall of Sinus Iridum and over a
large part of the north of Mare Imbrium - "maybe atm. At high power
(8mm eyepiece) & no filter. Saw no hint of color (due to smearing at
high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The
ALPO/BAA weight=1.
On 1963 Nov 04 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral
line dpeth anomaly? The cameron 1978 catalog ID=781 and weight=5. The
ALPO/BAA weight=4.
Plato 1965 Sep 13 UTC 05:40 McCord (Mt Wilson, CA, USA, 60"
reflector with spectragraph) - "Line depth ratio in spectra a/b (H),
c/d (K) were abnormally high compared with 23 other areas, but not
quite as pronounced as other areas on other dates." NASA catalog
weight=5 (very high), NASA catalog ID #895.
Plato 1971 Apr 13 UT 03:30-04:30 W. Cameron (Greenbelt, MD,
USA, 36" reflector & 6" grating) "spectrum obtained showed an
extra absorption line at 4908+/-4A & possibly another. No other
of 6 spectra of other features on the plate show it. No other of
20 spectra of Plato, including another on the same nite show it.
Further reduction & analysis remain to be done." NASA weight=5.
NASA catalog ID=#1291. ALPO/BAA weight=5.
Aristarchus 1987 June 14 UT 04:43-08:00 Observed by Curtis, Jacobs, and
Manske (Yanna Research Station, Carl A. Fosmark Jr. Memorial
Observatory, Madison Astronomical Society, WI, USA, 17" f4.5 Dobsonian
and the 8" f10 SCT Celestron) "On the night 13/14 June 11:42 P.M. to
3:00 A.M. local time or 14 June 04:43 to 8:00 UT. Three people
witnessed this event and all three of them observed with three
different telescopes to rule out instrumental aberration. These three
pople were members of the Madison Astronomical. The three observers
involved are Keith Curtis, Tom Jacobs and Robert Manske. Keith Curtis
took detailed notes of the event as he observed it. The observations
were made at the Yanna Research Station, Carl A. Fosmark Jr.
Memorial Observatory of the Madison Astronomical Society following the
annual picnic. This is MAS dark sky site and is located near Brooklyn,
Wisconsin. As they were observing the night sky they saw the Moon
rising and noted a strong orange color due to atmospheric effects.
Approximately 1/2 hour after the Moon rise they decided to turn one of
the telescopes on it. It was at 04:43 UT, it was noted by Keith Curtis
that as the Moon rose it began to loose the horizon color effect and
return to its normal color, but he found that the red color was not
leaving the crater Aristarchus. At first they all thought this was an
atmospheric effect but decided it was a real event since they detected
a second crater (Euler) showing red color on its rim. Keith Curtis
said that the red color was very strong on the Western rim of
Aristarchus with a strong blue/green or aqua green on the Eastern rim.
Keith also reported that the glow opaque enough to prevent viewing of
the interior of crater Aristarchus. He said they observed until 3:00
A.M. daylight saving time or 8:00 UT. and the red glow was still
visible when they ended their observing session. Robert Manske
description of the event was that he saw two craters glowing a strong
red and blue giving it a rainbow effect. He said that the red glow was
so strong he was unable to see the craters underneath during the entire
observing session. Concerning the orientation of the red and blue was
on the crater he stated that he did not remember since he failed to
take any notes. Concerning whether there was any difference in
appearance when they observed it with the 17" f4.5 Dobsonian and the
8" f10 SCT Celestron. He said that he could not detect any difference
to the lunar formation or the color on it regardless of which telescope
he used. He did mention that as the Moon was rising it had the
appearance of one large Maria in the center of the disk. This illusion
disappeared as the Moon rose higher into the sky. When talking to Tom
Jacobs he said that he remembered that he did not see anything on the
Moon until 1/2 hour after Moon rise. He said that he remembered that
the entire Aristarchus region had a strong reddish or pinkish color.
All three witness all reported variations in the type of color they
were seeing. This would indicate that individuals color perception is a
major factor during a color event. Keith Curtis saw a very strong
coloration around the rim of the craters, where Robert Manske saw the
entire region covered by this red and blue coloration and he could not
see the interior of the craters underneath. Tom Jacobs reported that
the glow covered the entire crater but he could see the crater
underneath it. The Moon never achieved a height greater than 21 degrees
so it could be that what the observers saw was caused by the Earths
atmosphere. Further details can be found on the following web site:
http://www.ltpresearch.org/ltpreports/ltp19870614.htm " ALPO
observational report. Cameron 2006 catalog ID=303 and
weight 5. ALPO/BAA weight=3.
Plato 1965 Sep 13 UTC 07:20 McCord (Mt Wilson, CA, USA, 60"
reflector with spectragraph) - "Line depth ratio in spectra a/b (H),
c/d (K) were abnormally high compared with 23 other areas, but not
quite as pronounced as other areas on other dates." NASA catalog
weight=5 (very high), NASA catalog ID #895.
On 1992 Feb 21 at 03:00-03:55UT C. Brook (Plymouth, UK, 3" refractor
x116, seeing II) found that Janssen K was very bright. Cameron 2006
catalog extension ID=441 and weight=2. ALPO/BAA weight=1.
Schroter's Valley 1898 Apr 09 UT 04:00 Observed by Pickering
(Cambridge, Mass. USA, 15" refractor) "Variations in vapr col. Break in
main col. Similar to earlier. time est. fr. given col. Date given is
8th LT =9th UT?."NASA catalog weight=2 (low). NASA catalog ID #300.
Cassini/Tycho 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho
appears brighter than Cassini bright spot in red filter. In violet
filter Tycho and Cassini bright spot appear equally bright. (Tycho and
Cassini bright spot in Deslandres - added at bottom of report?). 2.5"
refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=1.
Tycho/Cassini 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho
appears brighter than Cassini bright spot in red filter. In violet
filter Tycho and Cassini bright spot appear equally bright. (Tycho and
Cassini bright spot in Deslandres - added at bottom of report?). 2.5"
refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=2.
Gassendi 1966 Sep 02 UT 22:55-02:55 Observed by Moseley, Moore,
Gill, Harris, Frost and Hall (Armagh, Northern Ireland, 10"
refractor + Moon Blink, Seeing=fair) and by Cave (England using
a Moon blink) "Eng. Moonblink sys. detected red glows on c.p. &
around it; seen vis. too. (Corralitos obs.at the time? did not
see anything?)" Note that the Arnagh observers were all using
the same telesope, The observing times of M. Cave are not given
but they saw a blink SW of the central peaks. NASA catalog ID
972. NASA catalog weight=5. ALPO/BAA weight=3.
In 1790 Mar 03 at 22:00 UT Wilkins (England?) observed Herschel's 1787
lumninous point (Aristarchus) in the same place. The Cameron 1978
catalog ID=67 and weight=4. The ALPO/BAA weight=2.
On 1979 Nov 08 at 00:16UT P.Madej (Huddersfield, UK, 6" reflector, x48
and x110, seeing II and transparency very good) detected a small faint
orange spot, close to the centre, but not at the centre. Spurious
colour was visible on the northern flank of Aristarchus. The Cameron
2006 catalog ID=74 and weight=3. ALPO/BAA weight=2.
Plato 1886 Nov 14 UT 21:45 Observed by Lihou (France?)
"Brilliant band N-S, area marked G in NE was only slightly
visible, poorly defined. Drawing (there were rays on the
floor)." NASA catalog weight=3. NASA catalog ID #253. ALPO/BAA
weight=3.
On 1981 Oct 26 UT 20:44-21:14 M. Mobberley (Bury St Edmunds, UK,
14" Cassegrain, seeing III) noticed an ~100deg wide fan on the
floor of Theophius, radiating on the central peak upto the
surrounding base of the wall next to Cyrillus crater. This fan
had a hint of yellow/red. The observer did not consider this to
be abnormal - there was certainly no loss of focus here as far
as the observer was concerned, and no mention is made of this
effect in later observations that night. Plenty of spurious
colour was reported. The ALPO/BAA weight=2.
Aristarchus 1966 Aug 05 UT 05:22-05:38 Observed by Bartlett (Baltimore,
MD, USA, 4" reflector x93, x125, x281, S=4, T=5), "S. part of floor was
granulated & est. at 6 deg bright; faint yellow-brownish tint. Rest of
crater 8 deg bright white."NASA catalog weight=4 (high). NASA catalog
ID 963.
Alphonsus 1958 Nov 29 UTC 22:00? Observed by Wilkins (Kent, UK,
15" reflector) "Near site of Kozyrev's outbreak saw a circular
patch, black pit center, & red, round masses all around it."
NASA catalog weight=4. NASA catalog ID #708.ALPO/BAA weight=3.
On 1980 Sep 28 at UT05:00-07:00 W. Steed (Ocean City, MD, USA, 3"
refractor, x45 and x220) detected a "tower-like" feature on the east
rim of Mouchez crater, and appeared about 2-3x higher than other
mountains nearby. The Cameron 2006 catalog ID=112 and the weight=1. The
ALPO/BAA weight=1.
On 1958 Jul 14 at UT 21:00 Classen (Pulsnitz Observatory, East Germany,
8" refractor) observed Kepler to be 0.5 magnitudes brighter than
Aristarchus, normally it is the other way around with Aristarchus being
0.3 brighter than Kepler. The Cameron 1978 catalog ID=1084 and weight=
3. The ALPO/BAA weight=2.
Theophilus 1965 Jul 18 UTC 08:52-09:01 Observed by Cross, Ariola
(Whittler, CA, USA, 19" reflector, x450, S=4, T=3) "Red spots;
ruby red within a pink area on c.p." NASA catalog weight=5. NASA
catalog ID #885. ALPO/BAA weight=4.
Plato 1825 Apr 08 UT 01:00 Observed by Gruithuisen (Munich,
Germany) "West part of crater brighter than east part". NASA
catalog weight=4. NASA catalog ID #106. ALPO/BAA weight=1.
Aristarchus 1971 Jun 13 UT 08:21 Observed by Bartlett (Baltimore, MD,
USA, 4" reflector x51, x93, x121) "S. part of floor was brownish &
granulated" NASA catalog weight=4 (high). NASA catalog ID #1296.
Aristarchus 1978 Nov 19 UT 22:40-23:05 Observed by Pedler
(UK, 12.5" reflector, x200, seeing fair) Blue colour seen and
could not focus on this part, where as other craters were
nice and sharp in this filter. Aristarchus darker in red
light. all other craters were normal in red. Attempts to
change the eyepiece did not make any difference to the blue
colour. Cameron 2005 catalog ID=43 and weight=4.
ALPO/BAA weight=3.
Gassendi 1971 Jun 13 UT 07:22-08:05 Observed by Raimundo Nonato
da Silva (Parnaiba, Brazil, 9.5" reflector, x180) "At 0755h
variation on W.(IAU?) edge of crater "brightness seemed to
become a little darker" as it was gugacious (foggy?), Was not
sure it was a LTP. Other features & it were normal from 0658-
0755h". NASA catalog weight=1. NASA catalog ID 1295. ALPO/BAA
weight=1.
On 1979 Nov 09 at 10:30-11:05UT D. Louderback (South Bend, WA, USA, S=
4-2/10, T=P) detected a rapid fade in brightness of south and north
sunlit slopes of Mons Piton. Then the western flank faded and became
obscured in detail. The variations detected were approximately 5 sec in
duration, where as seeing effects were of the order of 15 sec. Mons
Pico and other mountains did not show a similar effect. "It was seen
only in viol. filter tho once seemed blurred in red. No changes,
dimming was like a veil of mist covering the mtn - swiftly, then
dissipating as rapidly. Sketch. Phenomenon went on & off till 11:00UT.
Cloud was cir. In viol & spreadover mtn in 2s. Saw 6 rapid, spinning
motions within the cloud like an explosion or tornado seen from above.
Blurring in red was more elongated. Motion across it was like a heat
wave. Whole event lasted ~35m but disappeared in a few secs. Albedos
7.4 cp, 7.5 pt A, 7 pt B." Cameron 2005 catalog ID=75 and weight=4.
ALPO/BAA weight=3.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA,
3.5" reflector, x160, Seeing-very good) suspected blue tinge on north
west rim and brown/red on south east rim of Aristarchus crater + focus
was slightly difficult. No similar colour effect seen on other craters.
Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA,
3.5" reflector, x160) found that Clavius had a "D" shaped crater on its
outskirts that made it appear to have a ridge crossing through it.
Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1989 Apr 26 at UT 10:22-10:44 D. Darling (Sun Praire, WI, USA, 3"
refractor, x36-x140) found that the eastern half of Plato crater was
dark - and he checked this using several eyepieces. moderate
magnification resolved the dark region into bands, but too high a
magnification (x140) made the bands dissappear. The Cameron 2006
catalog ID=362 and the weight=0. The ALPO/BAA weight=1.
On 1981 Oct 18 UT 22:14022:16 M.Mobberley (Bury St Edmunds, UK,
14" Cassegrain, seeing variable, transparency misty) found that
the central craterlet on the floor of Plato was not visible,
despite it being visible under similar colongitudes on other
nights. Might be due to observing conditions, but observer
suspicous. At 02:08 the observer comments that the central
craterlet was ellusive, and at 02:42, though it is uncertain
whether they regarded it as suspicous still at this stage?
ALPO/BAA weight=1.
On 1891 Sep 23 at UT 22:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Varitions in vapor column. Drawings. Time estimated from given
colongitude)." Cameron 1978 catalog ID=272 and weight=1. ALPO/BAA
weight=1.
Heraclides Point 1948 Jul 27 UT 02:00? Observed by Doherty (Stoke-on-
Trent, England, 3" refractor? or 6" reflector or 10" reflector)
"Strangeley blurred & misty; La Place Prom was perfectly sharp."
NASA catalog weight=3 (average). NASA catalog ID #507.
In 1919 Feb 21 at UT 22:00? an unknown English observer observed in
Lexell crater an intensely dark line going out from it. The Cameron
1978 catalog ID=370 and weight=1. The ALPO/BAA weight=1.
On 1981 Sep 20 at UT 08:00-09:40 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x342, seeing=excellent) detected the small crater on
its western rim But not on the eastern floor. This was odd because both
are equal in size, furthermore smaller craters could be seen and the
Moon was at a high altitude above the horizon, so seeing not a problem.
Cameron 2006 catalog ID=154 and weight=3. ALPO/BAA weight=1.
On 1995 Apr 03 at UT 03:30 Unknown Observer (Transparency good) saw a
darkening in the Cobra Head, Schroter's valley area of Aristarchus -
the best example that he had ever seen. The Cameron 2006 catalog ID=474
and the weight=3. The ALPO/BAA weight=. Reference - BAA Lunar Section
circular 1995 Oct, p125 and personal communication from David Darling
to the BAA on 6/6/1995. Note it is uncertain whether this refers to the
Clementine mission or to somebody who observed during the Clementine
mission, or somebody with that surname. Anyway if it is the Clementine
mission then the date is wrong - possibly the year should have been
1994? The Cameron catalogue does actually mention a TIFF on Clementine
mission? The Cameron 2006 catalog ID=474 and the weight=3. I am
assuming that the year should be 1994 and not 1995? The ALPO/BAA
catalog weight=1 until we can find out what the correct date is?
Linne 1918 Apr 04 UTC 01:00? Observed by Markov (Russia) "In place of
crater only a hill 2km in diam. was vis. (seen in dark). " NASA catalog
weight=1, low, NASA catalof ID #368. ALPO/BAA weight=1.
On 1891 Sep 25 at UT 20:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Varitions in vapor column. Time estimated from given colongitude)."
Cameron 1978 catalog ID=273 and weight=1. ALPO/BAA weight=1.
"Observed early morning Moon, with 60mm OG x120, from 02-20 to 02-45
hrs UT targeting Plato, Aristarchus, and Alphonsus. From 02-20 to 02-30
hrs UT. Aristachus showed a faint pink colouration, where the light
material contacted the darker Mare surface. This was not seen after 02-
30 hrs UT." Transparency very good, seeing somewhat unsteady at first,
improving later on. The ALPO/BAA weight=2.
Aristarchus and Cobra Head 1968 Jul 18 UT 00:50-01:30
Observed by Moseley & Corvan (Armagh, N.Ireland, 10"
refractor, x255) and by Moore (Selsey, England, 3" refractor,
x 120) "Distinct red glow & obscur. 1st at 0050 S. of C.H. &
same size. At 0052h saw color on S.wall of Aris. Both
persisted till 0100h then both (faded, then brightened, then
faded. Plato, Gassendi & Kepler checked with neg. results.
Obscured areas reached greatest extent at 0125h wgen it was
1/2 size of C.H. & SSE (ast. ?) of it. Moore was alerted to
it & saw it in blink, but not vis. at 0107-0220". NASA
catalog weight=5. NASA catalog ID 1085. ALPO/BAA weight=4.
On 1971 Jun 16 at UT 07:08-07:09 Raimundo Nonato da Silva
(Parnaiba, PI, Brazil, 9.5" reflector, x90, seeing=good)
observed during a lunar eclipse that the Straight Wall
surroundings were darker than an observation from two days
earlier. At 07:09UT tonality became clearer. As dawn was in
progress and atmospheric turbulence, not sure if it was a TLP?
Other features were normal. The Cameron 1978 catalog ID=1297 and
weight=1. The ALPO/BAA weight=1.
On 1996 Feb 12 at UT 07:30-08:27 J.Sandel (Caycee, SC, USA)
noted a contrast effect inside Tycho at sunset. At 07:30UT there
was a slight, but definite illumination of small areas of the
crater floor west of the central; peak. Also seen by T. Ferrel
(Lawrenceville, GA, USA, SCT C8). This was oval in shape and
gray in colour - Ferrel noted some diffuseness. It brightened
over 30 minutes. At 08:11UT a definite brightness fade noted in
Tycho's central peak. The crater floor had increased
illumination of entire crater floor. ALPO/BAA weight=3.
On 1966 Sep 09 at UT 21:00-21:30 Cave (England, UK, 6" reflector, x364,
S=F) observed that the flor of Wargentin was a very dark gray, two
shades darker (on scale of 1-10) than the floor of Nasmyth and nothing
to be seen on it even along the ridge. A drawing was made. The Cameron
1978 catalog ID=976 and weight=3. The ALPO/BAA weight=2.
Near Gassendi 2003 Aug 23 UT 09:00 Observed by Weeks (USA, 88deg 33'
W, 22deg 33' N, 20cm reflector) "Observation period ~30 min, terminator
straight down middle of Gassendi, very bright spot seen glaring on
the dark side ~2-3 Gassendi diameters away (SW or NW?). Intense glare
unlike anything seen on Moon before. Spot did not brighten or fade. The
ALPO/BAA weight=2.
Mercurius E (76E, 48N) 2004 Aug 11 UT 18:28:27 Takamura_Y (Ogawamura
Observatory, 137:59:13E, 36:39:34N) observed a 9th magnitude impact
flash. This was verified by 2 other observers elsewhere in Japan.
The ALPO/BAA weight=1.
Grimaldi 1938 Mar 28 UTC 09:30 Observer: Firsoff (Glastonbury, UK - 6"
reflector) - Slight greenish colour - {Note the UTC given in the NASA
catalog is 09:30 which is in daylight here in the UK - possibly the
catalog is wrong, else the observer was observing in daylight, but
worth checking out just in case}. NASA catalog ID No. #433 and NASA
weight=4 (good).
On 1987 Oct 28 at UT 05:05 G. Hewick (UK) observed a 1 sec duration
flash on the lunar surface (night side) whilst waiting to observe a
lunar occultation of X17959. The colour was yellow and the brightness
was approximately magnitude 1 - there was no movement. The location of
the flare was between Daws and Vitruvius (17N, 29E).
In 1955 Apr 24 at UT 19:20 F.C. Wykes (England?) observed a white flash
north of Mare Serenitatis, near Posidonius (25E, 32N). Cameron comments
that this might be a meteor in the dark. The cameron 1978 catalog ID=
588 and weight=0. The ALPO/BAA weight=1.
On 1976 Mar 03 at UT 17:30-18:30 Classen? (Budapest, Hungary, 8"
refractor, 14" reflector) observed Aristarchus to have a point-like
brightness -- white. The Cameron 1978 catalog ID=1429 and weight=3. The
ALPO/BAA weight=1.
On 1969 May 20 at UT 03:18-04:27 Cross (Las Cruces, NM, USA 6"
refractor), Olivarez (Spain?), Kohlenberger, Gibson, Miller, Duarte and
Harris (CA, USA) observed brightenings, pulsations, scintillations in
Aristarchus crater. Cameron says independent confirmation seen by 4
observers, 1-2 magnitude increases, ranged between 1-30sec. Most active
period was 03:18-03:20UT, 04:17-04:27UT (Las Cruces). Calkins (West
Covins, CA, USA) UT 03:40-04:25 saw one major brightening up 2
magnitudes above steady state lasting 0.2 to 1.5 sec and another slow
brightening lasting 5-10 seconds. Kelsey (CA, USA) saw at 03:43-03:48UT
some brightenings. These observations were made during the Apollo 10
watch. The Cameron 1978 catalog ID=1127 and 1128 and weight=5. The
ALPO/BAA weight=4.
On 1970 Jun 07 at UT 23:00-23:30 Celis et al. (Paso Hondo, Chile, 2.5"
refractor, seeing=good?) observed bluish star-like points in
Aristarchus that formed intermittently. The atmosphere was not
turbulent. Cameron comments that maybe this a confirmation of Bartha's
earlier TLP report?. The Cameron 1978 catalog ID=1259 and weight=3. The
ALPO/BAA weight=2.
On 1877 Jun 14 at UT 20:00 Harrison (USA?) noted on the western limb
variations of brilliancy along the dark limb reembled light of a moving
mirror held to a strong light against shadow of a dark ha.. Faint
greenish-blue streamers resembling terr. aurora streamers. He thought
they were same cause on the Moon. The Cameron 1978 catalog weight=3 and
ID=192.
On 1973 May 06 at Ut 04:48 Bell (Lodi, CA, USA, 8.5" reflector x142)
saw a slow brightness increase in Reiner to magnitude 6, when suddenly
in the north east (IAU?) quadrant of the floor there was a very bright
pin-point blue-white flash of magntude 2 for approximately 0.5seconds.
After this the bright glowing of the crater diminished over about 15-
20 sec befofre returning to normal. The Cameron 1978 catalog ID=1366
and weight=3. The ALPO/BAA weight=3.
Mare Crisium 1972 Mar 18 UT 19:06-21:00 Obsevred by Prvost and Dorchain
(Belgium, 3.5" reflector, 168x and 336x) "at 1906h Pruvust rep'ted 2
pts. moving from Aout to Prom. Olivium. Minutes later, Dorchain saw a
new pt. Others saw nothing unusual fr. 1912-2100h (Fitton, Ash, Peters,
Watkins,et al in England - but this was later than the event)" NASA
catalog weight=2 (poor). NASA catalog ID #1325.
Plato 1919 Mar 05 UT 17:19:17:34 Observed by Selivanov, Tartakov
(Russia, 4" refractor? x150) "Crater seemed to be an intense green in
the background of Ashen light. Slightly to the left (east?) of it's
centre a bright spot that sparkled with a phosphor. light, lighting up
the whole crater so that its W. edge could be seen. Light did not
change for the whole time." NASA catalog weight=4 (good). NASA catalog
ID #371.
In 1949 May 31 UT02:37 LT Johnson observed a flash near the W
limb of the Moon at the same latitude as Riccioli. No colour
seen, the magnitude was 9-10, and duration < 0.5 sec. If there
was any motion then it must have been < 24 km. He wasn't looking
at it when it happened, so the motion aspect is uncertain.
Indeed he was not absolutely certain if it was on the limb, or
just inside or outside? The BAA/ALPO weight=1.
On 1972 Mar 18 at UT2015 E. Watkins, P. Hooks, D. Harris and R. Pieper
(Conditions bad: a lot of mist and haze in the sky, 10" (x80 and x160)
and 4.5" reflectors (x45, x150 and x225), observers were located in the
UK) Aristarchus seen on the night side of the Moon - P. Hooke saw a red
orange outburst from the ctater. When E. Watkins had a look, it just
resembled a misty white area i.e. normal. Eyepieces were changed but it
stayed misty white. Hooke was an inexperienced TLP observer at the
time. Watkins did however notice some variation in brightness but put
this down to atmospheric conditions. This is a BAA observation.
ALPO/BAA weight=1.
On 1969 Jul 18 at UT 03:53-04:21 Tungside? (CA, USA, 8" reflector) saw
a blue flash in Aristarchus crater. Apollo 11 watch. The Cameron 1978
catalog ID=1156 and weight=3. The ALPO/BAA weight=2.
On 1969 Jul 18 at UT 04:16 Harris (Torrence, CA, 12" reflector) saw
Kraft brighten at this time. Apollo 11 watch. The Cameron 1978 catalog
ID=1156 and weight=3. The ALPO/BAA weight=2.
On 1969 Jul 18 at UT 03:53-04:21 Kohlenberger (Fullerton, CA, 4.5"
reflector), Harris and Bell (Torrence, CA, 12" reflector) saw a 65km
long limb brightneing between Grimaldi and Aristarchus, a third of the
way from Aristarchus. The Cameron 1978 catalog ID=1156 and weight=3.
The ALPO/BAA weight=1.
On 1939 Feb 23 at UT17:00 Malakhov, Filippoova (Russia) observed an
intensive luminescence in background of ashen light that had ceased in
March, in Aristarchus (confirmed of Andrenko - says Cameron). Cameron
1978 catalog ID=446 and weight=5. ALPO/BAA weight=3.
On 1969 May 21 at UT 03:40-04:25 Kohlenberger (Fullerton, CA, 12"
reflector), Harris, Miller (Torrence, CA, 12" reflector), Bell and
Calkins (Ojai, Duarts, CA, USA), Kelsey (West Covins, CA, Riverside,
CA, USA) observed scintillations in Aristarchus - Cameron says
independent observations?). Members of Astronet took part in this
observation. Kelsey saw a brightening but not on the order of seconds
as others reported. Cameron suspects an atmospheric effect and also
comments that this was during the Apollo 10 watch. The Cameron 1978
catalog ID=1130 and weight=2. The ALPO/BAA weight=2.
On 1970 Jun 08/09 at UT 23:30-00:00 Celis (Quilpue, Chile, 3"
refractor, x60, seeing=good?) observed lots of activity in the
Aristarchus region - blue luminous star-like points, frequently
appearing. Cameron comments that maybe atmospheric effects. The Cameron
1978 catalog ID=1260 and weight=1. The ALPO/BAA weight=1.
On 1881 May 04 UT 20:00 "Gamma" a psuedonym for an astronomer
(Germany?) observed Aristarchus to be be a very bright 8th magnitude
star with pulsations. The Cameron 1978 catalog ID=221 and the weight=3.
The ALPO/BAA weight=2.
On 1969 Jul 19 at UT 03:53-04:19 Harris (Torrence, CA, USA, 12.5"
reflector), Bell (Duarte, CA, USA, 4.5" reflector), and Miller (Ojai,
CA, USA). "Harris saw 20 brightenings or light flashes, lasting fr, 1/2
to 3s at 03:53:56 (1/2s), 03:54:19 (1s), 03:54:55 (2s), 03:55:06,
03:56:54, 03:56:56, 03:58:37, 03:59:58, 04:07:28, 04:15:00, 04:16:02,
04:16:45, 04:20:29, 04:21:14. First 4 were confirmed by Bell, Harris
also saw 100 mi(160km) long limb brightening (blue) between Aris &
Grimaldi, due W. of Aris., brighter than Aris. At 04:14 saw the
brightening 1/2 way between Aris. & Grim. as pinkish or orange. Miller
at 0417h saw a star-like pulse in W. (IAU?) rim of Grimaldi. (confirm.
of Harris'04:16:45 obs. ? Apollo 11 watch)." The Cameron 1978 catalog
ID=1161a and weight=3. The ALPO/BAA weight=3.
On 1969 Jul 19 at UT 03:53-04:19 Harris (Torrence, CA, USA, 12.5"
reflector), Bell (Duarte, CA, USA, 4.5" reflector), and Miller (Ojai,
CA, USA). "Harris saw 20 brightenings or light flashes, lasting fr, 1/2
to 3s at 03:53:56 (1/2s), 03:54:19 (1s), 03:54:55 (2s), 03:55:06,
03:56:54, 03:56:56, 03:58:37, 03:59:58, 04:07:28, 04:15:00, 04:16:02,
04:16:45, 04:20:29, 04:21:14. First 4 were confirmedby Bell, Harris
also saw 100 mi(160km) long limb brightening (blue) between Aris &
Grimaldi, due W. of Aris., brighter than Aris. At 04:14 saw the
brightening 1/2 way between Aris. & Grim. as pinkish or orange. Miller
at 0417h saw a star-like pulse in W. (IAU?) rim of Grimaldi. (confirm.
of Harris'04:16:45 obs. ? Apollo 11 watch)." The Cameron 1978 catalog
ID=1161a and weight=3. The ALPO/BAA weight=3.
On 1877 Jun 15 at UT 20:00 Birt (England, UK) observed a bright spot
east of Picard. The reason why this was regarded as a TLP, accoridng to
Cameron was that it was supposed to be faint or invisible. The Cameron
1978 catalog ID=193 and the weight=3. The ALPO/BAA weight=3.
Hipparchus 1972 Mar 19 UT 21:07-21:29 observed by Schnuckel (52.5N,
13.8E, 60mm refractor) "Two sudden white brightenings in the West wall
approx 7 magnitude. First was at 21:07 UT and the second was at
21:29UT. Both lasted approximately 1 sec in duration." - Hilbrecht and
Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 1965 Aug 02 at UT 03:57-03:58 Bornhurst (Monterey Park, CA, USA,
10" reflector, x240, S=5) observed some star-like flashes in
Aristarchus in ashen light. The Cameron 1978 catalog ID=887 and the
weight=3. The ALPO/BAA weight=2.
Jansen-Maskelyne 1969 Jul 20 UT 00:53-01:00 Observed by Jean and Collak
(Montreal, Canada, 4" refractor and 6" reflector) "Jean and Collack
noted obscur. between Jansen and Maskel. from term. No features
discernible here whereas Proc. & Theoph. were already vis." NASA
catalog weight=2 (low). NASA catalog ID #1169.
Near Langrenus 1969 Jul 20 UT 00:53-01:00 Observed by McNamara (Canada,
6" reflector) "McNamara saw a flash nr. Lang. (meteor?) Apollo 11
watch)" NASA catalog weight=0 (very unreliable). NASA catalog ID #1169.
On 1970 Jun 09 at UT 23:15-23:30 Celis (Quilpue, Chile, 3"
refractor, x60, seeing=good) observed in the Aristarchus region:
"Brilliant blue star-like, uninterrupted. The Cameron
1978 catalog ID=1260 and weight=2. The ALPO/BAA weight=1.
near Proclus 1970 Apr 12 UT 00:15, 00:20 Observed by Loocks
(Valparalso, Chile, 12" reflector, x88) "Brilliant in area NW
of crater. No change in brightness Contrast to opacity of
illuminated fraction of this day Later saw a flash on the
moon. (Apollo 13 watch)." NASA catalog weight=2. NASA catalog
ID #1239. ALPO/BAA weight=2.
Theophilus 1970 Apr 12 UTC 00:25 Observed by Collier
(Montreal, Canada, 6" reflector?, x180) "Sharp E. inside wall
flashes; c.p. lighter than floor. Pink on peak & illum. wall.
Drawing. (Apollo 13 watch)." NASA catalog weight=2. NASA
catalog ID #1240. ALPO/BAA weight=2.
On 1982 Oct 22 at UT23:45-00:10 K. Marshall (Medellin,
Columbia) found the W-NW rim of Proclus was both red and very
bright. The brightness is normal, but as no similar colour
effect was seen elsewhere on the Moon, this was regarded as a
TLP. The Cameron 2006 catalog ID=187 and the weight=3. The
ALPO/BAA weight=3.
On 1982 Oct 22 at UT23:55 K. Marshall (Medellin, Columbia) found
the NE cleft in Posidonius to be abnormally bright, much more so
than the walls of the crater. The ALPO/BAA weight=1.
On 1877 Jun 16 at UT 20:00 Harrison (USA?) noted on the western limb
variations of brilliancy along the dark limb reembled light of a moving
mirror held to a strong light against shadow of a dark ha.. Faint
greenish-blue streamers resembling terr. aurora streamers. He thought
they were same cause on the Moon. The effect was brighter two days
earlier. The Cameron 1978 catalog weight=3 and ID=192.
On 2009 Mar 31 at UT 19:26-19:50 Cook M.C. (Mundesley, UK,
90mm Questar reflector, x130, seeing II-III, transparency poor
to moderate). The crater had it's north-east to west wall
illuminated and a central feature on the floor, faintly seen -
both of these are normal. The crater itself though was much
brighter in a red filter, bright in a wellow filter, but dull
in a blue filter. Possible variation seen whilst using the red
filter, but this may have been due to haze. All other features
behaved normally. The ALPO/BAA weight=3.
On 1984 Sep 30 at UT17:30-18:45 P. Madej (Huddersfield, UK, 83x,
seeing=I-II, transparency very good and no spurious colour) "Twilight
Earthsine at 1732, 83x light-darker blue by 1800. Looked like a star of
mag. 3-4 with no variations. Spot moved slightly from side to side, not
connected with alignment or optical. Luminescence may have expanded and
contracted, but not sure. Other regions in Earthsine not seen.
(Mobberley) saw Earthshine with naked eye. Aris seen before clouds
came. Earthsine > normal T=E. (Foley) took CED readings which confirm
the brilliance of it. No other features could be measured in
Earthshine."The Cameron 2006 catalog ID=250 and the weight=0. The
ALPO/BAA weight=1.
On 1969 May 22 at UT04:28-05:06 Harris (Tucson, AZ, USA, 21"
reflector), Ricke (8" reflector), and Cameron (Greenbelt, MD, USA, 21"
reflector, x40 and x250) observed "Brightenings & pulsations. 1st per.
0428-0440h(R&H); then 0500(R). 3rd per. 0506h(H). Pulsations
intermittent & increase @ 1/2 mag. except 1 was 1-2 mag. greater.
(atmosp. ?). Cameron at 0130-0330 did not see Aris. in 12-in refl. at
40x or 250x, & saw nothing abnormal. (Apollo 10 watch)". The Cameron
1978 catalog ID=1133 and weight=1. The ALPO/BAA weight=2.
Burg 1972 May 18 UT 20:50-21:45, 22:15-23:00 Observed by Moore
(Selsey, England, 12.5" reflector, x350, S=3-4), and Fitton
(Lancashire, England, 8.5" reflectpr, x200) "Suspected floor
brightening at 2050h with a luminous strip to the SW. Persisted
for sometime. Faded at 2110h & invis. at 2145h. Fitton from
2215h-2300h saw nothing unusual, (after event tho.)" NASA
catalog weight=3. NASA catalog ID #1333. ALPO/BAA weight=1.
Proclus 1969 Jul 20 UT 03:55-04:15 Observed by Gergoulis, Morley,
Sevra, Skinner, and Naumann (Edinburg, TX, 17" reflector, x169) " Texas
group got a blink (red, Trident MB) on NW wall. Varied extremely.
Increased in brightness in red. Clouds stopped obs. 5 confirmed
visualy. (moon nr. horizon, Apollo 11 watch. No blink if spurious?)."
NASA catalog weight=3 (average). NASA catalog ID #1170.
Bright spot seen. The Cameron 1978 catalog
gives this TLP an ID No. of 36 and a weight
of 1. The ALPO/BAA catalog weight is also 1.
On 1968 Jun 01 at UT 21:00? Kozyrev (Crimea?, Soviet Union)
Gas luminescence seen in Aristarchus crater. The Cameron 1978 catalog
ID=1075 and weight=3. The ALPO/BAA weight=3.
On 1965 Aug 03 at UT 04:18-04:24 Bornhurst (Monterey Park, CA, USA,
10" reflector, x240, S=F-G) and Leasure and Emanuel (Whittier, CA, USA)
observed some star-like flashes in Aristarchus in ashen light
(confirmed). The Cameron 1978 catalog ID=888 and the weight=5. The
ALPO/BAA weight=4.
Bright point seen near Plato. A much brighter one was near
Aristarchus. Apparently seen by both Schroter and Bode.
The Cameron 1978 catalog ID=43 and weight=5. The
ALPO/BAA catalog weight=3.
Bright point 26" N of Aristarchus rim. Resembled one
near Plato but less conspicuous. The was a confirmed
observation by Schroter and Bode?
On 1965 Oct 01 at 04:00UT an unknown observer saw a TLP (feature name
not given in the Cameron catalog - nor a description or reference). The
Cameron 1978 catalog ID=897 and weight=1. The ALPO/BAA weigh=1.
On 1969 Jul 20 at UT 0530-0540 Younger and Byl (Victoria, BC, Canada,
48" reflector) saw a fuzzy brightening near Aristarchus of less than
0.5 minute of arc diameter (Apollo 11 watch). The Cameron 1978 catalog
ID=1171 and weight=4. The ALPO/BAA weight=2.
Biela, Maskelyne 1969 May 23 UTC 02:32-03:00 Observed by
Skinner, Perez, Barry, Bernie, Madison (Edinburgh, TX, USA)
described in NASA catalog as: "Bright W.rim & 2 spots on N.
&SE rim had blink (red -- Trident MB device) & event was in
progress at start of obs. Saw nothing without image tube.
Could not focus camera so no photos. Blink had ceased when
image tube was replaced. Temporary bright reddish spot nr.
Mask. photographed, (Apollo 10 watch). 17" reflector used.
NASA catalog weight=5. ALPO/BAA weight=5.
On 1969 May 23 at UT03:04-03:10 Jean (Montreal, Canada, 4" refractor,
seeing=good, transparency=3.) observed a white patch on the southern
horn of the Moon. It enlarged and became coloured pink and blue without
filters and reddish in a yellow filter(?). At 03:10UT the area became
as normal as the rest of the environment. Other observers participating
were: Rousseau (Canada, 8" reflector), Collier (Canada, 5.25"
refractor) and Dumas, St. Cyr (Canada, 5.25" refractor). Cameron
suspects a real event mixed in with Chromatic Aberation? Apollo 10
watch. The cameron 1978 catalog ID=1138 and weight=3. The ALPO/BAA
weight=2.
Maskelyne 1969 May 23 UT 02:32-03:00 Observed by Skinner, Perez,
Barry, Bernie, Madison (Edinburgh, TX, USA) descibed in NASA
catalog as: "Temporary bright reddish spot nr. Mask.
photographed, (Apollo 10 watch). 17" reflector used. NASA
catalog weight=5. ALPO/BAA weight=4.
On 1970 Apr 12 at UT 23:56 Loocks (Valparsiso, Chile, 12" reflector,
x88) observed a flash of magnitude 10 in Aristarchus - "not as
brilliant as usual (obscur. ?). Did not obs. permanent luminosity as in
other apportunities. (Apollo 13 watch)" The Cameron 1978 catalog ID=
1243 and weight=3. The ALPO/BAA weight=2.
Cyrillus 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso,
Chile, 12" reflector x88, LION network) "Small crater in Western
Cyrillus was much brighter than anything in the area". NASA catalog
weight=1 (very low). NASA catalog ID #1242.
Mare Numbium 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso,
Chile, 12" reflector x88, LION network) "Small crater in Western
Cyrillus was much brighter than anything in the area. Earlier
he got a blink at 35deg W 15 deg S 10th mag. Drawing (Apollo 13
watch)" NASA catalog weight=2 (poor). NASA catalog ID #1242.
Klein (in Albategnius) 1971 Apr 31 UT 21:30 - 1971 May 01 UT
00:00 Observed by Fitton (England, 8" reflector, x200, filters)
"Attention distracted from Ptolemaeus to Klein where floor was
not normal. It had a pink line at foot of inner N. wall which
was bright in sunlight. Pink extended from N. to W. pt. Floor in
NW quad. was reddish-brown. All similarly illum. craters were
examined & no trace. Klein shifted to all parts of lens but
color persisted, but could not be induced in other craters. At
2230h floor took on more color in NW. In filters floor detail
vis. in red, almost invis. in blue, c.p. barely vis. Color
bright in red, & black in blue filter. In white light looked
like atm. above surface. Ptol. was equal in red & blue, & also
other craters. All seemed normal again on May 2nd. (date in ref.
gives Apr 30, Moore gives Apr 31? Ap 30 wrong as feature not
illum on that date, not even illum. on 5/2/71!)" NASA catalog
weight=4. NASA catalog ID #1292. ALPO/BAA weight=3.
On 1971 May 01 at UT21:00-21:50 Staedke, Jorgensen (Berlin, Germany,
x40 with filters) observed on Maurolycus a coloured, luminous
projection from the crater into and through the small crater on the
north rim. Colour of a dark candlelight then red. Length at diameter of
small crater. a drawing was supplied. Cameron 1978 catalog ID 1293 and
weight=1.
On 1972 May 19 UT 18:24 observed by Engels (52deg 40'N 9deg 5E, using
10x50 binouculars, transparency 2 out of 5, seeing unknown), a orange
to yellow bright flash was seen, lasting 0.1 sec at the southern rim of
Mare Crisium. Published in Hilbrecht and Kuveler, Moon and Planets, 30
(1984) p53-61. ALPO/BAA weight=2.
On 2012 Feb 28 R. Braga (Italy, Seeing III, Transparency very
good, AOG 100mm) UT 19:45-20:00 noted that only the tip of the
central peak was visible. Most of the crater was in darkness.
When viewed through a red filter, the central peak was visble,
but when viewed through a blue filter it was invisible.
ALPO/BAA weight=2.
On 1969 May 23 at UT 03:58-04:17 Wald (Zurich, Switzerland), E. & L.
Cross (Las Cruces, NM, USA, 6" reflector, x120, S=F, T=VG). "Crater
pulsations (Wald). Variations suspected at 0318, 0320-25 by E. Cross,
0417-27 by E. & L. Cross saw non-periodic short var., sudden increases
1-2 mag. & sudden to slow, 1-30s decreases to normal 0441-0446.
(confirm. ?Apollo 10 watch)". The Cameron 1978 catalog ID=1139 and the
weight=5. The ALPO/BAA weight=4.
Hase 1970 Apr 13 UT 01:28 Observed by Dumas (Montreal, Canada)
"Intermittent light on S.wall of crater (atm. ?) (Apollo 13 watch).
NASA catalog weight=1 (very poor). NASA catalog ID #1244.
On 1865 Nov 24 at 20:00? UT Williams and others (England, UK, 4"
telescope) saw in Earthshine that Carlini was had a distinct 8th
magnitude star-like speck in it. The Cameron 1978 catalog ID=140 and
the weight=3. The ALPO/BAA weight=3.
On 2009 Apr 01 at UT 20:00-20:30 C. Brook (PLymouth, UK,
5" refractor, x40 and x100, using red and blue gelatine
Edmund Optics filters observed that a few bright areas
in the centre of mare Crisium were brighter in red at
the start of the observing session than in blue, although
not at a higher magnification. The observation ended when
seeing worsened. The ALPO/BAA weight=2.
On 1877 Jun 17 at UT 21:00? Harrison (USA?) observed a light point on
the Earthlit side of the Moon. He also observed a luminous point that
could not be identified (Cameron speculates that this could be a
confirtmation of Denett's Bessel observation?). The Cameron 1978
catalog ID=195 and the weight=3. The ALPO/BAA weight=2.
Rabi Levi 1969 May 23 UT 05:28-05:35 Observed by Perez, Gay, Skinner,
Floodine (Edinburgh, TX, USA, 17" reflector) "3 small craters in it,
middle one had a blink (Trident MB --red) very bright & the NW crater
of the 3 had a dimmer blink. A few bright flashes were seen vis. by 3
obs. without the image tube, lasting 15s. Clouded out at 0525h, (alt.
of moon was very low--atm?, ? Apollo 10 watch)." NASA catalog weight=3
(average). NASA catalog ID #1140.
Bessel 1877 Jun 17 UT 22:30 Observed by Denett (England?, 2.75"
reflector) "Tho't he could detect a minute pt. of light shining out of
dark crater. (no high peaks in Bessel to catch light.)" NASA catalog
weight=3 (average). NASA catalog ID #194. ALPO/BAA weight=3.
On 1965 Aug 04 at UT 04:02-04:04 Bornhurst (Monterey Park, CA, USA,
10" reflector, x240, S=F-G) observed some star-like flashes in
Aristarchus in ashen light. The Cameron 1978 catalog ID=889 and the
weight=3. The ALPO/BAA weight=2.
On 1965 Oct 02 at 04:00UT an unknown observer saw a TLP (feature name
not given in the Cameron catalog - nor a description or reference). The
Cameron 1978 catalog ID=898 and weight=1. The ALPO/BAA weigh=1.
Theophilus 1972 May 19 UT 23:48 Theophilus observed by Ruchatz (51N
10E, 60mm refractor, T=4, S=2) "Diminution of brightness of the S wall
for a short time" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30
(1984), p53-61.
On 1985 Jun 14 UT 21:16-21:40 Observed by A.C. Cook Frimley, UK,
30cm reflector, seeing IV, transparency moderate, very litle
spectral dispersion noticed - Wratter 25 and 44a filters used)
UT 21:16-21:19 Censorinus slightly brighter in red and more
detail seen. Observed other features before and after this.
Checked again UT21:31-21:40 - same appearance. Torricelli and
Torricelli B in comparison looked normal with other craters of
similar size. ALPO/BAA weight=1.
Proclus NW ray 2003 Sep 03 UTC 02:46-03:07 Observed by Haas (Las
Cruces, NM, USA) "The curious reddish edge to the conspicuous bright
ray running N2 from Proclus is seen again (x321, x366 (S=1-3, T=3.5-
2.5). It lies on the SW side of the ray, with no corresponding blue
border on its NE edge. The effect persists as the Moon drifts across
the whole eyepiece field. However at 03:46 (x202) the coloured edge is
not recognized now, but perhaps only because of worse conditions (S=3,
T=2) 12.5" Newtonian reflector used." The ALPO/BAA weight=3.
On 2010 Apr 20 some time between UT 22:00 and 23:00 I.
Bryukhanov (Minsk, Zeiss Refractor at the Minsk planetarium)
observed an orange-brown tint a little to the west of Zollner
and Kant craters. Apparently images were obtained. ALPO/BAA
weight=1.
Agrippa 1961 Oct 17 UTC 00:32-00:52 Observed by Bartlett (Baltimore,
MD, USA) described in NASA catalog as: "Shadow of c.p. medium gray,
compared with black wall of shadow" 5" reflector x180. NASA catalog
weight=4 (high)
On 1969 May 24 at UT 02:40 Ricker (Marquette, MI, USA, 10" reflector)
and Kelsey (Riverside, CA, USA, 8"? reflector). Ricker saw pulsations
in Aristarchus, partly confirmed by Kelsey. Cameron comments that it is
suprising that Aristarchus could be seen at first quarter - Apollo 10
watch. The Cameron 1978 catalog ID=1142 and weight=5. The ALPO/BAA
weight=4.
Proclus 1969 Jul 22 UT 00:30? 01:15-01:25 observed by Classen
(Pulsnitz, E.Germany, 8" reflector), Leroy (Pittsburgh, 21.5" reflector
x310) and Cutter (Pennyslyvania) "Brightening of crater (Classen).
Alternatate brighening of S.part of crater at 15s intervals (too long
interval for atm.) while N. half remained constant. Leroy confirmed
Cutter. (Both confirmed Classen Apollo 11 watch)." NASA catalog weight=
5. NASA catalog weight=1151. ALPO/BAA weight=3.
Ptolemeus 1970 Apr 14 UT 00:45-01:30 Observed by Nelson Travnik
and Sergio Vianna (Matias Barbosa, Minas Gerais, Brazil, 4"
refractor, x250, x400, - observing conditions very good, Kodak
Wratten 15 and 23 filters used) "A kind of glimmering mist
lifted and wafted inside the shady hollow of the crater
(Apollo 13 watch)" NASA catalog weight=3 NASA catalog
ID #1248. ALPO/BAA weight=1.
Theophilus 1972 May 20 UTC 19:10-19:59 Observed by Haiduk (13.25E,
52.5N, 75mm refractor) "Well visible brihtening on the SW wall" S=2, T=
3 Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, pp53-61.
Proclus 1972 Mar 22 UT 19:50-21:55 Observed by Jewitt
(Middlesex, England, 6" reflector x150, S=7, T=4), Beddoes
(England), and Moore (Selsey, England, 12.5" reflector, x250,
x460, S=E, S=F) "At 1905h noted c.p. was invis. under all
magnifications. At 2050h saw minute star-like flash @ 0.5s
duration, followed by another 10s later, & another one 10s after
that. Occurred on N. crater floor. Proc. C was vis. Was using
blink device. Beddoe saw nothing unusual from 1850-1900h (prior
to event). Moore alerted, saw nothing unusual from 2100h on
(after flash. c.p. variation similar to rep'ts by Bartlett e.g.
ID=1309." NASA catalog weight=2. NASA catalog ID 1327. ALPO/BAA
weight=1.
On 1991 Apr 22 at UT 01:10-01:22 D. Darling (Sun Praire, WI, USA,
12.5", x99, seeing=7/10) observed that Piazzi-Smyth was
bright in red light but fuzzy in blue light. The Cameron 2006
catalog ID=424 and the weight=3. The ALPO/BAA weight=3.
SE of Ross D 1969 May 24 UT 05:06-05:20 Observed by Harris
(Tucson, AZ, USA, 21" reflector, S=F-P) "Multiple albedo
changes, 2 bright areas vis. at 05:06, reduced at 0508h
Whittier, CA, USA, 19" refractor?) NASA catalog weight=0 (very
unreliable). NASA catalog ID #874. However a letter by Harris
states: Variable transparency - colourless bright area SE of
Ross D with variable condensation. ALPO/BAA weight=1.
On 1993 Mar 30 at UT 19:30 an unknown British observer (Reading, UK)
noted that the crater at the end of the Alpine valley looked unusual.
However M. Cook (Frimley, UK) also observed the feature but found
nothing unusual. The Cameron 2006 catalog ID=457 and weight=0. The
ALPO/BAA weight=1.
On 1993 Mar 30 at UT19:35-21:15 J. Knott (England, UK, 8.5" reflector,
x180 and x216, seeing=II and Transparency=good) observed at 19:35 the
central peak of Alphonsus appeared to be extra bright although was
normal later, however the observer suspects that this was a contrast
related and was not confident to send out a TLP alert. The Cameron 2006
catalog ID=458a and 458b and weights=0. The ALPO/BAA weight=1.
Linne 1866 Dec 14 UT 20:00? Observed by Schmidt? (Athens, Greece?, 7"
refractor?) "Seen as a white spot, had been a fine black spot before as
seen by Schmidt. (Also Buckingham in Dec. 1866; also D 16,25th,27th, --
not LTP?" NASA catalog weight=0 (probably not a TLP. NASA catalog ID
146.
On 1991 Apr 22 at UT 02:03-02:14 D. Darling (Sun Praire, WI, USA,
12.5", x99, seeing 7/10) found, using a red and blue Moonblink
device that Atlas crater gave a blink, the dark spots inside the
crater have a dark nucleus in the blue filter. This effect was
not detected earlier that night. The Cameron 2006 catalog then
says "Atlas normal". The Cameron 2006 catalog ID=424 and the
weight=3. The ALPO/BAA weight=2.
Torricelli B 2002 Oct 14 UT 02:58-03:43 Observed by Gray (Winnemucca,
NV, USA, 152mm refractor x114, x305, seeing Antoniadi III, transparency
good) "I was out this morning (2:58-3:43 UT, October 14, 2002)
observing Torricelli B. At 3:17 UT the west sunlit wall of the crater
brightened from an intensity (Elger Scale) of 5.0 to 9.0. In actual
terms it went from slightly less bright than the walls of Picard to as
bright as the sunlit west wall of Dionysius. This was observed at 114x
in white light, where all three craters were in the field of view
simultaneously. This event lasted less than a minute and no comparable
brightening in Dionysius or Picard was seen. The wall of Torricelli B
returned to 5.0 in brightness. I continued to observe Torricelli B in
white light until 3:43 UT, but the brightness remained at 5.0. Before
the brightening I tried blinking Torricelli with the following
combinations of filters: Wratten Red 25 and Blue 38A, Red 25 and Blue
80, and Red 25 and Schott BG38 (Blue Green). Nothing showed up more
prominently in any combination except the Red 25-Blue 38A combination,
where Torricelli B became invisible in the Blue, probably because of
the filter density. Both the Blue 80 and Schott BG 38 seemed closer in
density to the Red 25 than the Blue 38A is. I could not see any details
inside Torricelli B during this session, including the bright spot on
the NE rim." The ALPO/BAA weight=3.
Atlas 1973 Apr 10 UT 18:37-19:49 Observed by Theiss (51N, 9.67E, 75mm
refractor, T=2, S=3) "N. wall of Atlas was yellow-green, several
magnifications tested with the same results" - Hilbrecht and Kuveler,
Earth, Moon & Planets, 30 (1984), p53-61
Piton 1960 Dec 26 ? UT 00:00? Observed by Schneller (Cleveland, OH,
USA, 8" Reflector, x53), "Red obscuration; less intense than Nov. (date
not given, but discussion suggests near SR, therefore Dec 28th most
likely date -- ancill. data given for 28th)." NASA catalog weight=3
(average). NASA catalog ID #732.
On 2009 Apr 02 at UT 21:45-22:05 C. Brook (Plymouth, UK,
5" refractor, x40 and x100, using red and blue gelatine
Edmund Optics filters (rose No. 47 and blue No. 80),
transparency poor due to thick haze. seeing was excellent)
observed that that the rays that crossed Mare Cisrium from
Proclus were brighter in red light than in blue. A similar
effect was also observed, to a lesser extent south of the
Mare. Non-mare Crisium rays from Proclus did not have this effect.
The TLP was not seen at the higher magnification of x100.
The ALPO/BAA weight=2.
Ptolemeus 2020 Jul 27 UT 23:00 N. Travnik (Brazil) observed
visually for 2nd time ever (first seen back in 1970), an
effect on the floor of this crater at local lunar sunrise:
"kind of glimmering mist lifted and wafted inside the shady
hollow of the crater". Almost certainly this is a combination
of atmopsheric seeing on the narrow shadow spires, but we
would like observers to look at this visually or obtain time
sequence images to try to replicate this effect. This report
is assigned an ALPO/BAA weight of 1 for now.
On 1978 Nov 08 at UT03:00 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x95, seeing 8/10) saw near Beer and
Timocharis (11W, 30N) a bright flash inside the dark area. It
appeared like a diamond twinkling in sunlight and was somewhat
dazzling to the eyes. Cameron wonders in this was a meteor?
The Cameron 2005 TLP catalog ID=39 and weight=2. This is an
ALPO observation. The ALPO/BAA weight is 3.
Aristillus 1973 Apr 10 UT 20:18-20:24 Observed by Pasternak (53.33N,
7.5E, 75mm refractor, T=3, S=3) "Faint reddish area at the SE wall of
Aristillus" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984),
p53-61.
Mare Vaporum 1969 Apr 24 UT 19:34 Observed by Bentley (England,
8" reflector, x320, S=E) "NW part of mare obscured for 4 min.,
gradually thinning." NASA catalog weight=3. NASA catalog ID No.
1123. ALPO/BAA weight=2.
Alphonsus 1960 Jan 06 UT 18:00 Observed by Warner and Hole (London,
England, 18" refractor and 24" reflector, Moon blink used) "Red spot.
Hole saw this on several other occasions(indep. confirm)." NASA catalog
weight=5 (very good). NASA catalog ID 727.
Near archimedes 2001 Sep 25 UT 08:30 Observed by Try (Whangarei, New
Zealand, 4" f/10 reflector) "observed two possible L.T.Ps. on the edge
of the terminator near the crater Archimedes. They appeared to be two
bright points of light about the size of Mount Piton. They seem to
form a triangle with Mount Piton. He observed them for two hours and
they were still visible when he ended his observing session. He was
observing with a 4" f10 reflector. Then Moon age was 7.9 days old and
the colongitude was 4.83. submitted a drawing showing the area where
the lights were observed." ALPO report. ALPO/BAA weight=1.
Alphonsus 1966 Jun 26 UT 04:30-04:40 Observed visually by
D.Harris and E.Arriola (Whittier, CA, USA, 19" reflector x146,
and spectrum, S=4, T=1-0) "Absorp. spectrum (visual) of c.p.
band at 475+/-5nm (1st est.); 2nd est. at 485+/-5nm. Band
degraded towards the viol. Band nr.Hydrogen Beta. as if
abnormally broadened. So sign of anything unusual visually in
central peak in white light. Absorption appeared only on C.P.,
not over walls. Calibration corrections put band at 491+/-4nm"
NASA catalog weight=5. NASA catalog ID #948. ALPO/BAA weight=5.
Large plume-like diffuse cloud over central peak, very
large compared to central peak (@ approx 30km diameter)
with intensity much different from other parts. Brightness
between walls and shadowed floor. Would take 3 minutes to
collapse, so continuously fed. 13-14 days later, at SS,
central peak was normal. Kuiper took photos after Kozyrev's
observations, but saw nothing abnormal. Drawing. Haas saw
nothing in 12inch reflector at the time. Cameron 1978
catalog TLP ID=705 and weight=4. ALPO/BAA weight=2.
Agrippa 1961 Oct 18 UT 00:43-01:00 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x180, S=2-3, T=5) "Shadow of
c.p. remained grayish, wall shad. normal black. Not due to
seeing as wall & landslide shad. not affected. Not caused by
refl. sunlight because other similar obs. showed different
aspects." NASA catalog weight=4. ALPO/BAA weight=2. NASA
catalog ID #750.
On 1969 May 25 at UT03:53-05:47 Ricke (Tucson, AZ, USA, 8" reflector),
Leasure (Tucson, AZ, USA), Freuland (Tucson, AZ, USA), Sheridan
(Wyoming, USA), and Harris, Tucson, AZ, USA). "At 0353h saw brightening
of 1s intermittent pulsations of 1 mag., confirmed by Leasure at 0357;
0400 Freuland saw brightening. At 0514h Ricke, 1 mag, at 0515h-0530 --
low amp. variations seen by Ricke & Harris. At 0525h Sheridan saw
bright. & puls. Harris at 0546h-47h saw 2 brightenings in crater.
(Apollo 10 watch seen in dark at gibbous phase!). (indep.
confirmation?)". The Cameron 1978 catalog ID=1146 and weight=5. The
ALPO/BAA weight=4.
Eratosthenes 1961 Oct 18 UT 01:05-01:25 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x180, S=P, T=G) "Fluorescent
violet on inner W(IAU) wall (reported as bright spot in MB).
NASA catalog weight=4 (high). NASA catalog ID #751.
Eratosthenes 1970 Apr 15 UTC 01:25-01:42 Observed by daSilva
(Brazil, 10" reflector x200 & 20" refractor x224, Seeing=good,
Transparency=Good). "Vis. blink? on lower c.p. Ilum. walls were
yellowish-white C.p. diamond brightness with a pt. flashing.
Turbulent atms. impeded confirm. Other features were normal
(Apollo 13 watch. S-IVB impact at 0109h, took 70 s to reach A12
Alsep." NASA catalog weight=3. NASA catalog ID #1252. ALPO/BAA
weight=3.
1972 Mar 23 UT 19:24 Observer: Rudolphi (48.58N, 10E, 60mm refractor,
Transparency=2) "Pure white very bright event" Ref: Hilbrecht & Kuveler
- Earth, Moon & Planets (30) pp53-61.
Schroter 1839 Jul 19 UT 22:00? Observed by Gruihuisen (Munich, Germany)
"Dark mist" NASA catalog weight=4 (high). NASA catalog ID #119.
ALPO/BAA weight=3.
Ross D 1969 May 25 UT 04:34-04:38 Observed by Cross (Las Cruces, NM, USA, 6" f/17 refractor) "Bright spot adjacent to
NE segment of crater, 1.5-2" at greatest extent & much
brighter than rim of Ross D. Fuzziness here & extensive
obscur. of detail E. of Ross D (Apollo 10 watch)" NASA
catalog weight=3, NASA catalog ID #1147. ALPO/BAA weight=3.
On 1980 Oct 17 at UT18:40-19:10 G. Blair (Weir, Renfrewshire,
Scotland, UK, 22cm reflector, seeing II, transparency excellent,
no spurious colour) noticed at 18:40UT that the bright central
peak of Alphonsus was elongated. At 18:41UT, at higher power,
the central peak separated from a bright point of light,
intensity about that of a 6th magnitude star. at 18:43UT a
filter check was made of the suspect point and surrounding
regions - slightly nrighter in red. At 18:50UT intensity of
bright point reduced to equivalent of 4th magnitude star. Noted
that Earthshine was the brightest that he had ever seen it. At
19:03 UT losing the Moon behind a chimney. UT 19:10 brief
appearance, bright point still seen at 4th magnitude. 19:27UT
the Moon disappears again. 20:15UT reappearance of the Moon and
Alphonsus appeared normal. The ALPO/BAA weight=2. This is a BAA
Lunar section observation.
Plato 1952 Apr 03 UT 20:45-21:30 Observed by Wilkins and Moore
(Meudon, France, 33" x460) whilst checking up on a 1923 28"
refractor sketch by W.H. Stevenson's, thry failed to detect a
prominent floor craterlet (featured in the 1923 sketch) just
inside the W wall. They suspected an obscuration.
Interestingly the whole floor was was reported to be lacking
in detail many hours later as observed by Cragg in the USA.
NASA catalog weight=5. NASA catalog TLP ID No. #550. ALPO/BAA
weight=2.
On 1989 Jun 12 at UT 21:18-22:25 G. North (Herstmonceaux, UK,
Coude, seeing=V) noted at 21:18UT that Torricelli B was
"barely visible"- possibly this was seeing related. M. Cook
(Frimley, UK, 8" reflector, seeing=IV) found Toricelli B to be
ëxtremely dull - impossible to judge shadows on floor in
contrast to Cens." Holmes (Rockdale, England, UK, 8"
reflector, seeing=II-III) at UT21:30 also found Toricelli B
difficult to find at magnifications less than 200x. Cameron
comments that "Dulling is common on it at high Sun but
illumination doesn't seem to be the cause or related". The
Cameron 2006 catalog ID=365 and weight=5.
The ALPO/BAA weight=2.
Plato 1970 Apr 15 UT 05:38-05:40,05:51-05:53 Observed by Cross
(Las Cruces, NM, USA, 108mm Schiefspiegler or 152mm refractor,
S=6, T=5.5=VG). The observer noted a lack of detail inside the
crater floor, despite visibility of detail outside the crater.
Spectra were normal for color. (obs. similar to historic
reports. Apollo 13 watch?)" NASA catalog weight=1 and catalog ID
#1253. ALPO/BAA weight=2.
Apr 25 UT 20:20 Observed by Bentley (England, 8" rteflector
x320, S=VG) "Flashing star-like pts, in area beyond the
terminator, (atmosphere?)" NASA catalog weight=1. NASA catalog
ID #1124. ALPO/BAA weight=1.
Alphonsus 1958 Dec 19 UT 20:00? Observed by Wilkins (Kent, UK)
described in the NASA catalog as: "Reddish patch on central
peak" 15" reflector used. NASA catalog weight=4. NASA catalof
TLP ID No. 711. ALPO/BAA weight=3.
Tycho 1940 Dec 09 UTC 04:00? Observer Barcroft (Madera, CA, USA). The
NASA catalog states: "Some luminosity on W. rim of outer slope". 6"
reflector used. NASA TLP catalog assigns a weight of 3 (average). NASA
catalog TLP ID No. #481.
Alphonsus 1969 Jul 24 UT 01:00-02:35 Observed by Fournier (Lowell, 6"
reflector x158) and Dillon (Massachuchusets, USA) "Fournier saw obscur.
& red in crater. 1 of the dark halos (NE) was very difficult to detect
-- seemed to be a whitish mist. Detail best seen in blue & green
filters. Dillon found halo much lighter than usual, with sharp boundary
washed out. Halo was darker thru blue filter, indicating red when it's
normally bluisg-green. Next nite it was normal. Worsening weather
stopped obs. (confirmation. Apollo 11 watch)." NASA catalog weight=5
(very good). NASA catalog ID #1185.
On 1987 Jul 05 at UT 21:18-21:38 H. Miles (Cornwall, UK, Moon's
altitude 19 deg) found the north west rim of Proclus was very bright
and when he alternated between red and blue filters got a colour blink
reaction. There is no Cameron 2006 catalog entry for this TLP report.
The ALPO/BAA weight=3.
On 1992 May 11 at UT 20:20-21:00 R. Amendsensvej (Esbjerj, Denmark,
10" reflector, x333) noted that Copernicus had "almost no disturbance.
Flash was seen between 2236:30 & 2236:40. Thus 10S". The Cameron 1978
catalog ID=444 and weight=1. The ALPO/BAA weight=2.
Bullialdus 1980 Oct 18 UT 20:15-20:25 Observed bt Amery
(Reading, England, 10" reflector) "Colour blink reaction in
English Moon Blink Device" BAA Lunar Section report. Cameron
suggsets that this might be a permanent coloured blink area.
Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA weight=3.
Fracastorius 1980 Oct 18 UT 17:55-18:15 Observed by Robinson (Devon,
England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink
reaction in English Moon Blink Device - inner wall brighter in red than
in blue light, despite other features appearing normal. BAA Lunar
Section report. Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA
weight=2.
Manilius 1980 Oct 18 UT 17:55-18:15 Observed bt Robinson (Devon,
England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink
reaction in English Moon Blink Device - crater surrounds bright in red
and dull in blue light" BAA Lunar Section report. Cameron 2006 catalog
ID=115 and weight=3. ALPO/BAA weight=3.
Plato 1980 Oct 18 UT 17:55-18:15 Observed bt Robinson (Devon, England,
260mm Newtonian, Seeing III, Transparency poor) "Colour blink reaction
in English Moon Blink Device - floor patches easily seen in red, not
so well seen in blue" BAA Lunar Section report. Cameron 2006 catalog
ID=115 and weight=3. ALPO/BAA weight=2.
La Hire 1922 Nov 28 UT 22:00? Observer Wilkins (England). NASA
catalog states: "Shadow cut thru by white streak (real LTP?.
Pickering's atlas shows same phase & col. & shadow is all
dark; elong. in peaks are N-S not E-W)" 15" reflectore used.
NASA Catalog assigns a weight of 4. NASA catalog TLP ID No. #
388. ALPO/BAA weight=2.
Manilius 1972 May 22 UTC 20:10-20:40 observed by Kern (48deg 45'N, 8deg
45'E, 60mm refractor) "The SW inner wall became brighter at times" -
Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
On 2009 Apr 04 at UT 20:30-20:45 C. Brook (Plymouth, UK) observed a
slight pinkish mottling on the floor of Plato. The effect was no longer
visible after 20:45UT. A telephone alert was put out to M. Cook and G.
North. The former saw no colour, but this was after the event finished.
The latter observer reported cloudy conditions. A.Cook was probably
observing at the same time as C. Brook, via a couple of remotely
controlled telescopes in Aberystwyth. The results (time lapse imagery
through narrow band filters) will be examined at a later date.
Plato 1972 Mar 24/25 UT 20:38-00:00 Observed by M.Burton (UK,
13.5" reflector, seeing IV-V, Transparency Fair, x180) UT20:38-
20:45 floor was darker in a red filter than in a blue. UT20:47-
20:56 JS Burgess (seeing 2/5, x200, with and without filters)
found everything normal (with and without filters). UT20:00-
20:07 and 21:30-21:35 A.J. Beddoes found everything normal (with
and without filters). However at 23:10 L.Fitton suspected that
the E (IAU?) floor of Plato had a red-brown cast, but could not
be quite sure. UT23:54-00:00 M.Burton, detected the floor was
darker in red than in blue light. Burton did not detect any
colour without the use of filters on either of the two occasions
that he detecetd a blink. In view of the fact that two observers
did not detect anything, albeit not concurrently with the TLP
reports, this TLP is being given an ALPO/BAA weight of 1.
On 1882 Feb 27 at UT 18:30-19:30 an unknown observer reported an
unusual shadow in Eudoxus. Apparently the shadow was seen to be normal
on 1882 Feb 25 at UT 20:30-20:45. The Cameron 1978 catalog ID=228 and
weight=3. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.
Eimmart 1913 Apr 14 UT 01:00 Observed by Pickering (Mandeville,
Jamaica, 6.5" reflector) "By this date crater was clear & at an albedo
~5?. Drawings compare Jan. 16 & Aug.9, 1913." NASA catalog weight=3
(average). NASA catalog ID #344.
On 2009 Apr 04 at UT 21:40 M.C Cook (Mundesley, UK) after receiving a
telephone alert call, examined Plato crater. Although she did not
report C. Brook's slight mottled pink on the floor of Plato, she did
report through that the floor patches looked darker than normal,
especially in blue light and in red they were not visible at all. In
white light they were darker than normal. A.C. Cook was probably
observing at the same time via a couple of remotely controlled
telescopes in Aberystwyth. The results (time lapse imagery
through narrow band filters) will be examined at a later date.
Note that this observation was made after C. Brook said that he could
no longer see his TLP. Therefore this constitutes a different TLP
as there had been a gap of 1 hour since the last TLP report.
Agrippa 1966 Aug 26 UTC 01:52-02:24 Observer: Bartlett
(Baltimore, MD, USA, 5" reflector x437) "Shadow of C.p. was
grayish, wall shad. was normal black, C.p.itself barely disting.
from floor" S=5, T=3. NASA catalog weight=4 (high). NASA catalog
ID #966. ALPO/BAA weight=1.
In 1962 Sep 09 at UT 01:42-02:00 Bartlett (Baltimore, MD, USA,
5" reflector, x180, S=5-4, T=3) observed in Agrippa the shadow
of the central peak to be grayish, not much darker than the
floor, estimated at 3deg bright, whereas on 1962 Jul 12, at col
28deg, in the 5" telescope the dhadow was anormal black and
sharply defined against the floor which was 3 deg bright. The
Cameron 1978 catalog ID=768 and the weight=4. The ALPO/BAA
weight=2.
Shadow of central peak barely distinguishable.
Residual wall shadow normal black. Landslip very
conspicuous, 10 deg bright. Cameron 1978 catalog
TLP ID=1040 and weight=4. Cameron 2006 Catalog
Extension ID=12 and weight=4. ALPO/BAA weight=2.
On 1974 Mar 3 at UT 19:06-20:20 J-H Robinson (Teighmouth, Devon,
UK, 10" refractor, x200, seeing=poor) got a Moon Blink reaction
on the South east wall of Plato, adjacent to the rim shadow and
alerted the BAA TLP network. Ford reported a negtive result at
19:35UT, although Robinson was still getting a blink reaction at
19:40UT, albeit fainter, red at times. Findlay at 19:43-19:52
and 20:00-20:05 saw nothing unusual. Robinson at 19:56UT no
longer saw a blink, but it returned at 20:05UT. Light in bothred
and blue filters. Not steady, but coming and going and gone at
20:09UT. Moore at 19:59-21:00, kennedy at 20:12-20:30, Taylor at
20:48-21:03 and Fitton at 20:05UT all got negative results. The
latter time coincides with Robinson's second blink reaction.
Cameron 1978 catalog ID=1390 and weight=1. ALPO/BAA weight=1.
On 1988 Jul 24 D. Darling (Sun Praire, WI, USA, 12" reflector,
x150, S=7/10, T=3) observed the following in Proclus: "At 0213
the previously observed gray area was 1/3 of July 22 and V
shaped and fanned out across the floor. Could see hint of knot
seen before. Craters named in 7/23/88 (#319) were all normal
this time too". Is it possible that this report refers to the
crater "Gray" rather than "Proclus" as the column field suggests
in the Cameron catalog? The Cameron 1978 catalog ID=333 and
weight=5. The ALPO/BAA catalog weight=2.
On 1981 Sep 08 at UT 21:28-21:34 P. Madej (Huddersfield, UK, seeing
III-IV and trasnaparency good) observed a light orange transparent
cloud extending from the north east inner corner across over the floor
of Plato. Camero comments that this report was confirmed by 3 othr
observers. The shape of this clud varied. The Cameron 2006 catalog ID=
153 and weight=4. The ALPO/BAA weight=3.
Parry 1974 April 03 UT 01:10-01:45 Observed by Porter (Narragansett,
Rhode Island, USA, 6" reflector, S=F, T=2) "Darkening of floor &
brightening of central crater. Pulsations for 1 min. Albedo of LTP=2
(fl.), 6.5 (c.p.). Normal floor=3?. Floor seemed darker than earlier &
approached surrounding plain(=2) while N-S streak seemed more
conspicuous. Pulsations same freq. as star excursions so prob. due to
terr. atm. aberr. Streak most conspicuous at 0145h" NASA catalog
weight=2 (poor). NASA catalog ID #1391.
On 1983 Aug 19 at UT 07:15-07:30 D. Louderback (South Bend, WA, USA,
3" refractor, x150) found that the direct sunlit side of Mons Piton
mountain (E) was brighter than (his designated) points C and D and this
happened at the same time as some "blurring"at 07:15UT. The darker
side, between C, A and B were not so dark through a red filter as
through a blue filter (this was the opposite of what had been seen
before at a high sun angle). Louderback suspects that there had been a
colour change since he last observed. He also noted that in red light
the whole lunar disk appeared fuzzy and out of focus. Louderback noted
a 1 sec brightness on the east slope and the whole mountain sharp in
blue light. The Moon's altitude was low though. Brightness measurements
were 4 in blue light and >= 4.6 in red light and "so illdefined almost
blended into plain". Cameon commnets that a telescope colour/focussing
issue may have been at work here! The Cameron 2006 catalog ID=226 and
weight=4. The ALPO/BAA weight=1.
On 1989 Jul 14 at UT 03:28 D. Darling (Sun Praire, WI, USA) found a
darkening in the crater Proclus, but the shadow seen by Cook and Moore,
from a few hours earlier was not seen. The Cameron 2006 catalog ID=371
and the weight=2. The ALPO/BAA weight=1.
Campanus 2014 Jan 11 UT 22:00-22:30 S.Bush (UK, 6" SCT, x180,
seeing average) made a sketch of the Campanus and Mercator
craters. He found that the central peak of Campanus difficult
to resolve and the floors of both craters were devoid of
detail. Mercator was the lighter shade of the two floors.
Earlier at 19:47 UT M.Brown (Huntingdon, UK) imaged this
region and using Registax resolved details on the floors of
both craters, though Mercator clearly was slightly lighter in
floor shade and had less detail on its floor than Campanus.
The most likely explanation was that it was just seeing
effects blocking the visibility of detail - this of course is
less of a problem for a Registax usid on the CCD image.
However just to be sure this observation is being given an
ALPO/BAA TLP weight of 1, to encourage visual observers to
attempt this observation under similar illumination and
seeing.
On 1991 Apr 25 at UT 02:14-02:37 UT D. Darling (Sun Praire, WI,
USA, 12.5" reflector, x64, S=7/10, T=4) found that after
sketching Gassendi, that at 02:14 the central peak was very
bright in red light, and barely detectable in blue light. By
02:26UT a strong blink was noticed on the NW rim, being very
bright in the red filter. Effect still present at 02:32UT. The
effect was not seen earlier at 01:57UT. The Cameron 2006 catalog
ID=425 and weight=4. The ALPO/BAA weight=3.
In 1875 Jul 14 at 02:00UT Davidson and Loftus (HMS Coronation, Gulf of
Siam Champion Bay, long 99deg, using naked eye and binoculars) observed
"a luminous projections from upper (N?) limb. Phenom. was absent there
on next nite, but a smaller 1 at another pt. (not an LTP? - but many
such repts)". The Cameron 1978 catalog ID= and weight=5. The ALPO/BAA
weight=3.
Alphonsus 1959 Feb 18 UT 21:00? Observed by hole (Brighton,
England, 24" reflector) "Red patch (Moore in Survey of the Moon
says Jan. '59). Moore says, Warner, in Eng. saw it bright red in
an 18-in refr. Hedervari & Botha in Hungary saw red patch &
several in US (indep. confirm. ?)" NASA catalog weight=5. NASA
catalog ID #714. ALPO/BAA weight=5.
On 1991 Apr 25 at UT 02:34-02:37 UT D. Darling (Sun Praire,
WI, USA, 12.5" reflector, x64) found that Atlas had spots in
it that were "more intense in blue". No blinks were detected
elsewhere on the Moon apart from Gassendi. The Cameron 2006
catalog ID=425 and weight=4. The ALPO/BAA weight=2.
On 1991 Feb 25 at UT 01:26-01:49 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x248, seeing=10/1, transparency=good) found
Gassendi's western rim to be bright in red and diffuse in blue
light. A sketch was provided. The Cameron 2006 catalog ID=420 and
the weight=4. The ALPO/BAA weight=2.
On 1979 Dec 29 at UT 17:45-18:20 Crick (Merchtem, Belgium, 6"
reflector, x140, seeing=III) found a violet spot in the NW inner wall.
The floor was obscured of detail on the northern half. All other
regions studied appeared normal. Observer unsure if this was a TLP or
spurious colour. Cameron 2006 catalog ID=80 and weight=3. ALPO/BAA
weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17" reflector)
and Fisher (Colfax, CA, 8" reflector, x300) observed a red glow in
Anaximander in the dark part of the Moon. The Cameron 1978 catalog ID=
784 and weight=5. The ALPO/BAA weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17"
reflector) observed a red glow in Aristarchus in the dark
part of the Moon. The Cameron 1978 catalog ID=
784 and weight=5. The ALPO/BAA weight=3.
Gassendi 1979 Dec 29 UTC 20:09-22:04 - Observer: Cook (Frimley, Surrey,
UK) "Colour seen - almost certainly spurious colour and not a TLP".
ALPO/BAA weight=1.
On 1991 May 24 at UT 20:00? Romualdo Lourencon (Sao Paulo,
Brazil, 60mm refractor, seeing=III) detected a circular cloud in
Jansen B and H? (Gazateer report says F and K). "The crater of
the event 100km diam. compared to Copernicus, dark with crescent
obscured region below it. Was S of Jansen. A circular depression
there was before LTP in darkness. Wonders if circ. depr. was
shadow of cloud? The Cameron 2006 catalog ID=428a and the
weight=3. The ALPO/BAA weight=1.
Alphonsus - 1966 Aug 27 UTC 06:05-06:25 observed by Haris, Eastman,
Bornhusrt, Cameron, astronet observers (Tucson, AZ, USA - 21" reflector
x200) and by Corralitos observatory (Organ Pass, NM, USA, 24"
reflector) "W. dark-haloed area varying & the small dark-haloed (40%)
area also varying. Seen by others present incl. the author (WBC) who
attributes the variations to "seeing". Not confirmed by Corralitos MB."
NASA catalog weight=1 (low). NASA catalog ID=968.
Ross D area - 1966 Aug 27 UT 06:06-06:25 observed by Harris, Eastman,
Bornhusrt, Cameron, astronet observers (Tucson, AZ, USA - 21" reflector
x200) and by Corralitos observatory (Organ Pass, NM, USA, 24"
reflector) "Obscuration on E. wall, bright area E. of crater at its
brightest. (I (WSC) was present at obs. but did not note anything not
attributable to bad seeing, but am not familiar with the area in normal
aspect. Others present did not see anything unusual, but Bornhurst &
Eastman confirmed). Corralitos Obs. found due to changing light
conditions. NASA catalog weight=1. NASA catalog ID=967.
ALPO/BAA weight=1.
On 1988 Jul 25 at UT03:15 H. Davis (Madison, WI, USA) stated that
Proclus was normal apart from a "slightly darker area in SW (Ast) SE
(IUE) corner." The Cameron 2006 catalog ID=334 and the weight=0. The
ALPO/BAA weight=1.
40-54W, 54N-60N i.e. nr. South? or J.Herschel 1913 Jun 15 UT
22:00? Observer: Maw (Surrey, UK, 6" & 8" refractors) "Small
distinct redish spot which became diffused into a patch as
term. advanced on the plateau NE of the crater South. When the
plateau was on the term. (Goodacre says the crater was
J.Herschel for same date -- 2 different spots or misident. for
one?" NASA catalog weight=3. NASA catalog ID #345. ALPO/BAA
weight=2.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5"
reflector, x300, seeing=fair and transparency=good) through the
red filter at 02:18UT saw a bright area on the west wall of
Aristarchus crater become 2x brighter than normal then faded
back to normal in < 1 min duration. The spot was 8km centred on
sigma=0.682 and eta=0.397. No events seen at Kepler (Apollo 10
watch). The Cameron 1978 catalog ID=1149 and weight=4. ALPO/BAA
weight=3.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5"
reflector, x300) suspected a short duration flare up on the W
wall of Aristarchus at 0.682 and 0.397, but it may have been due
to poor seeing. No events seen at Kepler (Apollo 10 watch). The
Cameron 1978 catalog ID=1149 and weight=4. ALPO/BAA weight=1.
On 1975 Feb 22 at 19:00-22:50 Fitton (Lancashire, UK, 8" reflector,
seeing=II-III-I) saw Aristarchus (at 19:00UT) blue, with no obscuration
visible in white, red or blue filters. This was not a telescopic
effect. "Obs. 4.5h. Says it & next 5 nites obs. were due to high
pressure system W. of obs.". Foley found nothing unsual in Aristarchus
in his observing session, which overlapped Fittons. The 1978 catalog
ID=1396 and weight=3. The ALPO/BAA weight=1.
On 1975 Feb 22 at 20:04-22:50 P.W. Foley (Kent, UK, 12" reflector,
seeing=good) observed Prinz to have a diffuse white obsecuration. There
were pulsations of 30-50sec intervals. Effect ceased at 22:50UT and
indeed was fading earlier from 22:35UT. Photgraphs were taken but
showed nothing unusual and no colour. Aristarchus was also negative.
The Cameron 1978 catalog ID=1396 and weight=3. The ALPO/BAA weight=2.
On 1980 Dec 18 at UT20:46-23:58 A.C. Cook (Frimley, UK, 12" reflector,
40-250x, S=IV and transparency good) found the north west wall to be
brighter in red than in blue light, however the effect faded during
21:29-21:41UT and was gone by 22:40UT. There was however spurious
colour on the north west wall. M. Cook (Frimley, UK) found the central
peak to be both bright and diffuse, and brighter in red than in blue
light during 20:52-20:57UT, however at "22:53-23:58 c.p. very bright &
previous area decreased in size. No detail in white or red, just
visible in blue. Sketch (J. Cook) Orange out on NW rim & on NW side of
c.p. Similar effects seen on other craters. (madej) c.p. & W. rim wall
very sharp. c.p. disappears in yellow but still seen in purple.
(pedler) c.p. > red than blue but no obstruction. W wall interior
dusky, darker in blue." A.C. Cook's photo depicts the central peak as
very bright. Cameron 2006 catalog TLP ID=120 and weight=5. ALPO/BAA
weight=2.
On 1992 May 13 at UT 20:16-21:29 several observers reported a TLP in
Plato mostly concerning the visibility of floor craterlets, however
observer seeing varied from III-V. North (UK, 18.25" reflector)
reported "Colouration and floor craterlets very prominent. Seeing
Antoniadi V, Transparancy Poor.". Foley (Kent, UK, 12" reflector
seeing=III-IV) found the floor to be bright and in the better moment of
seeing detected floor craterlets. The WNW spot was misty some of the
time. Moore (Selsey, UK, 15" reflector, seeing V) had very poor seing
conditions. J.D. Cook and M.C. Cook (Frimley, UK, 3.6" reflector,
seeing II-III) used a CCD camera at 22:11 UT. The Cameron 2006 catalog
ID=445 and the weight=5. The ALPO/BAA weight=2.
On 1983 Jul 21 at UT 21:02-23:18 P.W. Foley (Kent, UK, 12" reflector,
seeing=III) found the region around the cleft on the souther rim to be
out of focus - however atmospheric conditions were turbulent until
23:18UT. An unsual dark triangular region (long base against rim) was
seen to extend from the inner rim at 12 o'clock onto the floor for 13-
16km. The crater had lots of detail elsewhere. M. Cook (Frimley, UK)
found the south east to soth west to be obscured again, but not as
badly as she had seen on the 20th July. J. Cook (Frimley, UK) found the
dark region had 2 white bands on the side and the south west wall was
blurred like it was on the 20th July - this time tough colour was not
present. There were also two light patches on the floor. Mosely
(Coventry, UK) observed the south wall at x120 and found the wall out
of focus at the 11 o'clock location. Through a yellow filter he saw a
"white mistiness: on the top of the southern rim and only the south
east cleft could be seen (no colour). By 22:40-23:00 the effect had
cleared up. No dark triangular patch was seen. When Marshall (Surrey,
UK) observed (22:30-03:00) nothing unsual was seen, though a sketch
provided shows a light patch on the floor located at 11 o'clock. All
observations, made by all observers had some atmospheric turbulence,
however trsnparency was good. The Cameron 2006 catalog ID=225 and the
weight=5. The ALPO/BAA weight=3.
Aristarchus 1969 Jul 26 UT 02:15-03:00 Observed by Jose L. da
Silva (Rio de Janeiro, Brazil, 13" refractor) "Unusual
brightness whole time in center of W. inner slope; rest of
crater & Herodotus appeared normal. SW to NW inner slope had
pronounced brightness. Aris. still in dark! Apollo 11 watch)."
NASA catalog weight=3. NASA catalog ID=1186. ALPO/BAA weight=1.
Aristarchus 1969 Jul 26 UT 02:30-03:00 Observed by Mauro Migon
(19" refractor), Julio Nogueira (10" refractor), Wairy Cardoso
(13" refractor) all from Rio de Janeiro, Brazil "Crater was
gray-bluish, different from any other region & unusually bright.
Cardoso saw brightening, used blue, red, green & neutral
filters. Apollo 11 watch, Jose da Silva says obs. no good, obs.
was inexperienced. However it is similar to many other obs. with
much experience)." NASA catalog weight=2. NASA catalog ID
No. 1187. ALPO/BAA weight=1.
On 1992 May 13 at UT 22:30 R. Turner (Wolverhampton, UK, 3.6"
reftactor, x50) noticed that there was a white spot on the WSW rim that
he had not seen earlier. The Cameron 2006 catalog ID=445 and weight=5.
ALPO/BAA weight=1.
Gassendi 1951 May 17 UT 22:45 Observed by Wilkins (Kent,
England, 15" reflector) "Bright speck glowed for 3s. (meteor ?)"
This was to the W of the central Mts and about the same
magnitude as a 4th mag star to the naked eye. JALPO Vol 5 No 8
p4, quotes a 1s duration. NASA catalog weight=0. NASA catalog
weight=544. ALPO/BAA weight=1.
Pico 1976 Mar 12 UT 21:00? Observed by Findlay (England?) "A ray seen
extended fr. mt. in SW (IAU?) direction -- likened to a hockey stick.
(not seen in Pickering's photo atlas at col.=53 deg)." NASA catalog
weight=3 (average). NASA catalog ID #1430.
On 1963 Nov 28 at UT 00:30-01:45 Barr, Greenacre, Hall and
Dungan (Flagstaff, AZ, USA, 24" refractor, and 69" reflector)
observed pink on the outer SW rim and a red spot towards the S of
this. A red spot was seen on the eastern side of Vallis Schroteri
but only by Barr and Dungan. Other features checked for
atmospheric spectral dispersion and chromatic aberation - but the
colours in Aristarchus were not due to these. Smaller 12" scope
checked but no effects seen - presumably due to resolution and
image contrast issues? Pink on the SW rim may have been seen in a
69" scope by Boyce and Ford. ALPO/BAA weight=4.
Herodotus 1966 Jun 30 UTC 03:10-03:35 Observed by Bartlett (Baltimore,
MD, USA) described in the NASA catalog as: "Bright pseudo-peak again
vis. within floor shadow. Peak est. 5 bright. Had seen it at successive
lunations in '66" 4" x280 refractor used. NASA catalog weight=4 (high).
NASA catalog TLP ID No. #950. ALPO/BAA weight=3.
Herodotus 1950 Jun 27 UTC 02:30 Bartlett (Baltimore, MD, USA) reported
a bright point in crater. This is mentioned in the Middlehurst TLP
catalog but not in the Cameron catalog. The source comes from a
Strolling Astronomer article. ALPO/BAA weight=3.
On 1992 Mar 16 at UT 00:39-01:14 D. Weier (Sun Praire, WI, USA, 11"
reflector) at 00:39UT noted some soft, diffused, faint īllumination
within the shadow projected over the Cobra Head area, though it had a
sharp appearance to the edge of the shadow. D. Darling (Sun Praire, WI,
USA, 11" reflector) was taking photographs from UT 00:51 and making
drawings and visual descriptions. The first 3 photographs in the
sequence have the crater as normal. Four other photographs reveal an
abnormality. Seeing conditions were excellent and a great deal of
surface detail was seen inside Aristarchus crater - however the
apeparance of the Cobra's Head was "washed out" and again shadows near
to this were illuminated. The NASA catalog ID=442 and the weight=5. The
ALPO/BAA weight=3.
Aristarchus 1973 Feb 14 UTC 18:31-18:34 observed by Fuger (49N, 8.42E,
75mm refractor, T=1, S=2) "Violet colours on S. of the crater" -
Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 2001 Aug 30 at UT20:35-21:15 C. Brook (Plymouth, UK) found a dimming
in the central peak of Alphonsus, however it had returned to normal by
Aug 31 UT 00:29-00:50UT when A.C. Cook (Alexandria, VA, USA, 8"
reflector) examined the area, though there were some slight brightness
variations that were attributed to seeing conditions. The ALPO/BAA
weight=2.
On 1891 Oct 14 at UT 18:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw is Schroter's Valley and the vicinity
"Varitions in vapor column and visibility of craterlets A, C and F
(Plate B) in early period at Peru. Directional vaporjet towards F
varied but was always continuous. Later, in Musa. There was a break in
it. D was quiescent in early period. (due to change in telescope &
atmosphere ? Time estimated from given colongitude)." Cameron 1978
catalog ID=273 and weight=3. ALPO/BAA weight=2.
On 1993 Apr 03 at 23:39UT C. Adams (FL, USA, 24" reflector, x168)
noticed a "translucent orange" colour in Gassendi crater within a 35deg
sector (apex at the centre) - row of 3 central peaks extending west -
the western central peak appeared as a dome with a summit craterlet.
The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA
weight=3.
On 1993 Apr 03 at 23:39UT D. Weier (Sun Praire, WI, USA, 7x50
binoculars) observed 2 flashes within the Proclus crater. The Cameron
2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=2.
Cavendish 1956 Jan 24 UTC 20:34-20:45 Observed by Houghton and Warner
(England) "Variable flashes seen from W. inner(?) wall of crater, then
a little inside the terminator. Flashes began with a bright glare at
20:34, were very bright for ~3 min, then faded. Flash rate
approximately every 1.5 sec. Other point like peaks did not flash. Also
indications were seen of reflections of flashes from E. (inner?) wall
and the crater's floor was faintly lit by a glare. Ref: Strolling
Astronomer p27, Vol 45, 2003. 17cm reflector x230. Seeing good-
excellent. NASA catalog assigns this observation a weight of 4 (good).
NASA TLP ID No. #631.
Hislop of England? saw Aristarchus as nebulous at the centre, despite
the fact that elsewhere features were well defined. The Cameron 1978
catalog ID=246 and the weight=3. The ALPO/BAA weight=2.
On 1985 Jun 29 at UT 22:56 M.C. Cook (Frimley, UK, seeing poor)
observed that Torricelli B looked as bright as a mountain to its south
west - no colour was seen. Cameron comments that this was similar to
Marshall's 1985 Jul 1 observation. The cameron 2006 catalog ID=278 and
the weight=3.
Promontory LaPlace 1977 Jan 31 UT 20:49-23:00 Observed by Foley
(England, 11.75" reflector, x360), Prout (England, 4" refractor or
reflector?), Findlay (Dundee, Scotland, 10" reflector, x180, S=VG),
Ford (Dundee, Scotland), Mooney (Dundee, Scotland) "With filters in
eyepiece, tho't he saw a possible darkening in the blue but no
variation in red. Altho. a deep shadow is normal to the W. of the cape
at this period, (then cape must have a slope > 30deg!). he wondered if
shad. was more extensive than usual? Prout noted a dark inky coma-
shaped spot. Dundee obs. concluded it was a shadow. Took photos.
Analysis of them was underway at time of rep't." NASA catalog weight=5
(very high). NASA catalog ID #1462.
Herodotus 1971 Jul 05 UT 03:48 Observed by Bartlett (Baltimore,
MD, USA) described in the NASA catalog as: Pseudo-c.p. I=
4(albdeo) appeared to cast a distinct shadow. 1st time seen.
(Apollo 15 photo shows an apparent slight elev. nr. center --
very very low hills? 5" refelctor x79,283x, NASA catalog weight=1
(low). ALPO/BAA weight=2.
On 1963 Nov 28 at UT 05:00-06:00 Greenacre, Barr, Hall and
Dungan (Flagstaff, AZ, USA, 24" refractor) observed a deep violet
area form on the western exterior of Aristarchus, and a less deep
violet area form to the eastern edge of Aristarchus. As these
were becoming stronger, a blue-like haze formed on the sunlit
floor of Aristarchus, that obscured underlying detail. The
ALPO/BAA weight=2.
E. of Picard 1948 Aug 16/17 UTC 22:30-02:26 Observed by Moore & Baum
(Chester, UK) described in NASA catalog as: "2 areas E. of Picard
appeared featureless. Cloud-like patches, 12(?)inch reflector. NASA
catalog weight=4 (high). NASA catalog ID No. #509.
Alphonsus 1966 Aug 28 UTC 06:00-08:00 Observers from Astronet (Tucson,
AZ, USA). NASA catalog states: "Brightenings in 2 dark patches & near
fainter (40%) dark patch (40% of way from the c.p. to W. wall). 21"
x200 reflector used. NASA catalog weight=2 (poor). NASA catalog TLP ID
No. 969.
On 1997 Oct 13 at UT11:09-11:21 D. Rodway (Oamaru, South Island, New
Zealand, 8.5" reflector, x270) saw a deep salmon-pink colouration in
the south east corner interior of the crater Aristarchus. This colour
was confirmed by the observers wife. By 11:21 UT the colour had faded
completely. Rodway had been a lunar observer since 1958, using a wide
range of instruments from 3 inch refractors to 12 inch reflectors and
had observed a TLP in Gassendi back in 1966 (from L'ondon, UK), and so
was an experienced observer. The ALPO/BAA weight=4.
On 1975 Mar 24 at UT19:08-19:45 P.W. Foley (Kent, UK) observed blueness
in the North East (Classical?) corner of Aristarchus. Moon blink seen -
pale in red. Most other observers clouded out. The ALPO/BAA weight=3.
Herodotus 2002 Sep 18 UT 22:00 Observed by Raffaello Lena (GLR,
Italy). Event described was of two pseudo-peak/hill-like
features, one on the southern floor of the crater, and another
just slightly to the NW of the centre. on the southern
floor of the crater. Lena suspects a combination of seeing
effects and albedo markings on the floor. However this effect of
two spots on the floor has not been repeated again.For further
information, theory, and a sketch please see Fig
5 in this web link:
http://utenti.lycos.it/gibbidomine/analisi123.htm ALPO/BAA
weight=2.
Aristarchus 2014 Dec 04 UT 03:14-03:15 M.P. Homan (Grand Rapids,
MI, USA, Nikon P520 x48) 11 digital images taken. These show
possible blue colour in the Aristarchus area e.g. on the ray
between Herodotus an Aristarchus. ALPO/BAA weight=1.
On 1984 Nov 05 at UT18:00 Marshall (England) noted that there was no
normal brightening on the floor just next to the southern most
craterlet. The Cameron 2006 catalog ID=251 and the weight=2. The
ALPO/BAA weight=1.
On 1975 Apr 23 at UT 20:30 J-H Robinson (Teighmouth, Devon, UK, 260mm
reflector, x200). Observer was observing since 20:30UT, at 21:00UT
though they noticed red on the outside south wall of Aristarchus, a
hazy ill defined area that was larger in a red filter than in blue
filter, and outside east wall was bright in red. At 21:08UT the outside
west wall of Aristarchus no longer gave a colour blink reaction, and at
21:22UT the colour blink on the southern end of the crater ceased, but
the image blur remained (in both red and blue filters) despite the rest
of the crater being sharp in detail. Observations ceased at UT 21:35
because the blurring at the southern end seemed to be normal and this
was confirmed when checked with photographic atlases. Other craters
such as Proclus, Pickering, Tycho, Gassendi, Copernicus, Alphonsus,
Plato, Menelaus, Manilius, Linne and Theophilus, showed no colour blink
reactions. However Picard had a red bright blink from 20:30-20:40 and
the permanant blink on the N. Floor of Fracastorius was detectable.
Also Plato floor shadings were clearer in red than in blue -
intermittently. This is a BAA lunar section observation. No estimation
of transparency or seeing is given, nor any comment on whether spurious
colour was seen in any craters visually. ALPO/BAA weight=1.
Promontoroum Agarum. On 2015 Nov 24 UT 00:50-01:15 J. Albert
(Lake Worth, FL, USA, Celestron C11, x224, seeing 4/10,
transparency = 3rd magnitude) observed that this feature was
slightly brighter through a red Wratten 25 filter than
through a blue Wratten 44a filter. ALPO/BAA TLP weight=2.
Aristarchus 1972 May 25 UT 19:32-19:38 Observed by Leitzinger (8.75E,
48.75N, Germany, 60mm f/15 telescope T=2, S=2) "Bright point at SE wall
well visible, colour changed to orange shortly before it disappeared"
published in Hilbrecht & Kuveler (1984) Moon and Planets, Vol 30, p53-61.
On 1980 Sep 22 at UT05:00? D. Louderback (South Bend, WA, USA, 8"
reflector, x140 and 2.5" refractor) observed in Promitorium Agarum that
one of his pre-designated points, called "A", through to "C and "D" was
at least 5 brightness points brighter in red than in blue light. The
reverse was true on Sep 25th. Tonight the red seemed to be on a narrow
strip on the western edge. The Cameron 2006 catalog ID=109 and the
weight=3. The ALPO/BAA weight=3.
Eratosthenes 1936 May 04 UT 05:40 Observed by E.P.Martz
(Mandeville, Jamaica) "Detected bright spots on floor" NASA
catalog weight=3 (average). NASA catalog ID #414. Ref. Haas, W.
1942, J.Royal.Ast. Soc. Canada, 36, 398. ALPO/BAA weight=1.
On 1963 Nov 28 at UT 22:30-00:00 Fisher (Colefax, CA, USA, 8"
Newtonian reflector)observed a yellow on crater rims adjacent to
Anaximander. Yellow colour also seen on Aristarchus that night.
The ALPO/BAA weight=1.
On 1979 Dec 02 at UT 00:36 D. Darling (Sun Praire, WI, USA, 12.5"
reflector, x349, seeing? 9-10/10 at 32 deg altitude) observed a bright
flash between Aristarchus and Prinz crater on the illuminated part of
the surface. The Cameron 1978 catalog ID=76 and weight=3. The ALPO/BAA
weight=2.
Aristarchus 1973 Apr 15 UTC 19:03-20:13 observed by Pasternak (53deg
20'N, 7deg 30'E, 75mm reflector) "N wall was blue to violet, beginning
disappearance at 20:08UT., end at 20:13UT." - Hilbrecht and Kuveler,
Earth, Moon & Planets, 30 (1984), p53-61
On 1981 Oct 11 at UT04:45-05:03 D. Louderback (South Bend, WA, USA, 3"
refractor) detected a violet tinge on the dark nimbus of Aristarchus,
however by 05:13 the coloured tinge had gone. Louderback suspects an
atmospheric effect. The Cameron 2006 catalog ID=155 and weight=0. The
ALPO/BAA weight=1.
Aristarchus 1973 Feb 15 UTC 17:07-19:31 Observed by Theiss (51N, 9.67E,
75mm refractor) "Area 4-5 diameters of Aristarchus were coloured
clearly yellow to red" Ref: Hilbrecht & Kuveler (1984) Moon & Planets
30, pp53-61.
Aristarchus - 1969 Jul 27 UT 05:00-07:00 Observed by W.
Cardoso (Rio de Janeiro, Brazil, 13" Refractor) "Brightening.
Filter used, (Jose da Silva says obs. no good, obs.
inexperienced. Apollo 11 watch)." NASA catalog weight=0. SA
catalog ID No. 1188. ALPO/BAA weight=1.
Pythagoras-Cleostratus 1974 Feb 05 UT 01:45,02:45 observed by
Lord (St Anne's-on-Sea, Eng., 3" refractor, x135) "Event
normal in integrated light. Light, full surface detail in red
filter, dark, with full surface detail in blue filter. Other
term. features did not show it. Only E.floor of Pythag.,
Babbage northern crater chain & NW floor of Cleostr.
(According to Fitton's criteria this was a tenuous gas above
the surface. Date given as 5th, but term. was at least 3deg
E. Therefore these features were in the dark then. Ancill.
data given for 6th)." NASA catalog weight=3. NASA catalog
ID=#1387. ALPO/BAA weight=3.
Pythagoras-Cleostratus 1974 Feb 05? UTC 01:45,02:45 observed by Lord
(St Anne's-on-Sea, Eng., 3" refractor, x135) "Event normal in
integrated light. Light, full surface detail in red filter, dark, with
full surface detail in blue filter. Other term. features did not show
it. Only E.floor of Pythag., Babbage northern crater chain & NW floor
of Cleostr. (According to Fitton's criteria this was a tenuous gas
above the surface. Date given as 5th, but term. was at least 3deg E.
Therefore these features were in the dark then. Ancill. data given for
6th)." NASA catalog weight=3 (average). NASA catalog ID=#1387.
Manillius 1969 Jul 27 UT 05:45-05:46 Observed by Wairy Cardoso
(Rio de Janeiro, Brazil, 13" refractor, x360) "Bright spot in
Manillius (Apollo 11 watch, J. M. L. da Silva says obs. no good
because of inexper. of obs)" NASA catalog weight=0. NASA catalog
ID #1189. ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm
reflector, thin streamers of cloud across sky, but no wind)
Aristarchus had a faint pale yellow tint along the rim and the
crater was very bright. No detail seen in in Vallis Schroteri.
Yellow spot also seen on the northern limb (Carpenter and
Pythagoras?). Both effects had been seen the previous night and
were confirmed by friends. Colour still present when observing
stopped at 03:00 UT. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm
reflector, thin streamers of cloud across sky, but no wind.)
Carpenter had a yellow tint along the W rim. Ywllow tint seen
on Pythagoras and also Aristarchus. Effect had been seen the
previous night and were confirmed by friends. Colour still
present when observing stopped at 03L00 UT. The ALPO/BAA
weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm
reflector, thin streamers of cloud across sky, but no wind.)
Pythagoras had a yellow tint along the W rim. Ywllow tint seen
on Carpenter and also Aristarchus. Effect had been seen the
previous night and were confirmed by friends. Colour still
present when observing stopped at 03L00 UT. The ALPO/BAA
weight=1.
Menelaus 1969 Jul 27 UT 1969 Jul 27 UT 06:27-07:30 Observed by
Wairy Cardoso (Rio de Janeiro, Brazil, 13" refractor, x360)
"Brightening in Menelaus (Apollo 11 watch, J. M. L. da Silva
says obs. no good because of inexper. of obs)" NASA catalog
weight=0. NASA catalog ID #1189. ALPO/BAA weight=1.
Alphonsus (black spot, upland #1) 1965 Oct 08 UT 05:48-08:23 Observed
by McCord (Mt Wilson, CA, USA, 60" reflector + spectrograph) "Line
depth ratios a/b(H?), c/d (K?) were significantly low for upland #1 &
abnormally high for Alphonsus black spot, but not as pronounced as the
other area was high compared with 23 other areas" NASA catalog weight=5
(very good). NASA catalog ID #899.
Aristarchus, Herodotus - 1967 Sep 16 UTC 23:50-23:55 observed by
Seeliger (Dresden, Germany, 30" reflector, 90, 140x) "Dark streaks on
E.(ast. ?) outside walls of both craters. No shadow from Herod. wall.
Drawings (wall < 18 deg slope if no shadow normally)." NASA catalog
weight=3 (average). NASA catalog ID=#1044.
Aristarchus 1976 Jan 14 UT 20:00-23:00 Observed by P.W. Foley
(Wilmington, Kent, UK) - Deep Violet/Blue spot interior N/WW
corner. No colour seen elsewhere. It was only a blue spot on the
Jan 13. ALPO/BAA weight=1.
Plato 1976 Jan 14 UT 20:50 Observed by J.H-Robinson (Teignmouth,
UK, 26cm Newtonian, Wratten 25 and 44a filters, x200, seeing
fair to poor). The Plato floor patches were clearer in red than
in blue light. ALPO/BAA weight=1.
Schickard 1944 Aug 31 UTC 21:00? Observed by Wilkins (Kent, England)
described in the NASA catalog as: "Saw a mist in it which was gone next
nite. interor was dotted with white spots, contrasting sharply with
dark areas. All very clear on Aug 15 at sunset". 8.5" reflector. NASA
catalog weight=4 {high). NASA catalog TLP ID No. #492. ALPO/BAA
weight=3.
On 2010 Apr 27 at UT 00:10-00:30 and 01:45-02:00 P. Grego (St
Dennis, UK, 20 and 30cm reflectors) noticed a craterlet just
to the east of Briggs and an E-W trending lineament or wrinkle
ridge that did not show on NASA LAC charts. Further checks did
not reveal it on Lunar Orbiter mosaics, but the craterlets
(and not the E-W trending ridge) were visible in LROC
topography data. The ridge is possibly a very low relief
feature that shows only under very shallow illumination
conditions. The ALPO/BAA weight=1 until we get confirmation at
repeat illumination.
Aristarchus 1967 Sep 17 UTC 02:05-02:21 Observers: Delano (Fall River,
MA, USA) and Corralitos Observatory (Organ Pass, NM, USA). The former
used a 12.5" reflector at 400x and the latter a 24" reflector. The NASA
catalog states the following: "A rimtop cratelet on SW rim appeared
almost as bright as c.p. thru a Wratten 25 filter (red) but no brighter
than a lower central wall & rim thru a Wratten 48 (blue) filter. Inner
W. slope of craterlet displayed a bright red color which became less &
less noticeable until 0212h It was no longer brighter than other parts.
At 0217 it flared again brighter red for 1m. (indep. confirm. of
Seeliger for activity in Aris. ?) Corralitos MB did not confirm. NASA
catalog weight=4. NASA catalog TLP ID No. #1045.
ALPO/BAA weight=2.
On 1975 Mar 25 at UT18:50-20:50 P.W. Foley (Kent, UK) observed
blue/grey in Aristarchus. The ALPO/BAA weight=1.
On 1983 Sep 20 at UT 05:08-06:13 Louderback (South Bend, WA, USA,
3" refractor, x150, seeing poor and chromatic aberation on the limb)
detected "purple"in the vicinity of Aristarchus crater and this was
stongest on the north and north west external rims, however there was
no "violet glare"from inside the crater. However the region of the
central peak was very bright - though he could not detect the central
peak. The brightness of the TLP was 4.5 and it should normally be 3
(nimbus area). Near the "big plain"it was 7. The chromatic aberation
seen on the crater. There was also violet on the northen wall of
Herodotus crater and the Cobra Head. Īt appeared dark blue in the blue
filter", the surrounds remained gray". Apparently on the 26th the"ring
was still dark with faint violet - nearly normal". Cameron comments
that the TLP was due to spurious colour. The Cameron 2006 catalog ID=
229 and the weight=3. The ALPO/BAA weight=2.
On 1975 Mar 25 at UT19:59-20:02 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1985 Jul 01 at 02:00-03:00 UT K. Marshall (Medellin, Columbia)
observed thatTorricelli B was very bright - verified using a C.E.D. No
colour was seen though. the Cameron 2006 catalog ID=279 and the weight=
4. The ALPO/BAA weight=3.
On 1980 Jan 01 at UT 00:10-00:21 A.C.Cook (Frimley, UK, 12" reflector,
Wratten 29 and 44A filters, Seeing II-III and transparency poor-
moderate) suspected that the floor was slightly brighter in blue light
than in red. No such effect was seen earlier at 23:54-23:57. Cameron
2006 catalog ID=81 and weight=3. ALPO/BAA weight=1.
On 1983 Aug 22 at UT 05:44-06:33 D. Louderback (South Bend, WA, USA,
3"refractor, x150) found the brightness of Aristarchus (diffuse white
patch) to be 7 to 7.5 but apparently it is normally 8-8.5, so fainter
than normal. Another brightness reading found "brightening then nearly
extinction at S. wall similar to changes seen on Eimmart before.
Watched fluctuation compared to Cobra Head, they were similar but more
pronounced at Aristarchus" especially in blue light compared to red
(although there was a little brightness in red). Timings of these
fluctuations were 7sec, 7sec, 9-10sec and 9-10sec. The latter two might
have been seeing related as the crater enlarged up at these times. The
observer felt that the Cobra Head appeared fainter than the previous
year and had faded during the second set of brightness measurements.
Cameron 2006 catalog ID=227 and weight=3. ALPO/BAA weight=2.
On 1983 Aug 22 at UT05:44-06:33 D. Louderback (South Bend, WA, USA, 3"
refractor, x150) found that Mons Piton was still brighter in red light
than in blue - the opposite was found in his July observations. The
Cameron 2006 catalog ID=227 and the weight=3. The ALPO/BAA weight=2.
Darwin 1945 Oct 19 UT 23:23 - P.Moore (UK) saw 3 brilliant
points of light on wall. 12" reflector used. NASA catalog ID #
495, NASA weight=3. ALPO/BAA weight=3.
Plato 1945 Oct 19 UT 23:24:30 Observed by Thornton (Northwich,
England) described in the NASA catalog as: "Bright flashes on
the floor near E.wall (meteor?) but others have seen flashes
there too. time given is 1123, must be P.M., local time. MBMW
gives date as Oct 19, which is wrong" Haas (more reliable
account) in his 2003 article in Strolling Astronomer Vol 45,
p28 states" 23cm x220 reflector used - "minute but brilliant
flash of light seen just inside eastern border of walled plain
Plato. Colour was said to be orange side of yellow. NASA
catalog weight=4 & NASA catalog TLP ID No. #494. ALPO/BAA
weight=3.
Bullialdus 1979 Oct 04 UT 20:24-21:25 JH-Robinson (Devon, UK,
260mm Newt. x200 Seeing Antoniadi IV-V, Transp.=haze) observed a two
bright points on the south west floor patch to be brighter in red than
in blue at 21:12. The effect was still present at 20:36 but back to
normal by 20:43-20:48. Amery (Reading, UK) found a possible brownish
tinge on the west wall, though spuroius colour was present elsewhere on
the Moon. Foley found the WSW corner darkened in blue light. Cook found
pink on south rim of Bullialdus and Pedler found Bullialdus to be a
confused mass with bright and dusky spots and patches - no colour seen.
Cameron 2006 catalog ID=72 and weight=0. ALPO/BAA weight=1.
Aristarchus-Herodotus 1964 Sep 20 UTC 04:15-04:50 - Observers: Crowe &
Cross (Whittier, CA, USA, 19" reflector x390) "Several red spots in
area between the 2 craters. No change in phenom. so stopped observing"
NASA catalog weight=5 (very good). NASA catalog ID #849.
On 1965 Sep 09 at UT 13:20 Presson observed an orange-red srip on the
floor of Aristarchus. Cameron says that this was confirmed later by
Bartlett? The Cameron 1978 catalog ID=892 and weight=2. The ALPO/BAA
weight=2.
Aristarchus 1959 Jan 23 UT 06:20 - Observer: Alter (Mt Wilson,
CA, 60" reflector x700) "Brilliant blue in interior later
turning white. Photos obtained. (MBMW has this entry twice for
diff. dates because source gave UT date as 23rd.)" NASA
catalog weight=5. NASA catalog ID = #712. ALPO/BAA weight=4.
nr.Ross D 1964 Sep 20 UTC 04:55-05:00 - Observers: Harris & Cross
(Whittler, CA, USA, 19" reflector x250) "Opaque, outgassing,
obscuration" NASA catalog weight=5 (very high). NASA catalog ID #850.
On 1979 Oct 04 at UT21:05-23:40 P.W. Foley (Kent, UK, 12" reflector,
x360, seeing=II) detected colour in Aristarchus (and also in Bullialdus
- there was a TLP alert at this time for Bullialdus) but nowehere else
on the Moon. Aristarchus had a CED brightness value of 3.8 at 21:05
(though at this time no colour) and 3.4 at 23:40 and the floor was now
slate blue/gray in colour. Other features remained constant in
brightness. The Cameron 2006 catalog ID=72 and the weight=0. The
ALPO/BAA weight=1.
Gassendi 1968 Jun 09 UT 21:35-21:45 Observer: Miles (UK, 5"
refractor x120) "Blink inside NW wall. Trees stopped obs. at
2145h. At 2155h no blink vis. (Moore has date as June 6th, 1958
=misprint? as there weren't blink sys. then. Moon at low alt
7deg)." NASA catalog weight=2. NASA catalog ID #1077. ALPO/BAA
weight=2.
Near Aristarchus 1788 Apr 19 UT 20:00? Observed by Schroter
(Lilienthal, Germany) Event described as: "Small area very
brilliant & other bright spots". No additional references
given. NASA Catalog Event #44, NASA Weight=4. ALPO/BAA
weight=1.
On 2013 Jan 25 UT 19:05-19:15 R.Braga (Milan, Italy, 115mm
refractor, x267, seeing III, transparency average) observed that
Plato in general was normal in appearance, but the east rim was
showing a remarkable golden (yellow-golden) hue. This was a
repeat illumination observation for a W.E. Fox TLP observation
from 1938 Feb 14. The observer was wondering whether they were
in some way biased after reading the original report desription
- so uncertain over this being a TLP. In view of uncertainty
ALPO/BAA weight=1.
Plato 1938 Feb 14 UT 00:25 Observed by Fox (Newark, England,
6.5" reflector, x240) "Prominent gold-brown spot on E. wall
with yellow glow without definite boundary, spreading over
floor." NASA catalog weight=3. NASA catalog ID #431. ALPO/BAA
weight=3.
Aristarchus 1976 Jan 15 UT 19:30-20:50 Observed by P.W. Foley
(Kent, UK, 12" reflector) - Aristarchus was abnormally bright
(Cameron suspects that this is a confirmation an explosion
effect seen earlier by Greenland: "On 1976 Jan 15 at 19:45Ut
Greenland (Crawley, UK, 7x50 binooculars) thought that they
saw an "explosion" on the Moon (in the general region of
Aristarchus) for a fraction of a second, followed by a bright
spot in the same position (not an astronomer). After
discussions with others, decided it was a moment of transition
to greater intensity (better seeing?). Moore thinks it was
atmospheric but says it should be on record. Cmeron's 1978
catalog ID=1425 and weight=5". For the Foley report: Cameron
1978 catalog TLP ID=1427 and weight=5. ALPO/BAA weight=1.
Aristarchus 1950 Jun 29 UT 05:20-05:41 Observed by Bartlett
(Baltimore, MD, USA, 3.5" reflector x100, S=6, T=5) "Strong
bluish glare on E..SE wall." NASA catalog weight=4. NASA
catalog ID #529.
(65E, 56N) near Endymion & Mare Humboldt 1968 Jun 10 UT 02:35 Observed
by Provenmire, Robinson et al. (Hamburg, PA, USA, 6" reflector x105,
Seeing=good, alt=20deg) "While waiting for reappearance of Antares from
a grazing occultation at 13+/-4deg P.A. saw a prolonged blue flash
lasting from minimum of 1/2 to a max. of 2.0 s. Several others along
obs. path of several miles also saw it so not a local phenom. (located
38 deg from cusp, azimuth=157 deg?)" NASA catalog weight=5 (very good).
NASA catalog ID #1078.
On 1971 Apr 09 at UT 22:30-23:05 N. Brown (Huntington, York, UK, 37cm
reflector, x252) noted that the bands in Aristarchus were noticeably
more prominent in blue light than in red. This has no entry in the 1978
Cameron catalog. It has an ALPO/BAA weight of 2.
On 1897 Jun 14 at UT 23:00 Pickering (Cambridge, Mass. USA) observed in
"Schroter's valley and the vicinity variations in vapor colum. Break in
col. toward F and eruption of crater D. 3.4 d after sunrise". The
Cameron 1978 catalog ID=389 and the weight=3. The ALPO/BAA weight=2.
Galvani B: On 2019 Sep 13 UT 23:26 K. Kilburn (Manchester, UK,
BAA - ED80 refractor, x2 Barlow, Canon 550 DSLR) took a
sequence of images from 23:25-23:27 UT. On one of the images,
taken at 23:26UT there is a blue/green spot on Galvani B.
There is a hint of a possible fade of the spot in the other
images but this is not conclussive. Te spot might just be a
cosmic ray event or a bright part of the crater rim coming
into view under brief exceptional seeing for one frame only.
We need simlar illumination, and if possible topocentric
libtation images, under different atmospheric conditions to
confirm this. It would be great if the images were in colour
too. The ALPO/BAA weight=1.
Plato 1980 Oct 23 UT 21:00(+/- approx 1 hour) Observed by
Chapman (Kingston Upon-Thames, UK, 11.5cm refractor, seeing III,
transparency poor. No spurious colour seen. During one (or
both?) of these sessions, a Moon Blink was used and produced no
results on all craters tested on, apart from Plato where the SW
corner of the floor was brighter in red, and also visible in
white light, but viewing was poor and at the limit for his
telescope. ALPO/BAA weight=1.
Cauchy 1969 Jul 29 UT 06:00-06:22 Observed by Claudio
Pamplona and Jackson Barbosa (Fortaleza, Brazil, 2"
refractor) "very bright and clear(?) pulsating 3,3s,3s with
crater illum. then 3s area illum. red & no filter area
pulsated for 22m. Confirmed by Jackson (Apollo 11 watch)".
NASA catalog weight=3. NASA catalog ID #1193. ALPO/BAA
weight=3.
On 1993 Apr 06 at UT23:00 M.C. Cook (Frimley, UK) observed a TLP in
Torricelli B - "Noted that it was > yellow but only visible in mauve +
yellow combined". The Cameron 2006 catalog ID=460 and the weight=4. The
ALPO/BAA weight=2.
Helicon A 1977 Feb 03 UT 2009-23:52 Foley and Moore observed the
crater to be changing in brightness. Jewitt and Elms failed to
detect this. ALPO/BAA weight=1.
Aristarchus 1976 Jan 16 UT 22:00-23:15 Observed by P.W. Foley
(Wilmington, Kent, UK, seeing II) - Aristarchus was tremendously
bright. No colour seen. ALPO/BAA weight=1.
Aristarchus 1973 Feb 17 UTC 22:15-22:45 Observed by Rose, Hunt,
Robinson, Coleman (UK) described in the NASA catalog as: "Rose tho't
W.rampart was diffuse over 1/3 its length. Alerted Hunt who tho't there
was a dark patch (in poor seeing) but the diffuse effect was neg.
Robinson tho't things norm. also Coleman(Seeing=poor). Moore thinks not
real phenom. Rose used a 14", hunt a 6" and Robinson (and? Coleman) a
10" reflector. NASA catalog weight=1 (low). NASA catalog TLP
ID No. 1363
Gauss 1967 Sep 19 UT 02:33 Observer: Chilton (Hamilton, ON,
Canada, 12.5" Gregorian, 200x and a 4" refractor). In a polaroid
filter the west wall was missing. Effect seen in large scope and
also in 4-in finder. His conclusion was that W. wall reflected
polarized light. Cameron 1978 catalog weight=3 (good)
and TLP ID #1047. ALPO/BAA weight=4.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 3 minutes
Aristarchus brightened. Cameron 2006 catalog ID=180 and weight=0.
ALPO/BAA weight=1.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 5 minutes
Copernicus flashes. Cameron 2006 catalog ID=180 and weight=0. ALPO/BAA
weight=1.
Herodotus 1968 Aug 09 UTC 02:05-03:45 Observed by Lowe (Springfield,
VA, USA) described in the NASA catalog as: "With naked eye saw a bright
spot in NW part of Moon; tho't it was Aristarchus, but 7x binoculars
showed it to be Herod. which was brighter than Aris! still apparent at
0245h, but was normal at 0345h. (at FM, must have been an extraordinary
event)". Naked eye and 7x binoculars used. The NASA catalog assigns
this a high weight of 4. The NASA catalog TLP ID No. is #1087.
Reference for observation is personal communication from the observer
to Winified Sawtell Cameron. ALPO/BAA weight=3.
1974 Mar 08 UT 22:55 R. Livesey (Scotland, UK) noted that
this crater was reddish, but suspected that it was an optical
effect? ALPO/BAA weight=1.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato, though the centre of the activity was offset on one side. This
is a BAA report. The ALPO/BAA weight=1.
Hyginus Nova 1877 May 27 UT 20:37 Observed by Klein (Cologne,
Germany) NASA Catalog Event #190, NASA Weight=1 (Very Low). Event
described as: "New crater 3mi.diam Didn't see anything there 12 yrs.
previously in studies. (Schmidt showed it sometimes dark, sometimes
light, sometimes not at all. Neison studied region minutely 20x from
July 1870-Aug,1875 & did not record it. Gauth says it's not new
(changes there?) "References: Neison, E. The Moon, Longmans, Green and
Co., London, 1876; Astron. Reg. 17, 204, 1877?
Lichtenberg 1955 May 07/08 UT 23:00-01:00 Observer: Jean
Nicolini (Brazil). Ref: Azevedo (1962) NASA catalog weight=1,
NASA catalog ID 590. ALPO/BAA weight=1.
"Proclus D. (Bartlett's designation) appeared as a dark spot,
conformable to lts appear. at col. 111.15 deg in '55. Proc. A
(Bartlett's designation) completely invisible the ordinarily easy to
see. Conspic. a' col.103.78deg in 55' & st 110.1 deg in '55, but also
invis. at col. 30.78deg in '56". Cameron 1978 catalog ID 665 and
weight=4. Observer based in Baltimore, MD, USA and used a 5" reflectore
x180 and S=4 and T=5. ALPO/BAA weight=2.
Aristarchus 1972 Mar 30 UTC 23:03-23:05 Observed by Kufer (11.5E,
48.25N, 110mm reflector) "A sudden brightening, but observations
limited by cloud" Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol
30, pp53-61.
Observed by Bartlett (Baltimore, MD, USA) described in NASA
catalog as: "Strong viol. gl. on EWBS, whole length of E. wall.
Dark viol. on nimbus pale viol. on plateau m. Area was hazy --
couldn't focus it. Brilliantly clear nite.3.5(?) reflector x180
used. NASA catalog wight=4, NASA catalog ID #665. ALPO/BAA
weight=2.
On 2012 Jan 09 UT 21:01-21:08 Hahn crater was imaged by N. Hazel
(Beverley, Yorkshire, UK, Nikon D7000 with 70-300 zoom at max,
with 2x teleconverter, at f9, 1/320 sec, ISO 400 tripod
mounted, mirror up), A series of images were taken. The 21:06 one
showed a grey column cutting across the central floor of the
crater from the west and then bisecting the eastern rim. All
detail inside is completely invisble. Some (but not all) of the
other images showed a more blurred view of this feature. It's
possible that this was a seeing ripple effect, or just the
natural appearance of shadings on the Moon at this time, however
for now this will be given an ALPO/BAA weight of 1.
Mare Crisium 1965 Oct 11 UTC 05:15 Observed by McCord (Mt Wilson, CA,
100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K)
abnormally high compared with 23 other areas (including
Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
Aristarchus 1970 Apr 22 UT 07:00
Observed by Thomas.
In 1958 aug 20 at UT 20:00? an unknown observer noticed that
Promontorium Agarum appeared filled with fog or mist. The Cameron 1978
catalog ID=510 and the weight=3. The ALPO/BAA weight=2.
Plato 1869 Sep 21-22? UTC 00:00? Observed by Gledhill (Halifax, UK, 9"
refractor) "Group I craters-notable illum. accomp. by a single light on
a distinct spot. (similar to Aug. obs. & if same phase as Ap 1870, date
=22nd.). NASA catalog weight=2 (poor). NASA catalog ID #164.
Mare Crisium 1965 Oct 11 UTC 07:32 Observed by McCord (Mt Wilson,
CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),,
c/d (K) abnormally high compared with 23 other areas (including
Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog
ID 902.
Aristarchus 1966 Jul 04 UTC 06:15-06:35 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x142) & by Corralitos Observatory
(Organ Pass, NM, USA, 24" reflector). "S.region of floor was granulated
& dull est. at 6 & pale yellow-brown tint. Rest of crater est. 8 bright
white. Not confirmed by Corralitos MB" S=5, T=4. NASA catalog weight=4
(high). NASA catalog ID #955. ALPO/BAA weight=3.
On 1970 Aug 12 at UT21:00? an unknown observer commented about Plato:
"Light #22, remarkable increase in brightness. #32 subsided & #14 shone
out then faded & #16 brightened. (Fort says that till Apr. 1871 selenog
recorded 1600 obs. of fluctuations of lights in Plato & had drawn 37
graphs of indiv. lights. These were deposited in the library of the
Royal Astronomical Society by Birt)." The Cameron 1978 catalog ID=169
and the weight=3. The ALPO/BAA weight=2.
In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60"
reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in
magnitude in 2.5 hours - a photometric measurement. The average
magnitude for this age is 4.03, so therefore the crater had brightened
by two times above normal. The Cameron 1978 catalogID=769 and the
weight=5. The ALPO/BAA weight=3.