1965 Aug 21 UTC 06:55-08:05 Observed by Gilheany, Johnson, Segerstrom
(Port Tobacoo, MD, USA) described in the NASA catalog as: "Color patch
detected by Trident; MB device. Color was pink. Astronauts on Gemini 5
saw terrestrial auroras from space on this date". 16" reflector used.
NASA catalog weight=5 (very high). NASA catalog ID No.#890.
Aristarchus 1983 Aug 03 UT 0305-0400 Observed by R,Moseley
(Coventry, UK, 6" reflector, seeing II, Transparency very good).
At the start of the observation, the NE wall and immediate
exterior was the brightest area visible (this is normal) and
seemed tinged with a faint blue/violet. At 03:45 the impression
of colour was fading in the brightening sky, but by 03:55 the
colour was back again with a faint violet/purple surrounding the
whole formation from E clockwise to N. The observer found it
difficult to decide whether it was really a colour on the Moon,
or an optical illusion. ALPO/BAA weight=1.
On 1788 May 01 at UT 01:00? Schroter (Lilienthal, Germany, reflector
used) observed a small depression near Aristarchus, 1, that had a
strong glimmer. The Cameron 1978 catalog weight=4 and ID=45. The
ALPO/BAA weight=2.
On 1977 Dec 07 at 04:24UT (assuming that this is not local time) V.M.
Chernov (Soviet Union) observed that the north cusp was more than 180
deg and a bright dot seen. Ashen light visible. Moon 3.5 days before
New Moon. On 6th Dec at 04:20UT the cusp was seen to be normal. The
ALPO/BAA weight=1.
On 1977 Dec 07 at 04:24UT (assuming that this is not local time) V.M.
Chernov (Soviet Union) observed that the south cusp was more than 180
deg. Ashen light visible. Moon 3.5 days before New Moon. On 6th Dec at
04:20UT the cusp was seen to be normal. The ALPO/BAA weight=1.
On 1977 Dec 08 at 04:04UT V.M. Chernov (Soviet Union) observed that the
south cusp was prolongated into Ashen light. This is the only occasion
where he had seen this effect on two successive nights. However a
similar effect was seen by F. Gruihuisen on 1840 Mar 5th and 6th. The
ALPO/BAA weight=1.
Southern cusp obseved by H.Hill (UK) on 1992 Apr 04 at solar
selenographic colongitude=294.Observer noted that the southern
cusp was extended by 350" - the effect appeared "atmospheric".
Note that this is almost certianly not a TLP but is worth
checking out if the libration and solar colongitude is similar,
just to verify that this is what the Moon normally looks like.
ALPO/BAA weight=1.
On 1970 May 08 at UT 23:00-23:30 Celis (Quilpue, Chile, 3" refractor,
x60, atmosphere turbulent) observed in the Aristarchus region a clear
line(?) and several star-like points. Cameron suspects atmospheric
effects due to low altitude and turbulence? The Cameron 1978 catalog
ID=1259 and weight=1. The ALPO/BAA weight=1.
On 1989 Apr 09 at 02:13 was seen to be not very bright in binoculars,
despite visibility of Earthshine in general as being exceptional.
Darling confirmed this at 02:31UT, though it was quite bright in a
17" reflector,but Herodotus could barely be seen. Weier claimed to be
able to see Aristarchus with the naked eye. At 02:08 the brightness was
found to be 5.0 for several measurments. The observing team ware from
the Maddison Asgtronomical Society, WI, USA. The Cameron 2006 catalog
ID=359b and he weight=3. The ALPO/BAA weight=2.
On 1990 Apr 28 at UT 00:00-00:30 F. Graham (Marshall TWP, OH, USA, 6"
reflector) during a failed attempt to observe the occultation of X6493
that was thwarted by clouds, noticed that Gassendi was "Gass,>>,>Aris
or anything else". The crater had a "milky lustre". It is possible that
another occultation observing group may have a video of the Earthshine
at this time. Darling (Sun prairem WI, USA, 20x50 binoculars) could not
see Earthsine, though the sky was bright at the time. The Cameron 2006
catalog ID=402 and the weight=0. The ALPO/BAA weight=1.
On 1990 Apr 28 at UT 01:19-01:25 F. Graham (Marshall TWP, OH, USA, 6"
reflector) during a failed attempt to observe the occultation of X6493
that was thwarted by clouds, noticed that Gassendi was "Gass,>>,>Aris
or anything else". The crater had a "milky lustre". It is possible that
another occultation observing group may have a video of the Earthshine
at this time. Darling (Sun prairem WI, USA, 20x50 binoculars) could not
see Earthsine, though the sky was bright at the time. The Cameron 2006
catalog ID=402 and the weight=0. The ALPO/BAA weight=1.
On 1970 Jul 06 at UT 22:45-23:45 Celis (Paso Hondo, Chile, 3"
refractor, x60, x100, x135, seeing=very good) saw Aristarchus as an
outstanding bright patch (10 deg bright) electric blue colour, every 10
sec groups of 3 or 4 separate sparkles for 10sec then a period of calm
for 30sec-1min. At 130x was almost constant form. Sometimes the form
would be radial like an open band with extended fingers. This was
observed in the dark part of the Moon and Cameron suspects atmopsheric
effects. The Cameron 1978 catalog ID=1264 and weight=2. The
ALPO/BAA weight=2.
On 1980 Nov 10 UT 17:55-18:15 J-H Robinson (Teighmouth, Devon, UK)
observed the floor patches in Plato to be easy in red, but not so well
seen in blue. This is a BAA Lunar Section report. ALPO/BAA weight=1.
Note the month or day must be wrong!
On 1980 Nov 10 at UT18:05 J-H Robinson (Teighmouth, Devon, UK, Seeing
III, Transparency poor, Filters Wratten 25 (red) and 44A(blue)) found
the area to be bright in red and dull in blue - but suspected that this
might have been a permanent colour blink e.g. natural colour. This does
not have an entry in the 2006 Cameron catalog. ALPO/BAA weight=1.
Boussingalt 1860 Apr 24 UT 20:00? Observed by Schmidt (Athens, Greece,
7" refractor) "Noted weak glows on the crater he tho't prob. due to
wall reflections on floor" NASA catalog weight=0 (very unlikely to be a
TLP). NASA catalog ID #132. ALPO/BAA weight=1.
Bright spot (in dark part of Moon - confirmation of Arkhipov?). Cameron
1978 catalog weight=5 and Cameron 1978 catalog serial No. 418,
On 1980 Nov 11 at UT17:35-18:32 G. Blair (Weir, Scotland, UK) at
17:35UT immediately noted that the Earthsine was extremeley bright. All
large detail easily seen on unilluminated disk. 17:38UT a definite pale
reddish brown tinge enveloped the Aristarchus area. 17:39 seemed to be
getting larger and more intense west (IAU) side. Attempted to contact
other observers. 17:40UT Aristarchus still had a bright central peak.
17:50UT fading a little from the west (IAU). 18:00UT slight revival in
brightness. 18:15UT effect still visible when Aristarchus set behind a
high western horizon. The two sketches supplied show the illuminated
region around the crater with extension to the west (IAU). P. Foley
(Kent) found thatAristarchus was bright enough in Earthshine to be seen
with the naked eye. Telescope in operation at 18:00UT and the entire
Aristarchus region was bathed in violet/rose colour with what appeared
to be a strong ray extending to the west (IAU). Detail could be clearly
seen inside Aristarchus crater such as the central zone, west and north
wall and rim in relief from point southeat to northwest. CED measure
0.8 (white), 0.9 (blue), 0.2 (red). No other reading in Earthshine gave
a measure in red. Observation ceased by 18:32UT as the Moon was very
low. ALPO/BAA weight=3.
On 1970 Jul 07 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3"
refractor, x60, x100, x135, seeing=good) observed the following in
Aristarchus: "Similar conditions as last night (#1264) but diminished
in brightness to 40% (to 6deg bright. Real phenom. in the dimming?)".
The Cameron 1978 catalog ID=1265 and weight=3. The ALPO/BAA weight=3.
In 1948 Aug 09 at UT 02:40 Woodward (Toronto, Canada, sky very
clear) observed, using a telescope, a bright, bluish-white to
greyish-yellow, 3 sec duration flash in Earthshine. The flash
was between magnitude 0 to 1 if one were looking for a similar
magnitude star in the sky without a telescope. There was
possibly a very slight motion of the flash in a southerly
direction. Also there were two terminal bursts. Cameron suggsts
that this might have been a meteor? Ref: Moore, P.A. Guide to
the Moon (1953), p117. The Cameron 1978 catalog ID=508 and
weight=0. The ALPO/BAA weight=1.
Macrobius 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore,
Danmark, 2.5" refractor x58 & x100, seeing=good) "Macrob. was a white
ring without outline or shadow. (shad. should have been seen--sun only
up 5deg alt. Something was raising albedo from 0 to surround." NASA
catalog weight=3 (average). NASA catalog ID #1328.
Proclus 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore,
Danmark, 2.5" refractor x58 & x100, seeing=good) "Proclus not as clear
as usual" NASA catalog weight=3 (average). NASA catalog ID #1328.
On 1972 Apr 17 at UT 20:10-20:45 Hvidore (Denmark, 2.5" refractor, x58,
x100, seeing=good) noted a brightening of the dark limb between
Hercynian mountains and Cleostratus crater. Thought that it was due to
atmospheric disturbance. Cameron says similar to other reports e.g. No.
1156. The Cameron 1978 catalog ID=1330 and weight=1. The ALPO/BAA
weight=1.
On 1970 Jul 08 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3"
refractor, x60, x100, x135, seeing=excellent) observed the following at
Aristarchus: "Conditions again similar (to #1264). Brighter tonite(8
deg) than last nite. but not as bright as on the 6th. Pin pts. of light
very accentuated. The radial open hand extended fingers form not so
frequently, perhaps because of the larger crescent illum. now.".
The Cameron 1978 catalog ID=1266 and weight=3. The ALPO/BAA weight=2.
Cyrillus G 1983 Aug 13 UT 20:17-20:59 L. Paynter (Radcliffe,
UK, 22cm reflector, seeing III or better, transparency good).
Cyrillus G was relatively bright and surrounded by a shaded
area. On increasing the magnification from x65 to x130 he became
aware of a diffused "carise" colouration, in and around the
crater. The colouration was similar though to other spurious
colour on the Moon, but unlike other areas affected by spurious
colour, was more diffuse and spread out and not so concentrated.
In view of some uncertainty by the observer, ALPO/BAA weight=1.
In 1855 Jun 20 at UT 21:00 T.W. Webb (England) observed a trace of
twilight (Cameron says also seen by Gruithuisen, Henry and others at
times). Webb gives a low weight to his own observation, saying "for
want of better optical means". The Cameron 1978 catalog ID=130 and
weight=1. The ALPO/BAA weight=1.
On 2012 Mar 28 at UT 20:45-20:50 Two unknown Italian
observers, reported on an on-line formum that they had
independently seen a distinct glow with a comma/drop shape.
One of them moved the Moon and the glow moved with the Moon.
It is uncertain how experienced the observers where. A chart
was provided which shows the lcoation of the glow in the
western side of Mare Imbrium. It is just possible that this
was Aristarchus in Earthshine, though that is very slightly
further west and south than the observers reported. ALPO/BAA
weight=1.
On 2012 Mar 28 P. Grego (Cornwall, UK, seeing II, 100mm
refractor, x132) observed a patch of light just inside the NW
rim of Menelaus on the shadowed wall or floor. Computer
visulaiztions of the illumination conditions using a digital
elevation model failed to produce this effect. ALPO/BAA weight=3.
Cepheus A 2000 Oct 04 UTC 08:15-08:50 Observer: Maurice Collins
(New Zealand, 90cm ETX) - observer noted that crater was
extremely bright - wasn't sure if this was normal and at the
time rated it as the brightest (contrasty?) crater that he had
ever seen on the Moon. Many years later he suspected that he may
have mis-identified the crater. This still leaves us with thr
problem as to why a crater should be so bright in this region,
and if so, which one? ALPO/BAA weight=1.
Pitiscus 1981 Sep 05 UT ??:?? but assumed to be AM? which would make
it 00:00-03:00UTC. Observed by Slayton (Fort Lauderdale, Florida, USA,
8" reflector, ASA 64EK7 f/170, Kodak Kodachrome) photographed a bright
glow in the crater that appeared to move. Observer also reported seeing
it visually noting that it looked gray with a tinge of red. For further
information see p266 of Sky & Telescope (1991, March). Note that
Cameron gives the date and UT at 1981 Sep 06 UT 01:00-01:30, or one day
later. I will use this date and time from now on. The Cameron 2006
catalog ID=152 and weight=5. The ALPO/BAA weight=3.
In 1982 Sep 24 at 22:45-23:40 K. Marshall (Medellin, Columbia) saw in
Theophilus an obscuration on the south west wall close to Cyrillus and
furthermore it had a red / mauve colouration (seen best in a 12mm Ortho
eyepiece). Through a Wratten 15 yellow filter the region was quite
bright. At23:40UT the obscuration faded. There was plenty of detail in
the region between Theophilus and Cyrils. The Cameron 2006 catalog ID=
184 and the weight=3. The ALPO/BAA weight=3.
On 1915 Apr 21 at UT 1800? Houdard (France) noticed a special
occurrence south of Posidonius which he took as evidence of water
vapor. The Cameron 1978 catalog ID=351 and weight=3. The ALPO/BAA
weight=2.
A.S.Williams of West Brighton, UK, using a 2.75" Acromatic refractor
(x75, definition good, but it was too windy to use the 5.25") noticed
that the mare was a mass of light streaks and spots. This was not
considered unusual, but these features were unusually plain, distinct
and brught, especially the streaks. The observer could not recall
seeing the streaks so bright and clear with this instrument before, and
indeed hardly ever with the larger 5.25" telescope. The observer
continued to observe Mare Crisium on many nights for several months and
comments that such an unusual exhibition was later seen perhaps once
every 2-3 lunations. They are uncertain how much this effect depends
upon the state of the Earth's atmosphere. This TLP does not make it
into the Cameron 1978 catalog and so may not be a TLP - however it has
been included, just in case, and to try to understand what was actually
seen. ALPO/BAA weight=1.
Censorinus 1984 Jul 05 UT 21:05-21:25 Observed by Cook (24" reflector
with line scan photodiode array at Mill Hill observatory, London) "Two
line scan photodiode array images were taken which used the motion of
the Moon to build up an image. The first image at 21:25UT did not
include all of Censorinus, but the part that it did include was not
very bright. The 21:25UT image did include all of Censorinus and the
crater was bright, including the part that was just visible in the
previous image. Possibly the seeing was worse at 21:05? and this could
explain the brightness descrepency, but it is worth checking again by
taking images at the same illumination conditions" BAA Lunar Section
report. At 21:17 M. Cook (Frimley, UK) found Proclus to be brighter
than Censorinus (more so than the previous night) and obtained variable
readings for Censorinus. Cameron 2006 catalog ID=247 and weight=3.
ALPO/BAA weight=2.
Proclus 1970 Jul 11 UT 20:35-20:45 Observed by Dean, Jamieson,
Sparks (Ruislip, ------, England, 6" relector x156) "Dean saw
something in Proclus, alerted Jamieson who saw nothing unusual
at 2043h, but tho't Secchi was quite bright. At 2035 Sparks saw
Proc. fluctuate. Red & blue filters showed some reduction in
brightness. E. edge showed darkening, but not as dark as in
shadows. 10 min later, returned to normal. (Sparks confirmed
Dean)." NASA catalog weight=5. NASA catalog ID #1267. ALPO/BAA
weight=3.
1970 Jul 11 UT 20:35-20:45 During a TLP alert for Proclus, Jamieson
saw nothing unusual, but found instead that Secchi was quite bright.
NASA catalog weight=5 (very good). NASA catalog ID #1267. ALPO/BAA
weight=1.
On 1983 Sep 15 at UT 05:20-05:24 Louderback (South Bend, WA, USA,
8" reflector and 3" refractor, seeing poor) found that the west wall of
Eimmart was unusually bright (8.3) and apparently it was almost as
bright as the "WEBS(of Aris?) at its brightest". The crater was
apparently normal again on Sep 20 and 26. The Cameron 2006 catalog ID=
228 and the weight=3. The ALPO/BAA weight=2.
On 1990 May 03 at UT 02:03 D. Darling (Sun Praire, WI, USA, seeing
steady) observed a point of light inside Alphonsus just to the north
of the central peak, along the "center ridge". It was seen again, half
way between the central peak and the noth west rim - along the ridge.
All other features were normal. The Cameron 2006 catalog ID=403 and the
weight=3. The ALPO/BAA weight=3.
Purbach 1970 Apr 14 UT 12:00-14:00 Observed by Osawa (Awajt-Shima,
Japan, 8" reflector, x288) "Photos in blue and orange taken. Ill-
defined obscur. in blue photo in S. part of crater compared with
orange. (neg. is so faint it is doubtful. Apollo 13 watch. Similar to
Alter's findings in Alphonsus)." NASA catalog weight=2 (low). NASA
catalog ID #1250.
SW of Pico 1844 Apr 25 UT 20:00? Observed by Schmidt (Athens,
Greece, ? refractor) "A bluish glimmering patch of light not
quite within the dark side" NASA catalog weight=4. NASA
catalog ID #123. ALPO/BAA weight=3.
On 1972 Apr 21 at UT19:01 Mattingly (Apollo 16 commander, in orbit
around the Moon, using his naked eyes) saw a bright flash from below
his horizon on the lunar farside (approximate longitude=180 deg). he
was dark adapted at the time. However no sesimic event was recorded and
so Cameron suspects that this was not a meteor impact but a cosmic ray
striking his eye. The Cameron 1978 catalog ID=1331 and weight=3. The
ALPO/BAA weight=3.
Alphonsus 1967 Aug 13 UT 18:40-18:55 Observed by Horowitz (Haifa,
Israel, 8" reflector?) "Glow or hazy patch seen while using filters.
Brighter than background. Not seen after 2055 or next nite" NASA
catalog weight=3 (average). NASA catalog ID #1041.
Peirce A (Swift=IAU name) 1937 Mar? 23? UTC 22:00 Observed by Wilkins
(England, UK, 12.5" reflector) "Obscuration on floor if crater. Crater
invis. (similar to #394, 396)." NASA catalog weight=4 (high). NASA
catalog ID #412. Note this is almost certainly supposed
to be 1934 Dec 23!
SE of Ross D 1964 Aug 16 UT 04:18-05:20 Observed by Harris and
Cross (Whittler, CA, USA, 19" reflector?) "Bright area.
Condensations varying with time" NASA catalog weight=3. NASA
catalog ID #840. ALPO/BAA weight=3
On 1887 Nov 23 at 16:15-17:00 UT Von Speissen & others of Berlin,
Germany, using a 3.5" refractor (x180), saw a "Triangular patch of
light (time in Middlehurst catalog wrong? Moonrise was at > 18:30h. If
year =1887, age=8.8 days & time OK. must be same observation as ID=256
in Cameron 1978 catalog - note similarity of names and also the
reference date). Cameron 1978 catalog ID=258 and weight=1.
Proclus 1984 Jul 06 UT 20:29-20:43 light green spot observed by Madej
(England) in the central region. No colour seen elsewhere. At 20:10
Foley (Kent, UK, 12" reflector) had seen a small extending of darkening
in the south east floor (not present 2 hours before) and a lot of fine
detail - though everything was normal again by 22:50UT. At 22:15 Amery
(Reading, UK) found a large dark spot on the south east floor. Other
observers: J and A.cook (Frimley, England) could not confirm but their
seeing was IV and tranparency was poor" Mobberley found no colour and
also no detail on the floor. BAA Lunar Section Report. Cameron 2006
catalog ID=248 and weight=3. ALPO/BAA weight=3.
A track of reddish light, like a beam, was seen
crossing the shadowed floor of Plato.This TLP has an ID
No. of 17 in Cameron's 1978 catalog and a weight
of 3. It has an ALPO/BAA weight of 2.
Plato 1882 Mar 27 UTC 20:10-21:00 Observer: A.S. Williams (Brighton,
UK, 5.5" saw the shadow filled floor of Plato at Sunrise with a
"Glowing and curious milky kind of light". About 1 hour after sunrise
at Plato, there was no trace of this effect. The TLP filled the whole
floor except at a quarter of the diameter from the east wall which was
actually quite black. The observer saw a curious phosphorescent glimmer
at sunset (April11th?). Cameron comments that Birt, Nelson and Waugh
saw obsecuring mist or fog in Plato on many occasions. Cameron 1978
catalog ID=229 and weight=3. ALPO/BAA weight=3.
On 1979 Dec 27 at UT 05:32 D. Louderback (South Bend, WA, USA, 6"
reflector x240, seeing=3-6/10 and T=4) noticed "2 small high-sun areas
nr. Eimmart - brightening around Mare Crisium, except for interior of
Proclus - in blue light. They were brighter than 2 spots on Cap.
Agarum rated 8.5 & Proc. 9. Not as bright next night. Probably a real
blue light brightening". Cameron 2006 catalog ID=79, location on Moon:
(70E, 23N) and weight=4.
Alpetragius 1889 Sep 4 UTC 02:30-03:00 Observed by E.E. Barnard (Lick
Observatory, CA, USA, 36" refractor x150, x700) "Shadow of CP diffused
& pale. Entire inside of crater seemed filled with haze or smoke. Shad.
of E.wall was black & sharp. CP & floor seen thru haze. No other
craters showed this appear. (date&time rep't=Sep3, 1830L.T)." N.B. Sun
above the horizon at 02:30 - sun sets at Lick at 02:37! NASA catalog
weight=4 (good). NASA catalog ID #264. ALPO/BAA weight=3.
Plato 1952 Apr 04 UT 02:45 Observer: T.A.Cragg (Mt Wilson, CA,
USA, 31cm reflector, x420, seeing fairly good, transparency
fair) - Obscur. of floor (seen a few hours after Wilkins & Moore
obs. confirm.?) " - indeed Haas in Stolling Astronomer 2002 Vol
45, p29 states that Cragg was amazed to see Plato's floor with
absolutely nothing on it! He was able to draw details elsewhere
in other features. NASA catalog weight=5. NASA TLP ID No. #551.
ALPO/BAA weight=2.
On 1972 Apr 22 at UT 17:30-18:15 Iwanoff (60mm refractor, 1000mm focal
length,transparency 3 out of 5 and seeing 3 out of 5, located at 53deg
5' N and 8deg 45'E) At Censorinus a diffuse bright area, greater than
the crater itself, yellow to white in colour. Published in Hilbrecht
and Kuveler, Moon and Planets, 30 (1984) p53-61. ALPO/BAA weight=1.
Morales of France?, observed "an illumination" in Kepler on 1884 Feb 05
at UT20:00?. The Cameron 1978 catalog ID is 241 and the weight=1. The
ALPO/BAA weight=1.
On 1974 Mar 02 at UT 23:00 Fitton (Lancashire, UK, 8.5" reflector,
x200, seeing = excellent and transparency = excellent) observed "A fine
deep red line seen at 1st contact with B-ring of Saturn. Nothing
unusual at A-ring contact. Persisted during occult. of B-ring. It
divided into 2 components & space between B-ring & globe cutting ring
into 2 disjointed ends persisted till dark limb passed onto globe of
Saturn, then a short red line corresponding exactly to chord of planet
disk defined by lunar limb. It increased in length as occult.
progressed. It suddenly vanished after 3/4 of globe had been occulted.
No afterglow at spot on limb, no irreg. at limb could be seen. Obs.
eliminates Saturn, telescope, & atmosp. as possible cause. Suggests
refraction from tenuous atm. of destructive interference of reflected
light from very small angle at limb, or diffraction of Saturn light
grazing limb". The Cameron 1978 catalog ID=1389 and weight=1. The
ALPO/BAA weight=1.
Linne 1867 Jan 14 UT 20:00 Observed by Knott (England?) "White covering
had seemingly disappeared, was a dark spot. Definition (seeing?) was
poor." NASA catalog weight=1 very low. NASA catalog ID #148.
On 1972 Apr 22 at UT 18:58-00:28 Hopp (75mm refractor, 1200mm focal
length,transparency 4 out of 5 and seeing 4 out of 5, located at 52deg
30' N and 13deg 15'E) Censorinus brighter than normal relative to
Proclus. Published in Hilbrecht and Kuveler, Moon and Planets, 30
(1984) p53-61. ALPO/BAA weight=1.
On 1960 Feb 06 at UT14:30 Morozov (Moscow, Russia) saw with the naked
eye a bright point inmovable but with brightness variations in dark
part of Moon, 3days past first quarter, 2days before SR! (says
Cameron). Cameron 1978 catalog ID=728 and weight=3.
Clavius 1915 Apr 23 UTC 20:00 Observed by Cook (England?) "Narrow
straight beam of light from crater A to B" NASA catalog weight=1 (very
poor). NASA catalog ID #352. ALPO/BAA weight=1.
On 2009 May 03/10 UT23:20-00:11 P. Abel (Leicester, UK, 20cm reflector,
x312, seeing III-IV) observed that the north east wall was slightly
brighter than would have been expected, slightly blurred (not seeing
related blurring) and had a strong orange-brown colour. No spurious
colour seen elsewhere. A change in eyepieces showed the same effect. No
luck in alerting other observers. A drawing was made at 23:20UT and
finished at 00:12UT. At 23:12UT part of the inner NW floor had a dull
brown colour, whereas before it was grey.By 00:11UT the colour effect
was fading and by 00:18 seeing condirions were too bad to continue. M.
Cook (Mundesley, UK, 9cm Questar telescope, x80, x130, seeing III,
transparency moderate to good) had observed Tycho earlier in the
evening at 22:15UT, but had seen no signs of colour. W. Leatherbarrow
(Sheffield, UK, 8cm scope, high cloud interuptions and bad seeing) had
taken monochrome images at UT 20:07 and 20:10, but these showed nothing
unusual, and he checked the crater visually at 00:00-00:30, but
detected no colour, although the Moon's low altitude contibuted to poor
seeing conditions and some spurious colour was seen. CCD images from M.
Collins (Palmerston North, New Zealand) taken at 00:46UT showed
nocolour apart from spurious colour on contrasty edges, in no way
reflecting what was seen early by P. Abel. The ALPO/BAA weight=2.
Observer made a drawing over a period of 30 minutes. Upon
examining drawing, and comparing with photos made under
similar illumination was struck by the abnormality of a
a small white blob in the north east corner of the shadowed
floor. There should be no raised topography between the wall
and the central peaks that could give rise to this. The making
of the sketch overlapped with an earlier drawing made by Rony
de Laet (Belgium) which did not show this blob. Subsequent attempts
to find sketches/images at very similar illumination angles have
failed to show the blob in the north east corner of the chadowed
floor. ALPO/BAA weight=3.
On 1975Mar22 at UT 21:17-21:23 Findlay and Ford (Mills Observatory,
Dundee, UK, 25cm refractor, Wratten 25 and 44a filters used) A white
spot was observed on the rim of Bulialdus that was perhaps slightly
brighter in red than in white light. The observers however decided that
they did not regard this as a TLP. This is a BAA Lunar Section
Observation. ALPO/BAA weight=1.
On 1997 Dec 09 at UT 18:42-19:02 P. Salimbeni(Cugliate Fabiasco,
Italy, 20cm reflector) observed colour on the northern edge of the
crater - 23A filter used. This is a UAI reported observation and has
come from this organizations web ste. The ALPO/BAA weight=3.
On 1975 Mar 22 at UT22:10-22:25 T.Flynn (Edinburgh, UK, 30cm
Newtownian, x75) observed 3 large areas on the floor of Plato to be
delicately darker in the blue filter. There were of different darkness.
He did not regard these as TLP, but permanent blinks. This is a BAA
report. The ALPO/BAA weight=1.
On 1991 May 24 at UT 00:05-00:08 UT 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.
On 1984 Jul 08 at UT 20:10-22:05 P. Moore (Selsey, UK, seeing IV-V)
suspected that the floor of Proclus was slightly darker than normal.
The Cameron 2006 catalog ID=249 and the weight=1. The ALPO/BAA
weight=1.
On 1882 Jan 29 at UT 17:00-17:30 an unknown observer noted an unusual
shadow in Eudoxus crater. The Cameron 1978 catalog ID=227 and the
weight=2. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.
Plato 1969 May 26 UT 20:30-21:05 Observed by Farrant
(Cambridge, England, 8" reflector, x160, S=G) "Had misty
portion of SW(ast. ?) floor from 2030-2105h at which time it
was gone. Clearly seen, had ill-defined boundaries & was an
easy obj. to see. Alt.=33 deg. (Apollo 10 watch)." NASA
catalog weight=3. NASA catalog ID No. 1148. ALPO/BAA weight=1.
On 1975 Mar 23 at UT 20:40 P.W. Foley (Kent, UK) found a brownish
colour on the north west wall. This is a BAA Lunar Section report. The
ALPO/BAA weight=2.
Bullialdus 1979 Oct 31 UT 20:20-20:30 G.W. Amery (Reading, UK)
observed a plateau area to be dark and distinct in blue light
(Wratten 44a), but only just visibly in red (Wratten 25) and
yellow light. Observer wonders if this is natural surface
colour? ALPO/BAA weight=1.
SE limb of Moon 2003 Aug 08 UTC 20:50 Observer Brook (Plymouth, UK)
x70 60mm OG on a very hot evening, when I saw a fountain-like
appearance suddenly "squirt" from the SE limb. Seeing not particularly
good, but not so poor as to account for what was seen. Duration of
phenomenom perhaps a fraction of a second, hight of pehaps a few miles.
Thought I saw another one a few minutes later. - observer suspected hot
weather and Moon's low altitude" The ALPO/BAA weight=1.
Gassendi - 1966 Sep 25 UT 20:20-20:50 observed by Moore and
Moseley(Armagh, N.Ireland, 10" refracfor x140) "Reddish patches,
regarded dubious, owing to low altitude of the Moon". NASA
catalog weight=1. NASA catalog ID #981. ALPO/BAA weight=1.
On 1991 May 24 at UT 23:10 M.C. Cook (Frimley, UK) found the
apron region of Censorinus had a very dull white apron, but was
not diffuse. A sketch was supplied by this experienced observer.
The Cameron 2006 catalog ID=428b and the weight=3. The ALPO/BAA
weight=2.
2004 Jul 28 UT 07:25-07:31 R. Dewitt (Transparancy very poor due
to forest fire pollution - Moon looks red, USA, location: Mill
Creek, WA) observed several pin point-like orange flashes of
light occur (2-5 sec duration each and static wrt the Moon's
surface) across the bright illuminated side of the Moon with the
naked eye. Other much fainter, almost instantaneous sparkles
were seen. The brightest flash seen was of 5 sec duration.
Switching to binoculars (15x45, another fainter one was seen
too. Binouculars were handed to wife, who also confirmed similar
flashes. The ALPO/BAA weight=2.
Plato 1872 Jul 16 UTC 21:00? Observed by Pratt (England?) "NW portion
of floor was hazy" NASA catalog weight=3 (average). NASA catalog ID #
179.
Gassendi 1967 Jun 18 UT 21:10-22:30 Observed by Whippey
(Northalt, England, 6" reflector?) "Faint redness outside NE &
SE wall of crater." Moore (10" Armagh refractor, x360) was
observing too 22:10-22:40, with and without a Moon Blink but
detected no redness, however his observing conditions were not
very good at the time. NASA catalog ID #1039. NASA catalog
weight=3. ALPO.BAA weight=2.
Plato 1966 Sep 25 UT 23:12-23:35 Observed by Moseley (Armagh, Nortern
Ireland, 10" refractor, x140) "Eng. moon blink sys. blinks inside the
crater. Very dubious due to low alt. of moon." NASA catalog weight=1
(very low). NASA catalog ID #982.
Gassendi 1967 Jun 18 UT 22:50-23:59 Observed by Whippey
(Northalt, England, 6" reflector?) "Faint redness outside NE &
SE wall of crater." Moore (10" Armagh refractor, x360) was
observing earlier 22:10-22:40, with and without a Moon Blink but
detected no redness, however his observing conditions were not
very good at the time. NASA catalog ID #1039. NASA catalog
weight=3. ALPO.BAA weight=2.
Posidonius 1952 Jul 03 UT 19:13-19:27 Observed by Dzaplashvili,
Ksanforalif, Negrelishvili (Georgia, Soviet Union, 13" reflector,
polarimeter, S=clear) "Making polariz. mess. of it. Aristotles.
Eudoxus. & Aristillus. only Pos. gave higher rdgs. & oscillated while
others gave repeatedly same results. 40 other times Pos. was normal.
Never had seen such behavior Table gives deflections. Obs. repeated 2X
Obs. from 1843-1947h." NASA catalog weight=5. NASA catalog
ID #552. ALPO/BAA weight=5.
Aristrachus 1966 Jul 29 UT 03:40 Observed by Simmons (Jacksonville, FL,
USA, 6" reflector x192, S=7, T=4-5) and Corralitos Observatory (Organ
Pass, NM, USA, 24" reflector + Moonblink) "Spot on S.wall vis. only in
red filter, brightness 8deg. Slightly brighter than surrounding wall.
No confirm. Says it might be part that reflected better. Not confirmed
by Corralitos Obs. MB." NASA catalog ID #968. NASA catalog weight=1
(very low).
On 1938 Mar 13 at UT 04:00-06:00 Barker (Chestnut, England, UK) noted a
slight reddish colour in Plato. However Fox (Newark, UK, 6.5"
reflector, x240) saw none on the south east wall, but instead saw a
yellowish glow on the southern floor at the same time (confirmation?).
Appearently Fox saw the same effect on Apr 10, 11, and May 8-11, then
on June 8-10. The Cameron 2006 catalog ID=432 and the weight=5. The
ALPO/BAA weight=3.
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.
Aristarchus 1972 Apr 25 UTC 19:15-19:20 Observer Ventzke (located at
48.67N, 12.00E) - diffuse brightening on inner N. wall, reddish. 60mm
refractor used. Ref. p53-61 of Hilrecht & Kuveler Moon & Planets vol
30, 1984.
Proclus 1975 May 24 UTC 22:00 Observed by P.W. Foley (Kent, UK)
"Brightenings(?). Seen by more than one obs. ? Foley recorded a ray
projection on photos, but not seen vis. by others." NASA catalog
weight=3? (average?). NASA catalog ID #1405.
On 1975 Mar 24 at UT22:28-22:19 P.W. Foley (Kent, UK) observed
vivid blue/green in Aristarchus. The ALPO/BAA weight=3.
Herodotus 1998 Dec 30 UT 18:50-19:10 observed by J.Knott
(Liverpool, UK 22cm Newtonian, x216, seeing II, transparency
good). Observer reports a bright spot, as bright as the
central peak in Aristarchus on the NW rim of Herodotus at
19:10 (still there at 19:15, but the curious thing was that it
was not visible earlier at 18:50? Now there is a bright
craterlet here, and the observer doubted if what he had seen
was unusual - though we have the rise in brightness o20
minutes to account for? The ALPO/BAA weight=1.
Two small conical mountains, near last 4th May eruption,
close to the third one that he had seen before, but not
these two. They were not on any map.
SE of Langrenous 1947 Aug 28 UT 21:00? Observed by Baum
(Chester, England) A long mountain mass, on limb to the SE of
Langrenus crater, had a decidedly bluish cast. To the north, on
the limb, were several ordinary peaks appearing in profile and
some were sharp and pointed. NASA catalog ID=498. NASA catalog
weight=3. ALPO/BAA weight=2.
Proclus 1950 Jul 27 UT 02:56 Observed by Bartlett (Baltimore,
MD, USA) described in the NASA catalog as: "C.p. of Proc.
disappeared)" 5" reflector used at x100, NASA catalog weight=4.
ALPO/BAA weight=2.
Aristarchus 1963 Oct 30 UT 01:50-02:15 Observed by Greenacre and
Barr (Flagstaff, AZ, USA, 24" Clark Refractor) observed 2 ruby
red spots - one just to the SW of the cobra's Head and the other
on a highland area east of Vallis Schroteri. A pink colour
formed coverting the SW rim of Aristarchus. Effects present with
or without Yellow Wratten 15 filer. Similar effects checked for
elsewhere on other craters but not seen. So presumed not to have
been due to chromatic aberation or astmospheric dispersion.
Effecta not seen in 12" refractor, but this may have been a
resolution issue. The NASA catalog ID No. is #778. The NASA
catalog weight is 5 (highly reliable). ALPO/BAA weight=4.
In 1962 Dec 09 at UT 07:36 Wildey and Pohn (Mt Wilson, CA, USA, 60"
reflector) observed that Oceanus Procellarum was 1.13 magnitudes
brighter than normal. Observation at sunrise and is abnormal if area
measured was mare. If it were an east facing wall it would be normal.
The Cameron 1978 catalog weight=5. The ALPO/BAA weight=2.
In 1962 Dec 09 at UT 07:42 Wildey and Pohn (Mt Wilson, CA, USA, 60"
reflector) observed that Aristarchus was 0.80 magnitudes (x2) fainter
than average for this age (photometric measurement) Vmag=3.80, average=
3.0. The Cameron 1978 catalog weight=5. The ALPO/BAA weight=2.
Herodotus 1950 Jul 27 UT 03:56 Observed by Bartlett
(Baltimore, MD, USA) described in the NASA catalog as: "Pseudo
c.p. in Herod. Drawings. (Similar to NASA catalog event #523)"
5" reflector used at x100, NASA catalog weight=4. ALPO/BAA
weight=3.
On 1992 Feb 16 at UT 01:05-01:35 P. Moore (Selsey, UK, 12.5"
reflector, seeing=III) found the north rim area to be both very
bright and misty - though he did not think it to be a TLP but
wanted it to be recorded, just in case. The Cameron 2006 catalog
ID=440 and the weight=1. The ALPO/BAA weight=2.
Aristarchus-Herodotus 1970 Apr 18 UT 20:14 Observed by MacKenzie
(UK,2.5" refractor x45, seeing Antoniadi I) "Fairly strong blink
in a spot 1/2 way between the 2 craters. Drawing (Apollo 13
watch). NASA catalog weight=2. NASA catalog ID #1257. 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 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 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 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.
Grimaldi 1839 Jun 24 UT 22:00? Observed by Gruithuisen (Munich,
Germany) "Smokey, grey mist". NASA catalog weight=4 (high). NASA
catalog ID #117. ALPO/BAA weight=3.
On 1983 Oct 19 at UT 21:09-23:40 G. North (Bexhill on Sea, UK, seeing
III) found Aristarchus crater to be slightly blue in colour, and very
bright, despite the fact that no colour was seen elsewhere on the Moon.
At 22:08UT Foley (Kent, UK, 12"reflector, seeing II) obtained an
extremely high CED brightness measurement and also picked up a "blue-
violet" cast, especially inside the west rim, furthermore he saw noe
detail in it. The Cameron 2006 catalog ID=230 and the weight=5. The
ALPO/BAA weight=3.
In 1959 Nov (Day unknown) at UT 21:15-22:15 Bradford (South Shields,
UK, 15" reflector, x480) observed in Plato: "Cocealed by a dusky cloud.
Appeared to be stream or smoke. No change in 1h. Following week no
trace. (SR Nov 5, SS Nov 18. Says he obs. at time of unmanned landing,
but there were none in Nov.) Similar to #722". The Cameron 1978 catalog
ID=726 and weight=2. The ALPOS/BAA weight=2.
On 1989 Jun 17 at UT 06:33-07:16 R. Manske (Sun Prairie, WI, USA, 1"
refractor) sketched a nebulous spot near to Herodotus crater that at
06:49 (when he tried some filters out) was visile through red, blue and
yellow filters, though it was slightly fainter through the red filter.
The Cameron 2006 catalog ID=366 and the weight=3. The ALPO/BAA weight=2.
Aristarchus 1963 Oct 30 UTC 22:00? Scarfe (Cambridge, UK)
observed a 30% enhancement at 540nm in the spectra of
Aristarchus. The Cameron 1978 catalog ID No. is 778 and weight
is 5. The ALPO/BAA weight=1 because Oct 30 is not mentioned in
Cameron's refernce.
In 1963 Oct 30 UT 22:00? Scarfe (Cambridge, UK) observed a
30% enhancement at 540nm in the spectra of Copernicus. The
Cameron 1978 catalog ID No. is 778 and weight is 5. The
ALPO/BAA weight=1 because Oct 30 is not mentioned in the ref
that Cameron give's to Scarfe's paper.
On 1789 Jan 10 at UT 00:00 Seyffer (Germany) observed "a lunar
volcano". Cameron comments that this must have been bright as it was
near full Moon. The Cameron 1978 catalog ID=56 and weight=4. The
ALPO/BAA weight=2.
On 1981 Nov 10 at UT 07:54-08:22 D. Louderback (South Bend, WA, USA,
3" refractor and filters, seeing=2-3 and transparency=5) observed a
blue light at the Cobra's Head, near Aristarchus, that fell back down
to a normal brightness of 7. although the west wall (his point D) went
down to 6.5 (this was 8 back on Oct 5). The Cameron 2006 catalog ID=158
and the weight=3. The ALPO/BAA weight=2.
On 1891 Sep 16 at UT 19:00? Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Dense clouds of vapor apparently rising from its bottom and pouring
over its SW wall torrds Herodotus. He says no activity till day after
sunrise & ceases a few days before sunset. (Part of an extensive
observing of only a few features under all aspects of lighting.
Drawings and Phtos obtained." Cameron 1978 catalog ID=269 and weight=1.
ALPO/BAA weight=1.
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 1977 Dec 24 at UT 19:30-23:20 P.Foley (Kent, UK, 12" reflector).
CED Brightness changes were noted in the central peak and the west
wall. The following features remained relatively steady in comparison:
Proclus, Mon Pico north peak, Mons Piton and Censorinus. Cameron 2006
catalog ID=19 and weight=4. ALPO/BAA weight=3.
On 1983 Oct 20 at UT23:40 P. Moore (Selsey, UK) observed that
Aristarchus was brighter than normal (as measured with a CED) and much
more so that Censorinus, Menelaus, and Proclus craters (in turn).
Cameron comments that Moore is a very experienced observer. The
Cameron 2006 catalog ID=231 and the weight=4. The ALPO/BAA weight=2.
Aristarchus 1966 Aug 01 UT 00:50-01:20 Observers: Moore,
Moseley, Corvan (N.Ireland, 10" refractor) - "Eng. moon blink
detected color (red?) on SW wall. Tel. link got other vis.
confirm, & also another moon blink."NASA catalog ID=#960,
weight=5. ALPO/BAA weight=4.
Aristarchus 1965 Sep 10 UT 04:08-04:38 Observed by Bartlett (Baltimore,
MD, USA, 5" reflector x130, x180, S=4, T=3) "S.region of floor
granulated, 7 deg bright, very faint brownish tinge; rest of crater 8
deg bright white (confirm. of Presson?)." NASA catalog weight=4 (high).
NASA catalog ID #892.
On 1977 Mar 04 at UT 20:55-21:18 JH Robinson (Teighmouth, Devon, UK,
26cm reflector, x200, Wratten 25 and 44a filters, seeing steady,
transparency varies from fair to very poor and cloud eventually halted
observations). Copernicus was very indistinct. All other features
examined were normal. This is a BAA Lunar Section observation. ALPO/BAA
weight=2.
On 1977 Mar 04 at UT 20:55-21:18 JH Robinson (Teighmouth, Devon, UK,
26cm reflector, x200, Wratten 25 and 44a filters, seeing steady,
transparency varies from fair to very poor and cloud eventually halted
observations). The floor of Fracastorius is significantly brighter in a
red filter than in a blue filter. This is a BAA Lunar Section
observation. ALPO/BAA weight=1.
On 1891 Sep 17 at UT 18:00? Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Varitions in vapor column. Crater D covered. (there are rays here --
high sun effect on them?) Drawings. Time estimated from given
colongitude)." Cameron 1978 catalog ID=270 and weight=1. ALPO/BAA
weight=1.
On 1990 May 09 at UT08:24-08:28 D. Louderback (South Bend, WA, USA, 3"
reflector, x150, Clears sky) noticeed in Promontorium Agarum (Cape
Agarum), that at 08:24UT the west point (C) dimmed to a brightness of
6.5 before ragaining its normal brightness at 7. Cameron comments that
these are wedge measurements equivalent to 0.5 steps in Elger's
brightness scale. No other effects noticed elsewhere. The Cameron 2006
catalog ID=404 and the weight=3. The ALPO/BAA weight=2.
On 1977 Jan 04 at 16:25-17:30 Kozyrev (Pulkovo Observatory, Crimea,
Ukraine, Soview Union) "Observed unusual processes on moon. Activity in
progress at beginning of obs. Still vis. at 1710, gone at 1730h.
Latharn & colleagues found no seismic activity at that timeunder a
quick look". The Cameron 1978 catalog weight=4 and ID=1460. The
ALPO/BAA weight=2.
On 1976 Feb 14 at UT23:35-0053 LeCroy (Springfield, VA, USA, 4.5"
reflector, x75, S=6 and T=4.5). A blue haze was seen on the east side
of Aristarchus and red haze on the west side. At 00:00UT details were
more clear and at 00:24UT Aristarchus and Herodotus, were seperated. At
00:34UT colours were gone. At 00:35UT blue was on Aristarchus and the
area was bright, but was black in a red filter. At 00:53UT the features
were clear and the colour gone and the brightness had decreased to 9.
Cameron comments that the colour was not due to temp. inversion because
of being dark in the red filter, implying a medium). The Cameron 1978
catalog TLP ID is 1428 and the weight=1. This is an ALPO report. The
ALPO/BAA weight=1.
On 1938 Jan 16 at UT 00:00 Barker (Chestnut, England, UK, 12.5"
reflector) noticed that Plato crater had a brownish-gold veined
surface, colour irregular - laid on a smooth floor. The Cameron
1978 catalog ID=430 and weight=3. The ALPO/BAA weight=2.
On 1996 Dec 24/25 at 18:12-00:02UT P. Moore (Selsey, UK, using a 15"
reflector x250-360, and seeing III) saw a strong orange colour on the
south wall and floor of Aristarchus. He suspected it to be spurious
colour but could not detect colours on any other craters. The colour
remained but at 18:12 UT he suspected a trace on colour on Mons Pico
but was not sure. However he reported it to the TLP coordinator of the
BAA Lunar Section. The orange in Aristarchus gradually faded and had
almost vanished by 00:20UT when seeing was too bad to continue
observing. At 02:30UT he was able to re-observe again and there was
still a very very slight hint of orange in Aristarchus - but he
comments that if he had not been looking for it he might not have
noticed. ALPO/BAA weight=2.
Plato 1966 Aug 01 UT 06:14 Observed by Kelsey (Riverside, CA,
USA, 8" reflector x300) The wall from the S to the NNE wouldn't
focus well though at least 4 craterlets on the floor were
clearly seen (Ricker uncertain if real TLP. Cameron thinks it
probably was -- similar to Bartlett's experience on Aris. NASA
catalog weight=2. NASA catalog ID #961. 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?
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.
Plato 1944 Sep 03 UTC 03:40 - A.W. Mount (Fort Worth, TX, USA,
Conditions good, seeing 6/10) saw a small white bright point of
light appear suddenly close to the W. wall of Plato glowed
briefly as by far the most conspicuous object in the lunar field
of view and vanished quickly after approximately 2 sec. It was
star-like in appearance and was stationary on the Moon's surface
- about magnitude 6? Angular diameter of the flash was <= 1".
Observing conditions good enough to see the central craterlet in
Plato. 20cm reflector used. Ref. DJALPO Vol 45, p28 Spring 2003.
On 1898 Apr 06 atUT 23:00 Pickering (Cambridge, Mass, USA, 15"
refractor?) observed in Schroter's valley and it's vicinity "Variations
in vapor col. Crater E now most conspicuous instead of C which is now
least conspic., but not covered with vapor. (in drawing 2 gaps show,
time est. fr. given ol. ". The cameron 1978 catalog ID=298 and weight=
3. The ALPO/BAA weight=2.
On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector)
observed something unusual in Aristarchus/Copernicus/Kepler -
the Cameron catalog is not very clear which. The Cameron 1978
catalog ID=779 and weight=5. ALPO/BAA weight=1.
On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du
Midi, France, 24" reflector) observed in Kepler an
enhancement in red light at 672.5nm and 545.0nm. Luminescence
~86% +/-3% of background. According to the Cameron catalog,
Moore(12" reflector, UK) noted something unsual between 22:30
and 03:00 but this might apply to Kepler, Coperncius, and/or
Aristarchus and that was seen 23:30-03:00? - the catalog is not
very clear. The Cameron 1978 catalog ID=779 and weight=5. The
ALPO/BAA weight=4.
On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector)
observed something unusual in Aristarchus/Copernicus/Kepler -
the Cameron catalog is not very clear which. The Cameron 1978
catalog ID=779 and weight=5. ALPO/BAA weight=1.
On 1963 Nov 02 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral
line dpeth anomaly? The cameron 1978 catalog ID=780 and weight=5. The
ALPO/BAA weight=4.
On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du
Midi, France, 24" reflector) observed in Kepler an
enhancement in red light at 672.5nm and 545.0nm. Luminescence
~86% +/-3% of background. The Cameron catalog says that Moore
saw something between 23:30 and 03:00, but it is not clear
what exactly, or whether it was Copernicus, Kepler, or
Aristarchus? The Cameron 1978 catalog ID=779 and weight=5.
The ALPO/BAA weight=5.
On 1980 Sep 24 at UT 21:13-23:50 P.Moore (Selsey, UK) at 22:45 saw loss
of detail in the north west wall, especially in red light, but also
slightly in blue light too. By 22:48 there was activity on the crater
floor i.e. the four bright spots were visible in white light but not in
red. In blue the central spot was seen and there were dark radial
streaks to the south wall and south east. At 22:50 there was a loss of
detail. Other craters were normal. At 23:08 the floor was dark in red,
but some details were visible in blue. the effect had finished by
23:35. At21:34 J-H Robinson found Plato to be normal and no blinks,
though floor clearer in red than in blue, however the floor detail had
gone by 21:57. Blair suspected a dusty patch in north of Plato,
especially in red light. at 21:57 and it started spreading at 21:13,
then east at 21:15 and then north. Though it faded at 21:25 but was
back again at 21:35, and Moon blink colour filters still gave a
reaction at 21:50 - the TLP remained strong until 23:50UT. The Cameron
2006 catalog ID=110 and weight=5. The ALPO/BAA weight=4.
On 1980 Sep 24 at UT21:34 J-J. Robinson (Teighmouth, Devon, UK, 10"
reflector, x200, seeing=III) found, using a Moon Blink device, that
Fracastorius blinked on the northern side in the red filter. Cameron
2006 catalog ID=110 and weight=5. ALPO/BAA weight=3.
On 1993 Mar 08 at UT 22:30 R. Titford (England, UK, 8.5" reflector,
seeing=III) found a very bright white area on the northern wall, "floor
< Mare Imbrium". The Cameron 2006 catalog ID=456 and weight=3. The
ALPO/BAA weight=2.
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.
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.
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.
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 1939 Dec 27 UT 08:00? Observed by Barcroft (Madera, CA,
USA, 6" reflector) "Faint bluish mist on inner W. wall (according to
Firsoff it was right after SR, but this can't be as age=16d & SR comes
at 11d)" NASA catalog weight=3 (average). NASA catalog ID #464.
On 1975 Mar 28 at UT22:30-23:42 P.W. Foley (Kent, UK) observed
orange/red in Aristarchus. The 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. This is a BAA report. The ALPO/BAA weight=1.
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
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.
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 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.
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.
On 1975 Dec ?? at 19:00UT P.W.Foley (Kent, UK), and possibly P. Moore?
(Selsey, UK) - unusual events were reported which might have been due
to minor structral changes. Albedo=76% (=7.6?). Cameron 1978 catalog
ID=1425 and weight=3. 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.
Aristarchus 1975 Dec 19 UT 22:45 Observed by Foley (Kent, England)
"Suspected anomaly in it", NASA catalog weight=1 (very low). NASA
catalog ID #1424.
On 1975 Dec 19 at UT22:45 P.W. Foley (Kent, UK) suspected an anomaly in
Aristarchus. Cameron 1978 catalog weight=1424 and weight=1. ALPO/BAA
weight=1.
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.
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 2013 Dec 19 N. Longshaw (Oldham, UK, Seeing III, TAK FS 78
APO Refracror) observed a diffuse area east of the central
peak of Geminus, to be sepia/brownish tint. The ALPO/BAA
weight=3.
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.
Aristarchus 1979 Nov 07/08 UT 23:10-00:00 Observed by R.H.
Ricketts (Lewis, Sussex, UK, 10" reflector, x300, Seeing
Antoniadi II) - obscuration and colouration seen. 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.
Proclus 2001 Nov 04 UTC 07:00-07:43 "Robin Gray of Winneucca, Nevada,
U.S.A. reported a contrast effect and brightening in the crater
Proclus. Using a 15.2 cm refractor he conducted a Moon blink search
with Wratten 25a and 38a blue filters. His report goes as follows:
Moon Blink carried out. In Red 25 Proclus looked nearly the
same as in white light. Through the Blue 38a filter, however, only the
brilliant lit south east wall was clearly visible. The northeast wall
was very dim with this filter. With no filters the NE and SE wall were
brilliantly lit, the SE wall was almost as bright as Aristarchus. A
thread like strip along the NW wall, possibly the rim of the crater,
was also brilliantly illuminated. The interior of the crater was a
featureless stygian black with the exception of a brilliant (intensity
9) thread of light that ran parallel to the illuminated east wall.
Whether this was an L.T.P. or an optical effect of atmospheric
turbulence is unknown, did not see anything similar elsewhere along the
terminator though" ALPO/BAA weight=3.
Plato 1886 Nov 14 UT 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
(average). NASA catalog ID #253.
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=1.
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 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 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 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.