On 1966 Sep 20 at UT 03:22 Three Astronet observers (Phoenix, AZ, and
Los Angeles, CA, USA) (independently?) reported flashes in Grimaldi
crater. One observer was in Phoenix AZ, and another in Losa Angeles,
CA, so probably not due to the atmosphere. Cameron comments that the
astronaut Schmidt on Apollo 17 saw a flash in it while orbiting the
Moon. the Cameron 1978 catalog ID=977 and the weight=5. The ALPO/BAA
weight=4.
On 1969 Jul 19 at UT 1845-18:47 Pruss and Witte (Bochum, Germany, 6"
refractor x36 and binoculars) saw brightenings in the north west wall
of Aristarchus for 3-7 seconds of about 1 magnitude over the
background. From orbit at UT 18:46 the Apollo 11 crew Armstrong,
Aldrin, and Collins (in orbit around the Moon and using the naked eye)
were asked to take a look at Aristarchus after Earth-based reports of
TLP activity. Armstrong reported (after the solar corona had set, on
the night side) that probably Aristarchus "to be considerably more
illuminated than the surrounding area. It just has - seem to have, a
slight amount of flourescence to it". Collins reported a moment later:
"Looking out on the same area now. Well at least there is one wall of
the crater that seems to be more illuminated than the others. I am not
sure that I am actually identifying any phosporesecence, but that
definitely is lighter than anything else in the neighborhood". Houston
then asked if the crew could detect any colour and if the inner wall
was the inner or outer part? Aldrim commnted that it was the inner
wall and Collins mentioned thatno colour was incolved. The Cameron 1978
catalog ID=1165 and weight=5. The ALPO/BAA weight=3.
On 1969 Jul 19 at UT 19:30-21:30 Gervais (Lodure, France, 4.5"
refractor?) saw the whole region of Aristarchus and its environs
as brighter than normal. Two photographs were obtained. The
Cameron 1978 catalog ID=1156 and weight=5. At UT 20:30-20:55
Oliver (Spain, using a reflector) found the Aristarchus to have
brightened by about 1 magnitude. From UT 20:12-20:30 the crater
had been normal. The Cameron 1978 catalog ID=1167 and the
weight=2. At UT 21:00-00:35 P. Mourilhe Silva (Rio de Janeiro,
Brazil, 19.5" refractor) saw Aristarchus as a very bright
elliptical shape which extended to the north like a bridge
between two points. Jose M. L. da Silva and Ronaldo Mourao (Rio
de Janeiro, Brazil, 13" refractor) saw a brightening on the
north west wall from 21:24-23:22UT intermittently but cont'd.
Wall was extraordinarilly bright, along NW wall brighter.
Moseley (Armagh, Northern Ireland, UK, 10" refractor) detected
an unusual bright, along north west wall, brighter than normal
in Earthshine and brighter than crater. It was not constant, but
pulsated irregularly with frequency of 20 seconds and amplitude
0.75-1.0 magnitudes. No colour seen or obscuration though lokked
for. Clouds interrupted observations. Vasquez (Valparaiso,
Chile, 12" reflector) saw it as a very luminous point of
magnitude 1. Wairy Cardoso (Rio de Janeiro, Brazil, 12"
reflector and 18" refractor) noted a bright. 1s??? The Cameron
catalog ID=1168 and the weight=5. The ALPO/BAA weight=4.
Theophilus 1969 Jul 19 UT 19:30-21:30 Observed by Fox (Notts.
England, 6.5" reflector) and Ringsdore (England, 15"
reflector). Fox saw intermittent glow in Theoph. for > 2h
(time not given). Ringsdore confirmed. (Apollo 11 watch)"
Confirmed by Baum 21:00-21:20UT. NASA catalog weight=5. NASA
catalog ID No. 1166. ALPO/BAA weight=4.
Fracastorius 1973 Mar 09 UT ~19:57 Robinson (Devon, UK) saw a
Moon Blink (colour) in this crater. This crater is long
suspected of giving permanent blinks due to natural colour. The
ALPO/BAA weight=1.
South Pole 2011 Apr 08 UT 19:30-20:00 A.Kemp (Mold, Flintshire, UK) observed that the
Leibnitz peaks at the southern pole stood out sharply. However one of the peaks was “shining
like a spot light. So bright that I couldn’t make out its shape”. – image clear and steady with
excellent transparency and seeing in the 70mm f/13 refractor (25mm and 10mm eyepieces).
Inspections during the above time period revealed no changes in brightness. Previous
observations of this area had never shown such an unusual brightness, and Arthur likened the
brightness to “a maximum brightness of Venus shining amongst 2nd magnitude stars”. The
observer was an experienced observer. ALPO/BAA weight=2.
Grimaldi 1969 Jul 19 UT 20:39-20:45 Delaye (France, 25cm
refractor) saw a bright bluish spot near Grimaldi. 20:43 a
flash was seen by Thinon. Delaye saw flashes at 20:44 and
20:45. Between 21:00 and 23:00 (J. M. L.) da Silva (Rio de
Janeiro, Brazil, 19.5" refractor) saw a bright spot on the W
(IAU??) of Grimaldi. However there is a bright spot near
Grimaldi, so this maybe normal. NASA ID = 1167. The ALPO/BAA
weight=2.
Mare Crisium 1826 Apr 12 UT 20:00 Observed by Emmett (England?) "Black
moving haze or cloud". NASA catalog weight=2 (low). NASA catalog ID
109. ALPO/BAA weight=1.
On 1990 Mar 31 at UT 21:30 L. Jackson (England, UK?) observed a red
glow in Earthshine in Gassendi as shown in a sketch. Apparently
Gassendi can often show up red colours (according to Cameron) but
rarely is this seen in Earthshine. Foley saw the sketch and suspects
that the location was Gassendi. The Cameron 1978 catalog ID=397 and
weight=2. The ALPO/BAA weight=3.
Alphonsus area? 1949 Jun 01 UT 22:06 H.P. Wilkins (Kent, UK, 6"
reflector x200) observed a bright white 1 sec stationary (mag
3?) flash in Earthhsine, close to the central meridian, and due
E of Theophilus (potentially in the general area of Alphonsus?).
The flash was approximately 6 km in diameter. ALPO/BAA weight=1.
On 1970 Apr 11 at UT 22:04-23:00 Claudio Pamplona and Jackson
Barbosa(Fortaleza, Brazil, 2" refractor, x160, seeing=fair)
observed an obscuration over Peirce, in particular they could
not see the crater wall and the crater itself was like a black
pit. (Apollo 13 watch). The Cameron 1978 catalog ID=1238 and
weight=1. The ALPO/BAA weight=1.
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 1969 Jul 20 at UT 19:55-20:10 Delaye, Thinon, Donas, and Jourdran
(Marseilles, France, 10" refractor, x60) saw between 19:55-20:04UT
Aristarchus to be bright and in it pulsations with 10 sec duration. At
20:05UT it's spot brightened, at 20:08:50-20:35:50UT brightening and
pulsations of variable duration. At 20:55:50UT just a feeble flash.
Cameron comments that this is probably not atmpsheric effects as the
period is too long - also it was during the Apollo 11 watch. The
Cameron 1978 catalog ID=1175 and th weight=3. The ALPO/BAA weight=3.
On 1969 May22 at UT2045-2105 Wald (Zurich, Switzerland) observed the
pinkish colour in Aristarchus was less marked tonight. The astronauts
were alerted and at 22:12 reported no activity but could see the crater
and Earthshine was strong near the terminator. Apollo 10 watch,
spacecraft far from the terminator. The Cameron 1978 catalog ID=1134
and the weight=2. The ALPO/BAA weight=2.
Atlas 1969 May 22 UT 21:20-21:40 Observed by Germann, Wild, Vieli
(Zurich, Switzerland, 6" reflector) "Rim towards the sun was bright.
Part of time was interrupted. (Apollo 10 watch)" NASA catalog weight=3
(average). NASA catalog ID #1135.
Theophilus 1969 Jul 20 UT 18:40 Observed by Delaye, Thinon, Donas, ?
ourdan (Marseilles, France, 10" refractor x60) "Saw a flash on the c.p.
of mag 1.0, duration 0.1s, no color. (meteor?) (Apollo 11 watch)".
NASA catalog weight=1 (very low). NASA catalog ID #1174.
Mare Crisium 1826 Apr 13 UT 20:00 Observed by Emmett (England?) "Black
moving haze or cloud" NASA catalog weight=2 (low). NASA catalog ID =
109. ALPO/BAA weight=1.
On 1969 May 22 at UT23:20 an unknown observer reported some
brightenings with pulsations in Aristarchus crater, Cameron suspects
atmospheric aberrations. This was during the Apollo 10 watch. The
Cameron 1978 catalog ID=1136 and weight=1. The ALPO/BAA weight=1.
2005 Jul 13 UT 01:18 W.Watson (USA, East coast, transparancy:
heavy hazy cirrus, and the only other object visible was
Jupiter) observed a naked eye flash on the Moon in the northern
hemisphere, with a magnitude of -3 to -4. The ALPO/BAA weight=1.
On 1969 Jul 20 at 22:50-23:15UT Jean Nicolini (Sao Paulo,
Brazil, 12" reflector x430, S=II.5-III.5) saw a weak reddish
area on the north west(east?) wall of Eudoxus crater. An
English Moon Blink device showed it dark in blue and opaque in
red. Reddening remained unchanged while comparing it to
adjacent region and Aristotles. Colour index was toward dirty
orange. Colour most apparent in the good moments of seeing and
disappeared in the poorer moments of seeing, Cameron says that
this is opposite to what was expected if the effect was
atmospheric in origin and no colour was seen in Aristotles.
Apollo 11 watch. Cameron 1978 catalog ID=1177 and weight=3.
The 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 1970 Apr 12 at UT 22:10-22:40 Censorinus was observed by Jean
Nicolini (Sao Paulo, Brazil, 12" reflector, x680). The crater
had a visible reddish hue--gap in bright area on western slope.
Colourless to pink to reddish. Environs also involved.
Photographs were taken. (Apollo 13 watch). Cameron 1978 catalog
TLP ID 1241 and weight=3. ALPO/BAA weight=3.
Proclus 2005 Jun 13 UT 16:00-17:10 Observed by Julio Lobo
(Campinas, Brazil, 500mm telescope + finder scope) "Glow and
reddishness (pink) seen on circular rim. Also crater was
intensely bright all over. After 16:30 the brightness fades,
returning to normal. The ALPO/BAA weight=3.
Hyginius Cleft 1966 Jul 25 UT 04:40 observed by Kelsey (Riverside, CA,
USA, 8" reflector, x300) "Points at opposite ends of cleft were very
brilliant in red Wratten 25 filter & very dull in blue Wratten 47
filter. Richer uncertain if real LTP." NASA catalog weight=1. NASA
catalog ID #957.
Theophilus 1969 Jul 21 UT 19:30-21:45 and 21:00-22:00 Observed by Fox
(Newark, England, 6.5" reflector,) and Baum (Chester, England, 4.5"
refractor) (S=6, T=4) "At wall, adjacent to Cyrillus was a redish glow,
then obscur. (Fox). Baum saw intermittant white-blue shimmering as if
glowing thru dust glowing & upsurge in brightness on c.p. Gradually
faded to normal at 21:20. 1st time ever seen by him tho. obs. since
1947. Image sharp, no haziness. (indep. confirm. of activity, but
details differ, but same time, Apollo 11 watch)." NASA catalog
weight=5. NASA catalog ID #1180. ALPO/BAA weight=3.
On 1991 May 21 at UT05:30-06:15 J. Green (Orangevale, CA, USA, 11"
reflector) photgrapphed a broad bright band stretching east and north
of Cassini crater in 3 exposures taken 10 minutes apart. This
photographic sequence shows a gradual widening towards Cassini and by
the 3rd exposure the band is touching (and then obscuring) Cassini. A
"fan" was visible in the north east and WSW directions, later this was
seen as rays and this was even seen in the view finder of the camera.
Cameron comments that this might be lens flare but suspects that it
would not have been seen in the view finder. The Cameron 2006 catalog
ID=427 and the weight=5. The ALPO/BAA weight=2.
Mons Piton 2022 Aug 04 UT 19:41-20:10 T. Smith (Codnor, UK,
16inch Newtonian, x247, Seeing IV) mountain was very bright
and red around its eastern slopes. An examination of the
bright and contrasty Proclus crater revealed that to be
relatively colour free compared to Piton. An examination of
other features, north and south along the terminator revealed
some tinge of coloiur but not as strong as on Mon Piton. Mons
Piton examined with a yellow filter at 19:50 and still showed
red along the eastern side, other features along the
terminator had no colour through the filter. Video images by.
A.Cook (Newtown, UK) made earlier at 1929 & 19:40 UT, (in the
SWIR (1.5-1.7 microns) did not reveal Mons Pico as especially
bright - but resolutioin was poor. A friend of Smith, phoned
up the next day to say that they saw a mountain on the limb
exhibiting red on the 14th August. Probably the redness was
due to atmospheric spectral dispersion as the Moon was low,
and it was especially visble on Mons Piton as this is an
exceedingly contrasty object on the terminator. ALPO/BAA
weight=1.
North of Bessel 1969 May 1969 May 23 UT 22:54. Nelson Travnik
(Observatorio Flammarion, located at 45.58W, 21.87S, f/15
10cm refractor, Kodak Tri-X, 1/15 sec exposure, sky
conditions excellent). Dark spot photographed just north of
Bessel - could be a photographic defect?. ALPO/BAA weight=1.
Piton 1970 Apr 13 UT 22:06-01:30 Observed by Cutts (Waverton,
UK) "Peak was bright (Apollo 13 watch. Shining in dark?)"
NASA catalog weight=1. NASA catalog ID #1247. Similar
illumination shown on Hatfield Plate 2E(left).
ALPO/BAA weight=1.
On 1982 Aug 26 at UT 21:00 Arsyukhin (Moscow, Russia, 3" reflector)
found that Poisson appeared hazy. The Cameron 2006 catalog ID=181 and
weight=3. The ALPO/BAA weight=1.
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.
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.
Plato 1887 Nov 23 UT 20:00? Observed by de Speissens (France?)
"Luminous triangle on floor. Klein says it was sunlight affect. (but
similar to Klein's own obs., #190. Fort says never seen before nor
since)." NASA catalog weight=0 (very unlikely). NASA catalog ID #256.
ALPO/BAA weight=1.
Piton 1960 Nov 27 ? UT 00:00? Observed by Schneller
(Cleveland, OH, USA, 8" Reflector, x53), "Red obscuration
concealing peak, @10m2 (if near SR, date is 27th; ancillary
data given for 27th -- date not given)." NASA catalog weight=
3. NASA catalog ID #731. ALPO/BAA weight=2.
Censorinus 1969 May 24 UTC 21:10-22:15 Observed by Jean
Nicolini (Sao Paulo, Brazil, 12" reflector) "It was brighter
than Proclus between 2130-2145h. A very tiny cirrus veil
present & Censor. appeared less bright & Proc. continued to
look normal. Weather worsened at 2215h. (Apollo 10 watch)."
NASA catalog weight=2. NASA catalog ID #1144. ALPO/BAA
weight=1.
Theophilus 1978 Nov 08 UT 20:49-22:00 Observed by J.D. Cook
(Frimley, 12" reflector, 6mm Ortho eyepiece, seeing III-IV)
Orange discolouration seen on ESE crater floor. Moon blink
tried, but no blink detected. By 21:10 the effect had lessened,
but was still orange. By 21:50-21:58 the effect was smaller and
perhaps more on the SE of the floor. Colour confirmed by Foley.
Fitton may also have been observing. At 22:00 A.C. Cook observed
and commented that a darkish, perhaps brown-orange colour seen -
but suspected it was probably spurious colour - but by now the
seeing was V. J.H. Robinson, whilst doing a Moon Blink sweep of
several features, including Theophilus, had not noticed anything
unusual 18:50-19:10. By 22:30-22:35UT, he still could not detect
a blink, but noticed intermittent darkining on the shaded area
on the E. floor, but seeing was now IV. The darkening was more
noticeable in blue than red light. BAA Lunar Section
observation. 2006 Cameron catalog ID #40 weight=3. ALPO/BAA
weight=1.
2 deg S of Maskelyne (29E, 1N) 1969 May 25 UT 01:15-01:56
Observed by Jean, Barry, Bernie, (2) Madison (Montreal,
Canada, USA, 4" refractor) "Very vis. pink patch red as seen
thru a yellow filter. Photo of bright red spot nr. Mask.
(confirm. -- Apollo 10 watch)" NASA catalog weight=5 and 5.
NASA catalog ID #1145. ALPO/BAA weoight=3.
Hercules 1970 Apr 14 UT 23:10-23:45 Observed by Jean Nicolini
(Sao Paulo, Brazil, 12" reflector, x680) "Vis. reddish-brown hue
to shaded area. In crater -- different from Atlas. Phenon.
stayed after moving telescope. Photos obtained. Not chrom.
Abber. (Apollo 13 watch)" NASA catalog weight=5. NASA catalog ID
#1251. ALPO/BAA weight=4.
Birt 1955 Apr 15 UT 03:20-05:00 Observed by Capen (California
Seeing=Excellent) "Small craters between Birt & wall were invis. at
times under excellent seeing, while craterlets on w.side were
continually obs." NASA catalog weight=4 (high). NASA catalog ID #586.
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 1990 Apr 04 at UT 21:30-21:50 B. LeFranc (France?) reported
observing a white flame effect in Copernicus crater (sketch made) -
though Foley comments that the actual location was east of the crater.
The Cameron 2006 catalog ID=398 and the weight=2. The ALPO/BAA
weight=2.
Posidonius 1970 Apr 15 UT 21:05-22:10 Observed by Wanderley
Nazareth (Sao Paulo, Brazil, reflector) "Intermittant
pulsation. Drawing 20S interval for pulsations. (too long for
atmospheric aberration? Apollo 13 watch)." NASA catalog
weight=3. NASA catalog ID #1254. ALPO/BAA weight=3.
Alpetragius 1889 Oct 04 UT 03:00-03:45 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 Sep 3, 1830L T)" NASA catalog
weight=4. NASA catalog ID #264. ALPO/BAA weight=2.
On 1982 Oct 26 at UT 20:41-22:22 P. Madej (Huddersfield, UK, seeing=II
and transparency=good) found that a blurring effect on the crater
Yerkes had spread to Picard (~3.5 deg brightness). The effect was not
detected in yellow light from the Wratten 15 filter, but a brightness
change was picked up in red Wratten 25 light. J.D. Cook found dark
surrounding Picard bright illumination. The Cameron 2006 catalog ID=188
and weight=5. The ALPO/BAA weight=3.
Yerkes-Picard 1982 Oct 26 UT 20:41-22:22 and 21:31 Observed by Madej
(Yorkshire, England, Seeing II, Transparency Good) and Cook (Frimley,
England, Seeing=II, Transparency Good) "(Madej) could not focus Yerkes
as well as could Peirce. By 2041 effect extended to Picard (~3.5 deg).
In W15 filter not apparent, but albedo change was very marked in W25
red filter. (M. Cook) at 2222 noted faint orange around Yerkes E.
Spurious color seen in other areas. Color around Yerkes intermittent.
In blue filter it was still orange. (J. Cook) at 2131 noted S rim
of moon was orange & seeing was such that it was fizzing. Around Yerkes
only orange tint - tending intermittent" Cameron (2006) catalog ID #188
& weight=5 (very good). ALPO/BAA weight=1.
Manilius 1970 May 04 UTC 19:20 Observer: Mansfield (Cape Town,
S.Africa), distinct pink colour noticed. NASA catalog ID No. #1294.
Weight assigned to this observation by the NASA catalog was 3
(average).
Near and on Plato 1970 Apr 15 UT 21:45-22:04 Observed by da
Silva (Sao Paulo, Brazil, 10" & 20" refractors) "Crater chain W.
of Plato -- 3rd crater W. (Plato Y) was brighter than
surroundings. Lozenge on W. wall (landslip?) was darker than
inner wall. Bright part of wall was yellowish-white. da Silva
reports this as neg. (normal aspects) obs (Apollo 13 watch
probably normal as Y is a bright halo crater)." NASA catalog
weight=0. NASA catalog ID #1255. ALPO/BAA weight=1.
Tycho 1970- Apr 15 UTC 22:00-23:00 Observer: Nelson Travnik
(Matias Barbosa, Minas Gerais, Brazil, 4" refractor, x250 &
x400, seeing excellent, Wratten 15 and 23 filters used)
"Slightly pulsating white glow on W. (IAU?) wall's external
slope (Apollo 13 watch). NASA catalog ID #1256, NASA weight=2.
ALPO/BAA weight=2.
Proclus 1972 Mar 24 UTC 16:29-19:22 observed by Hopp (52.5N, 13.25E,
75mm refractor) "Enormous brightening, vanished until 1922. Pattern
changed from oval to circular several times."Hilbrecht and Kuveler,
Earth, Moon & Planets, 30 (1984), p53-61
On 1990 Apr 05 at UT 00:43-01:46 D. Darling (Sun Praire, WI, USA, 3"
refractor, x90) observed that Bullialdus (the crater was in shadow) was
pink in colour on the edge of its wall. The effect lasted from 01:15-
01:44UT and he could discern the terrace on the western wall.
Comparisons were made to Tycho and Copernicus - all of which were
normal. The Cameron 2006 catalog ID=399 and the weight=3. The 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.
Plato 1966 Jun 27 UT 21:40-21:55 Observed by Robinson (Teignmouth,
England, 10.5" reflector) and Sartory (England, 8.5" reflector + Moon
blink) "Color (red?) on SE wall detected by Eng. moon blink sys.
(confirm)." NASA catalog weight=5 (very high). NASA catalog ID 949.
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.
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.
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.
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 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.
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.
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.
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.
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 1989 May 17 at UT Fabian (Chicago, IL, USA, 4" reflector, x35-x50
and 8" reflector) noted a pale blue colouration in the ridges situated
west of Aristarchus and north of Herodotus craters, in the vicinity of
the terminator (and on the night side). Aristarchus itself did not have
any colour. Ďt was only area with such color though there were numerous
others of similar elevation and relation to term. The colour was seen
in a 4" Cassegrain telescope, but when an 8" reflector was used at
02:30UT, even with the same eyepieces. Cameron comments that maybe the
larger telescope spread the colour out? The sketch that Fabian
suplied, suggested to Cameron that the TLP was located at Herodotus,
and the ridge was part of Schroter's valley - Cobra Head. The Cameron
2006 catalog ID=364 and the weight=2. The ALPO/BAA weight=2.
On 1978 Jan 20 at UT19:10 P.W. Foley (Kent, UK, 12" reflector) observed
a red spot at the southern edge of Gassendi C. P. Moore (Slesey, UK,
15" reflector, S=II-III) reported nothing unusual 17:00-17:50. Turner
and others reported negative at 22:01. Pedler (UK, 12.5" reflector,
S=III-IV) though detected a yellow-orange tint on the east floor of
Gassendi A but the effect faded during poor seeing moments. Cameron
2005 catalog ID=24 and weight=5. ALPO/BAA weight=3.
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 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.
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 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.
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.
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.
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.
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.
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.
Aristarchus and Cobra Head 1966 Jul 30 UT 06:35-07:29 Observers Ariola
and Cross (Whittier, CA, USA). NASA catalog states: "S. part of Cobra
Head nr. Herodotus was a red spot; also nr. Aris. & the fork of
Schroter's Valley. Variations in phenom. color, 1st on S. rim of Aris.,
later on N. rim. Drawings". 19" x390 reflector used. NASA catalog
weight=5. NASA catalog TLP ID No. #959. ALPO/BAA weight=4.
Torricelli B 2002 Oct 18 UTC 20:56-21:59 Observer: G.North (UK, 8"
reflector, x134, Seeing Antoniadi IV, Transparency good) - thought that
Torricelli B was perhaps a little brighter than expected, especially
when compared to Moltke and Censorinus based upon past recollection of
relative brightnesses at this colongitude). Slight bluish tint seen as
well. The ALPO/BAA weight=1.
On 1975 Feb 23 at UT 18:00-00:24 P.W. Foley (Kent, UK, 12 inch
reflector, seeing Good), noticed that Aristarchus was a slate-grey
tinged with blue, and abnormally bright, fading at UT 18:47, and
decreased activity at UT20:45 after a cloudy period. Blue was seen on
the northern wall at UT19:00, but at 19:10 no colour, but instead an
obscuration. All normal from UT 21:04-21:46 according to Foley. At
UT19:00 G. Amery (Reading, UK, 10 inch reflector) noted shadowy grey
near the shadow under the south wall, indistinct small area, no colour.
At UT 20:00 activity increased. Colour negative fr. 150-300x till 21:10
(Hunt, Cambridge, UK, 2.5" refractor, seeing Poor-Very good). Negative
fr. 20:20-21:00 in bad seeing, and very good seeing at 200x all
negative (colour blink filters). From 23:45-00:20UT (Fitton,
Lancashire, UK, 8" reflector). Turner of Sussex, UK with an 8"
reflector, observed as well. (confirm. of activity earlier & neg.
later). Cameron 1978 catalog ID=1397 and weight=5. ALPO/BAA weight=3.
Aristarchus 1963 Oct 30 UT 05:00-08:00 Observed by Greenacre and
Barr (Flagstaff, AZ, USA, 24" Clark Refractor) a violet or
purple-blue colour formed beyond the NW of Aristarchus. ALPO/BAA
weight=2. This followed an earlier observation that night of two
red spots and a pink glow.
On 1981 Oct 11 at UT 00:05-02:00 B.Hobdell (St Petersberg, FL, USA, 4"
refractor, S=3 and T=5) observed a brightening on the floor of Plato. 4
bright spots appeared and vanished and there was a fith one in the
centre that was very bright at times. At UT 00:14 the central spot
became bright then was "followed by a haze permeating entire floor,
heaviest in the northern quadrant. Came from 2 S peaks or white spots,
shaped like a boomerang extending to presumed c.p. (c.c ?). White
flashed at 0052 from it cloud changed shape - spread N. At 0136
brightening from c.c. area 0419 dissipated. All white spots seen at
0200. Its outer flanks seen clearly the whole time". The above is
quoted from the Cameron 2006 catalog ID=155 and weight=3. The ALPO/BAA
weight=3.
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.
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 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 - 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.
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.
Aristarchus 1975 Feb 24 UTC 18:00-23:30 Observers (all in UK): Foley
(Kent, 12" reflector), Gannon (Middlesex, 6" reflector), Peters (Kent,
8" reflector), Farrant (Cambridge, 8" reflector), Turner (Sussex, 8"
reflector), Fitton (Lancashire, 8" reflector) - "(Foley) 1800h -- slate
gray bluish on all of crater; blue at 1816h, fading at 1835h, no color
on floor. At 1949h brillinance reduced, eyepiece tested at 1959h with
result of elong. gray blur & afterward activity at reduced light level.
Blue again at 2013h. (Gannon) at 1851h saw red tint on S.rim (instru.),
neg. in white & filter lite till 2000h, (Peters) at S=P had impression
of large faint blink on S.side, diffuse till 2000h, then seeing
improved & saw darkish patch on S.wall -- darker in blue than red.
Craters on limb were normal to 2017h, neg. at 2058h & 2130h, (Farrant)
at 2000h, normal. At 2053h color in small area to W. of W. wall.
(Turner) at 2230h-2300h got neg. (Fitton) at 2330h got neg. in white,
seeing too poor for filters. Fitton & Farrant think obs. due to atm.
effects. (activity earlier & none later confirmed)." NASA catalog
weight= 5 (very good). NASA catalog ID #1398.
Interior bands were faint at 22:40 but sharper at 23:20.
Observer noted some blue spurious colour to the north of
Aristarchus but this had gone by 23:50.
Observer noted some variability in the brightness of Moltke
and Torricelli B. This observation has an ALPO/BAA weight of 3.
Observer noted some variability in the brightness of
Torricelli B and Moltke. This observation has an
ALPO/BAA TLP weight of 3.
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.
On 1981 Oct 12 at UT 00:00?(?) B.W. Chapman (12cm refractor,
Seeing II, transparency poor, Kingston-Upon-Thames, UK) found
that Mons Pico was brighter in red light than in blue.
Aristarchus for comparison was the same brightness in both
filters. ALPO/BAA weight=1.
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.
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-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.
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 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 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.
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 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.
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.
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.
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.
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.
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.
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.
"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.
Aristarchus 1970 Apr 22 UT 07:00
Observed by Thomas.
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 ?? 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.
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.
Aristarchus (Bartlett, 1965 Oct 12 UTC 02:15-20:25, 5 inch
reflector x280) - NASA catalog quotes "Nimbus was only a dark
violet hue". NASA catalog weight=4. NASA catalog ID #904.
ALPO/BAA weight=1.
On 1981 Oct 15 at UT06:03-06:51 D. Louderback (South Bend, WA, USA, 3"
refractor, seeing=1-2 and transparency=5) observed that the brightenss
of 4 sun lit bright spots differed in red and blue light. "Appeared as
a cross. the 2 points A & D on his sketch (index) were affceted. They
were 10 pts dimmer in red than blue. Not due to seeing as they did not
fluctuate (as did the seeing)." This report came from the Cameron 2006
catalog and had an ID No. of 156 and a weight=3. The ALPO/BAA weight=2.
On 2009 Apr 12 at UT 00:00 C. Brook (Plymouth, UK, 2" refractor, x25,
Edmund Optics filter No. 80 (blue) and No. 47 (light rose/purple))
noted that the rays of Proclus stood out better in light rose/purple
than in blue. Not just the rays crossing Mare Crisium. The ALPO/BAA
weight=1.
Aristarchus 1970 Apr 23 UTC 07:00
Observed by Thomas
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 1993 Dec 31 at UT 05:00-07:40 S. Beaumont (Cambridge, UK, 12"
reflector) "saw a patch of hazy light to NW (from c.p. alpha) at 0550
craters B & J shadow of alpha had not reached E wall yet, but at 0536
it did. Alpha > at 0550. Craters B & J to SE had faded, vanished at
0630. Hazy patch remained around peak, alpha low mainly to NE like a
comet's tail. Slightly reddish fringe to E wall. (shown in sketch)".
The above has been quoted in full from the Cmeron catalog because the
catalog desription is slightly ambiguous and any attempted summary
might make the description more unreliable. The cameron 2006 catalog
ID=470 and the weight=3. The ALPO/BAA weight=2.
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.
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.
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.
Atlas 1969 Aug 01 UT 03:36-04:00 Observed by Pither
(Nottinghamshire, England) NASA catalog reports: "Eng. moon
blink in crater at 0336h close to E. wall, NE of central
feature. Oval in shape & dirty brownish color & hazy. Started
fading at 0345h but may have been due to dawn, Neg results on
other features, (Apollo 11 watch)." 12" x450 reflector used.
NASA catalog weight=3. NASA catalog TLP ID No. #1195.
ALPO/BAA weight=3.
Gassendi 1966 Sep 03 UT 01:11-01:46 Observers: Moore (Armagh, N.
Ireland, 5 & 12" reflectors), Moseley (Armagh, N. Ireland, 10"
refractor), Corralitos Observatory (B.Middlehurst, Organ Pass,
NM, USA, 24" reflector), Cave , Gill (UK? 6" reflector x365),
"Eng. moon blink sys. detected red glows on c.p. & round it.
Independently seen by Cave. Not confirmed by Corralitos M.B."
NASA catalog ID#975, NASA weight=5. ALPO/BAA weight=4.
Aristarchus 1969 Aug 01 UTC 04:40-05:38 Observed by C. Pamplona
e J. Barbosa(Fortaleza, Brazil using 12" x235 and 5" x100
reflectors) - NASA catalog reports: "Enhanced area in SE wall,
no pulsation, no color. Usually NW wall is brightest. After
0538h NW region was brightest again, (Apollo 11 watch, indep.
confirm. ?)" NASA catalog weight=3. NASA catalog TLP ID No. #
1196. ALPO/BAA weight=2.
In 1963 Oct 05/06 at UT 23:35-00:45 Scarfe (Cambridge, UK, 36"
reflector, transparency: hazy - high cirrus) observed very strong
luminescence at 50% of the total light (recorded photo-electrically) at
Hydrogen alpha (656nm), Sodium-D (589nm) and Fe(RMT 15) 539.71nm,
542.97nm, 543.45nm, 544.69nm, 550.15nm, and 550.68nm. The Cameron 1978
catalog ID= and weight=5. The effect was especially strong in
Aristarchus at 545.0nm. The Cameron 1978 catalog ID=776 and weight=5.
The ALPO/BAA weight=5.
In 1963 Oct 05/06 at UT 23:35-00:45 Scarfe (Cambridge, UK, 36"
reflector, transparency: hazy - high cirrus) observed very strong
luminescence in Copernicus at 50% of the total light (recorded photo-
electrically) at Hydrogen alpha (656nm), Sodium-D (589nm) and Fe(RMT
15) 539.71nm, 542.97nm, 543.45nm, 544.69nm, 550.15nm, and 550.68nm. The
Cameron 1978 catalog ID= and weight=5. The Cameron 1978 catalog ID=776
and weight=5. The ALPO/BAA weight=4.
In 1963 Oct 05/06 at UT 23:35-00:45 Scarfe (Cambridge, UK, 36"
reflector, transparency: hazy - high cirrus) observed very strong
luminescence in Kepler at 50% of the total light (recorded photo-
electrically) at Hydrogen alpha (656nm), Sodium-D (589nm) and Fe(RMT
15) 539.71nm, 542.97nm, 543.45nm, 544.69nm, 550.15nm, and 550.68nm. The
Cameron 1978 catalog ID= and weight=5. The Cameron 1978 catalog ID=776
and weight=5. The 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.
Plinius 1889 Sep 13 UTC 23:00? Observed by Thury (Geneva,
Switzerland) NASA Catalog Event #265, NASA Weight=3 (Average)
Event described as: "Unusual black spot with intensely white 4"
border over CP. Normal aspect is 2 craters. #260 says that
Gaudibert saw same thing in Sep. - confirmed". References:
Nature 41, 183, 1890 (April). The ALPO/BAA weight=1, this is
probably perfectly normal.
Plato 1982 Sep 07 UT 0330-0430. K.P. Marshall (Columbia, 12"
reflector, seeing III) saw no craterlets on the floor of Plato,
but what he considered unusual was an extremely bright short
section of the north rim of Plato - far brighter than, any other
part of the rim, and only slightly less bright than Mons Piton.
ALPO/BAA weight=1.
Plato 1915 Apr 03 UTC 23:00? Observed by Markov (Russia) NASA
catalog describes observation: "Appearance of bright spots
that could even be seen in a 43mm (2-in) tube" 2" refractor
used. NASA catalog weight=2. NASA catalog TLP ID NO. #350.
ALPO/BAA weight=2.
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.
Aristarchus 1978 Nov 20 UTC 03:00-05:00 Observed by Foley (Kent, UK, no
spurious colour, Seeing Antoniadi II and transparency good.) -
colouration seen: very bright violet spot on the north west interior.
No brightness variations seen. The Cameron 2006 catalog ID=44 and
weight=. The ALPO/BAA weight=3. ALPO/BAA weight=2.
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.
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?
Triesnecker 1966 Jul 10 UTC 02:00-02:15 Observed by Allen (Cambridge,
England) and other observations by Corralitos Observatory (Organ Pass,
NM, USA). Described in NASA catalog as: "Faint illum. of a ridge in
shadow; faded quickly (in BAA judged dubious). Not confirmed by
Corralitos MB." 12?" refractor (x280) used at Cambridge and at
Corralitos 24" reflector. NASA catalog weight=1 (very low). NASA
catalog TLP ID No. #956.
On 1979 Dec 11 at 05:05-05:28 UT A. Crotts (Princton, NJ, USA, CCD
camera and spectrophotometer) "Spectral Photometer recording - digital
pics. With spectral slit. CED eff 2%." Cameron 2006 catalog ID=77 and
weight=5.
On 1979 Dec 11 at 05:05-05:28 UT A. Crotts (Princton, NJ, USA, CCD
camera and spectrophotometer) TLP detected in Mersenius : "Spectral
Photometer recording - digital pics. With spectral slit. CED eff 2%."
Cameron 2006 catalog ID=77 and weight=5. ALPO/BAA weight=4.
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 1940 Dec 25 at UT 10:00? Haas (New Mexico, USA, 12" reflector?)
observed the northern horn to be elongated by about 10'. The Cameron
1978 catalog ID=482 and weight=3. The ALPO/BAA weight=2.
On 1940 Dec 25 at UT 10:00? Haas (New Mexico, USA, 12" reflector?)
observed the southern horn to be elongated by about 10'. The Cameron
1978 catalog ID=482 and weight=3. The ALPO/BAA weight=2.
Southern Cusps 1912 Jun 17 UT 20:00 Observed by Stolyarenko (Russia)
"Sharply outlined edges of new moon easily extended in 25 deg band over
unlit part. S. horn larger than N. one" NASA catalog weight=1 (very
low). NASA catalog ID #340.
On 1989 Apr 09 at 00:00? R.Horton (N.Scituate, RI, USA, 6" reflector)
found Aristarchus (and Kepler) to be much less bright than Copernicus.
Photographs show this. The Cameron 2006 catalog ID=359a and the weight=
3. The ALPO/BAA weight=2.
On 1989 Apr 09 at UT 00:00? R. Horton (N. ScN. Scituate, RI, USA, 6"
reflector) took an Earthshine photograph that revealed Copernicus to be
brighter than Aristarchus and Kepler. Cameron comments that usually
Aristarchus is the brighter and thought it a bit odd because Copernicus
should have been less visible, being nearer the terminator3 The Cameron
2006 catalog ID=359a and the weight=5. The ALPO/BAA weight=2.
On 1989 Apr 09 at UT 00:00-04:45 D. Darling (Sun Praire, WI, USA, 11"
reflector, 3" refractor, S=9/10 and T=6) observed the central peak of
Tycho in Earthshine and that the crater "glowed". However Earthshine
was exceptionally bright tonight. The Cameron 1978 catalog ID=359b and
weight=3. The ALPO/BAA weight=1.
On 1980 Oct 12 at UT23:30 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x75, seeing 10/10) observed the crater to be glowing faintly
- photos showed it to be blue. Cameron 2006 TLP catalog ID=113 and
weight=3. ALPO/BAA weight=1.
In 1825 Apr 22 at UT0030 Argelander (England) and Gobel (Koburg,
Germany) saw the following in the vicinity of Aristarchus: "Points of
light in center. In low magn. appeared as a small star, somewhat
scintillating. At higher magn. became larger & diffused. (date 1824 ?
Ref. refers to a ref. dated 1824 -- If so age would have been 23rd"
Cameron 1978 catalog ID=107 and weight=5. ALPO/BAA weight=3.
On 1989 Apr 10 at UT01:30-02:00 D. Darling (Sun Praire, WI, USA, 12.5"
reflector, x64, seeing excellent) observed that Earthshine was not as
good as the previous night "~1/4 Cusps 1953 Apr 18 UT 21:00? Observed by Wilkins (Kent, England, 15"?
reflector) "Faint extension of the cusps. (high peaks in sunlight)."
NASA catalog weight=2 (low). NASA catalog ID 558.
Cusps 1953 Apr 18 UT 21:00? Observed by Wilkins (Kent, England, 15"?
reflector) "Faint extension of the cusps. (high peaks in sunlight)."
NASA catalog weight=2 (low). NASA catalog ID #558.