On 1982 Dec 18 at UT 15:00? Arsyukhin (Moscow, Russia, 3" reflector) found that the northern cusp was protruded onto the dark side as a blue thread. The Earthshine was brown in colour. The Cameron 2006 catalog ID=191 and weight=2. The ALPO/BAA weight=2.
On 1982 Dec 18 at UT 15:00? Arsyukhin (Moscow, Russia, 3" reflector) found that the southern cusp was protruded onto the dark side as as a blue thread. The Earthshine was brown in colour. The Cameron 2006 catalog ID=191 and weight=2. The ALPO/BAA weight=2.
Leibnitz Mountains 1955 May 24 UT 21:30-22:00 Observed by Firsoff (Somerset, England 6.5" reflector, x240, seeing = very good). "Changing lights over a period of time, lunar aurora? Beyond cusps were 2 bright pts. 1 was sparkling and dancing and weaker intensity. Then a faint beam detached itself & shot up vertically, becoming more intense but faded at the base. Total length @ 160 km. Endured for > 2 s. Due to telescope spider or lunar aurora?" NASA catalog weight=4 (good). NASA catalog ID #593.
On 1981 Jan 09 at UT 00:30-00:45 D. Darling (Sun Praire, WI, USA, 12.5" reflector, seeing=8/10, transparency clear, but Moon low at 7 deg above the horizon) found that despite Aristarchus being seen to be bright in Earthshine, it was not as bright as Menelaus and Manilius. Cameron 2006 catalog ID=121 and weight=1. ALPO/BAA weight=1.
On 1981 Jan 09 at UT 00:30-00:45 D. Darling (Sun Praire, WI, USA, 12.5" reflector, seeing=8/10 and the sky was clear - the Moon was at 7deg altitude though) saw that Manilius outshone Aristarchus - or was it that Aristarchus was especially faint tonight? Manilius could be seen even when the illuminated part of the Moon was in the eyepiece. The Cameron 2006 catalog ID=121 and weight=1. The ALPO/BAA weight=1.
On 1981 Jan 09 at UT 00:30-00:45 D. Darling (Sun Praire, WI, USA, 12.5" reflector, seeing=8/10 and the sky was clear - the Moon was at 7 deg altitude though) saw that Menelaus outshone Aristarchus - or was it that Aristarchus was especially faint tonight? Menelaus could be seen even when the illuminated part of the Moon was in the eyepiece. The Cameron 2006 catalog ID=121 and weight=1. The ALPO/BAA weight=1.
On 1941 Mar 31 UT 03:15 Barcroft (Madera, CA, USA, 6" reflector) observed Aristarchus in Earthshine - Haas thought it must have been unusually bright. The Cameron 1978 catalog ID=486 and weight=3. The ALPO/BAA weight=2.
On 1788 Dec 02 at UT 04:35 Schroter (Lillienthal, Germany) noted that Aristarchus was extraordinarily bright, like a star. The Cameron 1978 catalog ID=51 and the weight=4. The ALPO/BAA weight=3.
On 1983 Jun 14 at UT22:10-23:15 R. Mosely (Coventry, UK, 3" refractor, x38, seeing IV-V) observed a limb brightening near Olbers, though the cdrater itself was not visible in Earthshine. By 22:30 the glow seemed to spread a little vurther to the north. The ALPO/BAA weight=1.
On 1983 Jun 14 at UT22:10-23:15 R. Mosely (Coventry, UK, 3" refractor, x38, seeing IV-V) observed a limb brightening from the vicinity of Pythagoras to the north pole cusp. The ALPO/BAA weight=1.
Proclus C region 1985 May 23 UT 17:41 Photographed by Kolovos (observer from Thessoloniki, Greece, observing site near Bafra Serrain, Greece, 4"refractor, seeing excellent) "Observer took a series of expousres on a portable scope of the Moon. On one of them a very bright slightly elliptical spot was seen. Spot was very close to the Proclus C crater. Upon analysis it was claimed that the spot of light had rotated the direction of illumination of shadows in adjacent craters - however subsequent analysis casts doubt on this. Papers on this report were published in Icarus. Rast and Maley suggested that it was sun glint off a spinning US ex-military weather satellite that just by chance came across the field of view of the Moon a few tens of seconds around the time of the photographed flash. Was this a coincidence or not? If it were a satellite sun-glint then the satellite would have to be tumbling incredibly fast in order for the flash to be so sharp in the photograph - so the satellite explanation is not completely 100% confirmed." The Cameron 2006 catalog ID=273 and the weight=5. The ALPO/BAA weight=2.
Om 1990 Mar 01 at UT 00:59-02:20 D. Darling (Sun Praire, WI, USA, 3" refractor, x36) observed that Aristarchus could barely be seen, but at 02:15 UT it brightened by about two times. Note that brightening might refer to Lambert - it is worded in an ambiguous way in Cameron's catalog). The Cameron 2006 catalog ID=392 and weight=0. The ALPO/BAA weight=1.
Om 1990 Mar 01 at UT 00:59-02:20 D. Fryback (Madison, WI, USA, 8" reflector) observed that Lambert was a star-like point, but later saw it brighten up (02:15UT) by two times (note that this brightening might refer to Aristarchus - it is worded in an ambiguous way in Cameron's catalog). The Cameron 2006 catalog ID=392 and weight=0. The ALPO/BAA weight=1.
In 1949 May 02 at UT 03:30-04:00 Barcroft (Madera, CA, USA, 10" reflector, x96) observed in Aristarchus crater, in Earthshine, a dull glow -- silvery phosphorescence.This was not visible for 30 min prior. Cameron comments that this is a confirmation of Wilkins TLP from a few hours earlier? The Cameron 1978 catalog ID=519 and weight=5. The ALPO/BAA weight=2.
On 1971 Jul 26 at UT 21:40-22:05 daSilva (Paranaiba, Brazil, 13" refractor, x224, seeing=good and transparency=fair) observed two brilliant points in Aristarchus - the right one was the more brilliant of the two. The observer says that this was not a TLP, but is similar to other reports (Apollo 15 watch). The Cameron 1978 catalog ID=1300 and weight=1. The ALPO/BAA weight=1.
In 1965 Jul 04 at UT 03:53-05:59 Gridley, Welch (West Covina, CA, USA, 4.5" and 8" reflector, seeing=excellent), Albert (CA, 8" reflector, x375) and Emanuel (8" reflector) observed star-like flashes in Aristarchus crater. Cameron says this confirmed and that the date in MBMW is 7/3/65 which is local time = 4th UT also but is in error due to misreading of handwriting. The Cameron 1978 catalog ID=883 and weight=3. The ALPO/BAA weight=3.
Posidonius 1821 Apr 07 UTC 18:00? Observed by Gruithuisen (Munich, Germany) "Small bright crater in it was shadowless. Schroter also saw it shadowless several X" NASA catalog weight=4 (good). NASA catalog ID #87. ALPO/BAA weight=3.
1977 Apr 23 UT19:30-22:45 Foley (10.75" Newtonian and 4.5" refractor, seeing II, transpaency excellent) saw som every large variations in the brightness of Aristarchus whereas other features in Earthshine remained stable. Aristarchus was seen to be blue/violet. ALPO/BAA weight=2.
On 1985 May 24 at UT 21:01-22:40 P.W. Foley (Kent, UK, 12" reflector) observed that Aristarchus was very bright (varied) and had a strong (transient) red/rose colour and the crater floor was glowing. Detail was visible. Mobberley (Suffolk, UK) also found the floor of the crater to be "glowing". Photographs of Earthshine excellent. The Cameron 2006 catalog ID=274 and the weight=5. The ALPO/BAA weight=3.
On 2012 May 26 UT21:21 J. Moeller (Syracuse, NY, USA, using a Konica Minolta DIMAGE Z5 digital camera, f/7.1, 1/250 sec exposure, ISO-50, 69mm focal length, digital zoom x3) captured a hand held image of the Moon in daylight. On the SW limb of the dark side of the Moon a bright spot can be seen. This has a brightness comparable to that of Mare Serenitatis. There is also a fainter dark blurred marking further inside the dark side. ALPO/BAA weight=1.
On 1891 Nov 07 at UT=19:00 d'Adjuda of Lisbon, Portugal (seeing fair) whilst observing Aristarchus noticed that the crater appeared as very distinct luminous point in the dark. Cameron 1978 catalog ID=275 and weight=3. ALPO/BAA weight=1.
Proclus 1877 Mar 21 UT 20:00? Observed by Barrett (England?) described in NASA catalog as: "Brilliant illum. -- not from sun". NASA catalog weight=2. NASA catalog event ID=#188. ALPO/BAA weight=1.
On 1982 Dec 22 at UT 19:20-20:10 J-H Robinson (Teighmouth, Devon, UK, 10" reflector, x150, seeing=IV-V) could not distinguish between Messier and Messier A. The tail of these features was very bright - two telescopes were used. Moore (Selsey, UK, 12" reflector, seeing=III) could see Messier A but found Messier itself obscured - just see the west wall and thought that the comet like tail was unusual as it did not appear divided. The Cameron 2006 catalog ID=192 and weight=5. The ALPO/BAA weight=3.
Daniell 1983 Jun 18 UT 22:06-22:25) P.Madej (Huddersfield, UK, 77mm refractor, x83,x166, seeing II-III, transparency fair). Noted on the inside W eall a faint red rose like glow (with a diameter? about it). The red glow varied in brightness with a period of about 2 minutes. It looked somewhat brighter at x166. The glow was still visible when the observation ended at 22:15 ALPO/BAA weight=1.
Vallis Alpes 1983 Jun 18 UT 22:01-22:23 P.Madej (Huddersfield, UK, 77mm refractor, x83,x250, seeing II-III, transparency fair). After studying the whole length of this valley, the observer saw a change in "albedo" and a small change in colour of the valley floor near to the Plato end. This colour was not seen in a yellow Wratten 15 filter but was noted in a purple Wratten 35 filter, and was strong in a red filter. Also the crater Trouvelot was not seen at x250 with a x2 Barlow.Wratten 25. ALPO/BAA weight=1.
Alphonsus 1968 May 05 UTC 20:00 Observed by Farrant (Cambridge, England, 8" reflector, x220, Seeing: Good). "Did not see gray patch SE (ast. ?) of c.p. Noted W. (ast. ?) dark patch was invis. while S. one was seen easily, emerging from shadow. On 7th all seen easily, emerging from shadow. On 7th all 3 clearly vis. with the darkest one the invos. one on 5th." NASA catalog weight=3 (average). NASA catalog ID #1071.
On 1979 Sep 29 at UT10:00-12:00 S. Turner (Maryborough, Australia) observed a strong beacon like flash in white light that moved back and forth in the east wall of Plato (very bright) and Mons Pico. tried changing eyepiece and the field of view, but this wasn't the cause of the effect. A check at 11:07UT did not show the effect, but it was back again by 11:18UT being more pronounced at Mons Pico than the east wall of Plato. SSW of Mons Pico was also blinking slightly. At 11:32 the blinking effect was irregular 5-10 sec and this continued until 12:00UT. Cameron 2006 catalog ID=71 and weight=0 but she suggests atmospheric scintillation as a cause. ALPO/BAA weight=1.
On 1979 Sep 29 at UT10:00-12:00 S. Turner (Maryborough, Australia) observed a strong beacon like flash in white light that moved back and forth in the east wall of Plato (very bright) and Mons Pico. tried changing eyepiece and the field of view, but this wasn't the cause of the effect. A check at 11:07UT did not show the effect, but it was back again by 11:18UT being more pronounced at Mons Pico than the east wall of Plato. SSW of Mons Pico was also blinking slightly. At 11:32 the blinking effect was irregular 5-10 sec and this continued until 12:00UT. Cameron 2006 catalog ID=71 and weight=0 but she suggests atmospheric scintillation as a cause. ALPO/BAA weight=1.
Plato 1972 Jun 19 UT 21:40-22:30 Observed by S.A. Jones (Swansea, Wales, 12" reflector x150) and Moore (Selsey, England, 12.5" reflector x450) "Noted a bright area in the center. Moore noted nothing unusual & he tho't obs. saw one of permanent light patches" NASA catalog weight=0 (very low). NASA catalog ID # 1336. ALPO/BAA weight=1
Plato 1886 Sep 06 UT 19:00? Observed by Valderama (Italy?) "Streak of light on dark floor of crater in shadow. (sunlight between peaks on walls?)" NASA catalog weight=0 (most unlikely to be a TLP). NASA catalog ID #251. ALPO/BAA catalog weight=1.
On 1871 Nov 20 at UT 17:30-19:30 H. Pratt (UK) saw one of the most spectacular TLP obscurations that he had ever seen in Mare Frigoras. He observed a kind of haze around the north west (NE?) slopes of Plato. This effect was not seen elsewhere and all objects in Mare Frigoris were indistinct or veiled. By 18:30 the effect was modified and by 19:30 very little trace was seen. Ref. from Corliss.
Plato 1887 Feb 01 UT 18:00 Observed by Elger (England) "Ill-defined shadow of peaks of W.border-in contrast to sharpness of mts. outside it. Never seen before. Such phenomena occur on floor, but never on ramparts. (Drawing)." NASA catalog weight=4 (high). NASA catalog ID #254. ALPO/BAA catalog weight=1.
In 1824 Jul 04 at UT23:00? Emmett (England, UK) observed a star-like light on the rim (in the dark). The Cameron 1978 catalog ID=100 and the weight=3. The ALPO/BAA weight=2.
Plato 1916 Jul 8 UT 19:00? Observed by Markov (Russia) "Light on the shadow of the bands at the bottom (similar to #362)" NASA catalog weight=3 (average). NASA catalog ID #364. ALPO/BAA weight=2.
On 1972 Feb 23 at UT0010-0035 Fornarucci (Garfield, NJ, USA, 6" reflector, x250, seeing=fair and transparency=3.5). Shading usually visible west of it was not seen. Cameon comments that the albedo must have been at 5, where normally it is 4.5 and the nearby plain is 5). Cameron 1978 catalog ID=1322 and weight=2. ALPO/BAA weight=2.
On 1971 Jul 31 at UT 21:40 (18:40 local time?) Miranda (Plaui, Brazil, 4" Refractor, 80x, 160x, Moon 70deg in altitude) observed an intermittent and curious brilliance on top of a peak (with irregular reflection) north of Mons Hadley (5E, 27N). The Cameron 1978 catalog ID=1302 and weight=2. The ALPO/BAA weight=2.
On 1969 Mar 27 at UT 18:42-18:47 Ringsdore (England, 15" reflector, x350), Moseley (Armagh, Northern Ireland) and P. Moore (Selsey, UK) observed nothing unusual in Alphonsus at 18:40UT, but at 18:45UT Ringsdore saw a blurring. At 18:43UT Mosely saw a reddush-orange patch and this was confirmed by Moore. NNW of the central peak, Mosely got a blink, but Moore did not because of too much stray light. The colour was like Jupiter's red spot, but less pronounced. The Cameron 1978 catalog ID=1118 and weight=5. The ALPO/BAA weight=4.
Plato 1932 Apr 15 UT 06:57 Observed by A.V. Goddard & friend (Portland, Oregon, USA, 16" telescope, S=G steady) "Sudden appearance of a white spot like a cloud of steam (in appearance only), and in less than a minute it had spread in a NW direction, until it almost reached the rim of the crater" NASA catalog weight=4. NASA catalog ID #403. ALPO/BAA weight=4.
Copernicus 1932 Mar 16 UTC 18:45-19:30 Observed by Barker (Cheshunt, England, 12.5" reflector, x310) "Term. from Cop. to lat.20S was misty & hard to define. Rest was usual sharp definition. Mistiness cleared at 1930. Cleaned his eyepiece & prism but it persisted." NASA catalog weight=3 (average). NASA catalog ID #402.
On 1980 Jan 26 at UT21:35-22:25 Blair (Refrewshire, Scotland, 10" reflector, 83-276x, seeing=III-IV and transparency poor) discovered a bright spot on the north rim and through filters it "flashed" green, red and blue. Clouds interupted observing, but when they cleared the effect was still present. Other craters did not show this effect. Cameron catalog ID=83 and weight=4.
On 1993 Jan 02 at UT 17:42 A. Dollfus (Meudon, France, 1m aperture telescope used) detected evidence for a dust cloud in Langrenous crater using CCD polarimetry. The ALPO/BAA weight=5.
Gassendi 1967 Oct 13 UTC 19:17-20:00 Observers: Henshaw (Mansfield, UK, 8.5" reflector x112) and Corralitos Observator (Organ Pass, NM, USA, 24" reflector) "Phenomenon (brightening ?) nr. NW (ast. ?) lasting for 3s. Cont'd for 45m but nothing else unusual, (nr. Gass or in it?). Corralitos MB did not confirm." NASA catalog weight=3 (average). NASA catalog ID #1050.
Plato 1968 May 07 UTC 20:48-21:05 Observed by Farrant (Cambridge, England, 8" reflector x220) "Red color No. of landslip in W. wall seen in blink & vis. Vanished by 2105h. Had not returned at 2125. (Moore has wrong date in his extended catalog.)." NASA catalog weight=3. NASA catalog ID #1074.
Archimedes 1971 Aug 01 UT 22:00(?) (19:00 originally given probably local time) Miranda (Plaui, Brazil, 4" refractor, x80) observed two grooves going from east to west, broadening towards the west, across Archimedes. A drawing was supplied. Apparently this was the first time that this was ever seen. Cameron suggests rays? and also says that in fact a similar phenomenon reported before in neasrly the same position (Apollo 15 watch?). The Cameron 1978 catalog ID=1303 and weight=2. The ALPO/BAA weight=1.
South of Copernicus 1972 Feb 24 UT 19:30-20:00 Observed by McConnell (England, 6" reflector, x195, seeing=good) "White spot just S. of Cop. about same size as Copernicus H (@ 5km), (there is a bright area or mt. SW of Cop. H)." NASA catalog weight=1 (very low). NASA catalog ID 1323.
On 1994 Apr 21 at UT 06:00 W, Cameron (Sedona, USA) detected a reddiah colour on Pronontorium Laplace, This is TLP event No. 9 in the ALPO Clementine LTP program Nov 1994. The ALPO/BAA weight=2.
A.S.Williams of West Brighton, UK, using a 5.25" Calver, x150 and definition fairly good. Observer noticed that the Mare seemed covered with a close network of innumerable streaks, and spotted with countless numbers of light specks, so that it would hardly be possible to delineate them all in one night. The spots and streaks together must have numbered ~1000. The observer had never seen anything like the number of spots and streaks. Peirce A, was not at all easy to see and neighboring spots almost as bright made it difficult to distinguish which one was Peirce A. ALPO/BAA weight=3.
On 1982 Aug 01 at 00:00-01:00 K. Marshall (Medellin, Columbia, 12" reflector, seeing I-II) noted shading on the east floor of Plato that was apparently lighter than the rest of the floor and this was seen at both low and high magnifications. Foley notes that this was unusual. There were three craterlets visible on the floor - the central one was the brightest. Cameron 1978 catalog ID=178 and weight=3. ALPO/BAA weight=1.
On 1976 Apr 10 at 21:15-21:49UT S.Spencer (60mm refractor x60, seeing quite good) noticed a faint red glow at the south west wall of Gassendi covering a span of about 35 deg arc. The observer had some doubts about this because they were using a small telescope, but thought that they ought to report it, just in case. A BAA Lunar Section report. ALPO/BAA weight=1.
On 1985 May 30 at UT 20:10-23:54 P.Moore (Selsey, UK, 15" reflector) and at the same time Doherty (Sussex, UK, 15" reflector) observed a strangely bright and pink/red north rim of Aristarchus crater during UT20:20 and 20:36UT. The effect reduced between ~20:39 and 20:44UT. M.C. Cook (Frimley, UK) found the northern wall to have a red/purple colour but the effect vanished after 50 minutes. Cook also saw a "V"- like notch in the NW crater shadow and this appeared to be bigger than normal. G. North (Sussex, UK) saw a tinge of pink colour on the northern rim and a bit later a "ruby red" colour on the north-west wall - again this effect lasted 50 minutes. Moseley verified the colour. Finally M. Hather (Yorkshire, UK) suspected the north wall of Aristarchus to be blue in colour. Cameron suspects that this TLP is not spurious colour because it is in the wrong place. The Cameron 2006 catalog ID=276 and the weight=5. The ALPO/BAA weight=4.
On 1985 May 30 P.Madej (Huddersfield, UK, 77mm refractor, x111 and x250, seeing II-III, transparency good) whole spectrum of colours seen on the central peak area, visible in both eyepieces, and was more prominent at the higher magnification. Not aware if the observer checked for this effects on other terminator peaks? xALPO/BAA weight =1.
On 1991 Jan 26 at UT 23:38-23:50 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x159 and 3" refractor x90, seeing 5/10, transparency 3/6) found that Aristarchus was brighter through a red filter than through a blue filter on its western wall. He checked Aristarchus in two telecopes and obtained the same result. The Cameron 2006 catalog ID=419 and the weight=4. The ALPO/BAA weight=3.
Aristarchus 1975 Dec 14/15 UT 17:05-00:30 Observed by Foley (Dartford, England, 12" reflector, S=II) and Moore (Sussex, UK, 15" reflector x250 S=IV) and Argent and Brumder (Sussex, UK). In early sunrise conditions, W. wall was less brilliant than usual -- matched only by Sharp, Bianchini, & Marian. Extraordinary detail could be seen on this wall. Also noted intense & distinctly blue color entire length of W. wall. 3 others corroborated detail, but not color. Moore found things normal & saw Aris. brightest at 2030-2125h tho Argent & Brumder made it < Proclus" NASA catalog weight=4. NASA catlog ID #1422. ALPO/BAA weight=1.
On 2013 Apr 22 UT 01:39-02:37 P. Zeller (Indianapollis, USA, 10" f/4 reflector, x200, seeing 6, Transparency 3 - scattered cirrus) observed visually (depicted in sketch) the two closely spaced NW wall dark bands) to have a rusty-red hue. The colour of these bands did not change over the period of the observing session. Images were taken, but resolution and image S/N is not sufficient to resolve separate bands here, or to detect colour. The ALPO/BAA weight=1.
On 1981 Aug 11 at UT21:05-21:36 G. North (England, seeing=poor) detected, in green light, a darkening on the floor of Plato. This effect was not seen elsewhere. J-H Robinson (Teighmouth, Devon, UK) detected on the SSE rim (inner and beyond) a triangle that appeared hazy in a wide range of filters at 21:05UT. However at 21:36UT it was only hazy in green and blue light. No similar effect was seen elsewhere. The Cameron 2006 catalog ID=150 and weight=5. The ALPO/BAA weight=3.
In 1934 Feb 25 at UT 18:30 Rawstron (USA?, 4" refractor, x250, S=6/12) observed in Pico B: "A large patch of haze appeared & drifted off across the mare in same direction as haze from Pico (white patch). It was obs. on 20 other occasions. Drawing". The Cameron 1978 catalog ID= 410 and weight=3. The ALPO/BAA weight=2.
On 1984 Nov 05 at UT18:00 Marshall (England) noted that there was no normal brightening on the floor just next to the southern most craterlet. The Cameron 2006 catalog ID=251 and the weight=2. The ALPO/BAA weight=1.
On 1994 Apr 23 at UT02:41 D. Fryback (Madison, WI, USA) observed a starlike flash in Alphonsus crater. The ALPO/BAA weight=2.
On 1994 Apr 23 at UT 03:30 the US Navy Clementine Spacecraft, in orbit around the Moon, obtained images of the Cobra Head region of Aristarchus crater that suggested a ~15x colour ratio increase (0.4 microns / 1.0 microns) in comparison with images obtained on 1994 Mar 03. This was presented as a poster paper 18.04 at AAS 31st DPS meeting. However it was later suggested that this was due to incorrect radimetric calibration procedures being followed. The ALPO/BAA weight=1.
Aristarchus 1965 Nov 06 UTC 03:20-03:50, 05:50 Observed by Bartlett (Baltimore, MD, USA, 3" refractor x300, S=6, T=5) "Strong blue-viol. glare on E. & NE wall; dark viol. hue in nimbus. (absent at 0320-0350. Listed as 11/8/55 in both ref. 210 & MBMW, but should be 1965). NASA catalog weight=4, NASA catalog ID #911.
In 1950 Aug 25 at UT 10:55 T.Saheki (Osaka, Japan) observed a stationary yellow-white flash on the Moon of duration 0.2 sec and mag 6.5. Cameron suggests that this was a meteor. The Cameron 1978 catalog ID=536 and weight=0. The ALPO/BAA weight=1.
On 1985 May 31 at UT 20:23-22:00 G. North (Sussex, UK, turbulent seeing) found Torricelli B at 20:23 to be mauve in colour and to be very bright. However the colul had gone by 20:29UT. "Varied in albedo 2s then image blurred at 5-10s (atm) at 2034 became pink). At 21:35UT M. Mobberley (Suffolk, UK) found a white patch in the crater centre and a mag 8 flash was seen (confirmed independently by a 2nd observer ~ 113km away)- there was no shadow. At UT 20:30 P.W. Foley (Kent, UK, 12"reflector, seeing excellent) found no colour, but the brightness was changiong and he confirmed the bright patch on the crater's floor, variable 22:15-22:25UT, "then expanded over rim". The Cameron 2006 catalog ID=277 and weight=5. the ALPO/BAA weight=4.
On 1788 May 17 at UT 21:00 Schroter (Lilleanthal, Germany, 210x reflector) observed small depression, 1, near Aristarchus to be a bright spot, similar to Cameron 1978 catalog ID report #45. The Cameron catalog ID=48 and the weight=4. The ALPO/BAA weight=2.
NE of Philolaus 1948 May 20 UT 22:00-22:15 Observed by Baum (Chester, UK, 4.5" refractor) A distinct reddish tint suddenly appeared to the NE of the crater, and persisted for 15 min, before rapidly fading away. NASA catalog weight=3. NASA catalog ID #505. ALPO/BAA weight=3.
On 1982 Dec 27 at UT 23:00 M. Price (Camberley, Surrey, UK, Seeing=III and transparency=good) observed that Piazzi-Smyth was brighter than Mon Piton at 23:00. Photographic atlas was checked to verify that this was abnormal. The Cameron 2006 catalog ID=193 and weight=4. The ALPO/BAA weight=2.
On 2004 May 02 at UT03:24 M. and L. van Son (Bremerton, WA, May 1st 7:24PM PST) saw a naked eye flash on the Moon. The observers were glancing up at the Moon in daylight when they saw a bright white flash (observer and his wife together) in the upper/mid Mare Serenitatis region, west of the crater Posidonius. "Larger than how Venus appears". "It was a quick flash like white, intense lightning. I'm not sure how to report degrees of arc but if the face we see is 900, and we start from the east then the flash occurred about 225 arc seconds to the west. This was observed by the naked eye, with clear skies between us and the moon." The observers checked for signs of aircraft vapour trails but could not see any. There is a possibility that it could have been sun glint from an Iridium satellite, but this needs to be checked out and usually these last longer than the observed effect. It would be useful to obtain whole Moon images under the same illunination and libration so that we can judge this observation properly. The ALPO/BAA weight=4.
Herodotus 1965 Jun 11 UTC 21:35-21:40 Observed by Porta, Garau (Mallorca, Baleares, 4" refractor x250) "Red glow in crater at 2140, then clouds stopped obs. After clouds, floor was abnormal rose color" NASA catalog weight=5. NASA catalog ID #879. ALPO/BAA weight=4.
On 1978 Mar 21 at UT 20:57 an Unknown observer observed a TLP in Aristarchus crater. The details for this report are still being looked up in the archives. In view of the uncertain details this TLP has been given an ALPO/BAA weight of 1.
On 1994 Apr 24 at UT 03:50 R. Manske (Waunakee, WI, USA) found that the Cobra Head appeared to have an obscuration on the top eastern half. The ALPO/BAA weight=2.
Colour seen between Aristarchus and Herodotus by P. Moore and G. North. ALPO/BAA weight=3.
Lichtenberg 1966 Jun 02 UTC 03:05-03:35 Observed by Schneller (Cleveland, Ohio, 8" reflector, slit spectrascope) "Red glow on W. wall (Schnller thinks this is "normal" reddening at SR; however, these vary according to Ricker), (This rep't is the only positive one from alert sent out to observe for J.Green's tidal predictions, See list of neg. obs.)" NASA catalog weight=3 (average). NASA catalog ID #944
Aristarchus 1966 Jun 02 UTC 04:06-04:20 Observed by Jaeger (Hammond, Indianna, 6" reflector) "Brownish-yellow edge on ? rim. 2 other obs. this site saw nothing unusual." NASA catalog weight=2 (low). NASA catalog ID #945.
LeCroy Jr. and Sr. (Springfield, VA, 4.5" reflector, x75, x300, S=3, T= 4) observed the following in the Aristarchus and Herodotus region: "Both were fused together as an oval & had a bluish cast on the E.rim. In W#25 filter it was white. At 0100h albedo decreased from 10+ to 9.5 & more detail could be seen. Separation of the 2 craters began to be seen at 0007h, details much brighter, incl. c.p. in Aris. @ 0110h main brightness & blue tint shifted to N. rim. At 0116h the SW rim was brightest & no color. At 0122h ray was brightest & no color. At 0122h ray had decreased in length & more details seen in oval. At 0123h ray was broken & smaller, becoming very small at 0125h & at 0126. The knob was gone & the edges not bright any more. Albedo=9. Sketches. (Seeing variations meas. were 1/2s in length so LTP variations not due to local atm. cond. Alt. = 65 deg". The Cameron 1978 catalog ID=1416 and weight=3. The ALPO/BAA weight=3.
Vieta 1923 Sep 23 UTC 19:00? Observed by Cernov (Russia, 2 refractors? x94?) "Both dark spots merged together even with 94x magnification. (due to libration &/or seeing?)" NASA catalog weight=1 (low). NASA catalog ID #389.
Marius 1881 Jan 13 UTC 20:00? Observed by Williams (England?, 5.5" reflector) "Speck of light in crater". NASA catalog weight= 3 and catalog ID #220. ALPO/BAA weight=2.
On 1994 Apr 24 UT08:15 A.T. Brakel (ACT, Australia) noticed that Mare Frigoris appeared darker than the day before. This was during a Clementine watch. The ALPO/BAA weight=1.
Gassendi 1972 Feb 27 UT 23:15-00:10 Observed by A.Kemp (Cheshire, UK, 8.5" reflector x286) "Suspicion of blink between Gass. c.p. & Gass A. Clouds prevented confirm. Hedley-Robinson didn't see anything unusual earlier (20:00-20:20)." Note that the duration of the event, or indeed precise UT at which it was seen is not given. NASA catalog weight=1. NASA catalog ID #1324. ALPO/BAA weight=1.
On 1985 Sep 27 at UT 20:55 M. Mobberley (Suffolk, UK) found that the brightness of Torricelli B varied and starlike points seen in the crater. There is no Cameron 2006 catalog entry for this TLP report. The ALPO/BAA weight=2.
Aristarchus 1966 Jun 03 UT 01:00-01:45 Observed by Gordon (2), Delano (Ackerman, PR?, 5" reflector / Massachussets, 3" (x92) & 10" reflector T=4) "Deep blue color on N. wall. S.part of crater was brownish, (not on alert). Delano saw E.wall bright spot unusually bright, confirm, ?" NASA catalog weight=5. NASA catalog ID #947. ALPO/BAA weight=3.
On 1980 Aug 25 at UT06:55-07:10 Bartlett (Baltimore, MD, USA, 4.5" reflector, x40-150, seeing=4 and transparency=4) found the west wall bands of Aristarchus to be faint initially and at 07:00 a pale red colour appeared suddenly (and lasted for 2 minutes) on the inner south east wall, and then into south west BS to the west BS. "BS" meaning in Bartlett's notation a bright spot. There was no violet glare this time. Cameron 2006 catalog ID=106 and weight=4. ALPO/BAA weight=3.
Timocharis 1955 Jun 4-5 UT 23:30-00:00 Observed by Firsoff (Somerset, England, 5" reflector x70, seeing=poor) "Bright in red filter" NASA catalog weight=4 (high). NASA catalog ID #595.
Aristarchus 1973 Jun 15 UT 06:12-06:21 Observed by Bartlett (Baltimore, MD, USA, 3" refractor x54, x100, x300, x360, S=3, T=3) "Pinkinsh-red glow on F., wall -- weher he usually sees the violet glare. (TLP albedo=7?, normal=5?, nearby plain=1?). All along rim nr. crest & went over EWBS. Wanted to compare a bright spot on Lyell with Aris. wall brighteness. At 0612h pink glow changed to a rust-brown, fading rapidly & gone at 0615h. First time he had ever obs. a red glow. (in 20 yrs)." NASA catalog weight=4 (high). NASA catalog ID #1369.
Aristarchus 1969 Apr 01 UT 18:35 Observed by Kozyrev (Crimea, Ukraine, 40" reflector). "Spectrograms of an unusual red spot on W. slope at ?=.405, eta=.680. Spot = 1-2 km in diam. Molecules identified were N2 & C2. Later thru clouds crater was bluer in Corralitos (New Mexico) MB (confirm. of activity at Ariz. ?)." NASA catalog weight=5. NASA catalog ID #1119. ALPO/BAA weight=5.
On 1984 ??? ?? at UT11:00-12:00 Jean Nicolini (Campinas, Brazil) saw a daylight TLP in Aristarchus crater. The ALPO/BAA weight=1.
Aristarchus 1972 Jun 25 UTC 22:42-22:51 Observed by Quindeau (8deg 35' E, 51deg 25' N, 60mm refractor) "Bright point at NE wall of crater". Ref: Hilbrecht & Kuveler, Earth Moon & Planets, Vol 30, pp53-61 (1984).
Aristarchus 1959 Mar 24 UT 02:24-02:35 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x180, S=3, T=5) "Strong blue & blue-viol. gl. on E.wall, EWBS, SWBS with intermittent display. At this time he noted in his 5-in L a total disappearance of viol. gl. & reappear. 1 min. later. Altogether, found 4 such occurences in his records, in '54, '57, ' & '59."NASA catalog weight=4. NASA catalog ID #716. ALPO/BAA weight=2.
eclipse an unconfirmed impact flash on the Moon. The ALPO/BAA weight=3.
On 1938 May 14 at UT 05:00-09:25 deWitt (Nashville, Tennessee, 12" reflector) observed during an eclipse the fading of the dark spot in Riccioli to be pronounced. Cameron says that the mid eclipse was at 03:39, photos?. Cameron 1978 catalog ID=436 and weight=3. ALPO/BAA weight=2.
On 1985 Sep 28 UTC 20:54-23:52 P.W. Foley (Suffolk, UK) found (actually before 20:54 UT) brightness variance in Torricelli B. J.D. Cook (Frimley, UK) observed a brief blue coloured patch somewhere in the Torricelli B region, but could not pin it down precisely. At 22:50UT M.C. Cook (Frimley, UK, 30cm reflector, seeing III - occasionally V, transparency moderate to good) Found the crater to have an elongated appearance (in SSW-NNE direction) in white light, similar to the previous night. A bright elongated spot was seen on the NNE floor, close to where the wall should be. Not able to define the rim. There was a very dark surrounding area to the crater, similar to what it was on the previous night (roughly 1/4 brightness of Censorinus). 23:04UT brighter in yellow, then red, then blue. At 23:10 it was seen that blue filter dulled the crater - this was odd because both Censorinus and Proclus were brighter in blue, which is what he would normally expect. At23:15 UT Censorinus was brighter in blue, then yellow then red filters and some orange spurious colour seen to the south of Censorinus. At 23:23UT no spurious colour seen on Proclus or Censorinus. 23:46UT Torricelli B elongated as before, but a very faint ray might have been seen to the south west of the rim. This report is not in the 2006 Cameron catalog. The ALPO/BAA weight=3.
eclipse an unconfirmed impact flash on the Moon. The ALPO/BAA weight=3.
On 1881 Dec 05 at UT 17:09 Johnson observed a dark lunar eclipse. Aristarchus was seen as a white spot in the coppery disk and continued so. Cameron comments that this is the normal apeparance in an eclipse? The Cameron 1978 catalog ID=226 and the weight=0. The ALPO/BAA weight=1.
Aristarchus 1959 Mar 24 UT 04:35-05:15 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x180, S=3, T=5) "Strong blue & blue-viol. gl. on E.wall, EWBS, SWBS with intermittent display. At this time he noted in his 5-in L a total disappearance of viol. gl. & reappear. 1 min. later. Altogether, found 4 such occurences in his records, in '54, '57, ' & '59." NASA catalog weight=4. NASA catalog ID #716. ALPO/BAA weight=2.
On 1994 Apr 25 at UT11:08 B. Soulsby (Australia) found a darkening on the north floor of Copernicus crater. The ALPO/BAA weight=1.
In 1954 Jan 19 at UT 03:00 Porta (Mallorca, Baleares, Spain, 3" refractor, x50) observed the following during a total lunar eclipse: "3 brilliant yellowish-white spots between Picard & Peirce. Phosphor. light distinguished easily against gray-green background of mare. Irreg., intermittent. Did not perceive them all dur. totality. Next day had impression that all of area was less clear & lightly veiled.". The Cameron 1978 catalog ID=561 and weight=3. The ALPO/BAA weight=2.
40.5W, 45.7N 1965 Nov 09 UTC 04:59 Observed by McCord (Mt Wilson, CA, USA, 60" reflector + spectrograph) "Line depth anomaly, low compared with 23 other areas". NASA catalog weight=5 (very high). NASA catalog ID #912.
On 1893 Sep 25 at UT 21:00? Gaboreau (Paris, France), saw a shaft of light projecting from the Moon. Cameron 1978 catalog ID=281 and weight=0. ALPO/BAA weight=1.
On 1981 Dec 12 at UT 00:31 P. Madej (Huddersfield, UK) saw some flashes between Plato and Mons Pico. The cameron 2006 catalog ID=160 and weight=3. The ALPO/BAA weight=2.
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 1956 Dec 19 at UT 00:00? an unknown observer apparently saw a TLP somewhere on the Moon. Cameron gives the reference for this as an unnamed AGU meeting. The Cameron 1978 catalog ID=659 and weight=0. The ALPO/BAA weight=1.
On 1977 Oct 28 UT 19:25 V.M. Chernov (Soviet Union) observed that Copernicus was brighter than normal i.e. brighter than Kepler but less bright than Aristarchus. In January and February 1977 both Copernicus and Kepler were of the same brightness. The ALPO/BAA weight=1.
Plato 1869 Aug 23/24? UTC 23:00-01:00? Observed by Gledhill? (Halifax, England, 9" refractor) Group I of craterlets (as designated by several famous obs. before) exhibited notable illumination, accompanied by a single light on a distinct spot. (if obs. similar to Ap 1870 obs. then date =Au 23-24). NASA catalog weight=2 (low). NASA catalog ID #162.
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 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.
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 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.
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.
Ptolemaeus 1825 UT 23:45 Observed by Schwabe (Germany?) "Bright spot" NASA catalog weight=4 (high). NASA catalog ID #108. ALPO/BAA weight=3.