On 1966 Sep 09 at UT 21:00-21:30 Cave (England, UK, 6" reflector, x364, S=F) observed that the flor of Wargentin was a very dark gray, two shades darker (on scale of 1-10) than the floor of Nasmyth and nothing to be seen on it even along the ridge. A drawing was made. The Cameron 1978 catalog ID=976 and weight=3. The ALPO/BAA weight=2.
Near Gassendi 2003 Aug 23 UT 09:00 Observed by Weeks (USA, 88deg 33' W, 22deg 33' N, 20cm reflector) "Observation period ~30 min, terminator straight down middle of Gassendi, very bright spot seen glaring on the dark side ~2-3 Gassendi diameters away (SW or NW?). Intense glare unlike anything seen on Moon before. Spot did not brighten or fade. The ALPO/BAA weight=2.
Mercurius E (76E, 48N) 2004 Aug 11 UT 18:28:27 Takamura_Y (Ogawamura Observatory, 137:59:13E, 36:39:34N) observed a 9th magnitude impact flash. This was verified by 2 other observers elsewhere in Japan. The ALPO/BAA weight=1.
Grimaldi 1938 Mar 28 UTC 09:30 Observer: Firsoff (Glastonbury, UK - 6" reflector) - Slight greenish colour - {Note the UTC given in the NASA catalog is 09:30 which is in daylight here in the UK - possibly the catalog is wrong, else the observer was observing in daylight, but worth checking out just in case}. NASA catalog ID No. #433 and NASA weight=4 (good).
In 1920 Mar 22 at UT 17:00? an unknown observer in England noted an illumination on the dark side of the Moon. There was also some aurora on Earth at this time. The Cameron 1978 catalog ID-377 and weight=1. The ALPO/BAA weight=1.
South Cusp 1956 Mar 14 UT 19:00 Observed by Firsoff (Somerset, England, 5" reflector) "Twilight at S.cusp traced 640 km beyond cusp. No trace of twilight at N. pole" NASA catalog weight=4 (good). NASA catalog ID #635.
Mare Crisium 1973 Apr 05 UT 18:40-19:30 Observed by an unknown observer (Hungary), Hitchens (Lincolnshire, England, 11" reflector, Seeing=poor) and Peters (Kent, England, 8" reflector, Seeing=poor) "Saw a bright strip that extended deep into the dark side. Did not see it in May or June at same phases. Alignment same as E. boundary of M. Cris. Eng. Obs. at same time noted nothing." NASA catalog weight=1 (very low). NASA catalog ID #1364.
On 1990 Apr 27 at UT20:00-20:30 P. Mugridge (Surrey, UK) observed a bright light "sometimes 3 lights in form of triangle" in Oceasnus Procellarum (56W, ~25N), roughly mid way between Schroter's Valley and Briggs. "Haze surrounds as a mist or fog. poss. < at end of obs." Cameron comments that this may have been as a result of contrast in the strong Earthshine. Foley even contemplates if it was a misidentification of Aristarchus. Cameron comments that it is probably not due to terrestrial atmosphere. The Cameron 2006 catalog ID=401 and the weight=1. The ALPO/BAA weight=1.
Bright point seen near Plato. A much brighter one was near Aristarchus. Apparently seen by both Schroter and Bode. The Cameron 1978 catalog ID=43 and weight=5. The ALPO/BAA catalog weight=3.
On 1788 Apr 09 UT 20:00-21:00 Schroter (Liienthal, Germany) observed a bright spot 26" N of Aristarchus rim. Glimmering point became nebulous in Herschellan telescope at 161x. Changes were seen and it was brighter than Aristarchus. The was a confirmed observation by Schroter and Bode? The Cameron 1978 catalog ID=42 and the weight=5. The ALPO/BAA weight=4.
On 1969 Jul 18 at UT 03:53-04:21 Tungside? (CA, USA, 8" reflector) saw a blue flash in Aristarchus crater. Apollo 11 watch. The Cameron 1978 catalog ID=1156 and weight=3. The ALPO/BAA weight=2.
On 1969 Jul 18 at UT 04:16 Harris (Torrence, CA, 12" reflector) saw Kraft brighten at this time. Apollo 11 watch. The Cameron 1978 catalog ID=1156 and weight=3. The ALPO/BAA weight=2.
On 1969 Jul 18 at UT 03:53-04:21 Kohlenberger (Fullerton, CA, 4.5" reflector), Harris and Bell (Torrence, CA, 12" reflector) saw a 65km long limb brightneing between Grimaldi and Aristarchus, a third of the way from Aristarchus. The Cameron 1978 catalog ID=1156 and weight=3. The ALPO/BAA weight=1.
On 1973 Apr 06 at UT19:34-19:40 E. and C. Moore (England?, UK) and Hitchens (Lincolnshire, UK, 11" reflector) observed the following in Aristarchus crater: "Unusual brightness . Att'n drawn from occultation. Had a bright pt. of mag. 7 as if slightly defocussed star, yellowish in color on NE (IAU?) rim. Brightened & expamded. Later scintillate. Wife called, each idep. drew same phenom. Hitchens also saw glowing in same time period (indep. confirm.)". The Cameron 1978 catalog ID=1365 and weight=5. The ALPO/BAA weight=3.
On 1991 Apr 18 at UT 02:00-03:02 D. Spain (Fairdale, KY, USA, 3.5" reflector, S=6/10) could only see Aristarchus using averted viion. K. Herzog (Racine, WI, USA, 6" refractor, x38) observed Aristarchus to cycle through glowing and fading down to Earthshine brightness in a 3 minute cycle, but they could niot see Copernicus, Kepler or Tycho in Earthshine. W. Dembowski (USA) obtained photographs but these did not reveal anything unusual. The Cameron 2006 catalog ID=422 and the weight=1. The ALPO/BAA weight=1.
On 1965 Aug 01 at UT 05:00 Welch (Table Mountain, CA, USA, 6" reflector, seeing=excellent) observed some star-like flashes in Aristarchus in ashen light. Cameron says 7/31/65 in MBMW=local time = 6/1/65 in UT. The Cameron 1978 catalog ID=886 and the weight=2. The ALPO/BAA weight=2.
Bright point seen near Plato. A much brighter one was near Aristarchus. Apparently seen by both Schroter and Bode. The Cameron 1978 catalog ID=43 and weight=5. The ALPO/BAA catalog weight=3.
Bright point 26" N of Aristarchus rim. Resembled one near Plato but less conspicuous. The was a confirmed observation by Schroter and Bode?
On 1877 Jun 15 at UT 20:00 Birt (England, UK) observed a bright spot east of Picard. The reason why this was regarded as a TLP, accoridng to Cameron was that it was supposed to be faint or invisible. The Cameron 1978 catalog ID=193 and the weight=3. The ALPO/BAA weight=3.
On 1965 Aug 02 at UT 03:57-03:58 Bornhurst (Monterey Park, CA, USA, 10" reflector, x240, S=5) observed some star-like flashes in Aristarchus in ashen light. The Cameron 1978 catalog ID=887 and the weight=3. The ALPO/BAA weight=2.
On 1969 Jul 19 at UT 03:53-04:19 Harris (Torrence, CA, USA, 12.5" reflector), Bell (Duarte, CA, USA, 4.5" reflector), and Miller (Ojai, CA, USA). "Harris saw 20 brightenings or light flashes, lasting fr, 1/2 to 3s at 03:53:56 (1/2s), 03:54:19 (1s), 03:54:55 (2s), 03:55:06, 03:56:54, 03:56:56, 03:58:37, 03:59:58, 04:07:28, 04:15:00, 04:16:02, 04:16:45, 04:20:29, 04:21:14. First 4 were confirmed by Bell, Harris also saw 100 mi(160km) long limb brightening (blue) between Aris & Grimaldi, due W. of Aris., brighter than Aris. At 04:14 saw the brightening 1/2 way between Aris. & Grim. as pinkish or orange. Miller at 0417h saw a star-like pulse in W. (IAU?) rim of Grimaldi. (confirm. of Harris'04:16:45 obs. ? Apollo 11 watch)." The Cameron 1978 catalog ID=1161a and weight=3. The ALPO/BAA weight=3.
On 1969 Jul 19 at UT 03:53-04:19 Harris (Torrence, CA, USA, 12.5" reflector), Bell (Duarte, CA, USA, 4.5" reflector), and Miller (Ojai, CA, USA). "Harris saw 20 brightenings or light flashes, lasting fr, 1/2 to 3s at 03:53:56 (1/2s), 03:54:19 (1s), 03:54:55 (2s), 03:55:06, 03:56:54, 03:56:56, 03:58:37, 03:59:58, 04:07:28, 04:15:00, 04:16:02, 04:16:45, 04:20:29, 04:21:14. First 4 were confirmedby Bell, Harris also saw 100 mi(160km) long limb brightening (blue) between Aris & Grimaldi, due W. of Aris., brighter than Aris. At 04:14 saw the brightening 1/2 way between Aris. & Grim. as pinkish or orange. Miller at 0417h saw a star-like pulse in W. (IAU?) rim of Grimaldi. (confirm. of Harris'04:16:45 obs. ? Apollo 11 watch)." The Cameron 1978 catalog ID=1161a and weight=3. The ALPO/BAA weight=3.
Hipparchus 1972 Mar 19 UT 21:07-21:29 observed by Schnuckel (52.5N, 13.8E, 60mm refractor) "Two sudden white brightenings in the West wall approx 7 magnitude. First was at 21:07 UT and the second was at 21:29UT. Both lasted approximately 1 sec in duration." - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 1983 Sep 11 at UT 23:52 K.P. Marshall (Columbia, 12" reflector, x268, seeing II), whilst sketching the crater Janssen noticed a tenuous red patch on the southern junction of the valley which joins Fabricius to A. Nothing resembling this found on nearby areas. The ALPO/BAA weight=1.
On 2010Apr18 at UT 20:45-21:00 P. Grego (St Dennis, UK, 17" reflector - first practice run) observed that Aristarchus in Earthishine was the brightest that he had seen it before. The effect had faded to normal in the next 15 minutes though. "The bright spot was initially thought to be part of the wall of Aristarchus, but on closer examination the spot was probably the crater’s central peak. At around this time I estimated the brightness of the peak to be around magnitude 8, but this is a poor estimate as no suitable comparison stars in the immediate vicinity of the field of view were to be seen. Aristarchus’ outline was visible, as was a clearly defined sweep of brightness to its west (presumably the high albedo markings southeast of Herodotus) and another illuminated area to the north of Aristarchus (presumably the Vaisala area), and a small illuminated patch on the eastern flanks of Aristarchus. No other areas of the Moon in earthshine appeared to be as bright as these markings, and there were certainly no other clearly- defined spots as brilliant as the one that lay in Aristarchus. A watch was kept until 22:00 UT, when the Moon went out of view behind a tree. During this period it appeared that the spot was becoming less bright and less clearly-defined, although the other albedo markings in its vicinity remained visible; this may have been a consequence of the Moon’s diminishing altitude. ALPO/BAA weight=1.
On 1969 Jul 19 at UT 06:30 Whelan (Wellington, New Zealand) observed a pulsating glow in Aristarchus crater, extending towards the north. The Cameron 1978 catalog ID=1162 and weight=2. The ALPO/BAA weight=2.
Bright point seen near Plato. A much brighter one was near Aristarchus. Apparently seen by both Schroter and Bode. The Cameron 1978 catalog ID=43 and weight=5. The ALPO/BAA catalog weight=3.
Bright point 26" N of Aristarchus rim. Resembled one near Plato but less conspicuous. The was a confirmed observation by Schroter and Bode?
On 1965 Aug 03 at UT 04:18-04:24 Bornhurst (Monterey Park, CA, USA, 10" reflector, x240, S=F-G) and Leasure and Emanuel (Whittier, CA, USA) observed some star-like flashes in Aristarchus in ashen light (confirmed). The Cameron 1978 catalog ID=888 and the weight=5. The ALPO/BAA weight=4.
On 1965 Oct 01 at 04:00UT an unknown observer saw a TLP (feature name not given in the Cameron catalog - nor a description or reference). The Cameron 1978 catalog ID=897 and weight=1. The ALPO/BAA weigh=1.
On 1968 Jun 01 at UT 21:00? Kozyrev (Crimea?, Soviet Union) Gas luminescence seen in Aristarchus crater. The Cameron 1978 catalog ID=1075 and weight=3. The ALPO/BAA weight=3.
On 1969 Jul 20 at UT 0530-0540 Younger and Byl (Victoria, BC, Canada, 48" reflector) saw a fuzzy brightening near Aristarchus of less than 0.5 minute of arc diameter (Apollo 11 watch). The Cameron 1978 catalog ID=1171 and weight=4. The ALPO/BAA weight=2.
Proclus 1969 Jul 20 UT 03:55-04:15 Observed by Gergoulis, Morley, Sevra, Skinner, and Naumann (Edinburg, TX, 17" reflector, x169) " Texas group got a blink (red, Trident MB) on NW wall. Varied extremely. Increased in brightness in red. Clouds stopped obs. 5 confirmed visualy. (moon nr. horizon, Apollo 11 watch. No blink if spurious?)." NASA catalog weight=3 (average). NASA catalog ID #1170.
Proclus NW ray 2003 Sep 02 UTC 02:20-03:35 Observed by Haas (Las Cruces, NM, USA) "Everyone knows the bright ray running northwest from Proclus. In this view from 2:20 to 2:36, UT on September 2 I remarked a thin, pink southwest border to the ray. One thinks of chromatic aberration, and the position supports this interpretation; but other bright lunar features showed no such effect. The pink border lay 1 to 2.5 diameters away from Proclus (S=2, T=3.5). At 2:55, UT (S=1-2, S= 3.5) the border was gone; neither its appearance nor disappearance was observed. At 03:25 UT there is no sign of the pink border (S=2, T=3), moreover the Moon was lower, so atmospheric dispersion must be greater by now? 12.5" Newtonian x321 at 02:20-02:36, x202 at other times.?" Note that experiments to simulate spurious colour using Adobe Photoshop were able to recreate colour in the correct place on the NW ray - however there should have been colour reported on the SW ray too and there was no mention of this, therefore the observational report is intriguing. The ALPO/BAA weight=2.
Bessel 1877 Jun 17 UT 22:30 Observed by Denett (England?, 2.75" reflector) "Tho't he could detect a minute pt. of light shining out of dark crater. (no high peaks in Bessel to catch light.)" NASA catalog weight=3 (average). NASA catalog ID #194. ALPO/BAA weight=3.
On 1965 Aug 04 at UT 04:02-04:04 Bornhurst (Monterey Park, CA, USA, 10" reflector, x240, S=F-G) observed some star-like flashes in Aristarchus in ashen light. The Cameron 1978 catalog ID=889 and the weight=3. The ALPO/BAA weight=2.
On 1965 Oct 02 at 04:00UT an unknown observer saw a TLP (feature name not given in the Cameron catalog - nor a description or reference). The Cameron 1978 catalog ID=898 and weight=1. The ALPO/BAA weigh=1.
Theophilus 1972 May 19 UT 23:48 Theophilus observed by Ruchatz (51N 10E, 60mm refractor, T=4, S=2) "Diminution of brightness of the S wall for a short time" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
Proclus NW ray 2003 Sep 03 UTC 02:46-03:07 Observed by Haas (Las Cruces, NM, USA) "The curious reddish edge to the conspicuous bright ray running N2 from Proclus is seen again (x321, x366 (S=1-3, T=3.5- 2.5). It lies on the SW side of the ray, with no corresponding blue border on its NE edge. The effect persists as the Moon drifts across the whole eyepiece field. However at 03:46 (x202) the coloured edge is not recognized now, but perhaps only because of worse conditions (S=3, T=2) 12.5" Newtonian reflector used." The ALPO/BAA weight=3.
Linne 1866 Dec 14 UT 20:00? Observed by Schmidt? (Athens, Greece?, 7" refractor?) "Seen as a white spot, had been a fine black spot before as seen by Schmidt. (Also Buckingham in Dec. 1866; also D 16,25th,27th, -- not LTP?" NASA catalog weight=0 (probably not a TLP. NASA catalog ID 146.
Piton 1960 Dec 26 ? UT 00:00? Observed by Schneller (Cleveland, OH, USA, 8" Reflector, x53), "Red obscuration; less intense than Nov. (date not given, but discussion suggests near SR, therefore Dec 28th most likely date -- ancill. data given for 28th)." NASA catalog weight=3 (average). NASA catalog ID #732.
Atlas 1973 Apr 10 UT 18:37-19:49 Observed by Theiss (51N, 9.67E, 75mm refractor, T=2, S=3) "N. wall of Atlas was yellow-green, several magnifications tested with the same results" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 1978 Nov 08 at UT03:00 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x95, seeing 8/10) saw near Beer and Timocharis (11W, 30N) a bright flash inside the dark area. It appeared like a diamond twinkling in sunlight and was somewhat dazzling to the eyes. Cameron wonders in this was a meteor? The Cameron 2005 TLP catalog ID=39 and weight=2. This is an ALPO observation. The ALPO/BAA weight is 3.
On 1991 Apr 22 at UT 02:03-02:14 D. Darling (Sun Praire, WI, USA, 12.5", x99, seeing 7/10) found, using a red and blue Moonblink device that Atlas crater gave a blink, the dark spots inside the crater have a dark nucleus in the blue filter. This effect was not detected earlier that night. The Cameron 2006 catalog then says "Atlas normal". The Cameron 2006 catalog ID=424 and the weight=3. The ALPO/BAA weight=2.
Torricelli B 2002 Oct 14 UT 02:58-03:43 Observed by Gray (Winnemucca, NV, USA, 152mm refractor x114, x305, seeing Antoniadi III, transparency good) "I was out this morning (2:58-3:43 UT, October 14, 2002) observing Torricelli B. At 3:17 UT the west sunlit wall of the crater brightened from an intensity (Elger Scale) of 5.0 to 9.0. In actual terms it went from slightly less bright than the walls of Picard to as bright as the sunlit west wall of Dionysius. This was observed at 114x in white light, where all three craters were in the field of view simultaneously. This event lasted less than a minute and no comparable brightening in Dionysius or Picard was seen. The wall of Torricelli B returned to 5.0 in brightness. I continued to observe Torricelli B in white light until 3:43 UT, but the brightness remained at 5.0. Before the brightening I tried blinking Torricelli with the following combinations of filters: Wratten Red 25 and Blue 38A, Red 25 and Blue 80, and Red 25 and Schott BG38 (Blue Green). Nothing showed up more prominently in any combination except the Red 25-Blue 38A combination, where Torricelli B became invisible in the Blue, probably because of the filter density. Both the Blue 80 and Schott BG 38 seemed closer in density to the Red 25 than the Blue 38A is. I could not see any details inside Torricelli B during this session, including the bright spot on the NE rim." The ALPO/BAA weight=3.
On 2009 Apr 02 at UT 21:45-22:05 C. Brook (Plymouth, UK, 5" refractor, x40 and x100, using red and blue gelatine Edmund Optics filters (rose No. 47 and blue No. 80), transparency poor due to thick haze. seeing was excellent) observed that that the rays that crossed Mare Cisrium from Proclus were brighter in red light than in blue. A similar effect was also observed, to a lesser extent south of the Mare. Non-mare Crisium rays from Proclus did not have this effect. The TLP was not seen at the higher magnification of x100. The ALPO/BAA weight=2.
Aristillus 1973 Apr 10 UT 20:18-20:24 Observed by Pasternak (53.33N, 7.5E, 75mm refractor, T=3, S=3) "Faint reddish area at the SE wall of Aristillus" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
Near archimedes 2001 Sep 25 UT 08:30 Observed by Try (Whangarei, New Zealand, 4" f/10 reflector) "observed two possible L.T.Ps. on the edge of the terminator near the crater Archimedes. They appeared to be two bright points of light about the size of Mount Piton. They seem to form a triangle with Mount Piton. He observed them for two hours and they were still visible when he ended his observing session. He was observing with a 4" f10 reflector. Then Moon age was 7.9 days old and the colongitude was 4.83. submitted a drawing showing the area where the lights were observed." ALPO report. ALPO/BAA weight=1.
Alphonsus 1960 Jan 06 UT 18:00 Observed by Warner and Hole (London, England, 18" refractor and 24" reflector, Moon blink used) "Red spot. Hole saw this on several other occasions(indep. confirm)." NASA catalog weight=5 (very good). NASA catalog ID 727.
Plato 1952 Apr 03 UT 20:45-21:30 Observed by Wilkins and Moore (Meudon, France, 33" x460) whilst checking up on a 1923 28" refractor sketch by W.H. Stevenson's, thry failed to detect a prominent floor craterlet (featured in the 1923 sketch) just inside the W wall. They suspected an obscuration. Interestingly the whole floor was was reported to be lacking in detail many hours later as observed by Cragg in the USA. NASA catalog weight=5. NASA catalog TLP ID No. #550. ALPO/BAA weight=2.
On 1989 Jun 12 at UT 21:18-22:25 G. North (Herstmonceaux, UK, Coude, seeing=V) noted at 21:18UT that Torricelli B was "barely visible"- possibly this was seeing related. M. Cook (Frimley, UK, 8" reflector, seeing=IV) found Toricelli B to be ëxtremely dull - impossible to judge shadows on floor in contrast to Cens." Holmes (Rockdale, England, UK, 8" reflector, seeing=II-III) at UT21:30 also found Toricelli B difficult to find at magnifications less than 200x. Cameron comments that "Dulling is common on it at high Sun but illumination doesn't seem to be the cause or related". The Cameron 2006 catalog ID=365 and weight=5. The ALPO/BAA weight=2.
Plato 1970 Apr 15 UT 05:38-05:40,05:51-05:53 Observed by Cross (Las Cruces, NM, USA, 108mm Schiefspiegler or 152mm refractor, S=6, T=5.5=VG). The observer noted a lack of detail inside the crater floor, despite visibility of detail outside the crater. Spectra were normal for color. (obs. similar to historic reports. Apollo 13 watch?)" NASA catalog weight=1 and catalog ID #1253. ALPO/BAA weight=2.
On 1882 Feb 27 at UT 18:30-19:30 an unknown observer reported an unusual shadow in Eudoxus. Apparently the shadow was seen to be normal on 1882 Feb 25 at UT 20:30-20:45. The Cameron 1978 catalog ID=228 and weight=3. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.
Eimmart 1913 Apr 14 UT 01:00 Observed by Pickering (Mandeville, Jamaica, 6.5" reflector) "By this date crater was clear & at an albedo ~5?. Drawings compare Jan. 16 & Aug.9, 1913." NASA catalog weight=3 (average). NASA catalog ID #344.
On 2009 Apr 04 at UT 21:40 M.C Cook (Mundesley, UK) after receiving a telephone alert call, examined Plato crater. Although she did not report C. Brook's slight mottled pink on the floor of Plato, she did report through that the floor patches looked darker than normal, especially in blue light and in red they were not visible at all. In white light they were darker than normal. A.C. Cook was probably observing at the same time via a couple of remotely controlled telescopes in Aberystwyth. The results (time lapse imagery through narrow band filters) will be examined at a later date. Note that this observation was made after C. Brook said that he could no longer see his TLP. Therefore this constitutes a different TLP as there had been a gap of 1 hour since the last TLP report.
Agrippa 1966 Aug 26 UTC 01:52-02:24 Observer: Bartlett (Baltimore, MD, USA, 5" reflector x437) "Shadow of C.p. was grayish, wall shad. was normal black, C.p.itself barely disting. from floor" S=5, T=3. NASA catalog weight=4 (high). NASA catalog ID #966. ALPO/BAA weight=1.
Shadow of central peak barely distinguishable. Residual wall shadow normal black. Landslip very conspicuous, 10 deg bright. Cameron 1978 catalog TLP ID=1040 and weight=4. Cameron 2006 Catalog Extension ID=12 and weight=4. ALPO/BAA weight=2.
On 1991 Apr 25 at UT 02:34-02:37 UT D. Darling (Sun Praire, WI, USA, 12.5" reflector, x64) found that Atlas had spots in it that were "more intense in blue". No blinks were detected elsewhere on the Moon apart from Gassendi. The Cameron 2006 catalog ID=425 and weight=4. The ALPO/BAA weight=2.
On 1991 Apr 25 at UT 02:14-02:37 UT D. Darling (Sun Praire, WI, USA, 12.5" reflector, x64, S=7/10, T=4) found that after sketching Gassendi, that at 02:14 the central peak was very bright in red light, and barely detectable in blue light. By 02:26UT a strong blink was noticed on the NW rim, being very bright in the red filter. Effect still present at 02:32UT. The effect was not seen earlier at 01:57UT. The Cameron 2006 catalog ID=425 and weight=4. The ALPO/BAA weight=3.
On 1979 Dec 29 at UT 17:45-18:20 Crick (Merchtem, Belgium, 6" reflector, x140, seeing=III) found a violet spot in the NW inner wall. The floor was obscured of detail on the northern half. All other regions studied appeared normal. Observer unsure if this was a TLP or spurious colour. Cameron 2006 catalog ID=80 and weight=3. ALPO/BAA weight=3.
Pico 1976 Mar 12 UT 21:00? Observed by Findlay (England?) "A ray seen extended fr. mt. in SW (IAU?) direction -- likened to a hockey stick. (not seen in Pickering's photo atlas at col.=53 deg)." NASA catalog weight=3 (average). NASA catalog ID #1430.
Herodotus 1950 Jun 27 UTC 02:30 Bartlett (Baltimore, MD, USA) reported a bright point in crater. This is mentioned in the Middlehurst TLP catalog but not in the Cameron catalog. The source comes from a Strolling Astronomer article. ALPO/BAA weight=3.
Herodotus 1966 Jun 30 UTC 03:10-03:35 Observed by Bartlett (Baltimore, MD, USA) described in the NASA catalog as: "Bright pseudo-peak again vis. within floor shadow. Peak est. 5 bright. Had seen it at successive lunations in '66" 4" x280 refractor used. NASA catalog weight=4 (high). NASA catalog TLP ID No. #950. ALPO/BAA weight=3.
On 1992 Mar 16 at UT 00:39-01:14 D. Weier (Sun Praire, WI, USA, 11" reflector) at 00:39UT noted some soft, diffused, faint ïllumination within the shadow projected over the Cobra Head area, though it had a sharp appearance to the edge of the shadow. D. Darling (Sun Praire, WI, USA, 11" reflector) was taking photographs from UT 00:51 and making drawings and visual descriptions. The first 3 photographs in the sequence have the crater as normal. Four other photographs reveal an abnormality. Seeing conditions were excellent and a great deal of surface detail was seen inside Aristarchus crater - however the apeparance of the Cobra's Head was "washed out" and again shadows near to this were illuminated. The NASA catalog ID=442 and the weight=5. The ALPO/BAA weight=3.
On 2001 Aug 30 at UT20:35-21:15 C. Brook (Plymouth, UK) found a dimming in the central peak of Alphonsus, however it had returned to normal by Aug 31 UT 00:29-00:50UT when A.C. Cook (Alexandria, VA, USA, 8" reflector) examined the area, though there were some slight brightness variations that were attributed to seeing conditions. The ALPO/BAA weight=2.
Aristarchus 1973 Feb 14 UTC 18:31-18:34 observed by Fuger (49N, 8.42E, 75mm refractor, T=1, S=2) "Violet colours on S. of the crater" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 1993 Apr 03 at 23:39UT C. Adams (FL, USA, 24" reflector, x168) noticed a "translucent orange" colour in Gassendi crater within a 35deg sector (apex at the centre) - row of 3 central peaks extending west - the western central peak appeared as a dome with a summit craterlet. The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=3.
On 1993 Apr 03 at 23:39UT D. Weier (Sun Praire, WI, USA, 7x50 binoculars) observed 2 flashes within the Proclus crater. The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=2.
Aristarchus 1982 Nov 27 UT 20:13-01:00 J-H Robinson (Teighmouth, Devon, UK) found that the bands of Aristarchus were clearer in red than in blue light. North found that the sunlit part of the crater was very bright. M. Cook described the crater as a "kaleidoscope of colour. Foley observed UT 23:05-01:00 (Kent, UK, Antionadi III, Transparency Moderate) - Colouration Seen - Ref: BAA Lunar Section Circular. The Cameron 2006 catalog ID=190 and weight=5. The ALPO/BAA weight=3.
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.
Helicon A 1977 Feb 03 UT 2009-23:52 Foley and Moore observed the crater to be changing in brightness. Jewitt and Elms failed to detect this. ALPO/BAA weight=1.
Aristarchus 1976 Jan 16 UT 22:00-23:15 Observed by P.W. Foley (Wilmington, Kent, UK, seeing II) - Aristarchus was tremendously bright. No colour seen. ALPO/BAA weight=1.
Aristarchus 1973 Feb 17 UTC 22:15-22:45 Observed by Rose, Hunt, Robinson, Coleman (UK) described in the NASA catalog as: "Rose tho't W.rampart was diffuse over 1/3 its length. Alerted Hunt who tho't there was a dark patch (in poor seeing) but the diffuse effect was neg. Robinson tho't things norm. also Coleman(Seeing=poor). Moore thinks not real phenom. Rose used a 14", hunt a 6" and Robinson (and? Coleman) a 10" reflector. NASA catalog weight=1 (low). NASA catalog TLP ID No. 1363
Plato 1869 Sep 21-22? UTC 00:00? Observed by Gledhill (Halifax, UK, 9" refractor) "Group I craters-notable illum. accomp. by a single light on a distinct spot. (similar to Aug. obs. & if same phase as Ap 1870, date =22nd.). NASA catalog weight=2 (poor). NASA catalog ID #164.
In 1958 aug 20 at UT 20:00? an unknown observer noticed that Promontorium Agarum appeared filled with fog or mist. The Cameron 1978 catalog ID=510 and the weight=3. The ALPO/BAA weight=2.
Mare Crisium 1965 Oct 11 UTC 07:32 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
Aristarchus 1966 Jul 04 UTC 06:15-06:35 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x142) & by Corralitos Observatory (Organ Pass, NM, USA, 24" reflector). "S.region of floor was granulated & dull est. at 6 & pale yellow-brown tint. Rest of crater est. 8 bright white. Not confirmed by Corralitos MB" S=5, T=4. NASA catalog weight=4 (high). NASA catalog ID #955. ALPO/BAA weight=3.
Aristarchus 1970 Apr 22 UT 07:00 Observed by Thomas.
In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60" reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in magnitude in 2.5 hours - a photometric measurement. The average magnitude for this age is 4.03, so therefore the crater had brightened by two times above normal. The Cameron 1978 catalogID=769 and the weight=5. The ALPO/BAA weight=3.
Aristarchus 1969 Jun 30 - Jul 01 UT 23:37-00:00, 00:02-00:05 Observers: Moore (Sussex, UK, 12.5" reflector x360), Altizer, Arabanel (Corralitos Obs., Organ Pass, NM, USA, 24" reflector) "SE wall was orange, detected by Eng. MB Fading by 2353h, only a trace at 2358h & disappeared at 0000h. Later at 0002-0005h suspected again. Alt. was low. Bluring around crater seen at Corrralitos Obs. in the MB, but immeasurable on photos." NASA catalog ID #1150, NASA weight=2(for Moore), 5 (for Corralitos Obs). ALPO/BAA weight=3.
Aristarchus 1939 Dec 27 UT 08:00? Observed by Barcroft (Madera, CA, USA, 6" reflector) "Faint bluish mist on inner W. wall (according to Firsoff it was right after SR, but this can't be as age=16d & SR comes at 11d)" NASA catalog weight=3 (average). NASA catalog ID #464.
Mare Crisium 1965 Oct 11 UTC 10:10 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
On 1980 Oct 25 at UT03:53-05:21 D. Louderback (South Bend, WA, USA, 2.5" refractor, seeing=1-2 and transparency=2) found Proclus to have a slight yelloow tinge on the north wall. the brightness of Proclus was 9 and that of Eimmart 8. Cameron 2006 catalog ID=117 and weight=3. ALPO/BAA weight=3.
On 1980 Oct 25 at UT03:53-05:21 D. Louderback (South Bend, WA, USA, 2.5" refractor, seeing=1-2 and transparency=2) found Promontorium Agarum to have a slight blue tinge - apparently similar to that seen on Eimmart from an earlier date. Cameron 2006 catalog ID=117 and weight=3. ALPO/BAA weight=2.
Alphonsus 1966 Sep 02 UTC 03:16-04:18 Observed by Whippey (Northolt, UK, 3" refractor) & Corralitos Observatory (Organ Pass, NM, USA, 24" reflector) "A series of weak glows, final flash at 0418h. Not confirmed by Corralitos MB" NASA catalog weight=3 (average). NASA catalog ID 971.
Aristarchus and vicinity 1975 Feb 28 UT 03:20-03:45 Observers LeCroy Jr & Sr (Springfield, VA, USA). NASA catalog states: "Orange flash in crater that then spread over whole crater then turned to bluish haze at 0320h. Couldn't see surface underneath. All W. hemisphere was brighter than normal. Blue was only on Aris. Rest of Moon was examined for phenom. but none seen elsewhere. Gone by 0343h (just a few hrs after Eng. obs. -- not likely U.S. obs. had temp. inversion high press. sys. W. of him too). 4.5" reflector 45x, 150x. NASA catalog weight=4. NASA catalog TLP ID No. #1401. ALPO/BAA weight=4.
Plato 1966 Sep 02 UT 0625 Observed by Kelsey (Riverside, California, USA, 8" reflector x300) "Landslip at west would not focus. (Ricker not certain it was a real LTP)." NASA catalog weight=2 (low). NASA catalog ID 973.
On 2002 Sep 23 at UT22:45-23:56 C. Brook (Plymouth, UK) noticed that the bands inside Aristarchus varied (UT22:45-22:56) in definition whilst the rim of Herodotus and the rays of Kepler and Copernicus remained sharp. These bouts of variation were 1-2min in duration. At 23:56UT when he checked again the periodic blurrings of the bands were still present. The observer suspected atmospheric effects. M.Cook (Frimley, UK) observed 22:00-22:30 and could see only 2 bands on the west wall - but this may have been because of poor transparancy. The ALPO/BAA weight=1.
In 1950 Jul 02 UT07:22 Bartlett (Baltimore, MD, USA, 3.5" reflector) saw no dark bands on the inside of Aristarchus, despite detail being seen elsewhere. He would normally have expected to have seen bands at this colongitude, based upon past observations. The ALPO/BAA weight=2.
Aristarchus 1964 Oct 23 UTC 02:35-02:45 Observed by Bartlett (Baltimore, MD, USA, 3" refractor, 133 & 200x, S=3-5, T=4) "South floor region granulated, 6 deg bright with very faint trace of pale yellow color; rest of crater 8 deg bright." NASA catalog weight=4 (good), NASA catalog ID #859.
Aristarchus 1983 Oct 23 UT 19:00-01:30 Observer: Foley (Kent, UK, 12" reflector, seeing=II) noiced at 19:00UT an extended bright spot on E wall and extending beyond. This was brighter than other areas of the crater. There was also occasional star-like glistening. Foley comments that the inside of Aristarchus was slightly obscured. The TLP started fading from UT20:30 and finished by 01:30UT. six out of nine independent observers confirmed the effects seen. In total 14 observers observed, 9 reported back and 6 found abnormalities in Aristarcus though all encountered variable seeing conditions - some had spurious colour. Cameron comments that this was one of the best recorded/confirmed TLP events. All CED brightness measurements obtained were very high. Moore, Nicolson and Clarke (5" refractor and 15" reflector, 230-350xseeing III) found the crater to be very bright at 19:11UT through a 5" refractor and there was a blob on the east rim (Bartlet's EWBS?) at 19:14UT. Nicolson also saw a very bright star-like area on the eastern wall but this was not defined as it usually is. The crater was also very bright at 22:43UT using the 15" reflector available to these observers. At 01:07UT they used a Moon blink and discovered that the bright region was bright in blue light and less bright in red - although this was not a detactable blink when switching rapidly between filters. They found that the crater had returned to normal by 01:15UT. M.C. Cook (Frimley, UK, seeing III-IV) observed a large diffuse spot on the east of the crater that was brighter in blue than in red light and the CED device gave a high reading. J.D. Cook (Frimley, UK, seeing III-IV) made a skecth that showed the bright spot extended on the east wall - again the CED reading was high and a lot of detail was visible on the floor. A.C. Cook (Frimley, UK, seeing III-IV) also noted remarkable detail and the bright (as confirmed by CED) blob on the eastern rim. G. North (Sussex, UK, seeing III-II) also confirmed the bright blob on the eastern wall. Wooller found the north west wall was a dirty yellow colour - though no colour was seen elsewhere in or outside the crater. Mosely found the crater to be bright and his sketch revealed the extension of the bright blob on the eastern rim and again a great deal of interior detail. Amery (Reading, UK, seeing III) found Aristarchus to be "a brilliant splash against dulled background in violet filter, especially polarizing filter. CED + polarizer readings high, but not as high as previous night". Mobberley (Suffolk, UK, seeing III-IV) remarked that "spurious colour a total mess around Aristarchus & nothing abnormal seen". A photograph was taken at 20:50UT reveals the bright blob and entire detail. Peters (Kent, UK, seeingIII-II) observed Aristarchus with a UV screen from 20:15-21:23UT and comented that althogh being very bright, there was no variation between white and UV. It was checked with a Moon Blink device and the radial bands were clearly seen in white light, < in blue. The Cameron 2008 catalog ID=233 and the weight=5. The ALPO/BAA weight=4.
In 1962 Sep 16 at UT08:05 Spirad (Victoria, B.C., Canada, 48" reflector) obtained a spectrum with a UV emission, in H & K lines compared to Jupiter and Mars. II-AO plates, 6A/mm dispersion. Fraunhofer lines much shallower than planetary ones. (whole Moon). The Cameron 1978 catalog ID=770 and weight=5. The ALPO/BAA weight=4.
On 2013 Dec 19 N. Longshaw (Oldham, UK, Seeing III, TAK FS 78 APO Refracror) observed a diffuse area east of the central peak of Geminus, to be sepia/brownish tint. The ALPO/BAA weight=3.
Aristarchus 1961 Nov 27 UTC 23:30 Observed by Kozyrev (Crimea, Soviet Union) described in NASA catalog as: "Emission lines in spectrum of c.p. in red & blue, H2 identified, (he had obtained C2 & Swan bands in Alphonsus in '58 & '59" 50" reflector used. NASA catalog weight=5 (very high). NASA catalog TLP ID No. #755.
Aristarchus 1964 Aug 26 UT 02:00-03:00 Observed by Genatt, Reid, (Greenbelt, MD, 16" reflector, x360, S=P-G), and Lindenblad (Washington, DC, USA, 26" refractor) "Red and Blue bands. Grew thinner & shorter. Alerted Naval Obs. One obs. tho't he saw Phenom. but not sure. (confirmation ?). (prof. astronomers, but not lunar observers)" NASA catalog weight=5 (very high). NASA catalog ID #844. ALPO/BAA weight=3.
In 1957 Feb 10 at UT 22:00 an unnamed observer repirted a TLP somewhere on the Moon. The reference for this comes from: Palm, A. 1967, Icarus,& (2), p188-192. The cameron 1978 catalog ID=662 and weight=0. The ALPO/BAA weight=1.
Atlas 1954 Mar 23 UTC 00:00? Observed by Delmotte (France?) "Violet tint in crater" NASA catalog weight=3 (average). NASA catalog ID #562.
On 1975 Mar 02 at UT05:00-06:18 P.W.Foley (Wilmington, Dartford, Kent, UK, 12" reflector) observed blueness along the southern wall of Plato. This is a BAA observation. Note that it is assumed that this is the same as Cameron's catalog 1975 Mar 02 UT 01:00 or 23:00 report by an Unknown English Observer who apparently observed colour in Plato (Red or violet). The Cameron 1978 catalog ID=1402 and weight=1. The ALPO/BAA weight=1.
Plato 1966 Aug 05/06 UT 23:37-02:58 Observers: Corvan, Moseley (Armagh, N.Ireland, 10" refractor, x280) and Ringsdore (England, 8.5" reflector) "Several red glows at different places at different times. Each lasted a few min. (not confirmed by Ringsdore. Given as 8/4 in MBMW) NASA catalog weight=4, NASA catalog ID=#964. ALPO/BAA weight=2.
Aristarchus 1961 Nov 27 UTC 23:30 Observed by Kozyrev (Crimea, Soviet Union) described in NASA catalog as: "Emission lines in spectrum of c.p. in red & blue, H2 identified, (he had obtained C2 & Swan bands in Alphonsus in '58 & '59" 50" reflector used. NASA catalog weight=5 (very high). NASA catalog TLP ID No. #755.
Agrippa 1966 Sep 05 UTC 04:47-05:00 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, 283x) "Within the wall shadow, the landslip was faintly illum., est. at 4, & distinctly brownish". S=6-1, T=3-1. NASA catalog weight=4 (good). NASA catalog ID #975.
On 1985 Sep 04 at UT 22:15 A.V. Arkhipov (Russia) detected a bright flash in Mare Tranquilitatis that lasted < 1 second and had a diameter of < 2 arc seconds i.e. the limit of seeing resolution. The Cameron 2006 catalog ID=280 and the weight=3. The ALPO/BAA weight=3.
Alphonsus 2002 Sep 27 UT 00:00-02:15 Observed by Clive Brook (Plymouth, UK) "Central peak was bright 00:00 UT but had faded by at least 2 deg on the Schroter scale - no colour seen. Observer continued observing until 02:15 UT but central peak had dimmed considerably by then"
Aristarchus 1964 Aug 28 UT 04:30-04:50 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x240) "Faint blue-viol. radiance on EWBS; dark viol. on nimbus. S.floor dull, 6, granulated, distinct yellow-brown; rest of crater 8 bright. NASA catalog weight=4. NASA catalog ID #847. ALPO/BAA weight=2.
On 1980 Oct 30 at UT03:19-03:41 P. Madej (Huddersfield, UK, 158mm f/4 reflector, seeing I-II, and transparency very good. Wratten 15 (yellow) and Wratten 35 (purple) used. No spurious colour seen). At 03:19UT, the observer noted that Mons Spitzbergen looked sharper at x52. At x72 bright flashes of a bright lunar gray to a light orange colour seen. BAA Lunar Section TLP team alerted. At 03:32UT a yellow filter used and the flashes were better seen, one flash approximately 20-30 sec apart. At 03:31UT Madej used a purple filter and could not see Mons Spitzbergen but did see the flashes (45-60 sec apart). cameron 2006 catalog TLP ID=118 and weight=3. ALPO/BAA weight=3.
Plato 1980 Oct 30 UT 05:00-0704 Observed by F.C. Butler (SW London, UK, seeing III, but worsening (but not as bad as IV) towards the end of the observing period, transparency 100% clear, 22cm Newtonian reflector, x144, x185). The floor seemed quite devoid of detail, apart from a vague mottling seen during the briefest moments of best seeing conditions. At the start of the observing period he could just glimpse the central craterlet at x185, but could not be sure. ALPO/BAA weight=1.
Alphonsus 1964 Oct 27 UTC 05:18-06:10 Observed by Hall, Johnson, Weresulk (Pt. Tobacco, MD, USA, 16" reflector x400, S=5-7). "Red spot. Pink glow detected with Trident MB & seen visually too." NASA catalog weight=5. NASA catalog ID #863.
On 1994 Apr 03 at 11:23UT D. Darling (Sun Praire, WI, USA) noticed that Copernicus crater had a red spot on the west wall (found using Moon Blink filters Wratten 29 and Wratten 38). The ALPO/BAA weight=3.
Alphonsus 1958 Dec 03 UTC 11:00? Observed by Alter, Mt Wilson, CA, USA, 60" reflector "Photog. spect. showed floor of crater redder than neighboring areas outside its walls. (Palm had a rep't for this date -- same area?). NASA catalog weight=4 (high). NASA catalog ID #710.
On 1994 Jan 04 at UT21:00 J. Nibbering (Rosendaal, Netherlands) obtained a photograph that shows a large crescent of light centred on Tycho crater, but includes also: Lilius, but not to Clavius. Cameron suspects strongly that it was caused by camera lens flare. The Cameron 2006 catalog ID=471 and the weight=5. The ALPO/BAA weight=1.
On 1981 Oct 21 at UT 11:35-11:48 B. Hobdell (St Petersberg, FL, USA, 10" reflector) found that the south peak of Plato on floor glowed white at 11:35UT, then a milky shade spread all aorind Plato's floor (previously completely shadow filled). The needle like shadows started to be indistiguishable through the sunlight (dawn on Earth). The cloud like feature was washed out by daylight at 11:48UT and conformed to the "white area except a tail that reached the cetre of Plato" Spurious colour was not seen. The Cameron 2006 catalog ID=157 and weight=3.
On 2009 Jun 16 at UT 03:20-03:40 P. Morgan (UK, 30.5cm reflector, x400, seeing=6/10 and transparency=5/5) observed a large diffuse ashen-like effect over the shadow filled floor of Plato. The effect was lighter towards the south. Observer checked the effect with both left and right eyes and it remained the same. Unusually no shadow spires from rim moutain peaks were seen. A check for colour in the region effected revealed none. As time progressed, terrestrial twilight encroached. A sketch was made. The ALPO/BAA weight=1.
On 1981 Oct 21 at UT13:40-13:45 D. Louderback (South Bend, WA, USA, 10" reflector) observed a cloud on the north east quadrant of Aristarchus crater, and also covered the bright spot on the east wall (Cameron says that the east wall bright spot is Bartlett's "EWBS". Louderback mentions that this TLP gave Aristarchus a diamond ring effect. The Cameron 2006 catalog ID=157 and weight=3. The ALPO/BAA weight=2.
Aristarchus 1961 Dec 3 UTC 03:05-03:40 Observed by Kozyrev (Crimea, Soviet Union) described in NASA catalog as: "Emission lines in spectrum of c.p. red & blue, H2 identified, several km2 area. Projected into shadow cast by W. wall. Source rose to a height above the crater. 50" reflector used NASA catalog weight=5 (very high). NASA catalog TLP ID No. #756.