Grimaldi 1971 Jun 18 UTC 02:12-02:31 Observed by Jorgensen (Denmark, 36" refractor, 60, 200x, seeing good) "Dark reddish spot in SW part of crater. At 60x. Became clearer at 200x & seen in midwest also. At 0331h phenom. clearest in west, while S. region had faded. Air turb. & dawn ended obs. at 0331h. Seen best in yellow filter, well in red, invis. in green & blue." NASA catalog weight=3. NASA catalog ID #1298. ALPO/BAA weight=3.
Closest parts of the Moon at Saturn appearing from occultation were dull and hazy. Was this an effect of the lunar atmosphere or a high haze and halo around the Moon? Cameron's 2006 catalog extension gives this an ID No. of 3 and a weight of 1. The ALPO/BAA catalog weight is also 1.
On 1981 Nov 23 at UT 10:31 B. Hobdell (St Petersberg, FL, USA, 3?" refractor, seeing=1) observed 3 star-like very bright yellow flashes (approximately 20 sec apart) on the east of Taruntius or on a ridge near this. No additional flashes were seen. The Cameron 2006 catalog ID=159 and weight=1. The ALPO/BAA weight=1.
Reiner 1986 Jun 04 UT 09:15-09:33 Observed by Darling (Sun Praire, WI, USA, 12.5" Newtonian x79, x40, x35, Seeing 6, sky clear and steady - Moon 9deg above horizon). David Darling was out on the morning of 4 June observing the planet Mars. While studying Mars the crescent Moon rose giving me a splendid view of the earthshine portion of the disk. As the Moon rose higher into the sky he decided to turn the telescope onto it to the earthshine region of the Moon. He made it a practice to examine this region of the Moon to monitor for craters that appear to glow under this light. While observing he became aware of a black spot located in the sunlit portion of the Moon about 60 miles west of the sunset terminator. At first he thought the black spot was a shadow being cast by a large mountain or crater. When looking at his lunar charts he could not locate any feature that would account for it. As he continued to study the black spot he realized that it appeared darker than any shadows on the Moon. It was at 4 June 1986 4:15 A.M. CDT or 9:15 U.T. when he first sighted the phenomena and it was at 4:25 A.M. CDT or 9:25 U.T. that he realized he was seeing a lunar transient phenomena event. It was at this time that he could start to see silvery filaments or streaks in the black patch. Between 9:23 and 9:25 U.T. he watched the black patch disappear. When the black spot had disappeared he found that the location of the black spot was over the crater Reiner. he estimated that during the L.T.P. event that area covered by the black cloud was approximately 40 to 50 square miles. He also had examined other formations on the Moon during this event and none were exhibiting the same phenomena witnessed over the crater Reiner.
On 1990 Feb 16 at UT18:00 Schroter(Lillienthal, Germany) saw a small hazy spot of light in the vicinity of Aristarchus crater. The cameron 1978 catalog ID=64 and weight=4. The ALPO/BAA weight=1.
In 1955 Apr 24 at UT 19:20 F.C. Wykes (England?) observed a white flash north of Mare Serenitatis, near Posidonius (25E, 32N). Cameron comments that this might be a meteor in the dark. The cameron 1978 catalog ID= 588 and weight=0. The ALPO/BAA weight=1.
On 1976 Mar 03 at UT 17:30-18:30 Classen? (Budapest, Hungary, 8" refractor, 14" reflector) observed Aristarchus to have a point-like brightness -- white. The Cameron 1978 catalog ID=1429 and weight=3. The ALPO/BAA weight=1.
On 1990 Feb 17 at UT18:00 Schroter(Lillienthal, Germany) saw a small hazy spot of light in nthe vicinity of Aristarchus crater. The cameron 1978 catalog ID=64 and weight=4. The ALPO/BAA weight=1.
On 1970 Jun 07 at UT 23:00-23:30 Celis et al. (Paso Hondo, Chile, 2.5" refractor, seeing=good?) observed bluish star-like points in Aristarchus that formed intermittently. The atmosphere was not turbulent. Cameron comments that maybe this a confirmation of Bartha's earlier TLP report?. The Cameron 1978 catalog ID=1259 and weight=3. The ALPO/BAA weight=2.
On 1969 May 20 at UT 03:18-04:27 Cross (Las Cruces, NM, USA 6" refractor), Olivarez (Spain?), Kohlenberger, Gibson, Miller, Duarte and Harris (CA, USA) observed brightenings, pulsations, scintillations in Aristarchus crater. Cameron says independent confirmation seen by 4 observers, 1-2 magnitude increases, ranged between 1-30sec. Most active period was 03:18-03:20UT, 04:17-04:27UT (Las Cruces). Calkins (West Covins, CA, USA) UT 03:40-04:25 saw one major brightening up 2 magnitudes above steady state lasting 0.2 to 1.5 sec and another slow brightening lasting 5-10 seconds. Kelsey (CA, USA) saw at 03:43-03:48UT some brightenings. These observations were made during the Apollo 10 watch. The Cameron 1978 catalog ID=1127 and 1128 and weight=5. The ALPO/BAA weight=4.
On 1939 Feb 23 at UT17:00 Malakhov, Filippoova (Russia) observed an intensive luminescence in background of ashen light that had ceased in March, in Aristarchus (confirmed of Andrenko - says Cameron). Cameron 1978 catalog ID=446 and weight=5. ALPO/BAA weight=3.
On 1970 Jun 08/09 at UT 23:30-00:00 Celis (Quilpue, Chile, 3" refractor, x60, seeing=good?) observed lots of activity in the Aristarchus region - blue luminous star-like points, frequently appearing. Cameron comments that maybe atmospheric effects. The Cameron 1978 catalog ID=1260 and weight=1. The ALPO/BAA weight=1.
Cape Agarum 1995 Feb 05 UTC 18:10-19:20 Observer: P.Moore (Sussex, UK, 15" reflector) - obscuration seen - Antoniadi II seeing, and Moon high up. BAA Lunar Section report. ALPO/BAA weight=3.
On 1969 May 21 at UT 03:40-04:25 Kohlenberger (Fullerton, CA, 12" reflector), Harris, Miller (Torrence, CA, 12" reflector), Bell and Calkins (Ojai, Duarts, CA, USA), Kelsey (West Covins, CA, Riverside, CA, USA) observed scintillations in Aristarchus - Cameron says independent observations?). Members of Astronet took part in this observation. Kelsey saw a brightening but not on the order of seconds as others reported. Cameron suspects an atmospheric effect and also comments that this was during the Apollo 10 watch. The Cameron 1978 catalog ID=1130 and weight=2. The ALPO/BAA weight=2.
Jansen-Maskelyne 1969 Jul 20 UT 00:53-01:00 Observed by Jean and Collak (Montreal, Canada, 4" refractor and 6" reflector) "Jean and Collack noted obscur. between Jansen and Maskel. from term. No features discernible here whereas Proc. & Theoph. were already vis." NASA catalog weight=2 (low). NASA catalog ID #1169.
Near Langrenus 1969 Jul 20 UT 00:53-01:00 Observed by McNamara (Canada, 6" reflector) "McNamara saw a flash nr. Lang. (meteor?) Apollo 11 watch)" NASA catalog weight=0 (very unreliable). NASA catalog ID #1169.
On 1970 Jun 09 at UT 23:15-23:30 Celis (Quilpue, Chile, 3" refractor, x60, seeing=good) observed in the Aristarchus region: "Brilliant blue star-like, uninterrupted. The Cameron 1978 catalog ID=1260 and weight=2. The ALPO/BAA weight=1.
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 1982 Oct 22 at UT23:45-00:10 K. Marshall (Medellin, Columbia) found the W-NW rim of Proclus was both red and very bright. The brightness is normal, but as no similar colour effect was seen elsewhere on the Moon, this was regarded as a TLP. The Cameron 2006 catalog ID=187 and the weight=3. The ALPO/BAA weight=3.
On 1982 Oct 22 at UT23:55 K. Marshall (Medellin, Columbia) found the NE cleft in Posidonius to be abnormally bright, much more so than the walls of the crater. The ALPO/BAA weight=1.
On 1877 Jun 16 at UT 20:00 Harrison (USA?) noted on the western limb variations of brilliancy along the dark limb reembled light of a moving mirror held to a strong light against shadow of a dark ha.. Faint greenish-blue streamers resembling terr. aurora streamers. He thought they were same cause on the Moon. The effect was brighter two days earlier. The Cameron 1978 catalog weight=3 and ID=192.
On 2009 Mar 31 at UT 19:26-19:50 Cook M.C. (Mundesley, UK, 90mm Questar reflector, x130, seeing II-III, transparency poor to moderate). The crater had it's north-east to west wall illuminated and a central feature on the floor, faintly seen - both of these are normal. The crater itself though was much brighter in a red filter, bright in a wellow filter, but dull in a blue filter. Possible variation seen whilst using the red filter, but this may have been due to haze. All other features behaved normally. The ALPO/BAA weight=3.
On 1984 Sep 30 at UT17:30-18:45 P. Madej (Huddersfield, UK, 83x, seeing=I-II, transparency very good and no spurious colour) "Twilight Earthsine at 1732, 83x light-darker blue by 1800. Looked like a star of mag. 3-4 with no variations. Spot moved slightly from side to side, not connected with alignment or optical. Luminescence may have expanded and contracted, but not sure. Other regions in Earthsine not seen. (Mobberley) saw Earthshine with naked eye. Aris seen before clouds came. Earthsine > normal T=E. (Foley) took CED readings which confirm the brilliance of it. No other features could be measured in Earthshine."The Cameron 2006 catalog ID=250 and the weight=0. The ALPO/BAA weight=1.
On 1969 May 22 at UT04:28-05:06 Harris (Tucson, AZ, USA, 21" reflector), Ricke (8" reflector), and Cameron (Greenbelt, MD, USA, 21" reflector, x40 and x250) observed "Brightenings & pulsations. 1st per. 0428-0440h(R&H); then 0500(R). 3rd per. 0506h(H). Pulsations intermittent & increase @ 1/2 mag. except 1 was 1-2 mag. greater. (atmosp. ?). Cameron at 0130-0330 did not see Aris. in 12-in refl. at 40x or 250x, & saw nothing abnormal. (Apollo 10 watch)". The Cameron 1978 catalog ID=1133 and weight=1. The ALPO/BAA weight=2.
Biela, Maskelyne 1969 May 23 UTC 02:32-03:00 Observed by Skinner, Perez, Barry, Bernie, Madison (Edinburgh, TX, USA) described in NASA catalog as: "Bright W.rim & 2 spots on N. &SE rim had blink (red -- Trident MB device) & event was in progress at start of obs. Saw nothing without image tube. Could not focus camera so no photos. Blink had ceased when image tube was replaced. Temporary bright reddish spot nr. Mask. photographed, (Apollo 10 watch). 17" reflector used. NASA catalog weight=5. ALPO/BAA weight=5.
On 1969 May 23 at UT03:04-03:10 Jean (Montreal, Canada, 4" refractor, seeing=good, transparency=3.) observed a white patch on the southern horn of the Moon. It enlarged and became coloured pink and blue without filters and reddish in a yellow filter(?). At 03:10UT the area became as normal as the rest of the environment. Other observers participating were: Rousseau (Canada, 8" reflector), Collier (Canada, 5.25" refractor) and Dumas, St. Cyr (Canada, 5.25" refractor). Cameron suspects a real event mixed in with Chromatic Aberation? Apollo 10 watch. The cameron 1978 catalog ID=1138 and weight=3. The ALPO/BAA weight=2.
Maskelyne 1969 May 23 UT 02:32-03:00 Observed by Skinner, Perez, Barry, Bernie, Madison (Edinburgh, TX, USA) descibed in NASA catalog as: "Temporary bright reddish spot nr. Mask. photographed, (Apollo 10 watch). 17" reflector used. NASA catalog weight=5. ALPO/BAA weight=4.
Cyrillus 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso, Chile, 12" reflector x88, LION network) "Small crater in Western Cyrillus was much brighter than anything in the area". NASA catalog weight=1 (very low). NASA catalog ID #1242.
Mare Numbium 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso, Chile, 12" reflector x88, LION network) "Small crater in Western Cyrillus was much brighter than anything in the area. Earlier he got a blink at 35deg W 15 deg S 10th mag. Drawing (Apollo 13 watch)" NASA catalog weight=2 (poor). NASA catalog ID #1242.
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=2.
On 1972 May 19 UT 18:24 observed by Engels (52deg 40'N 9deg 5E, using 10x50 binouculars, transparency 2 out of 5, seeing unknown), a orange to yellow bright flash was seen, lasting 0.1 sec at the southern rim of Mare Crisium. Published in Hilbrecht and Kuveler, Moon and Planets, 30 (1984) p53-61. ALPO/BAA weight=2.
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.
On 2012 Feb 28 R. Braga (Italy, Seeing III, Transparency very good, AOG 100mm) UT 19:45-20:00 noted that only the tip of the central peak was visible. Most of the crater was in darkness. When viewed through a red filter, the central peak was visble, but when viewed through a blue filter it was invisible. ALPO/BAA weight=2.
On 1970 Apr 12 at UT 23:56 Loocks (Valparsiso, Chile, 12" reflector, x88) observed a flash of magnitude 10 in Aristarchus - "not as brilliant as usual (obscur. ?). Did not obs. permanent luminosity as in other apportunities. (Apollo 13 watch)" The Cameron 1978 catalog ID= 1243 and weight=3. The ALPO/BAA weight=2.
On 1969 May 23 at UT 03:58-04:17 Wald (Zurich, Switzerland), E. & L. Cross (Las Cruces, NM, USA, 6" reflector, x120, S=F, T=VG). "Crater pulsations (Wald). Variations suspected at 0318, 0320-25 by E. Cross, 0417-27 by E. & L. Cross saw non-periodic short var., sudden increases 1-2 mag. & sudden to slow, 1-30s decreases to normal 0441-0446. (confirm. ?Apollo 10 watch)". The Cameron 1978 catalog ID=1139 and the weight=5. The ALPO/BAA weight=4.
On 2009 Apr 01 at UT 20:00-20:30 C. Brook (PLymouth, UK, 5" refractor, x40 and x100, using red and blue gelatine Edmund Optics filters observed that a few bright areas in the centre of mare Crisium were brighter in red at the start of the observing session than in blue, although not at a higher magnification. The observation ended when seeing worsened. The ALPO/BAA weight=2.
Hase 1970 Apr 13 UT 01:28 Observed by Dumas (Montreal, Canada) "Intermittent light on S.wall of crater (atm. ?) (Apollo 13 watch). NASA catalog weight=1 (very poor). NASA catalog ID #1244.
On 1969 May 24 at UT 02:40 Ricker (Marquette, MI, USA, 10" reflector) and Kelsey (Riverside, CA, USA, 8"? reflector). Ricker saw pulsations in Aristarchus, partly confirmed by Kelsey. Cameron comments that it is suprising that Aristarchus could be seen at first quarter - Apollo 10 watch. The Cameron 1978 catalog ID=1142 and weight=5. The ALPO/BAA weight=4.
Proclus 1969 Jul 22 UT 00:30? 01:15-01:25 observed by Classen (Pulsnitz, E.Germany, 8" reflector), Leroy (Pittsburgh, 21.5" reflector x310) and Cutter (Pennyslyvania) "Brightening of crater (Classen). Alternatate brighening of S.part of crater at 15s intervals (too long interval for atm.) while N. half remained constant. Leroy confirmed Cutter. (Both confirmed Classen Apollo 11 watch)." NASA catalog weight= 5. NASA catalog weight=1151. ALPO/BAA weight=3.
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.
Agrippa 1961 Oct 17 UTC 00:32-00:52 Observed by Bartlett (Baltimore, MD, USA) described in NASA catalog as: "Shadow of c.p. medium gray, compared with black wall of shadow" 5" reflector x180. NASA catalog weight=4 (high)
Theophilus 1972 May 20 UTC 19:10-19:59 Observed by Haiduk (13.25E, 52.5N, 75mm refractor) "Well visible brihtening on the SW wall" S=2, T= 3 Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, pp53-61.
Ptolemeus 1970 Apr 14 UT 00:45-01:30 Observed by Nelson Travnik and Sergio Vianna (Matias Barbosa, Minas Gerais, Brazil, 4" refractor, x250, x400, - observing onditions very good, Kodak Wratten 15 an d 23 filters used) "A kind of glimmering mist lifted and wafted inside the shady hollow of the crat er (Apollo 13 watch)" NASA catalog weight=3 NASA catalog ID #1248. ALPO/BAA weight=1.
Proclus 1972 Mar 22 UT 19:50-21:55 Observed by Jewitt (Middlesex, England, 6" reflector x150, S=7, T=4), Beddoes (England), and Moore (Selsey, England, 12.5" reflector, x250, x460, S=E, S=F) "At 1905h noted c.p. was invis. under all magnifications. At 2050h saw minute star-like flash @ 0.5s duration, followed by another 10s later, & another one 10s after that. Occurred on N. crater floor. Proc. C was vis. Was using blink device. Beddoe saw nothing unusual from 1850-1900h (prior to event). Moore alerted, saw nothing unusual from 2100h on (after flash. c.p. variation similar to rep'ts by Bartlett e.g. ID=1309." NASA catalog weight=2. NASA catalog ID 1327. ALPO/BAA weight=1.
On 1991 Apr 22 at UT 01:10-01:22 D. Darling (Sun Praire, WI, USA, 12.5", x99, seeing=7/10) observed that Piazzi-Smyth was bright in red light but fuzzy in blue light. The Cameron 2006 catalog ID=424 and the weight=3. The ALPO/BAA weight=3.
SE of Ross D 1969 May 24 UT 05:06-05:20 Observed by Harris (Tucson, AZ, USA, 21" reflector, S=F-P) "Multiple albedo changes, 2 bright areas vis. at 05:06, reduced at 0508h Whittier, CA, USA, 19" refractor?) NASA catalog weight=0 (very unreliable). NASA catalog ID #874. However a letter by Harris states: Variable transparency - colourless bright area SE of Ross D with variable condensation. ALPO/BAA weight=1.
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.
Agrippa 1961 Oct 18 UT 00:43-01:00 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180, S=2-3, T=5) "Shadow of c.p. remained grayish, wall shad. normal black. Not due to seeing as wall & landslide shad. not affected. Not caused by refl. sunlight because other similar obs. showed different aspects." NASA catalog weight=4. ALPO/BAA weight=2. NASA catalog ID #750.
On 1969 May 25 at UT03:53-05:47 Ricke (Tucson, AZ, USA, 8" reflector), Leasure (Tucson, AZ, USA), Freuland (Tucson, AZ, USA), Sheridan (Wyoming, USA), and Harris, Tucson, AZ, USA). "At 0353h saw brightening of 1s intermittent pulsations of 1 mag., confirmed by Leasure at 0357; 0400 Freuland saw brightening. At 0514h Ricke, 1 mag, at 0515h-0530 -- low amp. variations seen by Ricke & Harris. At 0525h Sheridan saw bright. & puls. Harris at 0546h-47h saw 2 brightenings in crater. (Apollo 10 watch seen in dark at gibbous phase!). (indep. confirmation?)". The Cameron 1978 catalog ID=1146 and weight=5. The ALPO/BAA weight=4.
Eratosthenes 1961 Oct 18 UT 01:05-01:25 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180, S=P, T=G) "Fluorescent violet on inner W(IAU) wall (reported as bright spot in MB). NASA catalog weight=4 (high). NASA catalog ID #751.
1972 Mar 23 UT 19:24 Observer: Rudolphi (48.58N, 10E, 60mm refractor, Transparency=2) "Pure white very bright event" Ref: Hilbrecht & Kuveler - Earth, Moon & Planets (30) pp53-61.
Eratosthenes 1970 Apr 15 UTC 01:25-01:42 Observed by daSilva (Brazil, 10" reflector x200 & 20" refractor x224, Seeing=good, Transparency=Good). "Vis. blink? on lower c.p. Ilum. walls were yellowish-white C.p. diamond brightness with a pt. flashing. Turbulent atms. impeded confirm. Other features were normal (Apollo 13 watch. S-IVB impact at 0109h, took 70 s to reach A12 Alsep." NASA catalog weight=3. NASA catalog ID #1252. ALPO/BAA weight=3.
Ross D 1969 May 25 UT 04:34-04:38 Observed by Cross (Las Cruces, NM, USA, 6" f/17 refractor) "Bright spot adjacent to NE segment of crater, 1.5-2" at greatest extent & much brighter than rim of Ross D. Fuzziness here & extensive obscur. of detail E. of Ross D (Apollo 10 watch)" NASA catalog weight=3, NASA catalog ID #1147. ALPO/BAA weight=3.
Schroter 1839 Jul 19 UT 22:00? Observed by Gruihuisen (Munich, Germany) "Dark mist" NASA catalog weight=4 (high). NASA catalog ID #119. ALPO/BAA weight=3.
On 1980 Oct 17 at UT18:40-19:10 G. Blair (Weir, Renfrewshire, Scotland, UK, 22cm reflector, seeing II, transparency excellent, no spurious colour) noticed at 18:40UT that the bright central peak of Alphonsus was elongated. At 18:41UT, at higher power, the central peak separated from a bright point of light, intensity about that of a 6th magnitude star. at 18:43UT a filter check was made of the suspect point and surrounding regions - slightly nrighter in red. At 18:50UT intensity of bright point reduced to equivalent of 4th magnitude star. Noted that Earthshine was the brightest that he had ever seen it. At 19:03 UT losing the Moon behind a chimney. UT 19:10 brief appearance, bright point still seen at 4th magnitude. 19:27UT the Moon disappears again. 20:15UT reappearance of the Moon and Alphonsus appeared normal. The ALPO/BAA weight=2. This is a BAA Lunar section observation.
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.
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 1987 Jul 05 at UT 21:18-21:38 H. Miles (Cornwall, UK, Moon's altitude 19 deg) found the north west rim of Proclus was very bright and when he alternated between red and blue filters got a colour blink reaction. There is no Cameron 2006 catalog entry for this TLP report. The ALPO/BAA weight=3.
On 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.
On 1992 May 11 at UT 20:20-21:00 R. Amendsensvej (Esbjerj, Denmark, 10" reflector, x333) noted that Copernicus had "almost no disturbance. Flash was seen between 2236:30 & 2236:40. Thus 10S". The Cameron 1978 catalog ID=444 and weight=1. The ALPO/BAA weight=2.
Bullialdus 1980 Oct 18 UT 20:15-20:25 Observed bt Amery (Reading, England, 10" reflector) "Colour blink reaction in English Moon Blink Device" BAA Lunar Section report. Cameron suggsets that this might be a permanent coloured blink area. Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA weight=3.
Fracastorius 1980 Oct 18 UT 17:55-18:15 Observed by Robinson (Devon, England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink reaction in English Moon Blink Device - inner wall brighter in red than in blue light, despite other features appearing normal. BAA Lunar Section report. Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA weight=2.
Manilius 1980 Oct 18 UT 17:55-18:15 Observed bt Robinson (Devon, England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink reaction in English Moon Blink Device - crater surrounds bright in red and dull in blue light" BAA Lunar Section report. Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA weight=3.
Plato 1980 Oct 18 UT 17:55-18:15 Observed bt Robinson (Devon, England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink reaction in English Moon Blink Device - floor patches easily seen in red, not so well seen in blue" BAA Lunar Section report. Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA weight=2.
La Hire 1922 Nov 28 UT 22:00? Observer Wilkins (England). NASA catalog states: "Shadow cut thru by white streak (real LTP?. Pickering's atlas shows same phase & col. & shadow is all dark; elong. in peaks are N-S not E-W)" 15" reflectore used. NASA Catalog assigns a weight of 4. NASA catalog TLP ID No. # 388. ALPO/BAA weight=2.
Manilius 1972 May 22 UTC 20:10-20:40 observed by Kern (48deg 45'N, 8deg 45'E, 60mm refractor) "The SW inner wall became brighter at times" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
On 2009 Apr 04 at UT 20:30-20:45 C. Brook (Plymouth, UK) observed a slight pinkish mottling on the floor of Plato. The effect was no longer visible after 20:45UT. A telephone alert was put out to M. Cook and G. North. The former saw no colour, but this was after the event finished. The latter observer reported cloudy conditions. A.Cook was probably observing at the same time as C. Brook, via a couple of remotely controlled telescopes in Aberystwyth. The results (time lapse imagery through narrow band filters) will be examined at a later date.
Plato 1972 Mar 24/25 UT 20:38-00:00 Observed by M.Burton (UK, 13.5" reflector, seeing IV-V, Transparency Fair, x180) UT20:38- 20:45 floor was darker in a red filter than in a blue. UT20:47- 20:56 JS Burgess (seeing 2/5, x200, with and without filters) found everything normal (with and without filters). UT20:00- 20:07 and 21:30-21:35 A.J. Beddoes found everything normal (with and without filters). However at 23:10 L.Fitton suspected that the E (IAU?) floor of Plato had a red-brown cast, but could not be quite sure. UT23:54-00:00 M.Burton, detected the floor was darker in red than in blue light. Burton did not detect any colour without the use of filters on either of the two occasions that he detecetd a blink. In view of the fact that two observers did not detect anything, albeit not concurrently with the TLP reports, this TLP is being given an ALPO/BAA weight of 1.
On 1882 Feb 27 at UT 18:30-19:30 an unknown observer reported an unusual shadow in Eudoxus. Apparently the shadow was seen to be normal on 1882 Feb 25 at UT 20:30-20:45. The Cameron 1978 catalog ID=228 and weight=3. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.
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.
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.
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 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.
40-54W, 54N-60N i.e. nr. South? or J.Herschel 1913 Jun 15 UT 22:00? Observer: Maw (Surrey, UK, 6" & 8" refractors) "Small distinct redish spot which became diffused into a patch as term. advanced on the plateau NE of the crater South. When the plateau was on the term. (Goodacre says the crater was J.Herschel for same date -- 2 different spots or misident. for one?" NASA catalog weight=3. NASA catalog ID #345. ALPO/BAA weight=2.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5" reflector, x300, seeing=fair and transparency=good) through the red filter at 02:18UT saw a bright area on the west wall of Aristarchus crater become 2x brighter than normal then faded back to normal in < 1 min duration. The spot was 8km centred on sigma=0.682 and eta=0.397. No events seen at Kepler (Apollo 10 watch). The Cameron 1978 catalog ID=1149 and weight=4. ALPO/BAA weight=3.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5" reflector, x300) suspected a short duration flare up on the W wall of Aristarchus at 0.682 and 0.397, but it may have been due to poor seeing. No events seen at Kepler (Apollo 10 watch). The Cameron 1978 catalog ID=1149 and weight=4. ALPO/BAA weight=1.
On 1975 Feb 22 at 19:00-22:50 Fitton (Lancashire, UK, 8" reflector, seeing=II-III-I) saw Aristarchus (at 19:00UT) blue, with no obscuration visible in white, red or blue filters. This was not a telescopic effect. "Obs. 4.5h. Says it & next 5 nites obs. were due to high pressure system W. of obs.". Foley found nothing unsual in Aristarchus in his observing session, which overlapped Fittons. The 1978 catalog ID=1396 and weight=3. The ALPO/BAA weight=1.
On 1975 Feb 22 at 20:04-22:50 P.W. Foley (Kent, UK, 12" reflector, seeing=good) observed Prinz to have a diffuse white obsecuration. There were pulsations of 30-50sec intervals. Effect ceased at 22:50UT and indeed was fading earlier from 22:35UT. Photgraphs were taken but showed nothing unusual and no colour. Aristarchus was also negative. The Cameron 1978 catalog ID=1396 and weight=3. The ALPO/BAA weight=2.
On 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 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.
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.
Gassendi 1951 May 17 UT 22:45 Observed by Wilkins (Kent, England, 15" reflector) "Bright speck glowed for 3s. (meteor ?)" This was to the W of the central Mts and about the same magnitude as a 4th mag star to the naked eye. JALPO Vol 5 No 8 p4, quotes a 1s duration. NASA catalog weight=0. NASA catalog weight=544. ALPO/BAA weight=1.
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.
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.
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.
On 1980 Sep 22 at UT05:00? D. Louderback (South Bend, WA, USA, 8" reflector, x140 and 2.5" refractor) observed in Promitorium Agarum that one of his pre-designated points, called "A", through to "C and "D" was at least 5 brightness points brighter in red than in blue light. The reverse was true on Sep 25th. Tonight the red seemed to be on a narrow strip on the western edge. The Cameron 2006 catalog ID=109 and the weight=3. The ALPO/BAA weight=3.
Eratosthenes 1936 May 04 UT 05:40 Observed by E.P.Martz (Mandeville, Jamaica) "Detected bright spots on floor" NASA catalog weight=3 (average). NASA catalog ID #414. Ref. Haas, W. 1942, J.Royal.Ast. Soc. Canada, 36, 398. ALPO/BAA weight=1.
On 1979 Dec 02 at UT 00:36 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x349, seeing? 9-10/10 at 32 deg altitude) observed a bright flash between Aristarchus and Prinz crater on the illuminated part of the surface. The Cameron 1978 catalog ID=76 and weight=3. The ALPO/BAA weight=2.
Aristarchus 1973 Apr 15 UTC 19:03-20:13 observed by Pasternak (53deg 20'N, 7deg 30'E, 75mm reflector) "N wall was blue to violet, beginning disappearance at 20:08UT., end at 20:13UT." - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 1981 Oct 11 at UT04:45-05:03 D. Louderback (South Bend, WA, USA, 3" refractor) detected a violet tinge on the dark nimbus of Aristarchus, however by 05:13 the coloured tinge had gone. Louderback suspects an atmospheric effect. The Cameron 2006 catalog ID=155 and weight=0. The ALPO/BAA weight=1.
Aristarchus-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.
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.
Gassendi 1968 Jun 09 UT 21:35-21:45 Observer: Miles (UK, 5" refractor x120) "Blink inside NW wall. Trees stopped obs. at 2145h. At 2155h no blink vis. (Moore has date as June 6th, 1958 =misprint? as there weren't blink sys. then. Moon at low alt 7deg)." NASA catalog weight=2. NASA catalog ID #1077. ALPO/BAA weight=2.
Near Aristarchus 1788 Apr 19 UT 20:00? Observed by Schroter (Lilienthal, Germany) Event described as: "Small area very brilliant & other bright spots". No additional references given. NASA Catalog Event #44, NASA Weight=4. ALPO/BAA weight=1.
On 2013 Jan 25 UT 19:05-19:15 R.Braga (Milan, Italy, 115mm refractor, x267, seeing III, transparency average) observed that Plato in general was normal in appearance, but the east rim was showing a remarkable golden (yellow-golden) hue. This was a repeat illumination observation for a W.E. Fox TLP observation from 1938 Feb 14. The observer was wondering whether they were in some way biased after reading the original report desription - so uncertain over this being a TLP. In view of uncertainty ALPO/BAA weight=1.
On 1897 Jun 14 at UT 23:00 Pickering (Cambridge, Mass. USA) observed in "Schroter's valley and the vicinity variations in vapor colum. Break in col. toward F and eruption of crater D. 3.4 d after sunrise". The Cameron 1978 catalog ID=389 and the weight=3. The ALPO/BAA weight=2.
Galvani B: On 2019 Sep 13 UT 23:26 K. Kilburn (Manchester, UK, BAA - ED80 refractor, x2 Barlow, Canon 550 DSLR) took a sequence of images from 23:25-23:27 UT. On one of the images, taken at 23:26UT there is a blue/green spot on Galvani B. There is a hint of a possible fade of the spot in the other images but this is not conclussive. Te spot might just be a cosmic ray event or a bright part of the crater rim coming into view under brief exceptional seeing for one frame only. We need simlar illumination, and if possible topocentric libtation images, under different atmospheric conditions to confirm this. It would be great if the images were in colour too. The ALPO/BAA weight=1.
Plato 1980 Oct 23 UT 21:00(+/- approx 1 hour) Observed by Chapman (Kingston Upon-Thames, UK, 11.5cm refractor, seeing III, transparency poor. No spurious colour seen. During one (or both?) of these sessions, a Moon Blink was used and produced no results on all craters tested on, apart from Plato where the SW corner of the floor was brighter in red, and also visible in white light, but viewing was poor and at the limit for his telescope. ALPO/BAA weight=1.
Cauchy 1969 Jul 29 UT 06:00-06:22 Observed by Claudio Pamplona and Jackson Barbosa (Fortaleza, Brazil, 2" refractor) "very bright and clear(?) pulsating 3,3s,3s with crater illum. then 3s area illum. red & no filter area pulsated for 22m. Confirmed by Jackson (Apollo 11 watch)". NASA catalog weight=3. NASA catalog ID #1193. ALPO/BAA weight=3.
On 1993 Apr 06 at UT23:00 M.C. Cook (Frimley, UK) observed a TLP in Torricelli B - "Noted that it was > yellow but only visible in mauve + yellow combined". The Cameron 2006 catalog ID=460 and the weight=4. The ALPO/BAA weight=2.
Helicon A 1977 Feb 03 UT 2009-23:52 Foley and Moore observed the crater to be changing in brightness. Jewitt and Elms failed to detect this. ALPO/BAA weight=1.
Aristarchus 1976 Jan 16 UT 22:00-23:15 Observed by P.W. Foley (Wilmington, Kent, UK, seeing II) - Aristarchus was tremendously bright. No colour seen. ALPO/BAA weight=1.
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.
Lichtenberg 1955 May 07/08 UT 23:00-01:00 Observer: Jean Nicolini (Brazil). Ref: Azevedo (1962) NASA catalog weight=1, NASA catalog ID 590. ALPO/BAA weight=1.
"Proclus D. (Bartlett's designation) appeared as a dark spot, conformable to lts appear. at col. 111.15 deg in '55. Proc. A (Bartlett's designation) completely invisible the ordinarily easy to see. Conspic. a' col.103.78deg in 55' & st 110.1 deg in '55, but also invis. at col. 30.78deg in '56". Cameron 1978 catalog ID 665 and weight=4. Observer based in Baltimore, MD, USA and used a 5" reflectore x180 and S=4 and T=5. ALPO/BAA weight=2.
Aristarchus 1972 Mar 30 UTC 23:03-23:05 Observed by Kufer (11.5E, 48.25N, 110mm reflector) "A sudden brightening, but observations limited by cloud" Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, pp53-61.
Observed by Bartlett (Baltimore, MD, USA) described in NASA catalog as: "Strong viol. gl. on EWBS, whole length of E. wall. Dark viol. on nimbus pale viol. on plateau m. Area was hazy -- couldn't focus it. Brilliantly clear nite.3.5(?) reflector x180 used. NASA catalog wight=4, NASA catalog ID #665. ALPO/BAA weight=2.
Mare Crisium 1965 Oct 11 UTC 05:15 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
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.
Aristarchus 1970 Apr 22 UT 07:00 Observed by Thomas.
Plato 1869 Sep 21-22? UTC 00:00? Observed by Gledhill (Halifax, UK, 9" refractor) "Group I craters-notable illum. accomp. by a single light on a distinct spot. (similar to Aug. obs. & if same phase as Ap 1870, date =22nd.). NASA catalog weight=2 (poor). NASA catalog ID #164.
Mare Crisium 1965 Oct 11 UTC 07:32 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
Aristarchus 1966 Jul 04 UTC 06:15-06:35 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x142) & by Corralitos Observatory (Organ Pass, NM, USA, 24" reflector). "S.region of floor was granulated & dull est. at 6 & pale yellow-brown tint. Rest of crater est. 8 bright white. Not confirmed by Corralitos MB" S=5, T=4. NASA catalog weight=4 (high). NASA catalog ID #955. ALPO/BAA weight=3.
Aristarchus 1939 Dec 27 UT 08:00? Observed by Barcroft (Madera, CA, USA, 6" reflector) "Faint bluish mist on inner W. wall (according to Firsoff it was right after SR, but this can't be as age=16d & SR comes at 11d)" NASA catalog weight=3 (average). NASA catalog ID #464.
On 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.
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 1970 Apr 23 UTC 07:00 Observed by Thomas
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.
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.
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.
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.
Aristarchus 1970 Apr 24 UTC 07:00 Observed by Thomas
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.
On 2009 Jun 11 at UT01:00-01:15 C. Brook (Plymouth, UK, 2" refractor, x25, seeing excellent and no cloud or haze) obsrved fluctuations in the brightness of Aristarchus crater. No brightness fluctuations were seen elsewhere. 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.
1886 Oct 16 UTC 22:00 Observed by Lihou (France?) "Unusual phenomena ? (drawing)" Ref Sirius, Vol 20, 45 p69 (1887). NASA catalog weight=1 (very low). NASA catalog ID #252. ALPO/BAA weight=1.
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.
On 1890 Oct 03 at UT 22:00 Muller of Germany saw in Posidonius an unusual shadow (Moon low? and crater in dark part-terminator 2 deg past west wall - according to Cameron). Cameron 1978 catalog ID=267 and weight=3. ALPO/BAA weight=2.
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.
Copernicus 1955 May 12 UTC 03:40 Observed by Firsoff (Somerset, UK, 6.5" reflector x70) "Pico was invis. in violet filter. Copernicus was bright in it." NASA catalog weight=4 (high). NASA catalog ID #591.
Mt Pico 1955 May 12 UTC 03:40 Observed by Firsoff (Somerset, UK, 6.5" reflector x70) "Pico was invis. in violet filter. Copernicus was bright in it." NASA catalog weight=4. NASA catalog ID #591. ALPO/BAA weight=3.
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.
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.
On 1958 Dec 02 at UT 06:00 an unknown observer detected a TLP on the Moon. The reference for this is from Palm, 1967 Icarus. The Cameron 1978 catalog ID=709 and weight=0. The ALPO/BAA weight=1.
On 1975 Mar 04 at UT03:46-06:01 P.W.Foley (Wilmington, Dartford, Kent, UK, 12" reflector) observed bluesness along the southern wall of Plato. This is a BAA observation. The Cameron 1978 catalogue ID is #1403 and has a weight of 1. The ALPO/BAA weight=1.
On 1975 Mar 04 UT 04:01-05:30 P.W. Foley (Wilmington, Dartford, Kent, UK, 12" reflector, seeing excellent, no turbulence, slight frost and mist) had a suspicion of blue on the entire north wall of Aristarchus crater - not seen visually but detected with a Moon Blink device. Crater extremely bright and unable to penetrate it visually. Surrounding areas charp. No red/orange on south wall. All other areas proved negative. Photographs taken. No change in appearance over this time. ALPO/BAA weight=2.
1965 Oct 16 UTC 08:05-10:00 Observed by McLarin (Huntsville, AL, 20" reflector), Bates, Hall (Prt. Tobacco, MD, 16" reflector), Hardie (Nashville, TE, 30" reflector) "Color flashing pulsations intermittently detected by Trident MB device in Huntsville but not seen in Md, or vis. by Hardie when alerted. Pulsations in Cassini different from atmosphere" NASA catalog weight=2 (low). NASA catalog ID #906.
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.
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 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.
Aristarchus 1965 Oct 18 UTC 07:30-07:36 Observed by George, Dervas (Huntsville, Alabama, 20" reflector x125) "Color with intermittent displays, detected with Trident MB device. Observers dubious. NASA catalog weight=2 (low). NASA catalog ID #907.
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.
1965 Aug 21 UTC 06:55-08:05 Observed by Gilheany, Johnson, Segerstrom (Port Tobacoo, MD, USA) described in the NASA catalog as: "Color patch detected by Trident; MB device. Color was pink. Astronauts on Gemini 5 saw terrestrial auroras from space on this date". 16" reflector used. NASA catalog weight=5 (very high). NASA catalog ID No.#890.
Aristarchus 1983 Aug 03 UT 0305-0400 Observed by R,Moseley (Coventry, UK, 6" reflector, seeing II, Transparency very good). At the start of the observation, the NE wall and immediate exterior was the brightest area visible (this is normal) and seemed tinged with a faint blue/violet. At 03:45 the impression of colour was fading in the brightening sky, but by 03:55 the colour was back again with a faint violet/purple surrounding the whole formation from E clockwise to N. The observer found it difficult to decide whether it was really a colour on the Moon, or an optical illusion. ALPO/BAA weight=1.
On 1788 May 01 at UT 01:00? Schroter (Lilienthal, Germany, reflector used) observed a small depression near Aristarchus, 1, that had a strong glimmer. The Cameron 1978 catalog weight=4 and ID=45. The ALPO/BAA weight=2.