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 1822 Jun 22 at UT 21:20 Ruppell (Germany?) observed a "lunar volcano" in Aristarchus. The Cameron 1978 catalog ID=96 and the weight= 1. The ALPO/BAA weight=1.
On 1991 Apr 17 at UT 21:00-21:30 S. Beaumont (Windermere, UK, 23cm reflector, seeing III, transparency very good) noticed that there was a bright regin on the NW limb just to the west of Aristarchus, which was brighter than Aristarchus itself, and was less obvious towards the end of the observing period. ALPO/BAA weight=2.
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 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.
On 1990 Feb 18 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.
On 1822 Jun 23 at UT 21:20 Ruppell (Germany?) observed a "lunar volcano" in Aristarchus. The Cameron 1978 catalog ID=96 and the weight= 1. The ALPO/BAA weight=1.
On 1969 Jul 18 at UT 23:00-00:15 Ronaldo R. de F. Mourao (Rio de Janeiro, Brazil, 8" refractor, 10" refractor(?), 19.5" refractor) saw a TLP in Aristarchus that they had seen earlier in the evening involving: Luminosity in Aris. strong & prolonged northward with impression of 2 lum. pts. (Apollo 11 watch). The Cameron 1978 catalog ID 1159 and weight=4. The ALPO/BAA weight=1.
On 1989 May 10 at UT02:30-03:50 M. Wisniewski (Chicago, IL, USA, 8" & 6" reflector, x123) found Aristachus to be unusually bright and "glowing" as a blue-white magnitude 8 disk, though it faded close to the end of his observing period (02:30-02:50). A ray from Tycho could be seen in the direction toards Aristarchus crater. Darling (Sun Praire, WI, USA, 12.5" reflector, x50) found Aristarchus Z to be both bright and diffuse. The Cameron 2006 catalog ID=363 and the weight=2. The ALPO/BAA weight=1.
On 1991 Jun 16/17 at UT 20:30-00:30 T. Castro (Sao Paulo, Brazil, 24" reflector, x500) observed "Large white spot with a comet-like tail extending eastwards (celestial) on of the shore of Mare Crisium at 52.5E, 21.5N." This was confirmed by several other observers and apparently video recorded. The effect was seen on several nights but had faded completely by 20th June. J. Westfall (San Francisco, CA, USA) also videod the spot but on Jun 21. The Cameron 2006 catalog ID=429 and the weight=5. The ALPO/BAA weight=1.
On 1994 Jan 16 at UT19:30-21:10 D. Strachen (England, UK, 4" refractor, x21 and x143) whist looking at an occultation of ZC3453, saw a bright spot in Earthsine, just north of Aristarchus (47W, 25N) at position angle 30deg-40deg, only a little way in from the limb. It appeared like a star through haze and a few seconds of arc in diameter. It was Visible for more than 1 hour until 20:50UT although had faded somewhat by that time. However J. & M. Cook (Frimley, UK, 12" reflector, x143 and x244) saw nothing in Earthshine from UT 20:02-21:10. The Cameron 2006 catalog ID=472 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 1881 May 04 UT 20:00 "Gamma" a psuedonym for an astronomer (Germany?) observed Aristarchus to be be a very bright 8th magnitude star with pulsations. The Cameron 1978 catalog ID=221 and the weight=3. The ALPO/BAA weight=2.
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.
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 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.
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 1970 Apr 11 at UT 22:04-23:00 Claudio Pamplona and Jackson Barbosa(Fortaleza, Brazil, 2" refractor, x160, seeing=fair) observed an obscuration over Peirce, in particular they could not see the crater wall and the crater itself was like a black pit. (Apollo 13 watch). The Cameron 1978 catalog ID=1238 and weight=1. The ALPO/BAA weight=1.
On 1991 Jun 17 at UT 20:30 T. Castro (Sao Paulo, Brazil, 24" reflector, x500) observed "Large white spot with tail eastward shore of M. Crisium." The effect was seen on several nights but had faded completely by 20th June. Tonight it varied in brightness from "7.5-9.5 albedo" The Cameron 2006 catalog ID=430 and the weight=5. The ALPO/BAA weight=1.
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.
near Proclus 1970 Apr 12 UT 00:15, 00:20 Observed by Loocks (Valparalso, Chile, 12" reflector, x88) "Brilliant in area NW of crater. No change in brightness Contrast to opacity of illuminated fraction of this day Later saw a flash on the moon. (Apollo 13 watch)." NASA catalog weight=2. NASA catalog ID #1239. ALPO/BAA weight=2.
Theophilus 1970 Apr 12 UTC 00:25 Observed by Collier (Montreal, Canada, 6" reflector?, x180) "Sharp E. inside wall flashes; c.p. lighter than floor. Pink on peak & illum. wall. Drawing. (Apollo 13 watch)." NASA catalog weight=2. NASA catalog ID #1240. ALPO/BAA weight=2.
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 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 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 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 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 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.
Burg 1972 May 18 UT 20:50-21:45, 22:15-23:00 Observed by Moore (Selsey, England, 12.5" reflector, x350, S=3-4), and Fitton (Lancashire, England, 8.5" reflectpr, x200) "Suspected floor brightening at 2050h with a luminous strip to the SW. Persisted for sometime. Faded at 2110h & invis. at 2145h. Fitton from 2215h-2300h saw nothing unusual, (after event tho.)" NASA catalog weight=3. NASA catalog ID #1333. ALPO/BAA weight=1.
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 1969 Jul 20 at 22:50-23:15UT Jean Nicolini (Sao Paulo, Brazil, 12" reflector x430, S=II.5-III.5) saw a weak reddish area on the north west(east?) wall of Eudoxus crater. An English Moon Blink device showed it dark in blue and opaque in red. Reddening remained unchanged while comparing it to adjacent region and Aristotles. Colour index was toward dirty orange. Colour most apparent in the good moments of seeing and disappeared in the poorer moments of seeing, Cameron says that this is opposite to what was expected if the effect was atmospheric in origin and no colour was seen in Aristotles. Apollo 11 watch. Cameron 1978 catalog ID=1177 and weight=3. The ALPO/BAA weight=3.
On 1970 Apr 12 at UT 22:10-22:40 Censorinus was observed by Jean Nicolini (Sao Paulo, Brazil, 12" reflector, x680). The crater had a visible reddish hue--gap in bright area on western slope. Colourless to pink to reddish. Environs also involved. Photographs were taken. (Apollo 13 watch). Cameron 1978 catalog TLP ID 1241 and weight=3. ALPO/BAA weight=3.
Proclus 2005 Jun 13 UT 16:00-17:10 Observed by Julio Lobo (Campinas, Brazil, 500mm telescope + finder scope) "Glow and reddishness (pink) seen on circular rim. Also crater was intensely bright all over. After 16:30 the brightness fades, returning to normal. The ALPO/BAA weight=3.
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.
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.
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.
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 1971 May 01 at UT21:00-21:50 Staedke, Jorgensen (Berlin, Germany, x40 with filters) observed on Maurolycus a coloured, luminous projection from the crater into and through the small crater on the north rim. Colour of a dark candlelight then red. Length at diameter of small crater. a drawing was supplied. Cameron 1978 catalog ID 1293 and weight=1.
On 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 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.
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.
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.
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 1865 Nov 24 at 20:00? UT Williams and others (England, UK, 4" telescope) saw in Earthshine that Carlini was had a distinct 8th magnitude star-like speck in it. The Cameron 1978 catalog ID=140 and the weight=3. The ALPO/BAA weight=3.
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.
Torricelli 2011 Dec 31 UT 16:39-17:00 R.Braga (Milan, Italy, 80mm refractor) found the north rim or Torricelli to be very bright at the start of the observing session but dimmed considerably at around 17:00UT. Observer not sure on the normal appearance of this crater. ALPO/BAA weight=2 followinf repeat illumination images in the 2021 Apr ALPO TLO..
On 1877 Jun 17 at UT 21:00? Harrison (USA?) observed a light point on the Earthlit side of the Moon. He also observed a luminous point that could not be identified (Cameron speculates that this could be a confirtmation of Denett's Bessel observation?). The Cameron 1978 catalog ID=195 and the weight=3. The ALPO/BAA weight=2.
Rabi Levi 1969 May 23 UT 05:28-05:35 Observed by Perez, Gay, Skinner, Floodine (Edinburgh, TX, USA, 17" reflector) "3 small craters in it, middle one had a blink (Trident MB --red) very bright & the NW crater of the 3 had a dimmer blink. A few bright flashes were seen vis. by 3 obs. without the image tube, lasting 15s. Clouded out at 0525h, (alt. of moon was very low--atm?, ? Apollo 10 watch)." NASA catalog weight=3 (average). NASA catalog ID #1140.
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.
Piton 1970 Apr 13 UT 22:06-01:30 Observed by Cutts (Waverton, UK) "Peak was bright (Apollo 13 watch. Shining in dark?)" NASA catalog weight=1. NASA catalog ID #1247. Similar illumination shown on Hatfield Plate 2E(left). ALPO/BAA weight=1.
On 1982 Aug 26 at UT 21:00 Arsyukhin (Moscow, Russia, 3" reflector) found that Poisson appeared hazy. The Cameron 2006 catalog ID=181 and weight=3. The ALPO/BAA weight=1.
Proclus 1969 Jul 22 UT 00:30? 01:15-01:25 observed by Classen (Pulsnitz, E.Germany, 8" reflector), Leroy (Pittsburgh, 21.5" reflector x310) and Cutter (Pennyslyvania) "Brightening of crater (Classen). Alternatate brighening of S.part of crater at 15s intervals (too long interval for atm.) while N. half remained constant. Leroy confirmed Cutter. (Both confirmed Classen Apollo 11 watch)." NASA catalog weight= 5. NASA catalog weight=1151. ALPO/BAA weight=3.
On 1969 May 24 at UT 02:40 Ricker (Marquette, MI, USA, 10" reflector) and Kelsey (Riverside, CA, USA, 8"? reflector). Ricker saw pulsations in Aristarchus, partly confirmed by Kelsey. Cameron comments that it is suprising that Aristarchus could be seen at first quarter - Apollo 10 watch. The Cameron 1978 catalog ID=1142 and weight=5. The ALPO/BAA weight=4.
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.
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.
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 1994 Apr 18 at UT14:40 C.D. Hua (China) found that the wall of Picard had changed to dark. The ALPO/BAA weight=1.
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.
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.
On 1993 Mar 30 at UT 19:30 an unknown British observer (Reading, UK) noted that the crater at the end of the Alpine valley looked unusual. However M. Cook (Frimley, UK) also observed the feature but found nothing unusual. The Cameron 2006 catalog ID=457 and weight=0. The ALPO/BAA weight=1.
On 1993 Mar 30 at UT19:35-21:15 J. Knott (England, UK, 8.5" reflector, x180 and x216, seeing=II and Transparency=good) observed at 19:35 the central peak of Alphonsus appeared to be extra bright although was normal later, however the observer suspects that this was a contrast related and was not confident to send out a TLP alert. The Cameron 2006 catalog ID=458a and 458b and weights=0. The ALPO/BAA weight=1.
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.
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.
Alphonsus 1958 Nov 19 UT 21:00-21:20 Observed by Hole (Brighton, England, 24" reflector x500) and Wilkins, Wall and Brewin (Located in Kent, and other locations in England, and 15", 12" and ?" reflector telescopes) "Reddish patch on c.p. (S. of it) about 3 km in diameter. (indep. confrim)." NASA catalog weight=5 (very high). NASA catalog ID 706.
2 deg S of Maskelyne (29E, 1N) 1969 May 25 UT 01:15-01:56 Observed by Jean, Barry, Bernie, (2) Madison (Montreal, Canada, USA, 4" refractor) "Very vis. pink patch red as seen thru a yellow filter. Photo of bright red spot nr. Mask. (confirm. -- Apollo 10 watch)" NASA catalog weight=5 and 5. NASA catalog ID #1145. ALPO/BAA weoight=3.
Hercules 1970 Apr 14 UT 23:10-23:45 Observed by Jean Nicolini (Sao Paulo, Brazil, 12" reflector, x680) "Vis. reddish-brown hue to shaded area. In crater -- different from Atlas. Phenon. stayed after moving telescope. Photos obtained. Not chrom. Abber. (Apollo 13 watch)" NASA catalog weight=5. NASA catalog ID #1251. ALPO/BAA weight=4.
Fracastorius 1975 Apr 19 UT 19:47, 20:40, 20:45 Observed by Robinson (Teignmouth, UK, 26cm reflector) "Fracastorius had a blink - it was bright in red and darker in blue at these three times, and probably in between. This was possibly natural surface colour being detected?". ALPO/BAA weight=1.
Mare Crisium 1975 Apr 19 UT 19:47-20:37 Observed by Robinson (Teignmouth, UK, 26cm reflector) "Mare Crisium N. end of floor - blink (red and blue filters) in patches, bright in red. Blink stops at 20:37". ALPO/BAA weight=1.
On 1975 Apr 19 UT 21:09 P. Foley (Kent, UK), detected blue in Plato on east. Fiton at UT20:45 found blue along the south wall at the east (IAU?) end, which was very bright white. Blueness extended towards the large landslip at the east of the formation. Immediately north of the landslip, where the bright wall curves first westwards, then again northwards, red could be faintly detected, folloowed by a very faint blue. All other parts of the formation were normal. Examination with a Moon blink device revealed no colour blink. J-H Robinson also found blue, with red on the west wall (exterior?). By 21:30UT Fitton found Plato to be normal and so was Proclus, though he did find Epigenes (bright cresecent of east wall only) slightly blue to the N.W and red to the S.E. Mare Crisium was normal. Prominent spurious colour seen on Venus, but it was low in the sky, with blue to the north and red to the south. However J.H. Reading, managed to see the north east floor blurred and slightly blue from 22:45-23:00UT. These reports are BAA observation. The ALPO/BAA weight=2.
Alpetragius 1958 Nov 19 UT 22:00-22:05 Observed by Stein (Newark, New Jersey, USA, 4" refractor) "Shadow anomaly. Portion of shadow vanished, replaced by lighter shade. At 22:05 gradually darkened & was normal in 20 sec." NASA catalog weight=3. NASA catalog ID #704. ALPO/BAA weight=2.
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.
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 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.
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.
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.
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.
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.
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.
Tycho 1970- Apr 15 UTC 22:00-23:00 Observer: Nelson Travnik (Matias Barbosa, Minas Gerais, Brazil, 4" refractor, x250 & x400, seeing excellent, Wratten 15 and 23 filters used) "Slightly pulsating white glow on W. (IAU?) wall's external slope (Apollo 13 watch). NASA catalog ID #1256, NASA weight=2. ALPO/BAA weight=2.
Manilius 1970 May 04 UTC 19:20 Observer: Mansfield (Cape Town, S.Africa), distinct pink colour noticed. NASA catalog ID No. #1294. Weight assigned to this observation by the NASA catalog was 3 (average).
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 1982 Oct 26 at UT 20:41-22:22 P. Madej (Huddersfield, UK, seeing=II and transparency=good) found that a blurring effect on the crater Yerkes had spread to Picard (~3.5 deg brightness). The effect was not detected in yellow light from the Wratten 15 filter, but a brightness change was picked up in red Wratten 25 light. J.D. Cook found dark surrounding Picard bright illumination. The Cameron 2006 catalog ID=188 and weight=5. The ALPO/BAA weight=3.
Yerkes-Picard 1982 Oct 26 UT 20:41-22:22 and 21:31 Observed by Madej (Yorkshire, England, Seeing II, Transparency Good) and Cook (Frimley, England, Seeing=II, Transparency Good) "(Madej) could not focus Yerkes as well as could Peirce. By 2041 effect extended to Picard (~3.5 deg). In W15 filter not apparent, but albedo change was very marked in W25 red filter. (M. Cook) at 2222 noted faint orange around Yerkes E. Spurious color seen in other areas. Color around Yerkes intermittent. In blue filter it was still orange. (J. Cook) at 2131 noted S rim of moon was orange & seeing was such that it was fizzing. Around Yerkes only orange tint - tending intermittent" Cameron (2006) catalog ID #188 & weight=5 (very good). ALPO/BAA weight=1.
On 1990 Apr 05 at UT 00:43-01:46 D. Darling (Sun Praire, WI, USA, 3" refractor, x90) observed that Bullialdus (the crater was in shadow) was pink in colour on the edge of its wall. The effect lasted from 01:15- 01:44UT and he could discern the terrace on the western wall. Comparisons were made to Tycho and Copernicus - all of which were normal. The Cameron 2006 catalog ID=399 and the weight=3. The ALPO/BAA weight=3.
Tycho 1940 Dec 09 UTC 04:00? Observer Barcroft (Madera, CA, USA). The NASA catalog states: "Some luminosity on W. rim of outer slope". 6" reflector used. NASA TLP catalog assigns a weight of 3 (average). NASA catalog TLP ID No. #481.
Alphonsus 1969 Jul 24 UT 01:00-02:35 Observed by Fournier (Lowell, 6" reflector x158) and Dillon (Massachuchusets, USA) "Fournier saw obscur. & red in crater. 1 of the dark halos (NE) was very difficult to detect -- seemed to be a whitish mist. Detail best seen in blue & green filters. Dillon found halo much lighter than usual, with sharp boundary washed out. Halo was darker thru blue filter, indicating red when it's normally bluisg-green. Next nite it was normal. Worsening weather stopped obs. (confirmation. Apollo 11 watch)." NASA catalog weight=5 (very good). NASA catalog ID #1185.
On 1968 May 07 at UT 03:00-03:40 Kelsey (Riverside, CA, USA, 8" reflector) observed Messier and Messier A and noted the following: "The ray-tail halo (in N. ray) showed a possible enhancement in blue filter at 1st obs. per. but not seen at 0330. Later enhancement was indicated in red filter but not apparent at 0600h. The red enhancement is very unsual; but has been suspected on a few previous occasions. Not seen vis. (confirm. of Jean?)" The Cameron 1978 catalog ID= and weight=5. The ALPO/BAA weight=1.
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.
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.
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 Jul 20 at UT 18:50-22:40 P.W. Foley (Kent, UK, 12"reflector, seeing II-III) noted that the south wall of Plato at the 11 o'clock position, at the location of a cleft, was fuzzy on either side of the cleft. There was also a deep red colour along the cleft and the outside wall. The colour had gone by 22:40 though. All other parts of the rim of Plato were clear and distinct. M. Cook (Frimley, UK, seeing III) sketched some obscurations at 22:03UT. At 22:08UT the red colour reduced to a red line and vanished by 22:37. The south wall obscuration varied in size and there was a possible obscuration at the 7 o'clock position. J. Cook (Frimley, UK, seeing II-III) confirmed Foley's and M.Cook's observations. Detail inside the crater was sharp, but colour oppoiste to what is usual. Price (Camberley, UK, seeing IV-V) a few km away had atmospheric ripples affecting his observations. At 21:36UT G. North described the south wall as odd in appearance and the terrain south of this was lacking in detail - this was odd because elsewhere Plato was nice and sharp. At 21:45UT though the north section of the crater was a hazy red. The cameron 206 catalog ID=224 and the weight=5. The ALPO/BAA weight=3.
Campanus 2014 Jan 11 UT 22:00-22:30 S.Bush (UK, 6" SCT, x180, seeing average) made a sketch of the Campanus and Mercator craters. He found that the central peak of Campanus difficult to resolve and the floors of both craters were devoid of detail. Mercator was the lighter shade of the two floors. Earlier at 19:47 UT M.Brown (Huntingdon, UK) imaged this region and using Registax resolved details on the floors of both craters, though Mercator clearly was slightly lighter in floor shade and had less detail on its floor than Campanus. The most likely explanation was that it was just seeing effects blocking the visibility of detail - this of course is less of a problem for a Registax usid on the CCD image. However just to be sure this observation is being given an ALPO/BAA TLP weight of 1, to encourage visual observers to attempt this observation under similar illumination and seeing.
On 1983 Aug 19 at UT 07:15-07:30 D. Louderback (South Bend, WA, USA, 3" refractor, x150) found that the direct sunlit side of Mons Piton mountain (E) was brighter than (his designated) points C and D and this happened at the same time as some "blurring"at 07:15UT. The darker side, between C, A and B were not so dark through a red filter as through a blue filter (this was the opposite of what had been seen before at a high sun angle). Louderback suspects that there had been a colour change since he last observed. He also noted that in red light the whole lunar disk appeared fuzzy and out of focus. Louderback noted a 1 sec brightness on the east slope and the whole mountain sharp in blue light. The Moon's altitude was low though. Brightness measurements were 4 in blue light and >= 4.6 in red light and "so illdefined almost blended into plain". Cameon commnets that a telescope colour/focussing issue may have been at work here! The Cameron 2006 catalog ID=226 and weight=4. The ALPO/BAA weight=1.
Parry 1974 April 03 UT 01:10-01:45 Observed by Porter (Narragansett, Rhode Island, USA, 6" reflector, S=F, T=2) "Darkening of floor & brightening of central crater. Pulsations for 1 min. Albedo of LTP=2 (fl.), 6.5 (c.p.). Normal floor=3?. Floor seemed darker than earlier & approached surrounding plain(=2) while N-S streak seemed more conspicuous. Pulsations same freq. as star excursions so prob. due to terr. atm. aberr. Streak most conspicuous at 0145h" NASA catalog weight=2 (poor). NASA catalog ID #1391.
On 1989 Jul 14 at UT 03:28 D. Darling (Sun Praire, WI, USA) found a darkening in the crater Proclus, but the shadow seen by Cook and Moore, from a few hours earlier was not seen. The Cameron 2006 catalog ID=371 and the weight=2. The ALPO/BAA weight=1.
Sinus Iridum 2004 May 29 UT 20:44 Observed by Clementelli (Rome, Italy, 102mm diameter Vixen refractor 80-160x, sky conditions: clear, no wind) "A blue/violet streak, lasting ~10 minutes was seen on the floor of Sinus Iridum between crater Bianchini and Promontorium Heraclides. The suspect TLP mybe an effect of instrumental achromatic aberration, but there is the small possibility that the effect was real." A UAI observational report. The ALPO/BAA weight=1.
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.
Archimedes 1979 Oct 01 UT 20:57-21:00 Observed by Cook (Frimley, UK, 13mm Monocentric + Barlow eyepiece, Seeing IV, transparency: thin cloud) "Red seen on east, blue seen on west - almost certainly spurious colour".
Bullialdus 1979 Oct 01 UT 21:04-21:07 Observed by Cook (Frimley, UK, 13mm Monocentric + Barlow eyepiece, Seeing IV, transparency: thin cloud) "Red seen on east, blue seen on west - almost certainly spurious colour". ALPO/BAA weight=1.
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.
Aristarchus 1989 Jul 15 UT 02:00-04:20 Observed by Manske, Weier, Curtis, Keyes, Yanna, Norman, Knutson, Sullivan, Eichman and Radi (Carl Fosmark Jr. Memorial Observatory, Madison, WI, USA, SCT C11) "Manske initially observed a reddish tinge on the SE rim of Aristarchus. The colour was present in different eyepieces. Two other pinkish tinge areas were seen on the SE and NE rims. 4 of the observers did not see colour. Independent confirmation was made by Don Spain (KY) and Smith in LA. Full details can be found on the following web site: http://www.ltpresearch.org/ltpreports/LTP19890715.htm " An ALPO report.
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 1975 Feb 22 at 19:00-22:50 Fitton (Lancashire, UK, 8" reflector, seeing=II-III-I) saw Aristarchus (at 19:00UT) blue, with no obscuration visible in white, red or blue filters. This was not a telescopic effect. "Obs. 4.5h. Says it & next 5 nites obs. were due to high pressure system W. of obs.". Foley found nothing unsual in Aristarchus in his observing session, which overlapped Fittons. The 1978 catalog ID=1396 and weight=3. The ALPO/BAA weight=1.
On 1975 Feb 22 at 20:04-22:50 P.W. Foley (Kent, UK, 12" reflector, seeing=good) observed Prinz to have a diffuse white obsecuration. There were pulsations of 30-50sec intervals. Effect ceased at 22:50UT and indeed was fading earlier from 22:35UT. Photgraphs were taken but showed nothing unusual and no colour. Aristarchus was also negative. The Cameron 1978 catalog ID=1396 and weight=3. The ALPO/BAA weight=2.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5" reflector, x300) 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 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.
On 1992 May 13 at UT 20:16-21:29 several observers reported a TLP in Plato mostly concerning the visibility of floor craterlets, however observer seeing varied from III-V. North (UK, 18.25" reflector) reported "Colouration and floor craterlets very prominent. Seeing Antoniadi V, Transparancy Poor.". Foley (Kent, UK, 12" reflector seeing=III-IV) found the floor to be bright and in the better moment of seeing detected floor craterlets. The WNW spot was misty some of the time. Moore (Selsey, UK, 15" reflector, seeing V) had very poor seing conditions. J.D. Cook and M.C. Cook (Frimley, UK, 3.6" reflector, seeing II-III) used a CCD camera at 22:11 UT. The Cameron 2006 catalog ID=445 and the weight=5. The ALPO/BAA weight=2.
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 1983 Jul 21 at UT 21:02-23:18 P.W. Foley (Kent, UK, 12" reflector, seeing=III) found the region around the cleft on the souther rim to be out of focus - however atmospheric conditions were turbulent until 23:18UT. An unsual dark triangular region (long base against rim) was seen to extend from the inner rim at 12 o'clock onto the floor for 13- 16km. The crater had lots of detail elsewhere. M. Cook (Frimley, UK) found the south east to soth west to be obscured again, but not as badly as she had seen on the 20th July. J. Cook (Frimley, UK) found the dark region had 2 white bands on the side and the south west wall was blurred like it was on the 20th July - this time tough colour was not present. There were also two light patches on the floor. Mosely (Coventry, UK) observed the south wall at x120 and found the wall out of focus at the 11 o'clock location. Through a yellow filter he saw a "white mistiness: on the top of the southern rim and only the south east cleft could be seen (no colour). By 22:40-23:00 the effect had cleared up. No dark triangular patch was seen. When Marshall (Surrey, UK) observed (22:30-03:00) nothing unsual was seen, though a sketch provided shows a light patch on the floor located at 11 o'clock. All observations, made by all observers had some atmospheric turbulence, however trsnparency was good. The Cameron 2006 catalog ID=225 and the weight=5. The ALPO/BAA weight=3.
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.
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.
Interior bands were faint at 22:40 but sharper at 23:20. Observer noted some blue spurious colour to the north of Aristarchus but this had gone by 23:50.
Observer noted some variability in the brightness of Moltke and Torricelli B. This observation has an ALPO/BAA weight of 3.
Observer noted some variability in the brightness of Torricelli B and Moltke. This observation has an ALPO/BAA TLP weight of 3.
On 1983 Aug 22 at UT 05:44-06:33 D. Louderback (South Bend, WA, USA, 3"refractor, x150) found the brightness of Aristarchus (diffuse white patch) to be 7 to 7.5 but apparently it is normally 8-8.5, so fainter than normal. Another brightness reading found "brightening then nearly extinction at S. wall similar to changes seen on Eimmart before. Watched fluctuation compared to Cobra Head, they were similar but more pronounced at Aristarchus" especially in blue light compared to red (although there was a little brightness in red). Timings of these fluctuations were 7sec, 7sec, 9-10sec and 9-10sec. The latter two might have been seeing related as the crater enlarged up at these times. The observer felt that the Cobra Head appeared fainter than the previous year and had faded during the second set of brightness measurements. Cameron 2006 catalog ID=227 and weight=3. ALPO/BAA weight=2.
On 1983 Aug 22 at UT05:44-06:33 D. Louderback (South Bend, WA, USA, 3" refractor, x150) found that Mons Piton was still brighter in red light than in blue - the opposite was found in his July observations. The Cameron 2006 catalog ID=227 and the weight=3. The ALPO/BAA weight=2.
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.
Galvani B: On 2019 Sep 13 UT 23:26 K. Kilburn (Manchester, UK, BAA - ED80 refractor, x2 Barlow, Canon 550 DSLR) took a sequence of images from 23:25-23:27 UT. On one of the images, taken at 23:26UT there is a blue/green spot on Galvani B. There is a hint of a possible fade of the spot in the other images but this is not conclussive. Te spot might just be a cosmic ray event or a bright part of the crater rim coming into view under brief exceptional seeing for one frame only. We need simlar illumination, and if possible topocentric libtation images, under different atmospheric conditions to confirm this. It would be great if the images were in colour too. The ALPO/BAA weight=1.
On 1988 Apr 18 at UT 19:00 R. Manske (Madison, WI, USA) observed that Aristarchus? was glowing in Earthshine. Weier (Madison, WI, USA) detected it easily in 7x50 binouculars. Spain (Fairfield, KY, USA) though detected no TLP, nor could he see Aristarchus. The Cameron 2006 catalog ID=324 and the weight=0. The ALPO/BAA weight=1.
On 1970 Jul 06 at UT 22:45-23:45 Celis (Paso Hondo, Chile, 3" refractor, x60, x100, x135, seeing=very good) saw Aristarchus as an outstanding bright patch (10 deg bright) electric blue colour, every 10 sec groups of 3 or 4 separate sparkles for 10sec then a period of calm for 30sec-1min. At 130x was almost constant form. Sometimes the form would be radial like an open band with extended fingers. This was observed in the dark part of the Moon and Cameron suspects atmopsheric effects. The Cameron 1978 catalog ID=1264 and weight=2. The ALPO/BAA weight=2.
On 1980 Nov 10 at UT18:05 J-H Robinson (Teighmouth, Devon, UK, Seeing III, Transparency poor, Filters Wratten 25 (red) and 44A(blue)) found the area to be bright in red and dull in blue - but suspected that this might have been a permanent colour blink e.g. natural colour. This does not have an entry in the 2006 Cameron catalog. ALPO/BAA weight=1.
On 1980 Nov 10 UT 17:55-18:15 J-H Robinson (Teighmouth, Devon, UK) observed the floor patches in Plato to be easy in red, but not so well seen in blue. This is a BAA Lunar Section report. ALPO/BAA weight=1. Note the month or day must be wrong!
On 1990 Apr 28 at UT 01:19-01:25 F. Graham (Marshall TWP, OH, USA, 6" reflector) during a failed attempt to observe the occultation of X6493 that was thwarted by clouds, noticed that Gassendi was "Gass,>>,>Aris or anything else". The crater had a "milky lustre". It is possible that another occultation observing group may have a video of the Earthshine at this time. Darling (Sun prairem WI, USA, 20x50 binoculars) could not see Earthsine, though the sky was bright at the time. The Cameron 2006 catalog ID=402 and the weight=0. The ALPO/BAA weight=1.
East of Picard (56E, 15N) 1877 May 15 UT 20:30 Observed by an unknown observer (in England?) "Bright spot. (white patch) there unlikely to be bright at sunrise normally)." NASA catalog weight=3. NASA catalog ID #189. ALPO/BAA weight=2.
On 1978 Jan 12 at 08:21UT (assuming this is not local time) V.A. Golubev (Ussurian Sam Station, Vladivostock, Russia, x100) saw on the western edge of the Moon an occultation of the magnitude 6? star ZC2394. Just prior to the occultation, between the star and the dark limb could be seen a bridge of light. The ALPO/BAA weight=1.
Bright spot (in dark part of Moon - confirmation of Arkhipov?). Cameron 1978 catalog weight=5 and Cameron 1978 catalog serial No. 418,
On 1970 Jul 07 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3" refractor, x60, x100, x135, seeing=good) observed the following in Aristarchus: "Similar conditions as last night (#1264) but diminished in brightness to 40% (to 6deg bright. Real phenom. in the dimming?)". The Cameron 1978 catalog ID=1265 and weight=3. The ALPO/BAA weight=3.
On 1980 Nov 11 at UT17:35-18:32 G. Blair (Weir, Scotland, UK) at 17:35UT immediately noted that the Earthsine was extremeley bright. All large detail easily seen on unilluminated disk. 17:38UT a definite pale reddish brown tinge enveloped the Aristarchus area. 17:39 seemed to be getting larger and more intense west (IAU) side. Attempted to contact other observers. 17:40UT Aristarchus still had a bright central peak. 17:50UT fading a little from the west (IAU). 18:00UT slight revival in brightness. 18:15UT effect still visible when Aristarchus set behind a high western horizon. The two sketches supplied show the illuminated region around the crater with extension to the west (IAU). P. Foley (Kent) found thatAristarchus was bright enough in Earthshine to be seen with the naked eye. Telescope in operation at 18:00UT and the entire Aristarchus region was bathed in violet/rose colour with what appeared to be a strong ray extending to the west (IAU). Detail could be clearly seen inside Aristarchus crater such as the central zone, west and north wall and rim in relief from point southeat to northwest. CED measure 0.8 (white), 0.9 (blue), 0.2 (red). No other reading in Earthshine gave a measure in red. Observation ceased by 18:32UT as the Moon was very low. ALPO/BAA weight=3.
In 1948 Aug 09 at UT 02:40 Woodward (Toronto, Canada, sky very clear) observed, using a telescope, a bright, bluish-white to greyish-yellow, 3 sec duration flash in Earthshine. The flash was between magnitude 0 to 1 if one were looking for a similar magnitude star in the sky without a telescope. There was possibly a very slight motion of the flash in a southerly direction. Also there were two terminal bursts. Cameron suggsts that this might have been a meteor? Ref: Moore, P.A. Guide to the Moon (1953), p117. The Cameron 1978 catalog ID=508 and weight=0. The ALPO/BAA weight=1.