On 1992 Jun 04 at 01:28UT whilst driving home K.Jenks (NASA JSC) observed with the naked eye a bright flash near to and slighly south east of the middle of the Moon. ALPO/BAA weight=1.
Bright point on dark part. Cameron 1978 catalog ID=38 and weight=5. ALPO/BAA catalog weight=4.
On 1978 Mar 13 at 17:25UT V.M. Chernov (Soviet Union) observed that the northern cusp was elongated into Earthshine, 4.6 days after New Moon. One day before this the cusps appeared nromal to him. The ALPO/BAA weight=1.
On 1988 Apr 21 at UT 01:28-04:00 D. Fryback (Madison, WI, USA) took a series of photographs - Aristarchus was a luminous patch and in one photograph a red spot (Cameron suspects marks on the film). is seen near Aristarchus. Strangely though when looking through the telescope, the crater was not excessively bright. D. Spain (Fairdale, KY, USA, 3.5" reflector?, x60) observed a narrow white streak of mag 5-6 of duration 0.5 sec that covered 160-320km near the centre of the Moon at 01:53UT. A similar streak happened but the direction was different. Next 2 small red flashes were seen at 02:00 and 02:01UT of magnitude 7 (<1sec) in the vicinity of Aristarchus. The cameron 2006 catalog ID=327 and the weight=1.
On 1988 Apr 21 at UT 01:53 D. Spain (Fairdale, KY, USA, 3.5" reflector?, x60) observed a narrow white streak of mag 5-6 of duration 0.5 sec that covered 160-320km near the centre of the Moon at 01:53UT. A similar streak happened again but the direction was different. Next 2 small red flashes were seen at 02:00 and 02:01UT of magnitude 7 (<1sec) in the vicinity of Aristarchus. The Cameron 2006 catalog ID=327 and the weight=1.
On 1968 May 02 at UT 01:20-02:14 Doughty (Red Bank, New Jersey, USA, 8" reflector, x120) observed a bright area in Aristarchus, surrounded by a faint glow. May have been atmospheric dispersion. Glow fainter at 01:56UT and imperceptible at 02:14UT. Kelsey and Ricker consider the observation abnormal. The Cameron 1978 catalog ID=1070 and weight=3. The ALPO/BAA weight=2.
1951 Apr 11 UT 02:39:30+/-15s L.T.Johnson (USA) observed a mag 7 flash S ofGrimaldi. ALPO/BAA weight=1.
In 1933 Mar 30 at UT 20:00 Douillet (France?) observed in the Aristarchus region: "White. (in the dark part)". The Cameron 1978 catalog ID=404 and the weight=2. The ALPO/BAA weight=1.
On 2012 May 25 UT 05:35 Brenner F crater was recorded in a larger area image by M. Collins (Palmerstone North, New Zealand, ETX-90 with LPI imager (monochrome mode) - seeing not good). He took a sequence of 108 images from 05:35-05:40UT, and in the 65th frame, a light spot, approximately 4 pixels wide can be seen just outside the western illuminated rim of Brenner F. It is not visible in any other frames. The exposure time was 0.125 Sec. Because the western edge of the spot is very sharp, and the rest of the Moon is slightly blurred due to seeing, it is thought that this was most likely a cosmic ray event in the CCD camera - the 4 pixel width was perhaps contributed to by the image compression. It could also be some bright surface spot that was made invisible most of the time by poor seeing, and then during a brief period the atmosphere is sharp enough at that locality to make it visible. ALPO/BAA weight=1.
On 1985 May 24 at UT 21:01-22:40 P.W. Foley (Kent, UK, 12" reflector) observed that Aristarchus was very bright (varied) and had a strong (transient) red/rose colour and the crater floor was glowing. Detail was visible. Mobberley (Suffolk, UK) also found the floor of the crater to be "glowing". Photographs of Earthshine excellent. The Cameron 2006 catalog ID=274 and the weight=5. The ALPO/BAA weight=3.
On 1992 Dec 29 at UT 17:42-17:54 A. Dollfus (Meudon, France, 1m aperture telescope used) detected evidence for a dust cloud using CCD polarimetry. The ALPO/BAA weight=5.
On 1975 Dec 08 at UT18:00-20:40 P.W. Foley (Wilmington, Kent, UK, 12" reflector, x60-x624, seeing II, slight mist) found Aristarchus to be less well visible than features such as: Grimaldi, Reiner, Darwin/Byrgius, Kepler, Plato and Sinus Iridum. Earthshine was exceptionally good tonight and was orange/red in colour. Photographs were taken and these confirmed the apparent dullness of Aristarchus. ALPO/BAA weight=2.
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.
Theophilus 1971 Mar 02 UT 20:30-22:50 Observed by Ringsdore (Stoneleigh, England, 15" reflector, x360, seeing=good) "Suspected TLP on c.p. 2 other obs. did not confirm. Orange- pink glow. Faded for 10 min then reappeared." NASA catalog weight=2. NASA catalog ID 1286. ALPO/BAA weight=1.
On 1891 Nov 07 at UT=19:00 d'Adjuda of Lisbon, Portugal (seeing fair) whilst observing Aristarchus noticed that the crater appeared as very distinct luminous point in the dark. Cameron 1978 catalog ID=275 and weight=3. ALPO/BAA weight=1.
On 1984 Jul 05 at UT 00:00-01:25 Marshall (Medelin, Columbia, seeing=II) observed that Censorinus was much less bright than Proclus (confirmed by CED readings). Cameron 2006 catalog ID=247 and weight=3. ALPO/BAA weight=1.
On 1984 Jul 05 at UT 00:00-01:25 Marshall (Medelin, Columbia) found Proclus to be much brighter than Censorinus (which of the two was abnormal is a question) - though he thought that Censorinus looked dull. The Cameron 2006 catalog ID=247 and weight=3. The ALPO/BAA weight=1.
On 1992 Dec 30 at UT 17:36 A. Dollfus (Meudon, France, 1m aperture telescope used) detected evidence for a dust cloud using CCD polarimetry. The ALPO/BAA weight=5.
SE of Ross D 1967 Oct 10 UT 02:25-03:10 Observers: Harris (Tucson, AZ?) Corralitos Obs (Organ Pass, NM, USA, 24" reflector) "Bright area moved 80km/hr towards SSE & expanded as contrast reduced. Corralitos MB did not confirm" NASA catalog weight=3 (average). NASA catalog ID #1049. Reports in ALPO/BAA archive mention observations from Edmund Arriola & Robert Moody, Jr. 02:40-03:10 (19" Whittier College, x170 & x400, T=4, S=2-3) & Cross 02:25-02:38 (12" f/66 Cass, x400, T=6, S=1.5 to 1") - the latter although seeing low visual activity, apparently according to Harris, took some yellow light photos that showed high activity? ALPO/BAA weight=2.
On 1964 Jul 16 at 03:55-04:10UT Cragg (Mt Wilson, CA, USA, 6" reflector, x180, seeing 7, transparency 6) observed a pseudo hill (700m high) some 3 km in diameter and casting a shadow, south east of Ross D. The Cameron 1978 catalog TLP ID=830 and the weight=4. The ALPO/BAA weight=3.
On 1991 Jun 18 at UT 21:30? 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." The Cameron 2006 catalog ID=430 and the weight=5. The ALPO/BAA weight=1.
Madler 1971 Mar 03 UT 21:30-21:45 J Andrews (Christchurch, UK, 8.5" reflector, x240, seeing I) observed a red fan shaped area to the south of Madler - it covered part pf the mountainous area to the south. The colour started fading at 21:45UT and had gone within 5 minutes. ALPO/BAA weight=1.
Near Theophilus - south of Madler - 1971 Mar 03 UT 21:30-21:35, 21:47 Observed by Hedley-Robinson (England, 3.75" refractor, x164, S=G, steady haze) "Reddening in a fan form on bright area of that formation, but red did not extend fully over it. Blink patrol started at 2005h but no red till 2130h. Definte blink at 2147h" NASA catalog weight=3 (average). NASA catalog ID #1287.
Messier 1968 May 05 UT 01:35-03:35 Observed by Delano (USA). No oclour noticed with Moon blink device, but Messier A's W. wall did brighten slightly over the 2 hours of observations compared to Messier's W wall. The ffect was less marked in the 2nd hour. ALPO/BAA weight=1.
On 1871 Nov 20 at UT 17:30-19:30 H. Pratt (UK) saw one of the most spectacular TLP obscurations that he had ever seen in Mare Frigoras. He observed a kind of haze around the north west (NE?) slopes of Plato. This effect was not seen elsewhere and all objects in Mare Frigoris were indistinct or veiled. By 18:30 the effect was modified and by 19:30 very little trace was seen. Ref. from Corliss.
Plato 1886 Sep 06 UT 19:00? Observed by Valderama (Italy?) "Streak of light on dark floor of crater in shadow. (sunlight between peaks on walls?)" NASA catalog weight=0 (most unlikely to be a TLP). NASA catalog ID #251. ALPO/BAA catalog weight=1.
Plato 1887 Feb 01 UT 18:00 Observed by Elger (England) "Ill-defined shadow of peaks of W.border-in contrast to sharpness of mts. outside it. Never seen before. Such phenomena occur on floor, but never on ramparts. (Drawing)." NASA catalog weight=4 (high). NASA catalog ID #254. ALPO/BAA catalog weight=1.
Plato 1916 Jul 8 UT 19:00? Observed by Markov (Russia) "Light on the shadow of the bands at the bottom (similar to #362)" NASA catalog weight=3 (average). NASA catalog ID #364. ALPO/BAA weight=2.
On 1972 Feb 23 at UT0010-0035 Fornarucci (Garfield, NJ, USA, 6" reflector, x250, seeing=fair and transparency=3.5). Shading usually visible west of it was not seen. Cameon comments that the albedo must have been at 5, where normally it is 4.5 and the nearby plain is 5). Cameron 1978 catalog ID=1322 and weight=2. ALPO/BAA weight=2.
Plato 1907 Jan 22 UT 20:00 Observed by Fauth (Germany?) "Glow of light in part of crater" NASA catalog weight=3 (average). NASA catalog ID 327.
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.
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.
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.
On 1988 Mar 26 at UT20:00 M.C. Cook (Frimley, UK, Frimley, UK, 12" reflector, seeing=III) reported Cenosrinus to be "foggy/fuzzy" and this this effect was not seen in other adjacent regions. The cameron 2006 catalog ID=320 and weight=4. The ALPO/BAA weight=2.
On 1980 Jan 26 at UT21:35-22:25 Blair (Refrewshire, Scotland, 10" reflector, 83-276x, seeing=III-IV and transparency poor) discovered a bright spot on the north rim and through filters it "flashed" green, red and blue. Clouds interupted observing, but when they cleared the effect was still present. Other craters did not show this effect. Cameron catalog ID=83 and weight=4.
On 1993 Jan 02 at UT 17:42 A. Dollfus (Meudon, France, 1m aperture telescope used) detected evidence for a dust cloud in Langrenous crater using CCD polarimetry. The ALPO/BAA weight=4.
Plato 1964 Nov 14 UT 01:00? Observed by Bartlett (Baltimore, MD, USA, 4" refractor?) "Peak on E. wall brilliant white, strong blue band at inner base; on S. wall was a small, bright red spot." NASA catalog weight=4. NASA catalog ID #864. ALPO/BAA weight=3.
La Hire 1887 Feb 02 UTC 20:00? Observed by Klein (Cologne, Germany, 6" refractor) "Intense yellow streak that cast shadows around neighboring features". NASA catalog weight=4 (good). NASA catalog ID #255.
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=3.
Archimedes 1973 Jan 13 UTC 19:06-19:40 Observed by Theiss (51N, 9.67E, 75mm refractor) "Yellow to green colours at wall of Archimedes, became stronger until 19:09UT, constant brightness until 19:10UT and dissappeared at 19:16UT" Ref: Hilbrecht & Kuveler (1984) Moon & Planets 30, pp53-61.
Proclus 1973 Jan 13 UTC 19:30-19:35 Observed by Krojer (48.25N, 11.5E, 60mm refractor) "North East wall of Proclus extraordinarilly bright, observation interrupted by fog." Ref: Hilbrecht & Kuveler (1984) Moon & Planets 30, pp53-61.
Censorinus 1973 Jan 13 UTC 20:02-20:14 Observed by Leitzinger (48.25N, 11.5E, 60mm refractor) "Censorinus Extraordinarily bright, pure white" Ref: Hilbrecht & Kuveler (1984) Moon & Planets 30, pp53-61.
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.
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.
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.
Proclus 1989 Jul 13 UT 21:04-21:13 Observed by M.Cook (Frimley, UK, 90mm Quastar Cat., Seeing III, transoparency hazy) and by Moore (Selsey, England) "Following an alert call by Miles concerning the crater Proclus looking different, Cook observed a circular dark patch that filled about half of the eastern half of the crater floor. To cut down the glare a blue filter was then used and a slightly less dark area was seen extending from this in a southerly direction. 8 rays were seen. The dark patch was confirmed by Patrick Moore. However David Darling (USA) who observed a few hours later on 1989 Jul 14 at 03:28 UT could not see this dark patch." BAA Lunar Section observation. The Cameron 2006 catalog ID=370 and weight=?. The ALPO/BAA weight=2
Scarcely a trace of nebulae tonight. As long as to June 10 at 2000UT? A little blackness remained. (P. Moore thinks it was a LTP, WSC it was a permanent feature?) Drawing. Seen by Nevelius Emmett, J. Boroughbridge, England. The 2006 Extension catalog by Cameron assigns an ID No. of 4 and a weight of 1. The ALPO/BAA weight=1.
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.
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.
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.
On 1985 May 30 P.Madej (Huddersfield, UK, 77mm refractor, x111 and x250, seeing II-III, transparency good) whole spectrum of colours seen on the central peak area, visible in both eyepieces, and was more prominent at the higher magnification. Not aware if the observer checked for this effects on other terminator peaks? xALPO/BAA weight =1.
On 1991 Jan 26 at UT 23:38-23:50 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x159 and 3" refractor x90, seeing 5/10, transparency 3/6) found that Aristarchus was brighter through a red filter than through a blue filter on its western wall. He checked Aristarchus in two telecopes and obtained the same result. The Cameron 2006 catalog ID=419 and the weight=4. The ALPO/BAA weight=3.
Aristarchus 1975 Dec 14/15 UT 17:05-00:30 Observed by Foley (Dartford, England, 12" reflector, S=II) and Moore (Sussex, UK, 15" reflector x250 S=IV) and Argent and Brumder (Sussex, UK). In early sunrise conditions, W. wall was less brilliant than usual -- matched only by Sharp, Bianchini, & Marian. Extraordinary detail could be seen on this wall. Also noted intense & distinctly blue color entire length of W. wall. 3 others corroborated detail, but not color. Moore found things normal & saw Aris. brightest at 2030-2125h tho Argent & Brumder made it < Proclus" NASA catalog weight=4. NASA catlog ID #1422. ALPO/BAA weight=1.
On 2013 Apr 22 UT 01:39-02:37 P. Zeller (Indianapollis, USA, 10" f/4 reflector, x200, seeing 6, Transparency 3 - scattered cirrus) observed visually (depicted in sketch) the two closely spaced NW wall dark bands) to have a rusty-red hue. The colour of these bands did not change over the period of the observing session. Images were taken, but resolution and image S/N is not sufficient to resolve separate bands here, or to detect colour. The ALPO/BAA weight=1.
On 1981 Aug 11 at UT21:05-21:36 G. North (England, seeing=poor) detected, in green light, a darkening on the floor of Plato. This effect was not seen elsewhere. J-H Robinson (Teighmouth, Devon, UK) detected on the SSE rim (inner and beyond) a triangle that appeared hazy in a wide range of filters at 21:05UT. However at 21:36UT it was only hazy in green and blue light. No similar effect was seen elsewhere. The Cameron 2006 catalog ID=150 and weight=5. The ALPO/BAA weight=3.
On 2017 Feb 08 UT 01:45 A.Martini Jr (10" Schmidt-Cassegrain with ASI 120 MC camera +IR filter, Gain 40, Gamma 36, exposure 0.003 sec) saw on a computer monitor screen a flash to far to the west of Herodotus and Aristarchus at the location 54.53W, 23.5N. It had a duration of 0.5 sec and on a brightness scale of 0 = night side of the Moon to 10 = Aristarchus, ranked 7. Unfortunately they were not recording at the time. As there was no confirmation observation and it could be a cosmic ray air shower detection, the ALPO/BAA weight=1
In 1934 Feb 25 at UT 18:30 Rawstron (USA?, 4" refractor, x250, S=6/12) observed in Pico B: "A large patch of haze appeared & drifted off across the mare in same direction as haze from Pico (white patch). It was obs. on 20 other occasions. Drawing". The Cameron 1978 catalog ID= 410 and weight=3. The ALPO/BAA weight=2.
Aristarchus 1967 May 20 UTC 20:15 Observed by Darnella (Copenhagen, Denmark, 3.5?" refractor) "Red spots on S.rim. Moon was low." NASA catalog weight=1 (very low). NASA catalog ID #1036.
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 1967 May 20 at UT 21:05-21:20 Kelsey (Riverside, CA, 8" reflector, x300) using an English Moonblink device found colour on the south west part of the floor. Note that for the times given by Cameron, the Moon was below the horizon from California - so possibly these are local times and these times need to be correctly converted into UT? The Cameron 1978 catalog ID=1037 and weight=3. The ALPO/BAA weight=1.
Gassendi. 2023 May 02 UT 01:35-02:23. J. Albert (Lake Worth, FL, USA - ALPO. 8” SCT via a 9mm ortho eyepiece. Transparency magnitude 3 and seeing was 7/10) checked the crater without filters as well as comparing with W25 red and W44A blue filters using 226x. He saw no color on the SW part of the crater floor or on the NW wall. Using the filters, however, he did note that the high peak on the S wall was brighter in blue than red. He tried this filter blink a number of times because he had never seen this before in Gassendi, but the result was the same each time. A colour image was taken earlier at 01:21UT but shows not colour on S wall as it was saturated. 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.
Gassindi 1966 Oct 25 UTC 22:30-23:10 Observed by Moore and Moseley (Armagh, Northern Ireland, 10" refractor) and Sartory (England, 8.5" ? reflector) "2 faint blinks (Eng.) on NW (IAU ?) wall. (Indep. confirm.?). NASA catalog weight=5. NASA catalog ID #987. ALPO/BAA weight=4.
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 1880 Jan 23 UT 20:00? Observed by Trouvelot (Meudon, France) "Luminous light like a luminous cable or shining wall". NASA catalog weight=3. NASA catalog ID #217. ALPO/BAA weight=2.
Aristarchus 1971 Mar 08 23:00-23:10 Observed by Lyttle (Northern Ireland, 6" reflector, x98) "Suspicion of white spot W of N-S radial band, slightly brighter than wall. Diam. @5-6km. Area affected by temp. ?Term. passed over it just 5h before. Gradual decline in brightness over the 10m period." NASA catalog weight=1 (very low). NASA catalog ID 1288.
On 1788 May 17 at UT 21:00 Schroter (Lilleanthal, Germany, 210x reflector) observed small depression, 1, near Aristarchus to be a bright spot, similar to Cameron 1978 catalog ID report #45. The Cameron catalog ID=48 and the weight=4. The ALPO/BAA weight=2.
NE of Philolaus 1948 May 20 UT 22:00-22:15 Observed by Baum (Chester, UK, 4.5" refractor) A distinct reddish tint suddenly appeared to the NE of the crater, and persisted for 15 min, before rapidly fading away. NASA catalog weight=3. NASA catalog ID #505. ALPO/BAA weight=3.
On 1985 May 31 at UT 20:23-22:00 G. North (Sussex, UK, turbulent seeing) found Torricelli B at 20:23 to be mauve in colour and to be very bright. However the colul had gone by 20:29UT. "Varied in albedo 2s then image blurred at 5-10s (atm) at 2034 became pink). At 21:35UT M. Mobberley (Suffolk, UK) found a white patch in the crater centre and a mag 8 flash was seen (confirmed independently by a 2nd observer ~ 113km away)- there was no shadow. At UT 20:30 P.W. Foley (Kent, UK, 12"reflector, seeing excellent) found no colour, but the brightness was changiong and he confirmed the bright patch on the crater's floor, variable 22:15-22:25UT, "then expanded over rim". The Cameron 2006 catalog ID=277 and weight=5. the ALPO/BAA weight=4.
In 1962 Dec 09 at UT 07:36 Wildey and Pohn (Mt Wilson, CA, USA, 60" reflector) observed that Oceanus Procellarum was 1.13 magnitudes brighter than normal. Observation at sunrise and is abnormal if area measured was mare. If it were an east facing wall it would be normal. The Cameron 1978 catalog weight=5. The ALPO/BAA weight=2.
In 1962 Dec 09 at UT 07:42 Wildey and Pohn (Mt Wilson, CA, USA, 60" reflector) observed that Aristarchus was 0.80 magnitudes (x2) fainter than average for this age (photometric measurement) Vmag=3.80, average= 3.0. The Cameron 1978 catalog weight=5. The ALPO/BAA weight=2.
Herodotus 1965 Jun 11 UTC 21:35-21:40 Observed by Porta, Garau (Mallorca, Baleares, 4" refractor x250) "Red glow in crater at 2140, then clouds stopped obs. After clouds, floor was abnormal rose color" NASA catalog weight=5. NASA catalog ID #879. ALPO/BAA weight=4.
On 1978 Mar 21 at UT 20:57 an Unknown observer observed a TLP in Aristarchus crater. The details for this report are still being looked up in the archives. In view of the uncertain details this TLP has been given an ALPO/BAA weight of 1.
Torricelli B 2002 Oct 18 UTC 20:56-21:59 Observer: G.North (UK, 8" reflector, x134, Seeing Antoniadi IV, Transparency good) - thought that Torricelli B was perhaps a little brighter than expected, especially when compared to Moltke and Censorinus based upon past recollection of relative brightnesses at this colongitude). Slight bluish tint seen as well. The ALPO/BAA weight=1.
On 1965 Jun 12 at UT > 00:00 an unknown observer (Porta?) reported that the area of Herodotus and the Cobra Head expanded and the colour went to rose. The next night the floor was normal. In filters, phenomenon accentuated in orange. The cameron 1978 catalog ID=880 and weight=3. The ALPO/BAA weight=2.
On 1975 Apr 23 at UT 20:30 J-H Robinson (Teighmouth, Devon, UK, 260mm reflector, x200). Observer was observing since 20:30UT, at 21:00UT though they noticed red on the outside south wall of Aristarchus, a hazy ill defined area that was larger in a red filter than in blue filter, and outside east wall was bright in red. At 21:08UT the outside west wall of Aristarchus no longer gave a colour blink reaction, and at 21:22UT the colour blink on the southern end of the crater ceased, but the image blur remained (in both red and blue filters) despite the rest of the crater being sharp in detail. Observations ceased at UT 21:35 because the blurring at the southern end seemed to be normal and this was confirmed when checked with photographic atlases. Other craters such as Proclus, Pickering, Tycho, Gassendi, Copernicus, Alphonsus, Plato, Menelaus, Manilius, Linne and Theophilus, showed no colour blink reactions. However Picard had a red bright blink from 20:30-20:40 and the permanant blink on the N. Floor of Fracastorius was detectable. Also Plato floor shadings were clearer in red than in blue - intermittently. This is a BAA lunar section observation. No estimation of transparency or seeing is given, nor any comment on whether spurious colour was seen in any craters visually. ALPO/BAA weight=1.
Gassendi 1987 Sep 05 UT 20:25 Observed by Moore (Selsey, Sussex, UK, Antoniadi III seeing, 12.5" reflector) "Intensely bright craterlet south of central peak, surrounded by a luminous nimbus. Foley (Kent, UK, 12" reflector)onfirmed the crater was highly luminous at 21:20, and surrounded by a blue halo that had a darker blue band within it. This craterlet faded over time, and by 21:20 Moore considered that it was no longer prominent, by 21:22 Foley confirmed the reduced brilliance, and by 21:30 Moore considered it to be perfectly normal. Moore considers the nimbus effect to be normal. The Cameron 2006 catalog ID= 306 and weight=5. The ALPO/BAA catalog weight=3.
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.
On 1987 Sep 05 at 20:55UT A.C. Cook (Frimley, UK, 90mm questar telescope, x130, seeing III-IV, Moon 16 deg in altitude) observed a dusky dark gray area just north of Herodotus and just south of the Cobra Head. The interior shadow on the east of Herodotus by comparison wad black and distinct. No change was seen when viewed through a rotated polaroid filter. Apparently D. Darling (Sun Praire, WI, USA) was observing at the same time but had better observing conditions and could see detail in this region, suggesting that it was not a TLP. There is no Cameron entry for this report. The ALPO/BAA weight=1.
Gassendi 1972 Feb 27 UT 23:15-00:10 Observed by A.Kemp (Cheshire, UK, 8.5" reflector x286) "Suspicion of blink between Gass. c.p. & Gass A. Clouds prevented confirm. Hedley-Robinson didn't see anything unusual earlier (20:00-20:20)." Note that the duration of the event, or indeed precise UT at which it was seen is not given. NASA catalog weight=1. NASA catalog ID #1324. ALPO/BAA weight=1.
On 1994 Apr 24 UT08:15 A.T. Brakel (ACT, Australia) noticed that Mare Frigoris appeared darker than the day before. This was during a Clementine watch. The ALPO/BAA weight=1.
On 1985 Sep 27 at UT 20:55 M. Mobberley (Suffolk, UK) found that the brightness of Torricelli B varied and starlike points seen in the crater. There is no Cameron 2006 catalog entry for this TLP report. The ALPO/BAA weight=2.
Aristarchus 1996 Oct 25 UTC 19:05-19:55 Observed by Livesey (Scotland, 65mm reflector x88) "red colour seen along E/SE rim and along S.edge of SW ray - colouration not visible on other craters. Observations terminated by hazy cloud drifting over Moon. Observer remarked that it looked like chromatic aberation, but telescope was a reflector and no colour was seen elswehere on the Moon. Cook (Frimley, Surrey, UK) 19:48-19:55 noted red on E. rim exterior and on SE part of central peak, and blue on N. rim - strongly suspected spurious colour". ALPO/BAA weight=1.
1975 Apr 18?? UT16:05-23:44 R. Billington (6cm refractor, x35 and x56). TLP faded at 17:50 but prominent again later. Intensity 8 at 16:05, 6.5 at 17:50 and 8 at 23:44. This is a BAA Lunar Section report.
1964 Jul 23 UTC 04:45-06:07 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=1-4, T=3) "S.region of floor was granulated & rated 6deg bright, rest of crater 8deg. Floor there was distinctly yellow-brown. Had never seen browns or yellows before June 25, 1964. (seeing true color of ground?)."NASA catalog weight=4 (good). NASA catalog ID #835.
Bullialdus 1979 Oct 04 UT 20:24-21:25 JH-Robinson (Devon, UK, 260mm Newt. x200 Seeing Antoniadi IV-V, Transp.=haze) observed a two bright points on the south west floor patch to be brighter in red than in blue at 21:12. The effect was still present at 20:36 but back to normal by 20:43-20:48. Amery (Reading, UK) found a possible brownish tinge on the west wall, though spuroius colour was present elsewhere on the Moon. Foley found the WSW corner darkened in blue light. Cook found pink on south rim of Bullialdus and Pedler found Bullialdus to be a confused mass with bright and dusky spots and patches - no colour seen. Cameron 2006 catalog ID=72 and weight=0. ALPO/BAA weight=1.
On 1985 Sep 28 UTC 20:54-23:52 P.W. Foley (Suffolk, UK) found (actually before 20:54 UT) brightness variance in Torricelli B. J.D. Cook (Frimley, UK) observed a brief blue coloured patch somewhere in the Torricelli B region, but could not pin it down precisely. At 22:50UT M.C. Cook (Frimley, UK, 30cm reflector, seeing III - occasionally V, transparency moderate to good) Found the crater to have an elongated appearance (in SSW-NNE direction) in white light, similar to the previous night. A bright elongated spot was seen on the NNE floor, close to where the wall should be. Not able to define the rim. There was a very dark surrounding area to the crater, similar to what it was on the previous night (roughly 1/4 brightness of Censorinus). 23:04UT brighter in yellow, then red, then blue. At 23:10 it was seen that blue filter dulled the crater - this was odd because both Censorinus and Proclus were brighter in blue, which is what he would normally expect. At23:15 UT Censorinus was brighter in blue, then yellow then red filters and some orange spurious colour seen to the south of Censorinus. At 23:23UT no spurious colour seen on Proclus or Censorinus. 23:46UT Torricelli B elongated as before, but a very faint ray might have been seen to the south west of the rim. This report is not in the 2006 Cameron catalog. The ALPO/BAA weight=3.
On 1994 Apr 25 at UT11:08 B. Soulsby (Australia) found a darkening on the north floor of Copernicus crater. The ALPO/BAA weight=1.
Aristarchus 1959 Mar 24 UT 04:35-05:15 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x180, S=3, T=5) "Strong blue & blue-viol. gl. on E.wall, EWBS, SWBS with intermittent display. At this time he noted in his 5-in L a total disappearance of viol. gl. & reappear. 1 min. later. Altogether, found 4 such occurences in his records, in '54, '57, ' & '59." NASA catalog weight=4. NASA catalog ID #716. ALPO/BAA weight=2.
On 1901? Nov 25/25 at 23:00UT Besanceas (France?) observed: "During lun. ecl. (mid-ecl. at 0118 on 26th) a bright area seen on moon. Another(?) obser. saw an obj. like a fiery comet leave the moon! (Date given by Midllehurst was 1900 but must be wrong-not FM then. FM in 1900 but no ecl. Partial ecl. on 10/27/01 at 0315. Ref. by M is wrong = 157)". The Cameron 1978 catalog ID=310 and weight=1. The ALPO/BAA weight=1.
Plato 1921 Nov 15? UT 20:00? Observed by Chernov (Russia, 2" refractor x94) "Temporary increase in brightness of the light band at bottom noted close to FM. Crater actively noted in Oct. 10." NASA catalog weight=1 (very low). NASA catalog ID #384.
Alphonsus 1958 Nov 29 UTC 22:00? Observed by Wilkins (Kent, UK, 15" reflector) "Near site of Kozyrev's outbreak saw a circular patch, black pit center, & red, round masses all around it." NASA catalog weight=4. NASA catalog ID #708.ALPO/BAA weight=3.
1964 Jul 29 UT 05:40-06:06 Observed by Bartlett (Baltimore, MD, USA) "Nimbus only -- dark viol. hue. S.floor granulated, dull -- 6 bright. Faint yellow-brown tinge. Rest of crater 8." S=6, T=3- 2. NASA catalog weight=4. NASA catalog ID #838. ALPO/BAA weight=2.
On 1988 May 18 at UT01:00-02:35 Lubke (Middleton, WI, USA, 8" reflector, x130) reported that Aristarchus glowed "like an out of focus star varying with the atmosphere". Darling (Sun Praire, WI, USA, 20x60 binoucular) and Spain (Fairdale, KY, USA, 7x35 and 20x60 binoculars, S= 6/10) found that both Copernicus and kepler were brighter than Aristarchus in Earthshine. Aristarchus itself looked unusual, though Spain did not see Aristarchus at all. Darling and Wieir (20x60 binouculars) agreed that it appeared as a star-like point in binoculars. Cameron 2006 catalog ID=326 and weight=0. ALPO/BAA weight=1.
On 1988 May 18 at UT01:00-02:35 Lubke (Middleton, WI, USA, 8" reflector, x130) reported that Aristarchus glowed "like an out of focus star varying with the atmosphere". Darling (Sun Praire, WI, USA, 20x60 binoucular) and Spain (Fairdale, KY, USA, 7x35 and 20x60 binoculars, S= 6/10) found that both Copernicus and kepler were brighter than Aristarchus in Earthshine. Aristarchus itself looked unusual, though Spain did not see Aristarchus at all. Darling and Wieir (20x60 binouculars) agreed that it appeared as a star-like point in binoculars. Cameron 2006 catalog ID=326 and weight=0. ALPO/BAA weight=1.
On 1988 May 18 at UT01:00-02:35 Lubke (Middleton, WI, USA, 8" reflector, x130) reported that Aristarchus glowed "like an out of focus star varying with the atmosphere". Darling (Sun Praire, WI, USA, 20x60 binoucular) and Spain (Fairdale, KY, USA, 7x35 and 20x60 binoculars, S= 6/10) found that both Copernicus and kepler were brighter than Aristarchus in Earthshine. Aristarchus itself looked unusual, though Spain did not see Aristarchus at all. Darling and Wieir (20x60 binouculars) agreed that it appeared as a star-like point in binoculars. Cameron 2006 catalog ID=326 and weight=0. ALPO/BAA weight=1.
On 1990 Apr 26 at UT 19:30-20:30 S. Beaumont (Cambridge, UK, seeing=II, very good) observed Aristarchus to be "very bright" in Earthshine - it varied in brightness. However she could also see the edges of the mare and the west limb clearly. Grimaldi was slso seen. Cameron suspects that these are atmospheric effects. The cameron 2006 catalog ID=400 and the weight=0. The ALPO/BAA weight=1.
On 1990 Apr 26 at UT 19:30-20:30 S. Beaumont (Cambridge, UK, seeing=II, very good) noted that Grimaldi was seen well however she could also see the edges of the mare and the west limb clearly. Cameron suspects that these are atmospheric effects. The cameron 2006 catalog ID=400 and the weight=0. The ALPO/BAA weight=1.
In 1821 May 04 at UT 21:30-22:00 Ward (England? Large aperture telescope, x80), Bailey (England?) and Olbers (Bremen, Germany, refractor) observed in the Earthlit part of the Moon an apperent small comet like feature extended from Aristarchus towards Grimaldi. The light was similar to a glow worm. The observer had never seen anything like it. The cameron 1978 catalog ID=89 and weight=3. The ALPO/BAA weight=4.
On 1988 May 19 at UT01:14-02:30 D. Darling (Sun Praire, WI, USA, 7x35 binoculars) was able to see Copernicus OK, Kepler (only just) and Aristarchus was invisible in Earthshine. He could not see the usual bright areas in Earthshine either. D. Spain (Fairdale, KY, USA, 3.5"reflector, x30-277) could not see anything in Earthshine. Lubke (Middleton, WI, USA, 8" reflector, x75 and x130) though was able to see Aristarchus and it was brighter than its surroundings, however it was a lot fainter than on the 18th May. Cameron suspects that this was atmospheric in origin and not a TLP. The Cameron 2006 catalog ID=329 and weight=0. The ALPO/BAA weight=1.
On 1989 Apr 09 at 00:00? R.Horton (N.Scituate, RI, USA, 6" reflector) found Aristarchus (and Kepler) to be much less bright than Copernicus. Photographs show this. The Cameron 2006 catalog ID=359a and the weight= 3. The ALPO/BAA weight=2.
On 1989 Apr 09 at UT 00:00? R. Horton (N. ScN. Scituate, RI, USA, 6" reflector) took an Earthshine photograph that revealed Copernicus to be brighter than Aristarchus and Kepler. Cameron comments that usually Aristarchus is the brighter and thought it a bit odd because Copernicus should have been less visible, being nearer the terminator3 The Cameron 2006 catalog ID=359a and the weight=5. The ALPO/BAA weight=2.
On 1989 Apr 09 at UT 00:00-04:45 D. Darling (Sun Praire, WI, USA, 11" reflector, 3" refractor, S=9/10 and T=6) observed the central peak of Tycho in Earthshine and that the crater "glowed". However Earthshine was exceptionally bright tonight. The Cameron 1978 catalog ID=359b and weight=3. The ALPO/BAA weight=1.
On 1990 Apr 27 at UT20:00-20:30 P. Mugridge (Surrey, UK) observed a bright light "sometimes 3 lights in form of triangle" in Oceasnus Procellarum (56W, ~25N), roughly mid way between Schroter's Valley and Briggs. "Haze surrounds as a mist or fog. poss. < at end of obs." Cameron comments that this may have been as a result of contrast in the strong Earthshine. Foley even contemplates if it was a misidentification of Aristarchus. Cameron comments that it is probably not due to terrestrial atmosphere. The Cameron 2006 catalog ID=401 and the weight=1. The ALPO/BAA weight=1.
Southern Cusps 1912 Jun 17 UT 20:00 Observed by Stolyarenko (Russia) "Sharply outlined edges of new moon easily extended in 25 deg band over unlit part. S. horn larger than N. one" NASA catalog weight=1 (very low). NASA catalog ID #340.
On 1989 Apr 09 at 02:13 was seen to be not very bright in binoculars, despite visibility of Earthshine in general as being exceptional. Darling confirmed this at 02:31UT, though it was quite bright in a 17" reflector,but Herodotus could barely be seen. Weier claimed to be able to see Aristarchus with the naked eye. At 02:08 the brightness was found to be 5.0 for several measurments. The observing team ware from the Maddison Asgtronomical Society, WI, USA. The Cameron 2006 catalog ID=359b and he weight=3. The ALPO/BAA weight=2.