On 1940 Dec 25 at UT 10:00? Haas (New Mexico, USA, 12" reflector?) observed the northern horn to be elongated by about 10'. The Cameron 1978 catalog ID=482 and weight=3. The ALPO/BAA weight=2.
On 1940 Dec 25 at UT 10:00? Haas (New Mexico, USA, 12" reflector?) observed the southern horn to be elongated by about 10'. The Cameron 1978 catalog ID=482 and weight=3. The 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.
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 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.
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.
Bright point seen near Plato. A much brighter one was near Aristarchus. Apparently seen by both Schroter and Bode. The Cameron 1978 catalog ID=43 and weight=5. The ALPO/BAA catalog weight=3.
On 1788 Apr 09 UT 20:00-21:00 Schroter (Liienthal, Germany) observed a bright spot 26" N of Aristarchus rim. Glimmering point became nebulous in Herschellan telescope at 161x. Changes were seen and it was brighter than Aristarchus. The was a confirmed observation by Schroter and Bode? The Cameron 1978 catalog ID=42 and the weight=5. The ALPO/BAA weight=4.
On 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 1969 Apr 20 at UT 20:00? Allen (Cambridge, UK, 8" refractor x50), seeing=good) saw an intense star-like point of 9th magnitude, with no angular diameter, 4-5x brighter than the surroundings in Earthshine. The observer did not think that it was a TLP, but Cameron considers the report is similar to many other TLP descriptions of Aristarchus in Earthshine. Marks (England, UK) who was observing at 20:20UT did not note anything unusual in Aristarchus. The Cameron 1978 catalog ID=1121 and weight=3. The ALPO/BAA weight=1.
On 1969 Jul 18 at UT06:15-08:00 Heath (Christchurch, New Zealand) noted that Aristarchus was brighter than normal (Apollo 11 watch). The Cameron 1978 catalog ID=1157 and weight=1. The ALPO/BAA weight=1.
On 1969 Apr 20 at UT 20:20 Marks (England, UK) noticed a patch on the western limb that was bright. He could distinguish Mare Frigoris, Aristarchus and the mare areas very easily. The Cameron 1978 catalog ID=1121 and weight=3. The ALPO/BAA weight=1.
On 1883 Mar 12 at UT 20:00 Hopkins (located somewhere in the eastern USA) saw a line of light-well seen (similar to Cameron's TLP catalog ID 235, except for the apparent phase. The Cameron 1978 catalog ID=235 and the weight=1. The ALPO/BAA weight=1.
Mare Crisium 1998 Jan 31 UT 17:15-17:35 R. Braga (Corsica (MI), Italy, 102mm f8.8 refractor, x180, with no diagonal, seeing II, Transparency poor). A very bright point located at 23N 54.5E this was normal! - what was unusual was that it vanished when viewed through a blue Wratten 38A filter (this filter absorbs red, UV, and some green light). The ALPO/BAA weight=2.
On 1980 Oct 12 at UT23:30 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x75, seeing 10/10) observed the crater to be glowing faintly - photos showed it to be blue. Cameron 2006 TLP catalog ID=113 and weight=3. ALPO/BAA weight=1.
Bright point seen near Plato. A much brighter one was near Aristarchus. Apparently seen by both Schroter and Bode. The Cameron 1978 catalog ID=43 and weight=5. The ALPO/BAA catalog weight=3.
Bright point 26" N of Aristarchus rim. Resembled one near Plato but less conspicuous. The was a confirmed observation by Schroter and Bode?
On 1903 Mar 03 at UT 20:00 Gheury (London, UK) observed a star-like point in the dark side in Sharp(?) "Gray-blue marbling, glimmering, intermittent. (indep. confrm. of Rey?)". The Cameron 1978 catalog ID= 316 and the weight=5. The ALPO/BAA weight=4.
In 1937 Feb 15 at UT 16:00? Arkhipov (Russia) observed in Cassini: "Blue-greenish scintillating spots at bottom of crater were vis. on ashen light background. (confirm of Andrenko?)". The Cameron 1978 catalog ID=419 and weight=5. The ALPO/BAA weight=3.
On 1969 Jul 19 at UT 06:30 Whelan (Wellington, New Zealand) observed a pulsating glow in Aristarchus crater, extending towards the north. The Cameron 1978 catalog ID=1162 and weight=2. The ALPO/BAA weight=2.
On 1970 apr 11 atUT 05:29 Lucas (San Diego, CA, USA, 10" refelctor, seeing=fair) and others (Oregon, USA) obtained a photometric record of light level changes in Grimaldi crater. Visible reports by others during the same time. The photometer paper chart pen moved off scale on a 10mV scale adjusted to 1000mV. The peaks correlate with the visible observers from California and Oregon. Bright flashes, 3-5 events (confirmation during the Apollo 13 watch). The Cameron 1978 catalog ID= 1237 and weight=5. The ALPO/BAA weight=4.
On 1983 Sep 11 at UT 23:52 K.P. Marshall (Columbia, 12" reflector, x268, seeing II), whilst sketching the crater Janssen noticed a tenuous red patch on the southern junction of the valley which joins Fabricius to A. Nothing resembling this found on nearby areas. The ALPO/BAA weight=1.
On 2010Apr18 at UT 20:45-21:00 P. Grego (St Dennis, UK, 17" reflector - first practice run) observed that Aristarchus in Earthishine was the brightest that he had seen it before. The effect had faded to normal in the next 15 minutes though. "The bright spot was initially thought to be part of the wall of Aristarchus, but on closer examination the spot was probably the crater’s central peak. At around this time I estimated the brightness of the peak to be around magnitude 8, but this is a poor estimate as no suitable comparison stars in the immediate vicinity of the field of view were to be seen. Aristarchus’ outline was visible, as was a clearly defined sweep of brightness to its west (presumably the high albedo markings southeast of Herodotus) and another illuminated area to the north of Aristarchus (presumably the Vaisala area), and a small illuminated patch on the eastern flanks of Aristarchus. No other areas of the Moon in earthshine appeared to be as bright as these markings, and there were certainly no other clearly- defined spots as brilliant as the one that lay in Aristarchus. A watch was kept until 22:00 UT, when the Moon went out of view behind a tree. During this period it appeared that the spot was becoming less bright and less clearly-defined, although the other albedo markings in its vicinity remained visible; this may have been a consequence of the Moon’s diminishing altitude. ALPO/BAA weight=1.
On 1939 Feb 23 at UT 23:00 Andrenko (Sao Paulo?, Brazil) observed Aristarchus as a bright spot -- bluish (Cameron says confirmation of Malakhov), The cameron 1978 catalog ID=445 and weight=5. The ALPO/BAA weight=3.
In 1821 May 06 at UT 21:45 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=5. The ALPO/BAA weight=3.
Messier 1981 Sep 03 UT 19:15-19:55 Observed by Evans (England, 254mm Newtonian, seeing II-III, transparency fair). "Messier was under going obscuration" BAA Lunar Section Circular report. ALPO/BAA weight=1.
Cusps 1953 Apr 18 UT 21:00? Observed by Wilkins (Kent, England, 15"? reflector) "Faint extension of the cusps. (high peaks in sunlight)." NASA catalog weight=2 (low). NASA catalog ID 558.
Cusps 1953 Apr 18 UT 21:00? Observed by Wilkins (Kent, England, 15"? reflector) "Faint extension of the cusps. (high peaks in sunlight)." NASA catalog weight=2 (low). NASA catalog ID #558.
Bright point seen near Plato. A much brighter one was near Aristarchus. Apparently seen by both Schroter and Bode. The Cameron 1978 catalog ID=43 and weight=5. The ALPO/BAA catalog weight=3.
Bright point 26" N of Aristarchus rim. Resembled one near Plato but less conspicuous. The was a confirmed observation by Schroter and Bode?
On 1962 Sep 05 at UT 00:48-00:55 Chalk (USA?) observed in the vicinity of Walther a faint point of light, near the terminator. Cameron suspects an illuminated peak in the dark. The Cameron 1978 catalog ID=767 and weight=1. The ALPO/BAA weight=1.
On 1965 Oct 01 at 04:00UT an unknown observer saw a TLP (feature name not given in the Cameron catalog - nor a description or reference). The Cameron 1978 catalog ID=897 and weight=1. The ALPO/BAA weigh=1.
On 1969 Jul 20 at UT 0530-0540 Younger and Byl (Victoria, BC, Canada, 48" reflector) saw a fuzzy brightening near Aristarchus of less than 0.5 minute of arc diameter (Apollo 11 watch). The Cameron 1978 catalog ID=1171 and weight=4. The ALPO/BAA weight=2.
On 1967 Jul 20 at UT 07:00 Whelan, (Wellington, New Zealnd) saw a pulsating glow from Aristarchus crater, and this continued, although less pronounced. This was during the apolo 11 watch. The Cameron 1978 catalog ID=1172 and the weight=2. The ALPO/BAA weight=2.
Proclus NW ray 2003 Sep 02 UTC 02:20-03:35 Observed by Haas (Las Cruces, NM, USA) "Everyone knows the bright ray running northwest from Proclus. In this view from 2:20 to 2:36, UT on September 2 I remarked a thin, pink southwest border to the ray. One thinks of chromatic aberration, and the position supports this interpretation; but other bright lunar features showed no such effect. The pink border lay 1 to 2.5 diameters away from Proclus (S=2, T=3.5). At 2:55, UT (S=1-2, S= 3.5) the border was gone; neither its appearance nor disappearance was observed. At 03:25 UT there is no sign of the pink border (S=2, T=3), moreover the Moon was lower, so atmospheric dispersion must be greater by now? 12.5" Newtonian x321 at 02:20-02:36, x202 at other times.?" Note that experiments to simulate spurious colour using Adobe Photoshop were able to recreate colour in the correct place on the NW ray - however there should have been colour reported on the SW ray too and there was no mention of this, therefore the observational report is intriguing. The ALPO/BAA weight=2.
On 1974 Feb Weith-Knudson (Copenhagen, Denmark, 12" refrlector, x72) observed a magnitude 7.7 flash (comparison between SAO093043=mag 7,8 and SAO093052 mag=7.5 that happened to lie in the field of view at the time) in Earthshine. The observer speculates whether this was a lunar meteorite impact or a reflection from an artificial satellite (or indeed as Cameron suggests from an Earth meteor?). The cameron 1978 catalog ID=1388 and weight=0. The ALPO/BAA weight=1.
M. Price of Camberley, UK noticed that an area in relation to the central area of the floor could not be resolved. Averted vision was used, but this did not help to resolve detail. The crater was close to the terminator and was in general sharply in focus apart from the suspect area. No spurious colour seen. Sketch supplied.P. Foley wonders if the effect was due to the resolution limit of Price's scope? Cameron 2006 extension catalog ID=78 and weight=2. ALPO/BAA weight=2. 6" reflector x64 and x120. Seeing=III-IV and Transparency=good.
On 1969 Jul 20 at UT 0845 McIntosh (Auckland, New Zealand, 14" reflector) saw Aristarchus crater to be brighter in red light. This was during the Apollo 11 watch. The Cameron 1978 catalog ID=1173 and weight=3. The ALPO/BAA weight=3.
On 1975 Mar 18 at UT17:30 M.Kidger (Winterbourne Down, Bristol, UK, 60mm refractor, x36, very good conditions with a very sharp image and the sky was almost perfectly clear apart from a very few small clouds). In Mare Crisium it was observed that only a ray of Proclus could be seen to cross the floor - normally there are at least four craters visible inside mare Crisium on good nights and at least one being visible under bad conditions. So despite it being very clear and the image quality being good, the observer found it odd that no craters were visible on the floor of mare Crisium. This is a BAA Lunar Section report. The ALPO/BAA weight=2.
On 1965 Oct 02 at 04:00UT an unknown observer saw a TLP (feature name not given in the Cameron catalog - nor a description or reference). The Cameron 1978 catalog ID=898 and weight=1. The ALPO/BAA weigh=1.
Theophilus 1972 May 19 UT 23:48 Theophilus observed by Ruchatz (51N 10E, 60mm refractor, T=4, S=2) "Diminution of brightness of the S wall for a short time" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
On 1985 Jun 14 UT 21:16-21:40 Observed by A.C. Cook Frimley, UK, 30cm reflector, seeing IV, transparency moderate, very litle spectral dispersion noticed - Wratter 25 and 44a filters used) UT 21:16-21:19 Censorinus slightly brighter in red and more detail seen. Observed other features before and after this. Checked again UT21:31-21:40 - same appearance. Torricelli and Torricelli B in comparison looked normal with other craters of similar size. ALPO/BAA weight=1.
Proclus NW ray 2003 Sep 03 UTC 02:46-03:07 Observed by Haas (Las Cruces, NM, USA) "The curious reddish edge to the conspicuous bright ray running N2 from Proclus is seen again (x321, x366 (S=1-3, T=3.5- 2.5). It lies on the SW side of the ray, with no corresponding blue border on its NE edge. The effect persists as the Moon drifts across the whole eyepiece field. However at 03:46 (x202) the coloured edge is not recognized now, but perhaps only because of worse conditions (S=3, T=2) 12.5" Newtonian reflector used." The ALPO/BAA weight=3.
On 1988 Jul 21 at UT 01:00? an Unknown observer (name and geographical position not given in the cameron catalog) detected a darkening on the floor of Proclus crater - this was also seen by other observers - some of whom were making observations independently. The Cameron 2006 catalog ID=330 and the weight=1.
On 2010 Apr 20 some time between UT 22:00 and 23:00 I. Bryukhanov (Minsk, Zeiss Refractor at the Minsk planetarium) observed an orange-brown tint a little to the west of Zollner and Kant craters. Apparently images were obtained. ALPO/BAA weight=1.
Sabine 1967 Sep 11 UT 00:32,00:45 Observers: Jean at al. (27 obs., 21 telescopes, Montreal, Canada, 3-6" refractors, reflectors) "A black, rectangular-shaped cloud vis. in M.Tranquill, moving W-E (IAU ?) & dissipated nr. term., surrounded by viol. colour. Bright yellow flash at 00:45, (obs. in response to request to obs. impact of Surveyor V at 0046) NASA catalog weight=3. NASA catalog ID #1043. ALPO/BAA weight=2.
On 1969 Jul 20 at UT09:30 Whelan (Wellington, New Zealand, 10" and 6" reflectors. Other observers involved were: Mackrell (New Zealand, 6" reflector) and Spellman (4" reflector) observed Maskelyne crater undergoing a whitish glowing brightening. Shadowy filling of whole crater. Apollo 11 watch. The Cameron 1978 catalog ID=1179 and the weight=3. The ALPO/BAA weight=2.
Posidonius 1969 May 23 UT 11:35-12:45 Observed by Osawa (Hyogo-ken, Japan, 8" reflector x286) "W.(ast. ?) rim of crater was yellow in integ. light, brownish to deep yellow in filter, with no blink. Hue seen thruout obs. (true ground color? or seeing ? or true LTP?) thin clouds. (Apollo 10 watch)". NASA catalog weight=3 average. NASA catalog ID #1141.
On 1970 Apr 13 at UT09:00-09:03 Whelan (Walters, New Zealand, using a 10" reflector) observed Menelaus to have a deep red cloud that seemed to surge upward from outside the southern edge of the crater wall and disperse around the outside edge, spreading out on reaching Mare Serentiatis. All clear again though by 09:03UT, (Apollo 13 watch). Drawing supplied. Cameron 978 catalog ID=1246 and weight=3. ALPO/BAA weight=3.
Large plume-like diffuse cloud over central peak, very large compared to central peak (@ approx 30km diameter) with intensity much different from other parts. Brightness between walls and shadowed floor. Would take 3 minutes to collapse, so continuously fed. 13-14 days later, at SS, central peak was normal. Kuiper took photos after Kozyrev's observations, but saw nothing abnormal. Drawing. Haas saw nothing in 12inch reflector at the time. Cameron 1978 catalog TLP ID=705 and weight=4. ALPO/BAA weight=2.
Alphonsus 1966 Jun 26 UT 04:30-04:40 Observed visually by D.Harris and E.Arriola (Whittier, CA, USA, 19" reflector x146, and spectrum, S=4, T=1-0) "Absorp. spectrum (visual) of c.p. band at 475+/-5nm (1st est.); 2nd est. at 485+/-5nm. Band degraded towards the viol. Band nr.Hydrogen Beta. as if abnormally broadened. So sign of anything unusual visually in central peak in white light. Absorption appeared only on C.P., not over walls. Calibration corrections put band at 491+/-4nm" NASA catalog weight=5. NASA catalog ID #948. ALPO/BAA weight=5.
Aristillus 1973 Apr 10 UT 20:18-20:24 Observed by Pasternak (53.33N, 7.5E, 75mm refractor, T=3, S=3) "Faint reddish area at the SE wall of Aristillus" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
Near archimedes 2001 Sep 25 UT 08:30 Observed by Try (Whangarei, New Zealand, 4" f/10 reflector) "observed two possible L.T.Ps. on the edge of the terminator near the crater Archimedes. They appeared to be two bright points of light about the size of Mount Piton. They seem to form a triangle with Mount Piton. He observed them for two hours and they were still visible when he ended his observing session. He was observing with a 4" f10 reflector. Then Moon age was 7.9 days old and the colongitude was 4.83. submitted a drawing showing the area where the lights were observed." ALPO report. ALPO/BAA weight=1.
Alphonsus 1960 Jan 06 UT 18:00 Observed by Warner and Hole (London, England, 18" refractor and 24" reflector, Moon blink used) "Red spot. Hole saw this on several other occasions(indep. confirm)." NASA catalog weight=5 (very good). NASA catalog ID 727.
On 1988 Jul 22 at UT 02:15-04:00 P.W. Foley (Kent, UK, 11" reflector) made a sketch of a dark area of the (East) floor of Proclus that revealed a large anomalous dark region - there should be no shade here when the sun is at an altitude of above 50 deg!. BAA lunar section archives reveal similar dark shadings - however on this night it was a different shaped dark area. The appearance was confirmed by several observers. Foley reported that the region affected stretched from Proclus to Theophilus. The TLP was seen in the USA too by D, Darling as early as 01:31UT and by others on his TLP network - brightness measurements of the "c.p." were 3.5 and the remainder of the floor was 5.5. However the observers did not all agree on the same position for this dark area. The Cameron 2006 catalog ID= 331 and the weight=2. The ALPO/BAA weight=2.
Jansen 1966 Aug 24 UT 04:15-04:25 Observed by deBerard (Flossmoor, IL, USA, 6" reflector, x360, S=V, moonblink used) "Bright green glow -- using red & blue filters & green polariz. filter." NASA catalog weight= 3 (average). NASA catalog ID #965.
Herschel 2005 Aug 13 UT 00:07-00:29 Observed by Daniel del Valle Hernandez (Aguadilla, PR, 8"SCT, x225, S=7, T=4) "Interesting configuration of shadows with umbra and penumbra. Effect seemed to reduce over time." An ALPO report. The ALPO/BAA report=2.
Flash seen in Ptolemaeus (A?) - possibly a meteor. Cameron 1978 catalog weight=1. Cameron 1978 catalog ID=863.
Proclus 1970 Jul 11 UT 20:35-20:45 Observed by Dean, Jamieson, Sparks (Ruislip, ------, England, 6" relector x156) "Dean saw something in Proclus, alerted Jamieson who saw nothing unusual at 2043h, but tho't Secchi was quite bright. At 2035 Sparks saw Proc. fluctuate. Red & blue filters showed some reduction in brightness. E. edge showed darkening, but not as dark as in shadows. 10 min later, returned to normal. (Sparks confirmed Dean)." NASA catalog weight=5. NASA catalog ID #1267. ALPO/BAA weight=3.
1970 Jul 11 UT 20:35-20:45 During a TLP alert for Proclus, Jamieson saw nothing unusual, but found instead that Secchi was quite bright. NASA catalog weight=5 (very good). NASA catalog ID #1267. ALPO/BAA weight=1.
On 1941 Jan 06 at UT04:00 Barcroft (Madera, CA, USA, 6" reflector) saw an anomalous shadow in Arzachel crater. Cameron 1978 catalog ID=482 and weight=3. ALPO/BAA weight=3.
2009 Apr 13 UT 18:55-20:00 J. Adee (UK) and later A. Jarwaski (UK) saw Mons Pico to be incredibly bright. Adee reported naked eye visibility, though this does not show up in later CCD images. Jarwaski saw another nearby Mt very bright as well. This has been assigned an ALPO/BAA weight of 1, though I suspect it is just normal for Pico to get quite bright at sunrise.
Patches of brightness seen in the area between craters Aratus and Joy. Seemed to the observer to be perhaps slightly brighter than one would expect - the observer thought that their observation only barely constitured a TLP but decided to send the report in anyway. This has been assigned an ALPO/BAA weight of 1.
Apr 25 UT 20:20 Observed by Bentley (England, 8" rteflector x320, S=VG) "Flashing star-like pts, in area beyond the terminator, (atmosphere?)" NASA catalog weight=1. NASA catalog ID #1124. ALPO/BAA weight=1.
Plato 1970 Apr 15 UT 05:38-05:40,05:51-05:53 Observed by Cross (Las Cruces, NM, USA, 108mm Schiefspiegler or 152mm refractor, S=6, T=5.5=VG). The observer noted a lack of detail inside the crater floor, despite visibility of detail outside the crater. Spectra were normal for color. (obs. similar to historic reports. Apollo 13 watch?)" NASA catalog weight=1 and catalog ID #1253. ALPO/BAA weight=2.
On 1989 Jun 12 at UT 21:18-22:25 G. North (Herstmonceaux, UK, Coude, seeing=V) noted at 21:18UT that Torricelli B was "barely visible"- possibly this was seeing related. M. Cook (Frimley, UK, 8" reflector, seeing=IV) found Toricelli B to be ëxtremely dull - impossible to judge shadows on floor in contrast to Cens." Holmes (Rockdale, England, UK, 8" reflector, seeing=II-III) at UT21:30 also found Toricelli B difficult to find at magnifications less than 200x. Cameron comments that "Dulling is common on it at high Sun but illumination doesn't seem to be the cause or related". The Cameron 2006 catalog ID=365 and weight=5. The ALPO/BAA weight=2.
Alphonsus 1958 Dec 19 UT 20:00? Observed by Wilkins (Kent, UK) described in the NASA catalog as: "Reddish patch on central peak" 15" reflector used. NASA catalog weight=4. NASA catalof TLP ID No. 711. ALPO/BAA weight=3.
On 1994 Apr 19 at UT 22:00 R. Knopp (Berlin, Germany) noticed a darkening of the interior of the crater Atlas. The ALPO/BAA weight=1.
On 1988 Jul 23 at UT03:07 D. Darling (Sun Praire, WI, USA, 12" reflector, x150, seeing = 6/10) discovered that the dark area on the floor of Proclus, seen earlier by UK observers was still present, but less so (?) and the shape changed. When viewed through a green filter it was less distinct. "Change with two other filters. Polarizer gave a circular shape with a knot on SE side & W58 in White." The measured brightness of Proclus was 9 on three sides and 8.5 on its west rim. The floor was 5.5, but the dark spot was 4. Alphonsus, Bullialdus, Copernicus, Eratosthenes, Plato and Ptolemeaus were all normal. The Cameron 2006 catalog ID=332 and the weight=1. The ALPO/BAA weight=1.
Eratosthenes 1954 May 11 UTC 20:00 Observer: Catermole (UK, 3" refractor) "Central peak invis. tho surroundings were sharp". NASA catalog ID #563, NASA weight=4 (high). ALPO/BAA weight=2.
Alpetragius 1889 Sep 4 UTC 02:30-03:00 Observed by E.E. Barnard (Lick Observatory, CA, USA, 36" refractor x150, x700) "Shadow of CP diffused & pale. Entire inside of crater seemed filled with haze or smoke. Shad. of E.wall was black & sharp. CP & floor seen thru haze. No other craters showed this appear. (date&time rep't=Sep3, 1830L.T)." N.B. Sun above the horizon at 02:30 - sun sets at Lick at 02:37! NASA catalog weight=4 (good). NASA catalog ID #264. ALPO/BAA weight=3.
Plato 1982 Nov 24 UT 22:00-23:30. K.P. MArshall (Columbia, 12" reflector, x100, x200, x480, seeing III, reasonably steady, but some turbulence. No craters could be seen on Plato's floor, despite observing conditions being acceptable. The floor was evenly toned, and the walls were sharply defined. By 23:10 there was a suspicion that the central craterlet was there, but he could not quite make it out, even with averted vision. ALPO/BAA weight=1.
Tycho observed by G. North (UK) seen to have greyness inside parts of its shadow. Confirmed by J.D. and M.C. Cook Possibly light scattered of illuminated wall into shadow or highland starting to break through the shadow. ALPO/BAA weight=2.
Plato 1952 Apr 04 UT 02:45 Observer: T.A.Cragg (Mt Wilson, CA, USA, 31cm reflector, x420, seeing fairly good, transparency fair) - Obscur. of floor (seen a few hours after Wilkins & Moore obs. confirm.?) " - indeed Haas in Stolling Astronomer 2002 Vol 45, p29 states that Cragg was amazed to see Plato's floor with absolutely nothing on it! He was able to draw details elsewhere in other features. NASA catalog weight=5. NASA TLP ID No. #551. ALPO/BAA weight=2.
In 1962 Sep 09 at UT 01:42-02:00 Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=5-4, T=3) observed in Agrippa the shadow of the central peak to be grayish, not much darker than the floor, estimated at 3deg bright, whereas on 1962 Jul 12, at col 28deg, in the 5" telescope the dhadow was anormal black and sharply defined against the floor which was 3 deg bright. The Cameron 1978 catalog ID=768 and the weight=4. The ALPO/BAA weight=2.
Agrippa 1966 Aug 26 UTC 01:52-02:24 Observer: Bartlett (Baltimore, MD, USA, 5" reflector x437) "Shadow of C.p. was grayish, wall shad. was normal black, C.p.itself barely disting. from floor" S=5, T=3. NASA catalog weight=4 (high). NASA catalog ID #966. ALPO/BAA weight=1.
Shadow of central peak barely distinguishable. Residual wall shadow normal black. Landslip very conspicuous, 10 deg bright. Cameron 1978 catalog TLP ID=1040 and weight=4. Cameron 2006 Catalog Extension ID=12 and weight=4. ALPO/BAA weight=2.
On 1988 Jul 24 D. Darling (Sun Praire, WI, USA, 12" reflector, x150, S=7/10, T=3) observed the following in Proclus: "At 0213 the previously observed gray area was 1/3 of July 22 and V shaped and fanned out across the floor. Could see hint of knot seen before. Craters named in 7/23/88 (#319) were all normal this time too". Is it possible that this report refers to the crater "Gray" rather than "Proclus" as the column field suggests in the Cameron catalog? The Cameron 1978 catalog ID=333 and weight=5. The ALPO/BAA catalog weight=2.
On 1986 May 18 at UT 20:45-22:25 M. Mobberley (Suffolk, UK, seeing II- IV) found that the central craterlet of Plato was an ëasily seen "white splodge" although it was quite difficult to see when imaged with video. Foley and Cameron comment on IR sensitivity of the CCD camera used. The Cameron 2006 catalog ID=285 and the weight=1. The ALPO/BAA weight=1.
On 1974 Mar 3 at UT 19:06-20:20 J-H Robinson (Teighmouth, Devon, UK, 10" refractor, x200, seeing=poor) got a Moon Blink reaction on the South east wall of Plato, adjacent to the rim shadow and alerted the BAA TLP network. Ford reported a negtive result at 19:35UT, although Robinson was still getting a blink reaction at 19:40UT, albeit fainter, red at times. Findlay at 19:43-19:52 and 20:00-20:05 saw nothing unusual. Robinson at 19:56UT no longer saw a blink, but it returned at 20:05UT. Light in bothred and blue filters. Not steady, but coming and going and gone at 20:09UT. Moore at 19:59-21:00, kennedy at 20:12-20:30, Taylor at 20:48-21:03 and Fitton at 20:05UT all got negative results. The latter time coincides with Robinson's second blink reaction. Cameron 1978 catalog ID=1390 and weight=1. ALPO/BAA weight=1.
On 1981 Sep 08 at UT 21:28-21:34 P. Madej (Huddersfield, UK, seeing III-IV and trasnaparency good) observed a light orange transparent cloud extending from the north east inner corner across over the floor of Plato. Camero comments that this report was confirmed by 3 othr observers. The shape of this clud varied. The Cameron 2006 catalog ID= 153 and weight=4. The ALPO/BAA weight=3.
Dawes 1973 Feb 12-23 UT 22:30-01:20 Observed by Porter (Narragansett?, RI, USA, 6" reflector x96, S=9, T=0-4, alt=55-75deg?) "Brightening of some of permanent pts. monitored while others stayed steady & normal brightness. (Other nites' obs. suggest that he saw end of dimming event & return to normal). Distinct fluctuations." NASA catalog weight=4 (good). NASA catalog ID #1361.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17" reflector) and Fisher (Colfax, CA, 8" reflector, x300) observed a red glow in Anaximander in the dark part of the Moon. The Cameron 1978 catalog ID= 784 and weight=5. The ALPO/BAA weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17" reflector) observed a red glow in Aristarchus in the dark part of the Moon. The Cameron 1978 catalog ID= 784 and weight=5. The ALPO/BAA weight=3.
On 1979 Dec 29 at UT 17:45-18:20 Crick (Merchtem, Belgium, 6" reflector, x140, seeing=III) found a violet spot in the NW inner wall. The floor was obscured of detail on the northern half. All other regions studied appeared normal. Observer unsure if this was a TLP or spurious colour. Cameron 2006 catalog ID=80 and weight=3. ALPO/BAA weight=3.
On 1991 Feb 25 at UT 01:26-01:49 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x248, seeing=10/1, transparency=good) found Gassendi's western rim to be bright in red and diffuse in blue light. A sketch was provided. The Cameron 2006 catalog ID=420 and the weight=4. The ALPO/BAA weight=2.
Gassendi 1979 Dec 29 UTC 20:09-22:04 - Observer: Cook (Frimley, Surrey, UK) "Colour seen - almost certainly spurious colour and not a TLP". ALPO/BAA weight=1.
On 1988 Jul 25 at UT03:15 H. Davis (Madison, WI, USA) stated that Proclus was normal apart from a "slightly darker area in SW (Ast) SE (IUE) corner." The Cameron 2006 catalog ID=334 and the weight=0. The ALPO/BAA weight=1.
On 1991 May 24 at UT 20:00? Romualdo Lourencon (Sao Paulo, Brazil, 60mm refractor, seeing=III) detected a circular cloud in Jansen B and H? (Gazateer report says F and K). "The crater of the event 100km diam. compared to Copernicus, dark with crescent obscured region below it. Was S of Jansen. A circular depression there was before LTP in darkness. Wonders if circ. depr. was shadow of cloud? The Cameron 2006 catalog ID=428a and the weight=3. The ALPO/BAA weight=1.
Alphonsus - 1966 Aug 27 UTC 06:05-06:25 observed by Haris, Eastman, Bornhusrt, Cameron, astronet observers (Tucson, AZ, USA - 21" reflector x200) and by Corralitos observatory (Organ Pass, NM, USA, 24" reflector) "W. dark-haloed area varying & the small dark-haloed (40%) area also varying. Seen by others present incl. the author (WBC) who attributes the variations to "seeing". Not confirmed by Corralitos MB." NASA catalog weight=1 (low). NASA catalog ID=968.
Ross D area - 1966 Aug 27 UT 06:06-06:25 observed by Harris, Eastman, Bornhusrt, Cameron, astronet observers (Tucson, AZ, USA - 21" reflector x200) and by Corralitos observatory (Organ Pass, NM, USA, 24" reflector) "Obscuration on E. wall, bright area E. of crater at its brightest. (I (WSC) was present at obs. but did not note anything not attributable to bad seeing, but am not familiar with the area in normal aspect. Others present did not see anything unusual, but Bornhurst & Eastman confirmed). Corralitos Obs. found due to changing light conditions. NASA catalog weight=1. NASA catalog ID=967. ALPO/BAA weight=1.
Callipus and vicinity 1973 Feb 13 UT 23:16-23:50 Observed by Frank (E.Pepperell, Massachusetts, USA, 6" reflector x100, Seeing=good, altitude=45 deg). "Large dark patch, albedo=3 present E. of Calippus. Drawing. (Shows it into Callippus also). Never seen before or since. Albedo normal (4.5) at 2350h. (obs. monitors Callippus in ALPO-LTP program)." NASA catalog weight=3 (average). NASA catalog ID #1362.
On 1975 Mar 23 at UT 20:40 P.W. Foley (Kent, UK) found a brownish colour on the north west wall. This is a BAA Lunar Section report. The ALPO/BAA weight=2.
Gassendi - 1966 Sep 25 UT 20:20-20:50 observed by Moore and Moseley(Armagh, N.Ireland, 10" refracfor x140) "Reddish patches, regarded dubious, owing to low altitude of the Moon". NASA catalog weight=1. NASA catalog ID #981. ALPO/BAA weight=1.
Bullialdus 1979 Oct 31 UT 20:20-20:30 G.W. Amery (Reading, UK) observed a plateau area to be dark and distinct in blue light (Wratten 44a), but only just visibly in red (Wratten 25) and yellow light. Observer wonders if this is natural surface colour? ALPO/BAA weight=1.
SE limb of Moon 2003 Aug 08 UTC 20:50 Observer Brook (Plymouth, UK) x70 60mm OG on a very hot evening, when I saw a fountain-like appearance suddenly "squirt" from the SE limb. Seeing not particularly good, but not so poor as to account for what was seen. Duration of phenomenom perhaps a fraction of a second, hight of pehaps a few miles. Thought I saw another one a few minutes later. - observer suspected hot weather and Moon's low altitude" The ALPO/BAA weight=1.
On 1991 May 24 at UT 23:10 M.C. Cook (Frimley, UK) found the apron region of Censorinus had a very dull white apron, but was not diffuse. A sketch was supplied by this experienced observer. The Cameron 2006 catalog ID=428b and the weight=3. The ALPO/BAA weight=2.
On 1891 Oct 14 at UT 18:00 Pickering, based at Arequipa, Peru, and using a 12" reflector, saw is Schroter's Valley and the vicinity "Varitions in vapor column and visibility of craterlets A, C and F (Plate B) in early period at Peru. Directional vaporjet towards F varied but was always continuous. Later, in Musa. There was a break in it. D was quiescent in early period. (due to change in telescope & atmosphere ? Time estimated from given colongitude)." Cameron 1978 catalog ID=273 and weight=3. ALPO/BAA weight=2.
Herodotus 1950 Jun 27 UTC 02:30 Bartlett (Baltimore, MD, USA) reported a bright point in crater. This is mentioned in the Middlehurst TLP catalog but not in the Cameron catalog. The source comes from a Strolling Astronomer article. ALPO/BAA weight=3.
Herodotus 1966 Jun 30 UTC 03:10-03:35 Observed by Bartlett (Baltimore, MD, USA) described in the NASA catalog as: "Bright pseudo-peak again vis. within floor shadow. Peak est. 5 bright. Had seen it at successive lunations in '66" 4" x280 refractor used. NASA catalog weight=4 (high). NASA catalog TLP ID No. #950. ALPO/BAA weight=3.
Aristarchus 1973 Feb 14 UTC 18:31-18:34 observed by Fuger (49N, 8.42E, 75mm refractor, T=1, S=2) "Violet colours on S. of the crater" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
On 1992 Mar 16 at UT 00:39-01:14 D. Weier (Sun Praire, WI, USA, 11" reflector) at 00:39UT noted some soft, diffused, faint ïllumination within the shadow projected over the Cobra Head area, though it had a sharp appearance to the edge of the shadow. D. Darling (Sun Praire, WI, USA, 11" reflector) was taking photographs from UT 00:51 and making drawings and visual descriptions. The first 3 photographs in the sequence have the crater as normal. Four other photographs reveal an abnormality. Seeing conditions were excellent and a great deal of surface detail was seen inside Aristarchus crater - however the apeparance of the Cobra's Head was "washed out" and again shadows near to this were illuminated. The NASA catalog ID=442 and the weight=5. The ALPO/BAA weight=3.
On 2001 Aug 30 at UT20:35-21:15 C. Brook (Plymouth, UK) found a dimming in the central peak of Alphonsus, however it had returned to normal by Aug 31 UT 00:29-00:50UT when A.C. Cook (Alexandria, VA, USA, 8" reflector) examined the area, though there were some slight brightness variations that were attributed to seeing conditions. The ALPO/BAA weight=2.
Aristarchus 1982 Nov 27 UT 20:13-01:00 J-H Robinson (Teighmouth, Devon, UK) found that the bands of Aristarchus were clearer in red than in blue light. North found that the sunlit part of the crater was very bright. M. Cook described the crater as a "kaleidoscope of colour. Foley observed UT 23:05-01:00 (Kent, UK, Antionadi III, Transparency Moderate) - Colouration Seen - Ref: BAA Lunar Section Circular. The Cameron 2006 catalog ID=190 and weight=5. The ALPO/BAA weight=3.
On 1993 Apr 03 at 23:39UT C. Adams (FL, USA, 24" reflector, x168) noticed a "translucent orange" colour in Gassendi crater within a 35deg sector (apex at the centre) - row of 3 central peaks extending west - the western central peak appeared as a dome with a summit craterlet. The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=3.
On 1993 Apr 03 at 23:39UT D. Weier (Sun Praire, WI, USA, 7x50 binoculars) observed 2 flashes within the Proclus crater. The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=2.
Herodotus 1971 Jul 05 UT 03:48 Observed by Bartlett (Baltimore, MD, USA) described in the NASA catalog as: Pseudo-c.p. I= 4(albdeo) appeared to cast a distinct shadow. 1st time seen. (Apollo 15 photo shows an apparent slight elev. nr. center -- very very low hills? 5" refelctor x79,283x, NASA catalog weight=1 (low). ALPO/BAA weight=2.
Cavendish 1956 Jan 24 UTC 20:34-20:45 Observed by Houghton and Warner (England) "Variable flashes seen from W. inner(?) wall of crater, then a little inside the terminator. Flashes began with a bright glare at 20:34, were very bright for ~3 min, then faded. Flash rate approximately every 1.5 sec. Other point like peaks did not flash. Also indications were seen of reflections of flashes from E. (inner?) wall and the crater's floor was faintly lit by a glare. Ref: Strolling Astronomer p27, Vol 45, 2003. 17cm reflector x230. Seeing good- excellent. NASA catalog assigns this observation a weight of 4 (good). NASA TLP ID No. #631.
Hislop of England? saw Aristarchus as nebulous at the centre, despite the fact that elsewhere features were well defined. The Cameron 1978 catalog ID=246 and the weight=3. The ALPO/BAA weight=2.
On 1985 Jun 29 at UT 22:56 M.C. Cook (Frimley, UK, seeing poor) observed that Torricelli B looked as bright as a mountain to its south west - no colour was seen. Cameron comments that this was similar to Marshall's 1985 Jul 1 observation. The cameron 2006 catalog ID=278 and the weight=3.
On 1963 Nov 28 at UT 05:00-06:00 Greenacre, Barr, Hall and Dungan (Flagstaff, AZ, USA, 24" refractor) observed a deep violet area form on the western exterior of Aristarchus, and a less deep violet area form to the eastern edge of Aristarchus. As these were becoming stronger, a blue-like haze formed on the sunlit floor of Aristarchus, that obscured underlying detail. The ALPO/BAA weight=2.
On 1997 Oct 13 at UT11:09-11:21 D. Rodway (Oamaru, South Island, New Zealand, 8.5" reflector, x270) saw a deep salmon-pink colouration in the south east corner interior of the crater Aristarchus. This colour was confirmed by the observers wife. By 11:21 UT the colour had faded completely. Rodway had been a lunar observer since 1958, using a wide range of instruments from 3 inch refractors to 12 inch reflectors and had observed a TLP in Gassendi back in 1966 (from L'ondon, UK), and so was an experienced observer. The ALPO/BAA weight=4.
Promontory LaPlace 1977 Jan 31 UT 20:49-23:00 Observed by Foley (England, 11.75" reflector, x360), Prout (England, 4" refractor or reflector?), Findlay (Dundee, Scotland, 10" reflector, x180, S=VG), Ford (Dundee, Scotland), Mooney (Dundee, Scotland) "With filters in eyepiece, tho't he saw a possible darkening in the blue but no variation in red. Altho. a deep shadow is normal to the W. of the cape at this period, (then cape must have a slope > 30deg!). he wondered if shad. was more extensive than usual? Prout noted a dark inky coma- shaped spot. Dundee obs. concluded it was a shadow. Took photos. Analysis of them was underway at time of rep't." NASA catalog weight=5 (very high). NASA catalog ID #1462.
E. of Picard 1948 Aug 16/17 UTC 22:30-02:26 Observed by Moore & Baum (Chester, UK) described in NASA catalog as: "2 areas E. of Picard appeared featureless. Cloud-like patches, 12(?)inch reflector. NASA catalog weight=4 (high). NASA catalog ID No. #509.
Alphonsus 1966 Aug 28 UTC 06:00-08:00 Observers from Astronet (Tucson, AZ, USA). NASA catalog states: "Brightenings in 2 dark patches & near fainter (40%) dark patch (40% of way from the c.p. to W. wall). 21" x200 reflector used. NASA catalog weight=2 (poor). NASA catalog TLP ID No. 969.
On 1975 Mar 24 at UT19:08-19:45 P.W. Foley (Kent, UK) observed blueness in the North East (Classical?) corner of Aristarchus. Moon blink seen - pale in red. Most other observers clouded out. The ALPO/BAA weight=3.
On 1982 Aug 01 at UT20:50 M. Mobberley (Suffolk, UK, 14" reflector, seeing III-IV) found that LaPlace A was significantly more prominent than usual - comparisons were made with photographs in books. The Cameron 2006 catalog ID=178 and weight=3. The ALPO/BAA weight=1.
Herodotus 2002 Sep 18 UT 22:00 Observed by Raffaello Lena (GLR, Italy). Event described was of two pseudo-peak/hill-like features, one on the southern floor of the crater, and another just slightly to the NW of the centre. on the southern floor of the crater. Lena suspects a combination of seeing effects and albedo markings on the floor. However this effect of two spots on the floor has not been repeated again.For further information, theory, and a sketch please see Fig 5 in this web link: http://utenti.lycos.it/gibbidomine/analisi123.htm ALPO/BAA weight=2.
Aristarchus 2014 Dec 04 UT 03:14-03:15 M.P. Homan (Grand Rapids, MI, USA, Nikon P520 x48) 11 digital images taken. These show possible blue colour in the Aristarchus area e.g. on the ray between Herodotus an Aristarchus. ALPO/BAA weight=1.
Proclus 1990 Mar 09 UT 00:12-00:13 Observed by Marie Cook (Frimley, UK, 3.5" Questar telescope) observed a "long plume of light" the brightness was the same as the wall region. It went from the southern rim about half of the way across to the centre in the "northerly". The plume feature was not seen at higher magnifications. Change in brightness also noted. The Cameron 2006 catalog ID=394 and the weight=1. The ALPO/BAA weight=1.
Proclus 1975 May 24 UTC 22:00 Observed by P.W. Foley (Kent, UK) "Brightenings(?). Seen by more than one obs. ? Foley recorded a ray projection on photos, but not seen vis. by others." NASA catalog weight=3? (average?). NASA catalog ID #1405.
On 1994 Apr 23 at UT02:41 D. Fryback (Madison, WI, USA) observed a starlike flash in Alphonsus crater. The ALPO/BAA weight=2.
Aristarchus 1972 Apr 25 UTC 19:15-19:20 Observer Ventzke (located at 48.67N, 12.00E) - diffuse brightening on inner N. wall, reddish. 60mm refractor used. Ref. p53-61 of Hilrecht & Kuveler Moon & Planets vol 30, 1984.
On 1975 Mar 24 at UT22:28-22:19 P.W. Foley (Kent, UK) observed vivid blue/green in Aristarchus. The ALPO/BAA weight=3.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm reflector, thin streamers of cloud across sky, but no wind) Aristarchus had a faint pale yellow tint along the rim and the crater was very bright. No detail seen in in Vallis Schroteri. Yellow spot also seen on the northern limb (Carpenter and Pythagoras?). Both effects had been seen the previous night and were confirmed by friends. Colour still present when observing stopped at 03:00 UT. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm reflector, thin streamers of cloud across sky, but no wind.) Carpenter had a yellow tint along the W rim. Ywllow tint seen on Pythagoras and also Aristarchus. Effect had been seen the previous night and were confirmed by friends. Colour still present when observing stopped at 03L00 UT. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm reflector, thin streamers of cloud across sky, but no wind.) Pythagoras had a yellow tint along the W rim. Ywllow tint seen on Carpenter and also Aristarchus. Effect had been seen the previous night and were confirmed by friends. Colour still present when observing stopped at 03L00 UT. The ALPO/BAA weight=1.
Alphonsus (black spot, upland #1) 1965 Oct 08 UT 05:48-08:23 Observed by McCord (Mt Wilson, CA, USA, 60" reflector + spectrograph) "Line depth ratios a/b(H?), c/d (K?) were significantly low for upland #1 & abnormally high for Alphonsus black spot, but not as pronounced as the other area was high compared with 23 other areas" NASA catalog weight=5 (very good). NASA catalog ID #899.
Aristarchus, Herodotus - 1967 Sep 16 UTC 23:50-23:55 observed by Seeliger (Dresden, Germany, 30" reflector, 90, 140x) "Dark streaks on E.(ast. ?) outside walls of both craters. No shadow from Herod. wall. Drawings (wall < 18 deg slope if no shadow normally)." NASA catalog weight=3 (average). NASA catalog ID=#1044.
Manillius 1969 Jul 27 UT 05:45-05:46 Observed by Wairy Cardoso (Rio de Janeiro, Brazil, 13" refractor, x360) "Bright spot in Manillius (Apollo 11 watch, J. M. L. da Silva says obs. no good because of inexper. of obs)" NASA catalog weight=0. NASA catalog ID #1189. ALPO/BAA weight=1.
Menelaus 1969 Jul 27 UT 1969 Jul 27 UT 06:27-07:30 Observed by Wairy Cardoso (Rio de Janeiro, Brazil, 13" refractor, x360) "Brightening in Menelaus (Apollo 11 watch, J. M. L. da Silva says obs. no good because of inexper. of obs)" NASA catalog weight=0. NASA catalog ID #1189. ALPO/BAA weight=1.
Pythagoras-Cleostratus 1974 Feb 05 UT 01:45,02:45 observed by Lord (St Anne's-on-Sea, Eng., 3" refractor, x135) "Event normal in integrated light. Light, full surface detail in red filter, dark, with full surface detail in blue filter. Other term. features did not show it. Only E.floor of Pythag., Babbage northern crater chain & NW floor of Cleostr. (According to Fitton's criteria this was a tenuous gas above the surface. Date given as 5th, but term. was at least 3deg E. Therefore these features were in the dark then. Ancill. data given for 6th)." NASA catalog weight=3. NASA catalog ID=#1387. ALPO/BAA weight=3.
Pythagoras-Cleostratus 1974 Feb 05? UTC 01:45,02:45 observed by Lord (St Anne's-on-Sea, Eng., 3" refractor, x135) "Event normal in integrated light. Light, full surface detail in red filter, dark, with full surface detail in blue filter. Other term. features did not show it. Only E.floor of Pythag., Babbage northern crater chain & NW floor of Cleostr. (According to Fitton's criteria this was a tenuous gas above the surface. Date given as 5th, but term. was at least 3deg E. Therefore these features were in the dark then. Ancill. data given for 6th)." NASA catalog weight=3 (average). NASA catalog ID=#1387.
Near Furnerius 1920 Nov 23 UTC 20:00? Observed by an unknown observer (England?) "Shaft of light projecting from Moon, or spot so bright it appeared to (strong ray?)" NASA catalog weight=1 (very low). NASA catalog ID #378
Aristarchus 1976 Jan 14 UT 20:00-23:00 Observed by P.W. Foley (Wilmington, Kent, UK) - Deep Violet/Blue spot interior N/WW corner. No colour seen elsewhere. It was only a blue spot on the Jan 13. ALPO/BAA weight=1.
Plato 1976 Jan 14 UT 20:50 Observed by J.H-Robinson (Teignmouth, UK, 26cm Newtonian, Wratten 25 and 44a filters, x200, seeing fair to poor). The Plato floor patches were clearer in red than in blue light. ALPO/BAA weight=1.
Schickard 1944 Aug 31 UTC 21:00? Observed by Wilkins (Kent, England) described in the NASA catalog as: "Saw a mist in it which was gone next nite. interor was dotted with white spots, contrasting sharply with dark areas. All very clear on Aug 15 at sunset". 8.5" reflector. NASA catalog weight=4 {high). NASA catalog TLP ID No. #492. ALPO/BAA weight=3.
Aristarchus 1967 Sep 17 UTC 02:05-02:21 Observers: Delano (Fall River, MA, USA) and Corralitos Observatory (Organ Pass, NM, USA). The former used a 12.5" reflector at 400x and the latter a 24" reflector. The NASA catalog states the following: "A rimtop cratelet on SW rim appeared almost as bright as c.p. thru a Wratten 25 filter (red) but no brighter than a lower central wall & rim thru a Wratten 48 (blue) filter. Inner W. slope of craterlet displayed a bright red color which became less & less noticeable until 0212h It was no longer brighter than other parts. At 0217 it flared again brighter red for 1m. (indep. confirm. of Seeliger for activity in Aris. ?) Corralitos MB did not confirm. NASA catalog weight=4. NASA catalog TLP ID No. #1045. ALPO/BAA weight=2.
On 2010 Apr 27 at UT 00:10-00:30 and 01:45-02:00 P. Grego (St Dennis, UK, 20 and 30cm reflectors) noticed a craterlet just to the east of Briggs and an E-W trending lineament or wrinkle ridge that did not show on NASA LAC charts. Further checks did not reveal it on Lunar Orbiter mosaics, but the craterlets (and not the E-W trending ridge) were visible in LROC topography data. The ridge is possibly a very low relief feature that shows only under very shallow illumination conditions. The ALPO/BAA weight=1 until we get confirmation at repeat illumination.
Aristarchus 1982 Nov 28 UTC 23:35-23:55 Observed by Foley (Kent, UK, Antionadi III, Transparency Moderate) - Colouration Seen - Ref: BAA Lunar Section Circular. ALPO/BAA weight=2.
On 1975 Mar 25 at UT18:50-20:50 P.W. Foley (Kent, UK) observed blue/grey in Aristarchus. The ALPO/BAA weight=1.
On 1983 Sep 20 at UT 05:08-06:13 Louderback (South Bend, WA, USA, 3" refractor, x150, seeing poor and chromatic aberation on the limb) detected "purple"in the vicinity of Aristarchus crater and this was stongest on the north and north west external rims, however there was no "violet glare"from inside the crater. However the region of the central peak was very bright - though he could not detect the central peak. The brightness of the TLP was 4.5 and it should normally be 3 (nimbus area). Near the "big plain"it was 7. The chromatic aberation seen on the crater. There was also violet on the northen wall of Herodotus crater and the Cobra Head. Ït appeared dark blue in the blue filter", the surrounds remained gray". Apparently on the 26th the"ring was still dark with faint violet - nearly normal". Cameron comments that the TLP was due to spurious colour. The Cameron 2006 catalog ID= 229 and the weight=3. The ALPO/BAA weight=2.
On 1975 Mar 25 at UT19:59-20:02 P.W. Foley (Wilmington, Dartford, Kent, UK, 30cm Newtownian) observed blueness along the inner southern wall of Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1985 Jul 01 at 02:00-03:00 UT K. Marshall (Medellin, Columbia) observed thatTorricelli B was very bright - verified using a C.E.D. No colour was seen though. the Cameron 2006 catalog ID=279 and the weight= 4. The ALPO/BAA weight=3.
On 1980 Jan 01 at UT 00:10-00:21 A.C.Cook (Frimley, UK, 12" reflector, Wratten 29 and 44A filters, Seeing II-III and transparency poor- moderate) suspected that the floor was slightly brighter in blue light than in red. No such effect was seen earlier at 23:54-23:57. Cameron 2006 catalog ID=81 and weight=3. ALPO/BAA weight=1.
Aristarchus 2015 Mar 03 UT 23:58 Brendan Shaw (UK) saw a flash on the NW rim of Aristarchus on his computer screen - the camera was working in the near IR. Seeing was not very good at the time. Unfortunately this flash occurred in between imaging sessions. No other flashes seen, despite looking. The observer considerd the possibility that it might have been a cosmic ray detection, but cannot say for sure. The ALPO/BAA TLP weight=1.
Grimaldi 1839 Jun 24 UT 22:00? Observed by Gruithuisen (Munich, Germany) "Smokey, grey mist". NASA catalog weight=4 (high). NASA catalog ID #117. ALPO/BAA weight=3.
On 1983 Oct 19 at UT 21:09-23:40 G. North (Bexhill on Sea, UK, seeing III) found Aristarchus crater to be slightly blue in colour, and very bright, despite the fact that no colour was seen elsewhere on the Moon. At 22:08UT Foley (Kent, UK, 12"reflector, seeing II) obtained an extremely high CED brightness measurement and also picked up a "blue- violet" cast, especially inside the west rim, furthermore he saw noe detail in it. The Cameron 2006 catalog ID=230 and the weight=5. The ALPO/BAA weight=3.
In 1959 Nov (Day unknown) at UT 21:15-22:15 Bradford (South Shields, UK, 15" reflector, x480) observed in Plato: "Cocealed by a dusky cloud. Appeared to be stream or smoke. No change in 1h. Following week no trace. (SR Nov 5, SS Nov 18. Says he obs. at time of unmanned landing, but there were none in Nov.) Similar to #722". The Cameron 1978 catalog ID=726 and weight=2. The ALPOS/BAA weight=2.
On 1994 Apr 24 at UT 03:50 R. Manske (Waunakee, WI, USA) found that the Cobra Head appeared to have an obscuration on the top eastern half. The ALPO/BAA weight=2.
Aristarchus 1976 Jan 15 UT 19:30-20:50 Observed by P.W. Foley (Kent, UK, 12" reflector) - Aristarchus was abnormally bright (Cameron suspects that this is a confirmation an explosion effect seen earlier by Greenland: "On 1976 Jan 15 at 19:45Ut Greenland (Crawley, UK, 7x50 binooculars) thought that they saw an "explosion" on the Moon (in the general region of Aristarchus) for a fraction of a second, followed by a bright spot in the same position (not an astronomer). After discussions with others, decided it was a moment of transition to greater intensity (better seeing?). Moore thinks it was atmospheric but says it should be on record. Cmeron's 1978 catalog ID=1425 and weight=5". For the Foley report: Cameron 1978 catalog TLP ID=1427 and weight=5. ALPO/BAA weight=1.
Aristarchus 1982 Nov 29 UT 21:47 Observed by P. Madej (Huddersfield, UK) flashes seen to NW. ALPO/BAA weight=1.
Aristarchus 1950 Jun 29 UT 05:20-05:41 Observed by Bartlett (Baltimore, MD, USA, 3.5" reflector x100, S=6, T=5) "Strong bluish glare on E..SE wall." NASA catalog weight=4. NASA catalog ID #529.
(65E, 56N) near Endymion & Mare Humboldt 1968 Jun 10 UT 02:35 Observed by Provenmire, Robinson et al. (Hamburg, PA, USA, 6" reflector x105, Seeing=good, alt=20deg) "While waiting for reappearance of Antares from a grazing occultation at 13+/-4deg P.A. saw a prolonged blue flash lasting from minimum of 1/2 to a max. of 2.0 s. Several others along obs. path of several miles also saw it so not a local phenom. (located 38 deg from cusp, azimuth=157 deg?)" NASA catalog weight=5 (very good). NASA catalog ID #1078.
1982 Mar 08 Daniell UT 22:49-22:57 P.Madej (Hudersfield, UK) - A colour and brightness anomaly was seen a TLP alert was put out. Cameron 2006 catalog extension weight=165 and weight=3. ALPO/BAA weight=2.
On 1971 Apr 09 at UT 22:30-23:05 N. Brown (Huntington, York, UK, 37cm reflector, x252) noted that the bands in Aristarchus were noticeably more prominent in blue light than in red. This has no entry in the 1978 Cameron catalog. It has an ALPO/BAA weight of 2.
On 1977 Dec 24 at UT 19:30-23:20 P.Foley (Kent, UK, 12" reflector). CED Brightness changes were noted in the central peak and the west wall. The following features remained relatively steady in comparison: Proclus, Mon Pico north peak, Mons Piton and Censorinus. Cameron 2006 catalog ID=19 and weight=4. ALPO/BAA weight=3.
Helicon A 1977 Feb 03 UT 2009-23:52 Foley and Moore observed the crater to be changing in brightness. Jewitt and Elms failed to detect this. ALPO/BAA weight=1.
Aristarchus 1976 Jan 16 UT 22:00-23:15 Observed by P.W. Foley (Wilmington, Kent, UK, seeing II) - Aristarchus was tremendously bright. No colour seen. ALPO/BAA weight=1.
Gauss 1967 Sep 19 UT 02:33 Observer: Chilton (Hamilton, ON, Canada, 12.5" Gregorian, 200x and a 4" refractor). In a polaroid filter the west wall was missing. Effect seen in large scope and also in 4-in finder. His conclusion was that W. wall reflected polarized light. Cameron 1978 catalog weight=3 (good) and TLP ID #1047. ALPO/BAA weight=4.
Aristarchus 1973 Feb 17 UTC 22:15-22:45 Observed by Rose, Hunt, Robinson, Coleman (UK) described in the NASA catalog as: "Rose tho't W.rampart was diffuse over 1/3 its length. Alerted Hunt who tho't there was a dark patch (in poor seeing) but the diffuse effect was neg. Robinson tho't things norm. also Coleman(Seeing=poor). Moore thinks not real phenom. Rose used a 14", hunt a 6" and Robinson (and? Coleman) a 10" reflector. NASA catalog weight=1 (low). NASA catalog TLP ID No. 1363
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 3 minutes Aristarchus brightened. Cameron 2006 catalog ID=180 and weight=0. ALPO/BAA weight=1.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 5 minutes Copernicus flashes. Cameron 2006 catalog ID=180 and weight=0. ALPO/BAA weight=1.
Herodotus 1968 Aug 09 UTC 02:05-03:45 Observed by Lowe (Springfield, VA, USA) described in the NASA catalog as: "With naked eye saw a bright spot in NW part of Moon; tho't it was Aristarchus, but 7x binoculars showed it to be Herod. which was brighter than Aris! still apparent at 0245h, but was normal at 0345h. (at FM, must have been an extraordinary event)". Naked eye and 7x binoculars used. The NASA catalog assigns this a high weight of 4. The NASA catalog TLP ID No. is #1087. Reference for observation is personal communication from the observer to Winified Sawtell Cameron. ALPO/BAA weight=3.
Aristarchus 1974 Jan 08/09 UT i18:15-00:00 Observed by Billington (England), Robinson (Devon, England), Amery (REading, England), Moore (Selsey, England) "Orange & viol. hue in crater seen by Billington. Robinson, Amery & Moore reported neg. blink results at this time. (Prob. chrom. aberr., Moore concurs)." NASA catalog weight=0. NASA catalog ID #1386. ALPO/BAA weight=1.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent, UK, 30cm Newtownian) observed blueness along the inner southern wall of Plato, though the centre of the activity was offset on one side. This is a BAA report. The ALPO/BAA weight=1.
Plato 1944 Sep 03 UTC 03:40 - A.W. Mount (Fort Worth, TX, USA, Conditions good, seeing 6/10) saw a small white bright point of light appear suddenly close to the W. wall of Plato glowed briefly as by far the most conspicuous object in the lunar field of view and vanished quickly after approximately 2 sec. It was star-like in appearance and was stationary on the Moon's surface - about magnitude 6? Angular diameter of the flash was <= 1". Observing conditions good enough to see the central craterlet in Plato. 20cm reflector used. Ref. DJALPO Vol 45, p28 Spring 2003.
On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector) observed something unusual in Aristarchus/Copernicus/Kepler - the Cameron catalog is not very clear which. The Cameron 1978 catalog ID=779 and weight=5. ALPO/BAA weight=1.
On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du Midi, France, 24" reflector) observed in Kepler an enhancement in red light at 672.5nm and 545.0nm. Luminescence ~86% +/-3% of background. According to the Cameron catalog, Moore(12" reflector, UK) noted something unsual between 22:30 and 03:00 but this might apply to Kepler, Coperncius, and/or Aristarchus and that was seen 23:30-03:00? - the catalog is not very clear. The Cameron 1978 catalog ID=779 and weight=5. The ALPO/BAA weight=4.
Plato 1869 Sep 21-22? UTC 00:00? Observed by Gledhill (Halifax, UK, 9" refractor) "Group I craters-notable illum. accomp. by a single light on a distinct spot. (similar to Aug. obs. & if same phase as Ap 1870, date =22nd.). NASA catalog weight=2 (poor). NASA catalog ID #164.
On 1970 Aug 12 at UT21:00? an unknown observer commented about Plato: "Light #22, remarkable increase in brightness. #32 subsided & #14 shone out then faded & #16 brightened. (Fort says that till Apr. 1871 selenog recorded 1600 obs. of fluctuations of lights in Plato & had drawn 37 graphs of indiv. lights. These were deposited in the library of the Royal Astronomical Society by Birt)." The Cameron 1978 catalog ID=169 and the weight=3. The ALPO/BAA weight=2.
Mare Crisium 1965 Oct 11 UTC 07:32 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
Aristarchus 1966 Jul 04 UTC 06:15-06:35 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x142) & by Corralitos Observatory (Organ Pass, NM, USA, 24" reflector). "S.region of floor was granulated & dull est. at 6 & pale yellow-brown tint. Rest of crater est. 8 bright white. Not confirmed by Corralitos MB" S=5, T=4. NASA catalog weight=4 (high). NASA catalog ID #955. ALPO/BAA weight=3.
On 1992 Jan 20/21 at UT 23:49-00:15 M.C. Cook (Frimley, UK, 3" Questar telescope, x130, seeing=III) managed to see the central craterlet in Plato and an unnamed one north west of Mons Pico. Cameron comments - "were this & No. 429 LTP or just good seeing?)." Note it is possible that she mean LTP 439 in which case it would refer to the previous nights TLP. The Cameron 2006 catalog ID=439 and the weight=2. The ALPO/BAA weight=1.
In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60" reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in magnitude in 2.5 hours - a photometric measurement. The average magnitude for this age is 4.03, so therefore the crater had brightened by two times above normal. The Cameron 1978 catalogID=769 and the weight=5. The ALPO/BAA weight=3.
Mare Crisium 1965 Oct 11 UTC 10:10 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
Aristarchus 1939 Dec 27 UT 08:00? Observed by Barcroft (Madera, CA, USA, 6" reflector) "Faint bluish mist on inner W. wall (according to Firsoff it was right after SR, but this can't be as age=16d & SR comes at 11d)" NASA catalog weight=3 (average). NASA catalog ID #464.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent, UK, 30cm Newtownian) observed blueness along the inner southern wall of Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1975 Mar 28 at UT22:30-23:42 P.W. Foley (Kent, UK) observed orange/red in Aristarchus. The ALPO/BAA weight=1.
On 1989 Jun 20 UT 0628-06:58 R. Manske (Sun Praire, WI, USA, 1" refractor) discovered blue on the north west inner wall and red on the south east outer wall. At 05:39 he could see the blue but not the red. No colour was detected on Tycho, but he thought that he could detect a pinkish colouration over the whole Moon. The Cameron 2006 catalog ID= 367 and the weight=1. The ALPO/BAA weight=1.
Aristarchus 1983 Oct 22 UT 22:00 G.W. Amery, (Reading, UK, Seeing III-IV) found Aristrachus so bright that the CED was unable to give a reading. The crater's interior was also diffuse in appearance. The Cameron 2008 catalog ID=232 and weight=4. The ALPO/BAA weight=3.
Aristarchus 1969 May 03 UTC 07:00? Observed by Smith, Gallivan (Corralitos Observatory, Organ Pass, NM, 24" reflector, photos) "Bluing around crater. Visible on monitor, but immeasurable in photos" NASA catalog weight=5. NASA catalog ID #1125
On 1980 Sep 25 atUT 20:20-22:14 P. Moore (Selsey, UK, 15"? reflector, seeing=III) found that Mons Pico was bright and had a reddish glow to its south west. The Cameron 2006 catalog ID=111 and weight=0. The ALPO/BAA weight=1.
On 1980 Sep 25 at UT20:20-22:14 P. Moore (Selsey, UK) noticed that the central craterlet was more visible in red than in blue. There was also a streak on the floor that was "shifted to S & W." The floor was dark and Mons Pico was bright. Peters found Plato's floor (and central craterlet) to be dark, and darker in blue than in red, however he was suffereing from spurious colour at his observing site. Cameron 2006 catalog ID=111 and weight=0. ALPO/BAA weight=1.
On 1980 Sep 25 at UT 20:20-22:14 Peters (Kent,UK, x240 and x120, seeing=III) observed Proclus to have an orange tint, however there was a lot of spurious colour in the area. The Cameron 1978 catalog ID=111 and weight=0. The ALPO/BAA weight=1.
2004 Aug 31 UT 22:30-22:35 C. Brook (Plymouth, UK) looked at Gassendi and noted a slight chestnut brown colouration in the dark area on the crater floor to the north of the central mountain leading to Gassendi A. It lasted for about two minutes during 22-30 hrs UT to about 22-35 hrs UT (observer unable be more precise). Used 60mm OG x120. Seeing quite steady trans good. Checked Gassendi again at 23hrs UT to 23-05. No sign of colour. Also area mentioned earlier seemed lighter now. No colour on Aristarchus. Plato floor dark -no sign of craterlets. Seeing good with just slight tremor. Trans good 60mm OG x120 used. The ALPO/BAA weight=2.
On 1956 Dec 19 at UT 00:00? an unknown observer apparently saw a TLP somewhere on the Moon. Cameron gives the reference for this as an unnamed AGU meeting. The Cameron 1978 catalog ID=659 and weight=0. The ALPO/BAA weight=1.
Plato 1966 Sep 02 UT 0625 Observed by Kelsey (Riverside, California, USA, 8" reflector x300) "Landslip at west would not focus. (Ricker not certain it was a real LTP)." NASA catalog weight=2 (low). NASA catalog ID 973.
Aristarchus 1983 Oct 23 UT 19:00-01:30 Observer: Foley (Kent, UK, 12" reflector, seeing=II) noiced at 19:00UT an extended bright spot on E wall and extending beyond. This was brighter than other areas of the crater. There was also occasional star-like glistening. Foley comments that the inside of Aristarchus was slightly obscured. The TLP started fading from UT20:30 and finished by 01:30UT. six out of nine independent observers confirmed the effects seen. In total 14 observers observed, 9 reported back and 6 found abnormalities in Aristarcus though all encountered variable seeing conditions - some had spurious colour. Cameron comments that this was one of the best recorded/confirmed TLP events. All CED brightness measurements obtained were very high. Moore, Nicolson and Clarke (5" refractor and 15" reflector, 230-350xseeing III) found the crater to be very bright at 19:11UT through a 5" refractor and there was a blob on the east rim (Bartlet's EWBS?) at 19:14UT. Nicolson also saw a very bright star-like area on the eastern wall but this was not defined as it usually is. The crater was also very bright at 22:43UT using the 15" reflector available to these observers. At 01:07UT they used a Moon blink and discovered that the bright region was bright in blue light and less bright in red - although this was not a detactable blink when switching rapidly between filters. They found that the crater had returned to normal by 01:15UT. M.C. Cook (Frimley, UK, seeing III-IV) observed a large diffuse spot on the east of the crater that was brighter in blue than in red light and the CED device gave a high reading. J.D. Cook (Frimley, UK, seeing III-IV) made a skecth that showed the bright spot extended on the east wall - again the CED reading was high and a lot of detail was visible on the floor. A.C. Cook (Frimley, UK, seeing III-IV) also noted remarkable detail and the bright (as confirmed by CED) blob on the eastern rim. G. North (Sussex, UK, seeing III-II) also confirmed the bright blob on the eastern wall. Wooller found the north west wall was a dirty yellow colour - though no colour was seen elsewhere in or outside the crater. Mosely found the crater to be bright and his sketch revealed the extension of the bright blob on the eastern rim and again a great deal of interior detail. Amery (Reading, UK, seeing III) found Aristarchus to be "a brilliant splash against dulled background in violet filter, especially polarizing filter. CED + polarizer readings high, but not as high as previous night". Mobberley (Suffolk, UK, seeing III-IV) remarked that "spurious colour a total mess around Aristarchus & nothing abnormal seen". A photograph was taken at 20:50UT reveals the bright blob and entire detail. Peters (Kent, UK, seeingIII-II) observed Aristarchus with a UV screen from 20:15-21:23UT and comented that althogh being very bright, there was no variation between white and UV. It was checked with a Moon Blink device and the radial bands were clearly seen in white light, < in blue. The Cameron 2008 catalog ID=233 and the weight=5. The ALPO/BAA weight=4.
Aristarchus 1964 Oct 23 UTC 02:35-02:45 Observed by Bartlett (Baltimore, MD, USA, 3" refractor, 133 & 200x, S=3-5, T=4) "South floor region granulated, 6 deg bright with very faint trace of pale yellow color; rest of crater 8 deg bright." NASA catalog weight=4 (good), NASA catalog ID #859.
In 1962 Sep 16 at UT08:05 Spirad (Victoria, B.C., Canada, 48" reflector) obtained a spectrum with a UV emission, in H & K lines compared to Jupiter and Mars. II-AO plates, 6A/mm dispersion. Fraunhofer lines much shallower than planetary ones. (whole Moon). The Cameron 1978 catalog ID=770 and weight=5. The ALPO/BAA weight=4.
On 2002 Sep 23 at UT22:45-23:56 C. Brook (Plymouth, UK) noticed that the bands inside Aristarchus varied (UT22:45-22:56) in definition whilst the rim of Herodotus and the rays of Kepler and Copernicus remained sharp. These bouts of variation were 1-2min in duration. At 23:56UT when he checked again the periodic blurrings of the bands were still present. The observer suspected atmospheric effects. M.Cook (Frimley, UK) observed 22:00-22:30 and could see only 2 bands on the west wall - but this may have been because of poor transparancy. The ALPO/BAA weight=1.
On 1988 Jul 31 at UT 07:09-08:10 D. Darling (Sun Prairie, WI, USA, 12.5"reflector, seeing=7/10 and T=3) did not detect the dark region on the south east floor of Proclus (the TLP from a few days earlier), but did see 2 "linear mounds". The Cameron 2006 catalog ID=335 and the weight=0. The ALPO/BAA weight=1.
On 2013 Dec 19 N. Longshaw (Oldham, UK, Seeing III, TAK FS 78 APO Refracror) observed a diffuse area east of the central peak of Geminus, to be sepia/brownish tint. The ALPO/BAA weight=3.
On 2011 Jan 21 at 22:30UT N.Longshaw (UK, 4" Achromatic refractor, x128 & x160, Seeing III, transparancy average) suspected on the eastern edge of Geminus, on the border of the crater filled shadow and the eastern illuminated rim, a brownish, almost speia hue. This extended for a short distance from the floor shadow into the illuminated rim width and spanned from the north to the south of the crater. For a comparison, Cleomedes was checked but nothing unusual was noticed in its shadow. The observer notes that Elger also saw a warm brown or sepia tone. ALPO/BAA weight=1.
On 1959 Nov 17 at Ut 22:00 an unnamed observer saw a light in Plato. The Cameron 1978 catalog ID=725 and weight=1. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT07:03-07:27, R. Manske (Sun Praire, WI, USA, 1 "refractor) found the colours pink and blue on Aristarchus, like the previous day, however this time there was also an orange tinge on the "back"" (North?) rim of Sinus Iridum and the same too on mare Crisium, all the way past Plato, in the direction of Cassini. This colour was not seen at higher magnifications. The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on Cassini all the way past Mare Imbrium edge, Plato etc - maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on Mare Imbrium edge all the way past Plato upto Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on Plato all the way past Mare Imbrium edge upto Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on the north? wall of Sinus Iridum and over a large part of the north of Mare Imbrium - "maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1963 Nov 04 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral line dpeth anomaly? The cameron 1978 catalog ID=781 and weight=5. The ALPO/BAA weight=4.
Posidonius 1849 Feb 11 UT 02:00? Observed by Schmidt (Athens, Greece, 7" refractor) "Bright little crater in it was shadowless. Schroter saw repeated changes in it & others & once saw this crater's shadow replaced by a gray veil. Gruithuisen saw the same thing as Schroter in 1821." NASA catalog weight=4 (high). NASA catalog ID #128. ALPO/BAA weight=3.
Aristarchus 1964 Aug 26 UT 02:00-03:00 Observed by Genatt, Reid, (Greenbelt, MD, 16" reflector, x360, S=P-G), and Lindenblad (Washington, DC, USA, 26" refractor) "Red and Blue bands. Grew thinner & shorter. Alerted Naval Obs. One obs. tho't he saw Phenom. but not sure. (confirmation ?). (prof. astronomers, but not lunar observers)" NASA catalog weight=5 (very high). NASA catalog ID #844. ALPO/BAA weight=3.
On 1992 May 20 at UT 11:15 D. Weier (Sun Prairie, WI, USA, naked eye and 7x50 binouculars, sky conditions excellent) noted that Aristarchus and, an area, were very bright to the eye. In binoculars the feature was quite sharp and distinct, "> anything else on the Moon". When observing please try using your eyes alone and then a small aperture and low magnification. The Cameron 2006 catalog ID=447 and the weight=2. The ALPO/BAA weight=1.
Proclus 2001 Nov 04 UTC 07:00-07:43 "Robin Gray of Winneucca, Nevada, U.S.A. reported a contrast effect and brightening in the crater Proclus. Using a 15.2 cm refractor he conducted a Moon blink search with Wratten 25a and 38a blue filters. His report goes as follows: Moon Blink carried out. In Red 25 Proclus looked nearly the same as in white light. Through the Blue 38a filter, however, only the brilliant lit south east wall was clearly visible. The northeast wall was very dim with this filter. With no filters the NE and SE wall were brilliantly lit, the SE wall was almost as bright as Aristarchus. A thread like strip along the NW wall, possibly the rim of the crater, was also brilliantly illuminated. The interior of the crater was a featureless stygian black with the exception of a brilliant (intensity 9) thread of light that ran parallel to the illuminated east wall. Whether this was an L.T.P. or an optical effect of atmospheric turbulence is unknown, did not see anything similar elsewhere along the terminator though" ALPO/BAA weight=3.
On 1980 Aug 29 at UT07:32 D. Loudernack (South Bend, WA, USA, 8" reflector, x140) found the south wall to have a broad dark band (only visible in red light) at its base that covered nearly all of the southern half of the crater. The brightness reading was 8.4 (in blue light) and 4 (in red light). Cameron 2006 catalog ID=107 and weight=3. ALPO/BAA weight=3.
On 1958 Nov 01 at UT 00:00 a TLP was seen on the Moon (location and observer not given). The Reference for this is Palm, 1967. The Cameron 1978 catalog ID=702 and weight=0. The ALPO/BAA weight=1.
Aristarchus-Herodotus 1967 May 29 UT 06:40-07:25 Observed by Anderson (Manchester, N.Hampshire, 10" reflector, x212, S=G, T=E) "After timing sunset on Theophilus & Cyrillus turned to Aris.-Herod. At 0640 saw red- brown color centered at ?=.685, eta=+.390. Glow strongest at largest area at 0640. Decreased in area but not in intensity to 1/2 its size at 0648. At 0650 color gone. Seen again at 0658 but not so pronounced. Faded out at 0700, obs. terminated at 0725. (Haas thinks it might have been atm. dispersion at such low alt. of 12-17 deg)." NASA catalog weight=1. NASA catalog ID #1038. ALPO/BAA weight=1.
On 1981 Dec 16 at UT 17:45 B.W. Chapman, Kingston-Upon-Thames, UK, 11.5cm refractor, seeing II, trasnparency Fair) found the east outer ridge brighter in red - inclined to blue. The ALPO/BAA weight=1.
On 1981 Dec 16 at UT 17:45 B.W. Chapman, Kingston-Upon-Thames, UK, 11.5cm refractor, seeing II, trasnparency Fair) found the west inner ridge lighter in red, and so to the east and south- west floor. The ALPO/BAA weight=1.
On 1980 Aug 31 at UT 08:00? D. Louderback (South bend, WA, USA, 8" refletor x140) found the north wall to be very bright in red light (this is not normal as it is usually bright in blue - according to Cameron). The brightness was 9.7 (red) and 9 (blue no filter)compared to Eimmart's 8.7. Louderback thought that they observed an orange-yellow tinge. Cameron 2006 catalog ID=108 and weight=3. ALPO/BAA weoght=2.
Aristarchus 1976 Nov 13 UT 05:25 Observed by Bartlett (Baltimore, MD, USA, 3" refractor, 54-200x, S=6, T=4) "Floor 8deg except S.=6deg which is also granulated & la pale yellow. Different aspect fr. other obs. at same col. Viol. in outer nimbus. Bright blue-viol. glare where viol. radiance was on 11th. SWBS still large & 9 deg bright." NASA catalog weight=4 (high). NASA catalog ID #1457.
Alphonsus 1964 Oct 27 UTC 05:18-06:10 Observed by Hall, Johnson, Weresulk (Pt. Tobacco, MD, USA, 16" reflector x400, S=5-7). "Red spot. Pink glow detected with Trident MB & seen visually too." NASA catalog weight=5. NASA catalog ID #863.
On 1964 Jan 06 at 02:00? Markov and Khoshlova (Russia) observed anomalous IR radiation on the Moon. The Cameron 1978 catalog ID= and weight=5. The ALPO/BAA weight=3.
On 1982 Aug 11 at UT03:30-04:15 Mobberley (Suffolk, UK) obtained a photograph and made a sketch that revealed a needle-like shadow from the west wall to near by the central craterlet - the latter was quite clearly visible. What were not visible were the other four craterlets. The Cameron 2006 catalog ID=183 and weight=4. The ALPO/BAA weight=2.
Alphonsus 1958 Nov 03 UT 02:30-03:30 Observed by Kozyrev, Ezerski (Pulkova Observatory, Crimea, Ukraine, 50" reflector, 23A/mm spectrograph) UT03:00-03:30 "C.p. redder than rest; emiss. spect. in 4756A, 4100, 3950A (C3), 5165, 5130A (Swann bands) 3 spect. over 3.5 h. Image of c.p. weakened in viol. light on spect. Noted visual decrease in brightness & reddish glow. Decrease in bright, & unnusual white color(at 0300h- 0330h). Sudden decrease in vis. bright. Spect. started -- gave norm. Spect. (0330-0340h), conditions almost identical to Alter's on Oct. 26, 1956. Nothing seen on Nov. 2-3" NASA catalog weight=5. NASA catalog ID #703. ALPO/BAA weight=5.
Aristarchus 1976 Nov 14 UT 06:09 Observed by Bartlett (Baltimore, MD, USA, 3" refractor, 54-200x, S=5-4, T=5) "Walls & floor 8deg except S.= 6deg, SWBS now smaller but still 9deg. S.floor still granulated & now yellow-brown. Strong viol. tint still on outer nimbus but now viol. radiance (gas?) again on ENE rim as on 11th, but not as on 13th" NASA catalog weight=4 (high). NASA catalog ID #1458.
On 1994 Jan 04 at UT21:00 J. Nibbering (Rosendaal, Netherlands) obtained a photograph that shows a large crescent of light centred on Tycho crater, but includes also: Lilius, but not to Clavius. Cameron suspects strongly that it was caused by camera lens flare. The Cameron 2006 catalog ID=471 and the weight=5. The ALPO/BAA weight=1.
On 1882 Apr 11 at UT 21:00 Williams (England, 6.5" reflector) observed Plato at sunset (date Cameron gives is calculated from #229) and saw a curious phosphorescent glimmer in the crater where he had seen a luminous milky appearance before. at sunrise. The cameron 1978 catalog ID=230 and weight=3. The ALPO/BAA weight=3.
On 1963 Nov 10/11 at UT 23:35-00:32 Kopal (Pic du Midi, France, 24" refractor) observed a TLP in Copernicus. Cameron says that the date maybe a misprint, should be 11/1/63? - sunset terminator at 25W and Copernicus in dark. The Cameron 1978 catalog ID=782 and weight=0. The ALPO/BAA weight=1.
On 1963 Nov 10/11 at UT 23:35-00:32 Kopal (Pic du Midi, France, 24" refractor) observed a TLP in Kepler. Cameron says that the date maybe a misprint, should be 11/1/63? - sunset terminator at 25W and Copernicus in dark. The Cameron 1978 catalog ID=782 and weight=0. The ALPO/BAA weight=1.
On 1989 Jun 28 at UT 08:39-09:00 D. Darling (Sun Praire, WI, USA, 3" refractor, x36) discovered that at this time Mons La Hire was the brightest feature on the Moon. LaPrice was also very bright. Cameron quotes that Darling recorded that LaHire had a brightness of 7.0 and LaPlace=7.5. Darling did not think that this was a TLP. The Cameron 2006 catalog ID=369 and weight=0. The ALPO/BAA weight=1.
On 1989 Jun 28 at UT 08:39--9:00 D. Darling (Sunpraire, WI, USA, 3" refractor, x36) noted that promontorium LaPlace was very bright. LaHire brigtness was 7.0 and LaPlace was 7.5. Darling suspects that this was not a TLP because "as did not have mother-of-perl appearance as seen on Piton at times"The Cameron 1978 catalog ID=369 and the weight=0. The ALPO/BAA weight=1.
Grimaldi 1971 Jun 18 UTC 02:12-02:31 Observed by Jorgensen (Denmark, 36" refractor, 60, 200x, seeing good) "Dark reddish spot in SW part of crater. At 60x. Became clearer at 200x & seen in midwest also. At 0331h phenom. clearest in west, while S. region had faded. Air turb. & dawn ended obs. at 0331h. Seen best in yellow filter, well in red, invis. in green & blue." NASA catalog weight=3. NASA catalog ID #1298. ALPO/BAA weight=3.
On 1821 July 25 at UT 03:30 Gruithuisen (Munich, Germany) observed, near Aristarchus, some brilliant flashing spots on the Earthlit side of the Moon. These disappeared after a short while then re-appeared. The Cameron 1978 catalog ID=90 and weight=4. The ALPo/BAA weight=3.
On 1963 Nov 11 at 23:30UT Jacobs (Flagstaff, AZ, USA, 24" refractor, seeing=very good) observed a reddish-orange colour in Aristarchus crater and a sparkle in some areas. The Cameron 1978 catalog weight=3. The ALPO/BAA weight=3
On 1982 Nov 11 at UT 17:00-17:30 E.V. Arsyukhin (Moscow, Russia, 3" reflector) saw three stationary dark spots suddenly appear in Mare Crisium. There was one on the north and the other two in the south west to south. They lasted approximately 30 minutes and then promptly vanished. Cameron says that it cannot be this date because the Moon was not visible at 17:00UT Suggests 05:00-05:30UT? The Cameron 2006 catalog ID ID=189 and weight=3. The ALPO/BAA weight=2.