were fainter. The third (about 0.066 deg from the northern limb) showed an erruption of fire or luminous matter. The brightness of this third volcano was much brighter than Mechain's comet. Webb thinks that these other two volcanos were Menelaus and Manilius. The Cameron 1978 catalog ID=32 and weight=4. The ALPO/BAA catalog weight=3.
were fainter. The third (about 0.066 deg from the northern limb) showed an erruption of fire or luminous matter. The brightness of this third volcano was much brighter than Mechain's comet. Webb thinks that these other two volcanos were Menelaus and Manilius. The Cameron 1978 catalog ID=32 and weight=4. The ALPO/BAA catalog weight=1.
were fainter. The third (about 0.066 deg from the northern limb) showed an erruption of fire or luminous matter. The brightness of this third volcano was much brighter than Mechain's comet. Webb thinks that these other two volcanos were Menelaus and Manilius. The Cameron 1978 catalog ID=32 and weight=4. The ALPO/BAA catalog weight=3.
On 1790 Jan 17 at UT 1800 Schroter (Lilienthal, Germany) observed a small hazt spot of light in the vicinity of Aristarchus crater. The 1978 Cameron catalog ID=65 and the weight=4. The ALPo/BAA weight=1.
On 1973 Feb 23 before UT 23:00 P. Moore (Selsey, UK) reported activity detected in Aristarchus. Fitton ovbserved from 23:40- 00:20 and obsrved nothing unusual except for a minute white area, about 1 km in diameter about 2km north of the central peak. This spot kept on coming and going in the seeing. Fitton regarded this as a permanent spot, although he had never noticed it before. Nor could Fitton see the colour that he had noticed on the previous night. A BAA report. ALPO/BAA weight=1.
William Herschel and Mrs Lind saw a red, 4th magnitude brightness, less than 3 arc sec in diameter. Herschel believed that he was seeing a lunar volcano in erruption.
the previous night". Its diameter is less than 3" (5-6 km) as judged by comparing with the angular diameter of Jupiter and also Jupiter's third satellite (the diameter of the active part of the volcano was at least twice the angular diameter of Jupiter's Moon). The shape was an irregular round figure with very sharply defined edges. It resembled a small piece of burning charcoal, when it is covered by a thin coat of white ash. The other two volcanos were much further towards the centre of the Moon and resembled large faint nebulae that are gradually much brighter in the middle; but with no well defined luminous spot within them. These three spots are plainly to be distinguished from the rest of the marks upon the Moon; for the reflection of the Sun's rays from Earth is, in its present situation, sufficiently bright with a ten-foot reflector, to show the Moon's spots, even the darkest of them. Such similar phenomena were not perceived in the previous month, despite using the same telescope. The volcano was not as bright as his 4th May 1783 sighting (resembling a 4th magnitude star as seen with the naked eye), though the latter was smaller in diameter. Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of 4. The ALPO/BAA catalog weight is 3.
the previous night". Its diameter is less than 3" (5-6 km) as judged by comparing with the angular diameter of Jupiter and also Jupiter's third satellite (the diameter of the active part of the volcano was at least twice the angular diameter of Jupiter's Moon). The shape was an irregular round figure with very sharply defined edges. It resembled a small piece of burning charcoal, when it is covered by a thin coat of white ash. The other two volcanos were much further towards the centre of the Moon and resembled large faint nebulae that are gradually much brighter in the middle; but with no well defined luminous spot within them. These three spots are plainly to be distinguished from the rest of the marks upon the Moon; for the reflection of the Sun's rays from Earth is, in its present situation, sufficiently bright with a ten-foot reflector, to show the Moon's spots, even the darkest of them. Such similar phenomena were not perceived in the previous month, despite using the same telescope. The volcano was not as bright as his 4th May 1783 sighting (resembling a 4th magnitude star as seen with the naked eye), though the latter was smaller in diameter. Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of 4. The ALPO/BAA catalog weight is 2.
There were two other volcanos were much further towards the centre of the Moon and resembled large faint nebulae that are gradually much brighter in the middle; but with no well defined luminous spot within them. These three spots are plainly to be distinguished from the rest of the marks upon the Moon; for the reflection of the Sun's rays from Earth is, in its present situation, sufficiently bright with a ten-foot reflector, to show the Moon's spots, even the darkest of them. Such similar phenomena were not perceived in the previous month, despite using the same telescope. The volcano was not as bright as his 4th May 1783 sighting (resembling a 4th magnitude star as seen with the naked eye), though the latter was smaller in diameter. Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of 4. The ALPO/BAA catalog weight is 2.
East of Picard (56E, 15N) 1877 May 15 UT 20:30 Observed by an unknown observer (in England?) "Bright spot. (white patch) there unlikely to be bright at sunrise normally)." NASA catalog weight=3. NASA catalog ID #189. ALPO/BAA weight=2.
On 1978 Jan 12 at 08:21UT (assuming this is not local time) V.A. Golubev (Ussurian Sam Station, Vladivostock, Russia, x100) saw on the western edge of the Moon an occultation of the magnitude 6? star ZC2394. Just prior to the occultation, between the star and the dark limb could be seen a bridge of light. The ALPO/BAA weight=1.
On 1980 Nov 10 at UT18:05 J-H Robinson (Teighmouth, Devon, UK, Seeing III, Transparency poor, Filters Wratten 25 (red) and 44A(blue)) found the area to be bright in red and dull in blue - but suspected that this might have been a permanent colour blink e.g. natural colour. This does not have an entry in the 2006 Cameron catalog. ALPO/BAA weight=1.
On 1980 Nov 10 UT 17:55-18:15 J-H Robinson (Teighmouth, Devon, UK) observed the floor patches in Plato to be easy in red, but not so well seen in blue. This is a BAA Lunar Section report. ALPO/BAA weight=1. Note the month or day must be wrong!
Picard 2002 Sep 10 UT 02:30-03:21 Observed by Gray (Winnemucca, NV, USA, 152mm refractor x248,S=2-3, T=5) "observed in White light and through Wratten Red 25 and Blue #38A filters. The crater through the Red 25 filter looked very similar to the view in White light. Using the Blue 38A filter Picard almost dissapeared - it looked like a dim, faintly observable black spot with the sunlit, east facing west crater wall barely visible. Observer had not observed Picard very often, so was not too familiar with it but it seemed odd that it almost vanished through the blue filter." ALPO observational report. The ALPO/BAA weight=3.
A guest star trespassed against the moon. Cameron suspects that this was a meteor? ALPO/BAA catalog weight=1. Cameron 2006 catalog weight=0. Julian date 1356 May 03. Gregorian date 1356 May 11.
In 1824 May 01 at UT 21:00 Gobel (Koburg, Germany) observed near Aristarchus, a blinking light of magnitude 9-10, in Earthshine. The ALPO/BAA ID=99 and the weight=4. The ALPO/BAA weight=3.
In 1948 Aug 09 at UT 02:40 Woodward (Toronto, Canada, sky very clear) observed, using a telescope, a bright, bluish-white to greyish-yellow, 3 sec duration flash in Earthshine. The flash was between magnitude 0 to 1 if one were looking for a similar magnitude star in the sky without a telescope. There was possibly a very slight motion of the flash in a southerly direction. Also there were two terminal bursts. Cameron suggsts that this might have been a meteor? Ref: Moore, P.A. Guide to the Moon (1953), p117. The Cameron 1978 catalog ID=508 and weight=0. The ALPO/BAA weight=1.
On 1970 Jul 07 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3" refractor, x60, x100, x135, seeing=good) observed the following in Aristarchus: "Similar conditions as last night (#1264) but diminished in brightness to 40% (to 6deg bright. Real phenom. in the dimming?)". The Cameron 1978 catalog ID=1265 and weight=3. The ALPO/BAA weight=3.
Macrobius 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore, Danmark, 2.5" refractor x58 & x100, seeing=good) "Macrob. was a white ring without outline or shadow. (shad. should have been seen--sun only up 5deg alt. Something was raising albedo from 0 to surround." NASA catalog weight=3 (average). NASA catalog ID #1328.
Proclus 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore, Danmark, 2.5" refractor x58 & x100, seeing=good) "Proclus not as clear as usual" NASA catalog weight=3 (average). NASA catalog ID #1328.
On 1972 Apr 17 at UT 20:10-20:45 Hvidore (Denmark, 2.5" refractor, x58, x100, seeing=good) noted a brightening of the dark limb between Hercynian mountains and Cleostratus crater. Thought that it was due to atmospheric disturbance. Cameron says similar to other reports e.g. No. 1156. The Cameron 1978 catalog ID=1330 and weight=1. The ALPO/BAA weight=1.
In 1824 May 02 at UT 21:00-21:15 Gobel (Germany, seeing = excellent) saw near Aristarchus (47W, 23N) a soft (matte) light like a star seen through mist. Brightness increased suddenly to magnitude 9-10. After several seconds it became weak, finally disappearing. repeated this 3 to 4 times in 15 minutes. The Moon was a very narrow sickle shape and a major feature could be seen in Earthsine. The date given was 1821 but Cameron says it is 1824. The Cameron 1978 catalog ID=88 and weight=4. The ALPO/BAA weight=3.
On 1970 Jul 08 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3" refractor, x60, x100, x135, seeing=excellent) observed the following at Aristarchus: "Conditions again similar (to #1264). Brighter tonite(8 deg) than last nite. but not as bright as on the 6th. Pin pts. of light very accentuated. The radial open hand extended fingers form not so frequently, perhaps because of the larger crescent illum. now.". The Cameron 1978 catalog ID=1266 and weight=3. The ALPO/BAA weight=2.
Cyrillus G 1983 Aug 13 UT 20:17-20:59 L. Paynter (Radcliffe, UK, 22cm reflector, seeing III or better, transparency good). Cyrillus G was relatively bright and surrounded by a shaded area. On increasing the magnification from x65 to x130 he became aware of a diffused "carise" colouration, in and around the crater. The colouration was similar though to other spurious colour on the Moon, but unlike other areas affected by spurious colour, was more diffuse and spread out and not so concentrated. In view of some uncertainty by the observer, ALPO/BAA weight=1.
In 1963 Oct 22 at UT 21:00? Andre (Belgium, 2.25" refractor) noticed that Posidonius A's shadow was not seen when it should have been seen. The Cameron 1978 catalog ID=777 and weight=3. The ALPO/BAA weight=2.
On 2012 Mar 28 P. Grego (Cornwall, UK, seeing II, 100mm refractor, x132) observed a patch of light just inside the NW rim of Menelaus on the shadowed wall or floor. Computer visulaiztions of the illumination conditions using a digital elevation model failed to produce this effect. ALPO/BAA weight=3.
Cepheus A 2000 Oct 04 UTC 08:15-08:50 Observer: Maurice Collins (New Zealand, 90cm ETX) - observer noted that crater was extremely bright - wasn't sure if this was normal and at the time rated it as the brightest (contrasty?) crater that he had ever seen on the Moon. Many years later he suspected that he may have mis-identified the crater. This still leaves us with thr problem as to why a crater should be so bright in this region, and if so, which one? ALPO/BAA weight=1.
On 1915 Apr 21 at UT 1800? Houdard (France) noticed a special occurrence south of Posidonius which he took as evidence of water vapor. The Cameron 1978 catalog ID=351 and weight=3. The ALPO/BAA weight=2.
In 1982 Sep 24 at 22:45-23:40 K. Marshall (Medellin, Columbia) saw in Theophilus an obscuration on the south west wall close to Cyrillus and furthermore it had a red / mauve colouration (seen best in a 12mm Ortho eyepiece). Through a Wratten 15 yellow filter the region was quite bright. At23:40UT the obscuration faded. There was plenty of detail in the region between Theophilus and Cyrils. The Cameron 2006 catalog ID= 184 and the weight=3. The ALPO/BAA weight=3.
A.S.Williams of West Brighton, UK, using a 2.75" Acromatic refractor (x75, definition good, but it was too windy to use the 5.25") noticed that the mare was a mass of light streaks and spots. This was not considered unusual, but these features were unusually plain, distinct and brught, especially the streaks. The observer could not recall seeing the streaks so bright and clear with this instrument before, and indeed hardly ever with the larger 5.25" telescope. The observer continued to observe Mare Crisium on many nights for several months and comments that such an unusual exhibition was later seen perhaps once every 2-3 lunations. They are uncertain how much this effect depends upon the state of the Earth's atmosphere. This TLP does not make it into the Cameron 1978 catalog and so may not be a TLP - however it has been included, just in case, and to try to understand what was actually seen. ALPO/BAA weight=1.
On 1887 Nov 23 at 16:15-17:00 UT Von Speissen & others of Berlin, Germany, using a 3.5" refractor (x180), saw a "Triangular patch of light (time in Middlehurst catalog wrong? Moonrise was at > 18:30h. If year =1887, age=8.8 days & time OK. must be same observation as ID=256 in Cameron 1978 catalog - note similarity of names and also the reference date). Cameron 1978 catalog ID=258 and weight=1.
Peirce A (Swift=IAU name) 1937 Mar? 23? UTC 22:00 Observed by Wilkins (England, UK, 12.5" reflector) "Obscuration on floor if crater. Crater invis. (similar to #394, 396)." NASA catalog weight=4 (high). NASA catalog ID #412. Note this is almost certainly supposed to be 1934 Dec 23!
SE of Ross D 1964 Aug 16 UT 04:18-05:20 Observed by Harris and Cross (Whittler, CA, USA, 19" reflector?) "Bright area. Condensations varying with time" NASA catalog weight=3. NASA catalog ID #840. ALPO/BAA weight=3
Alphonsus 1967 Aug 13 UT 18:40-18:55 Observed by Horowitz (Haifa, Israel, 8" reflector?) "Glow or hazy patch seen while using filters. Brighter than background. Not seen after 2055 or next nite" NASA catalog weight=3 (average). NASA catalog ID #1041.
On 1972 Apr 21 at UT19:01 Mattingly (Apollo 16 commander, in orbit around the Moon, using his naked eyes) saw a bright flash from below his horizon on the lunar farside (approximate longitude=180 deg). he was dark adapted at the time. However no sesimic event was recorded and so Cameron suspects that this was not a meteor impact but a cosmic ray striking his eye. The Cameron 1978 catalog ID=1331 and weight=3. The ALPO/BAA weight=3.
A track of reddish light, like a beam, was seen crossing the shadowed floor of Plato.This TLP has an ID No. of 17 in Cameron's 1978 catalog and a weight of 3. It has an ALPO/BAA weight of 2.
Plato 1882 Mar 27 UTC 20:10-21:00 Observer: A.S. Williams (Brighton, UK, 5.5" saw the shadow filled floor of Plato at Sunrise with a "Glowing and curious milky kind of light". About 1 hour after sunrise at Plato, there was no trace of this effect. The TLP filled the whole floor except at a quarter of the diameter from the east wall which was actually quite black. The observer saw a curious phosphorescent glimmer at sunset (April11th?). Cameron comments that Birt, Nelson and Waugh saw obsecuring mist or fog in Plato on many occasions. Cameron 1978 catalog ID=229 and weight=3. ALPO/BAA weight=3.
On 1972 Apr 22 at UT 18:58-00:28 Hopp (75mm refractor, 1200mm focal length,transparency 4 out of 5 and seeing 4 out of 5, located at 52deg 30' N and 13deg 15'E) Censorinus brighter than normal relative to Proclus. Published in Hilbrecht and Kuveler, Moon and Planets, 30 (1984) p53-61. ALPO/BAA weight=1.
Clavius 1915 Apr 23 UTC 20:00 Observed by Cook (England?) "Narrow straight beam of light from crater A to B" NASA catalog weight=1 (very poor). NASA catalog ID #352. ALPO/BAA weight=1.
On 2009 May 03/10 UT23:20-00:11 P. Abel (Leicester, UK, 20cm reflector, x312, seeing III-IV) observed that the north east wall was slightly brighter than would have been expected, slightly blurred (not seeing related blurring) and had a strong orange-brown colour. No spurious colour seen elsewhere. A change in eyepieces showed the same effect. No luck in alerting other observers. A drawing was made at 23:20UT and finished at 00:12UT. At 23:12UT part of the inner NW floor had a dull brown colour, whereas before it was grey.By 00:11UT the colour effect was fading and by 00:18 seeing condirions were too bad to continue. M. Cook (Mundesley, UK, 9cm Questar telescope, x80, x130, seeing III, transparency moderate to good) had observed Tycho earlier in the evening at 22:15UT, but had seen no signs of colour. W. Leatherbarrow (Sheffield, UK, 8cm scope, high cloud interuptions and bad seeing) had taken monochrome images at UT 20:07 and 20:10, but these showed nothing unusual, and he checked the crater visually at 00:00-00:30, but detected no colour, although the Moon's low altitude contibuted to poor seeing conditions and some spurious colour was seen. CCD images from M. Collins (Palmerston North, New Zealand) taken at 00:46UT showed nocolour apart from spurious colour on contrasty edges, in no way reflecting what was seen early by P. Abel. The ALPO/BAA weight=2.
On 1975 Mar 22 at UT22:10-22:25 T.Flynn (Edinburgh, UK, 30cm Newtownian, x75) observed 3 large areas on the floor of Plato to be delicately darker in the blue filter. There were of different darkness. He did not regard these as TLP, but permanent blinks. This is a BAA report. The ALPO/BAA weight=1.
On 1991 May 24 at UT 00:05-00:08 UT 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.
On 1997 Dec 09 at UT 18:42-19:02 P. Salimbeni(Cugliate Fabiasco, Italy, 20cm reflector) observed colour on the northern edge of the crater - 23A filter used. This is a UAI reported observation and has come from this organizations web ste. The ALPO/BAA weight=3.
On 1984 Jul 08 at UT 20:10-22:05 P. Moore (Selsey, UK, seeing IV-V) suspected that the floor of Proclus was slightly darker than normal. The Cameron 2006 catalog ID=249 and the weight=1. The ALPO/BAA weight=1.
On 1882 Jan 29 at UT 17:00-17:30 an unknown observer noted an unusual shadow in Eudoxus crater. The Cameron 1978 catalog ID=227 and the weight=2. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.
Gassendi 1967 Jun 18 UT 21:10-22:30 Observed by Whippey (Northalt, England, 6" reflector?) "Faint redness outside NE & SE wall of crater." Moore (10" Armagh refractor, x360) was observing too 22:10-22:40, with and without a Moon Blink but detected no redness, however his observing conditions were not very good at the time. NASA catalog ID #1039. NASA catalog weight=3. ALPO.BAA weight=2.
2004 Jul 28 UT 07:25-07:31 R. Dewitt (Transparancy very poor due to forest fire pollution - Moon looks red, USA, location: Mill Creek, WA) observed several pin point-like orange flashes of light occur (2-5 sec duration each and static wrt the Moon's surface) across the bright illuminated side of the Moon with the naked eye. Other much fainter, almost instantaneous sparkles were seen. The brightest flash seen was of 5 sec duration. Switching to binoculars (15x45, another fainter one was seen too. Binouculars were handed to wife, who also confirmed similar flashes. The ALPO/BAA weight=2.
Plato 1966 Sep 25 UT 23:12-23:35 Observed by Moseley (Armagh, Nortern Ireland, 10" refractor, x140) "Eng. moon blink sys. blinks inside the crater. Very dubious due to low alt. of moon." NASA catalog weight=1 (very low). NASA catalog ID #982.
Gassendi 1967 Jun 18 UT 22:50-23:59 Observed by Whippey (Northalt, England, 6" reflector?) "Faint redness outside NE & SE wall of crater." Moore (10" Armagh refractor, x360) was observing earlier 22:10-22:40, with and without a Moon Blink but detected no redness, however his observing conditions were not very good at the time. NASA catalog ID #1039. NASA catalog weight=3. ALPO.BAA weight=2.
On 1976 Apr 10 at 21:15-21:49UT S.Spencer (60mm refractor x60, seeing quite good) noticed a faint red glow at the south west wall of Gassendi covering a span of about 35 deg arc. The observer had some doubts about this because they were using a small telescope, but thought that they ought to report it, just in case. A BAA Lunar Section report. ALPO/BAA weight=1.
Posidonius 1952 Jul 03 UT 19:13-19:27 Observed by Dzaplashvili, Ksanforalif, Negrelishvili (Georgia, Soviet Union, 13" reflector, polarimeter, S=clear) "Making polariz. mess. of it. Aristotles. Eudoxus. & Aristillus. only Pos. gave higher rdgs. & oscillated while others gave repeatedly same results. 40 other times Pos. was normal. Never had seen such behavior Table gives deflections. Obs. repeated 2X Obs. from 1843-1947h." NASA catalog weight=5. NASA catalog ID #552. ALPO/BAA weight=5.
On 1994 Apr 23 at UT 03:30 the US Navy Clementine Spacecraft, in orbit around the Moon, obtained images of the Cobra Head region of Aristarchus crater that suggested a ~15x colour ratio increase (0.4 microns / 1.0 microns) in comparison with images obtained on 1994 Mar 03. This was presented as a poster paper 18.04 at AAS 31st DPS meeting. However it was later suggested that this was due to incorrect radimetric calibration procedures being followed. The ALPO/BAA weight=1.
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.
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.
Herodotus 1998 Dec 30 UT 18:50-19:10 observed by J.Knott (Liverpool, UK 22cm Newtonian, x216, seeing II, transparency good). Observer reports a bright spot, as bright as the central peak in Aristarchus on the NW rim of Herodotus at 19:10 (still there at 19:15, but the curious thing was that it was not visible earlier at 18:50? Now there is a bright craterlet here, and the observer doubted if what he had seen was unusual - though we have the rise in brightness o20 minutes to account for? The ALPO/BAA weight=1.
Two small conical mountains, near last 4th May eruption, close to the third one that he had seen before, but not these two. They were not on any map.
SE of Langrenous 1947 Aug 28 UT 21:00? Observed by Baum (Chester, England) A long mountain mass, on limb to the SE of Langrenus crater, had a decidedly bluish cast. To the north, on the limb, were several ordinary peaks appearing in profile and some were sharp and pointed. NASA catalog ID=498. NASA catalog weight=3. ALPO/BAA weight=2.
Aristarchus 1963 Oct 30 UTC 22:00? Scarfe (Cambridge, UK) observed a 30% enhancement at 540nm in the spectra of Aristarchus. The Cameron 1978 catalog ID No. is 778 and weight is 5. The ALPO/BAA weight=1 because Oct 30 is not mentioned in Cameron's refernce.
In 1963 Oct 30 UT 22:00? Scarfe (Cambridge, UK) observed a 30% enhancement at 540nm in the spectra of Copernicus. The Cameron 1978 catalog ID No. is 778 and weight is 5. The ALPO/BAA weight=1 because Oct 30 is not mentioned in the ref that Cameron give's to Scarfe's paper.
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 1989 Jun 17 at UT 06:33-07:16 R. Manske (Sun Prairie, WI, USA, 1" refractor) sketched a nebulous spot near to Herodotus crater that at 06:49 (when he tried some filters out) was visile through red, blue and yellow filters, though it was slightly fainter through the red filter. The Cameron 2006 catalog ID=366 and the weight=3. The ALPO/BAA weight=2.
On 1981 Nov 10 at UT 07:54-08:22 D. Louderback (South Bend, WA, USA, 3" refractor and filters, seeing=2-3 and transparency=5) observed a blue light at the Cobra's Head, near Aristarchus, that fell back down to a normal brightness of 7. although the west wall (his point D) went down to 6.5 (this was 8 back on Oct 5). The Cameron 2006 catalog ID=158 and the weight=3. The ALPO/BAA weight=2.
On 1789 Jan 10 at UT 00:00 Seyffer (Germany) observed "a lunar volcano". Cameron comments that this must have been bright as it was near full Moon. The Cameron 1978 catalog ID=56 and weight=4. The ALPO/BAA weight=2.
On 1891 Sep 16 at UT 19:00? Pickering, based at Arequipa, Peru, and using a 12" reflector, saw in Schroter's Valley and the vicinity "Dense clouds of vapor apparently rising from its bottom and pouring over its SW wall torrds Herodotus. He says no activity till day after sunrise & ceases a few days before sunset. (Part of an extensive observing of only a few features under all aspects of lighting. Drawings and Phtos obtained." Cameron 1978 catalog ID=269 and weight=1. ALPO/BAA weight=1.
Aristarchus 1966 Aug 01 UT 00:50-01:20 Observers: Moore, Moseley, Corvan (N.Ireland, 10" refractor) - "Eng. moon blink detected color (red?) on SW wall. Tel. link got other vis. confirm, & also another moon blink."NASA catalog ID=#960, weight=5. ALPO/BAA weight=4.
On 1983 Oct 20 at UT23:40 P. Moore (Selsey, UK) observed that Aristarchus was brighter than normal (as measured with a CED) and much more so that Censorinus, Menelaus, and Proclus craters (in turn). Cameron comments that Moore is a very experienced observer. The Cameron 2006 catalog ID=231 and the weight=4. The ALPO/BAA weight=2.
Aristarchus 1965 Sep 10 UT 04:08-04:38 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x130, x180, S=4, T=3) "S.region of floor granulated, 7 deg bright, very faint brownish tinge; rest of crater 8 deg bright white (confirm. of Presson?)." NASA catalog weight=4 (high). NASA catalog ID #892.
On 1891 Sep 17 at UT 18:00? Pickering, based at Arequipa, Peru, and using a 12" reflector, saw in Schroter's Valley and the vicinity "Varitions in vapor column. Crater D covered. (there are rays here -- high sun effect on them?) Drawings. Time estimated from given colongitude)." Cameron 1978 catalog ID=270 and weight=1. ALPO/BAA weight=1.
On 1990 May 09 at UT08:24-08:28 D. Louderback (South Bend, WA, USA, 3" reflector, x150, Clears sky) noticeed in Promontorium Agarum (Cape Agarum), that at 08:24UT the west point (C) dimmed to a brightness of 6.5 before ragaining its normal brightness at 7. Cameron comments that these are wedge measurements equivalent to 0.5 steps in Elger's brightness scale. No other effects noticed elsewhere. The Cameron 2006 catalog ID=404 and the weight=3. The ALPO/BAA weight=2.
On 1977 Jan 04 at 16:25-17:30 Kozyrev (Pulkovo Observatory, Crimea, Ukraine, Soview Union) "Observed unusual processes on moon. Activity in progress at beginning of obs. Still vis. at 1710, gone at 1730h. Latharn & colleagues found no seismic activity at that timeunder a quick look". The Cameron 1978 catalog weight=4 and ID=1460. The ALPO/BAA weight=2.
On 1977 Mar 04 at UT 20:55-21:18 JH Robinson (Teighmouth, Devon, UK, 26cm reflector, x200, Wratten 25 and 44a filters, seeing steady, transparency varies from fair to very poor and cloud eventually halted observations). Copernicus was very indistinct. All other features examined were normal. This is a BAA Lunar Section observation. ALPO/BAA weight=2.
On 1977 Mar 04 at UT 20:55-21:18 JH Robinson (Teighmouth, Devon, UK, 26cm reflector, x200, Wratten 25 and 44a filters, seeing steady, transparency varies from fair to very poor and cloud eventually halted observations). The floor of Fracastorius is significantly brighter in a red filter than in a blue filter. This is a BAA Lunar Section observation. ALPO/BAA weight=1.
On 1938 Jan 16 at UT 00:00 Barker (Chestnut, England, UK, 12.5" reflector) noticed that Plato crater had a brownish-gold veined surface, colour irregular - laid on a smooth floor. The Cameron 1978 catalog ID=430 and weight=3. The ALPO/BAA weight=2.
On 1976 Feb 14 at UT23:35-0053 LeCroy (Springfield, VA, USA, 4.5" reflector, x75, S=6 and T=4.5). A blue haze was seen on the east side of Aristarchus and red haze on the west side. At 00:00UT details were more clear and at 00:24UT Aristarchus and Herodotus, were seperated. At 00:34UT colours were gone. At 00:35UT blue was on Aristarchus and the area was bright, but was black in a red filter. At 00:53UT the features were clear and the colour gone and the brightness had decreased to 9. Cameron comments that the colour was not due to temp. inversion because of being dark in the red filter, implying a medium). The Cameron 1978 catalog TLP ID is 1428 and the weight=1. This is an ALPO report. The ALPO/BAA weight=1.
On 1996 Dec 24/25 at 18:12-00:02UT P. Moore (Selsey, UK, using a 15" reflector x250-360, and seeing III) saw a strong orange colour on the south wall and floor of Aristarchus. He suspected it to be spurious colour but could not detect colours on any other craters. The colour remained but at 18:12 UT he suspected a trace on colour on Mons Pico but was not sure. However he reported it to the TLP coordinator of the BAA Lunar Section. The orange in Aristarchus gradually faded and had almost vanished by 00:20UT when seeing was too bad to continue observing. At 02:30UT he was able to re-observe again and there was still a very very slight hint of orange in Aristarchus - but he comments that if he had not been looking for it he might not have noticed. ALPO/BAA weight=2.
On 1898 Apr 06 atUT 23:00 Pickering (Cambridge, Mass, USA, 15" refractor?) observed in Schroter's valley and it's vicinity "Variations in vapor col. Crater E now most conspicuous instead of C which is now least conspic., but not covered with vapor. (in drawing 2 gaps show, time est. fr. given ol. ". The cameron 1978 catalog ID=298 and weight= 3. The ALPO/BAA weight=2.
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 01/12 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.
On 1963 Nov 02 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral line dpeth anomaly? The cameron 1978 catalog ID=780 and weight=5. The ALPO/BAA weight=4.
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. The Cameron catalog says that Moore saw something between 23:30 and 03:00, but it is not clear what exactly, or whether it was Copernicus, Kepler, or Aristarchus? The Cameron 1978 catalog ID=779 and weight=5. The ALPO/BAA weight=5.
On 1980 Sep 24 at UT 21:13-23:50 P.Moore (Selsey, UK) at 22:45 saw loss of detail in the north west wall, especially in red light, but also slightly in blue light too. By 22:48 there was activity on the crater floor i.e. the four bright spots were visible in white light but not in red. In blue the central spot was seen and there were dark radial streaks to the south wall and south east. At 22:50 there was a loss of detail. Other craters were normal. At 23:08 the floor was dark in red, but some details were visible in blue. the effect had finished by 23:35. At21:34 J-H Robinson found Plato to be normal and no blinks, though floor clearer in red than in blue, however the floor detail had gone by 21:57. Blair suspected a dusty patch in north of Plato, especially in red light. at 21:57 and it started spreading at 21:13, then east at 21:15 and then north. Though it faded at 21:25 but was back again at 21:35, and Moon blink colour filters still gave a reaction at 21:50 - the TLP remained strong until 23:50UT. The Cameron 2006 catalog ID=110 and weight=5. The ALPO/BAA weight=4.
On 1980 Sep 24 at UT21:34 J-J. Robinson (Teighmouth, Devon, UK, 10" reflector, x200, seeing=III) found, using a Moon Blink device, that Fracastorius blinked on the northern side in the red filter. Cameron 2006 catalog ID=110 and weight=5. ALPO/BAA weight=3.
On 1993 Mar 08 at UT 22:30 R. Titford (England, UK, 8.5" reflector, seeing=III) found a very bright white area on the northern wall, "floor < Mare Imbrium". The Cameron 2006 catalog ID=456 and weight=3. The ALPO/BAA weight=2.
On 1938 Jan 17 Barker (Chestnut, England, UK, 12.5" reflector) noticed that Plato crater had a brownish-gold veined surface, colour irregular - laid on a smooth floor. It had extended further E than on the previous night. The ALPO/BAA weight=2.
Aristarchus 1978 Nov 15 UTC 19:10-22:15 Observed by Foley (UK) - Colouration seen - violet spot on north west interior. There was no colour on the crater floor from 19:10-20:05, but suddenly the floor colour changed to a slate blue-grey colour from 20:05-21:45UT. Colour was not detected elsewhere. CED brightness measurements taken - these were normal for Proclus, Mons Pico, Mons Piton and Tycho, but for showed that Aristarchus varied in brightness. Crater Extinction Device (CED) used. Seeing Antoniadi III, Transparancy Fair.
Aristarchus 1965 Sep 11 UT 08:08-08:15 Observed by Cross,Rasor (Parlos Verdes, CA, USA, 22" reflector x133, S=F-P) "Red glows,. Photos obtained but do not show phenom. Haze terminated obs." NASA catalog weight=5 (very high). NASA catalog ID #894.
Mare Crisium 1948 Jul 21/22 UT 22:00?-01:00? Observed by Moore (England, 12" reflector) "Almost featureless except for Peirce & Picard" NASA catalog weight=3. NASA catalog ID #506. ALPO/BAA weight=2.
Plato 1966 Aug 02 UT 06:26 Observed by Kelsey (Riverside, CA, USA, 8" reflector x300) "Again E(IAU?) wall would not focus" NASA catalog weight=2 (low). NASA catalog ID #962.
On 1891 Sep 18 at UT 21:00 Pickering, based at Arequipa, Peru, and using a 12" reflector, saw in Schroter's Valley and the vicinity "Varitions in vapor column. Drawings. Time estimated from given colongitude)." Cameron 1978 catalog ID=271 and weight=1. ALPO/BAA weight=2.
Aristarchus 1964 Sep 22 UT 02:54-03:03 Observed by Bartlett (Baltimore, MD, USA, 4" refractor x240, S=5, T=5) "Bright blue- viol. gl. on NE rim & EWBS; dark viol. nimbus; S. floor 8deg br. rest of crater 7 deg. Red-brown, changed to coppery, to yellow- brown (Gilheany, et al. examined crater later, but did not detect any color in MOON BLINK, so red-brown must have disappeared." NASA catalog ID #851, NASA catalog weight=4. ALPO/BAA weight=3.
Kunowsky 1964 Sep 22 UT 03:25-04:30 Observed by Gilheany, Hall, and Johnson (Port Tobacco, MD, USA, 16" reflector, Seeing=good) "Red area detected by Trident's MOON BLINK (MB) device, (Aris. normal)." NASA catalog weight= 5 (very high). NASA catalog ID #852.
On 1898 Apr 07 at UT 22:30 Pickering (Cambridge, Mass, USA, 15" refractor?) observed in Schroter's valley and it's vicinity "Variations in vapor col. Lge. gap in main column near edge of C. Gap not previously seen, but fine lines crossing it had. E is still most conspic. (time est. fr. col. given)". The Cameron 1978 catalog ID=298 and weight=3. The ALPO/BAA weight=2.
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
East of Picard (56E, 15N) 1877 May 29 UT 00:30 Observed by an unknown observer (in England?) "Bright spot. (nr. sunset, should normally be faint? as in Kuiper atlas where it is invisible.)" NASA catalog weight= 3. NASA catalog ID #191.
Plato 1965 Sep 12 UT 05:00 Observed by McCord (Mt Wilson Observatort, CA, USA, 60" reflector+spectrometer) "line depth ratios in spectra a/b (H), c/d (K) were abnormally high compared with 23 other areas, but not quite as pronounced as other areas on other dates." NASA catalog weight=5 (very high). NASA catalog ID 895. ALPO/BAA weight=5.
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.
Mare Crisium 1973 Mar 20 UT ~19:55 Robinson (Devon, UK) patches clearer in a red filter than in a blue filter. This is unlikely to be a TLP, more likley something to do with effects in our atmosphere, but is worth checking out, just in case. ALPO/BAA weight=1.
Aristarchus 1978 Nov 16 UTC 19:40-19:45. Observer: Mark Kidger (UK, 6" refractor x40, x133, x200, seeing poor-boiling) - saw the north wall of Aristarchus to be an electric blue. No spurious colour was seen in other craters (despite the conditions). No other observers were able to confirm this due to the weather. ALPO/BAA weight=2.
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.
Plato 1971 Apr 13 UT 03:30-04:30 W. Cameron (Greenbelt, MD, USA, 36" reflector & 6" grating) "spectrum obtained showed an extra absorption line at 4908+/-4A & possibly another. No other of 6 spectra of other features on the plate show it. No other of 20 spectra of Plato, including another on the same nite show it. Further reduction & analysis remain to be done." NASA weight=5. NASA catalog ID=#1291. ALPO/BAA weight=5.
Plato 1965 Sep 13 UTC 05:40 McCord (Mt Wilson, CA, USA, 60" reflector with spectragraph) - "Line depth ratio in spectra a/b (H), c/d (K) were abnormally high compared with 23 other areas, but not quite as pronounced as other areas on other dates." NASA catalog weight=5 (very high), NASA catalog ID #895.
Aristarchus 1987 June 14 UT 04:43-08:00 Observed by Curtis, Jacobs, and Manske (Yanna Research Station, Carl A. Fosmark Jr. Memorial Observatory, Madison Astronomical Society, WI, USA, 17" f4.5 Dobsonian and the 8" f10 SCT Celestron) "On the night 13/14 June 11:42 P.M. to 3:00 A.M. local time or 14 June 04:43 to 8:00 UT. Three people witnessed this event and all three of them observed with three different telescopes to rule out instrumental aberration. These three pople were members of the Madison Astronomical. The three observers involved are Keith Curtis, Tom Jacobs and Robert Manske. Keith Curtis took detailed notes of the event as he observed it. The observations were made at the Yanna Research Station, Carl A. Fosmark Jr. Memorial Observatory of the Madison Astronomical Society following the annual picnic. This is MAS dark sky site and is located near Brooklyn, Wisconsin. As they were observing the night sky they saw the Moon rising and noted a strong orange color due to atmospheric effects. Approximately 1/2 hour after the Moon rise they decided to turn one of the telescopes on it. It was at 04:43 UT, it was noted by Keith Curtis that as the Moon rose it began to loose the horizon color effect and return to its normal color, but he found that the red color was not leaving the crater Aristarchus. At first they all thought this was an atmospheric effect but decided it was a real event since they detected a second crater (Euler) showing red color on its rim. Keith Curtis said that the red color was very strong on the Western rim of Aristarchus with a strong blue/green or aqua green on the Eastern rim. Keith also reported that the glow opaque enough to prevent viewing of the interior of crater Aristarchus. He said they observed until 3:00 A.M. daylight saving time or 8:00 UT. and the red glow was still visible when they ended their observing session. Robert Manske description of the event was that he saw two craters glowing a strong red and blue giving it a rainbow effect. He said that the red glow was so strong he was unable to see the craters underneath during the entire observing session. Concerning the orientation of the red and blue was on the crater he stated that he did not remember since he failed to take any notes. Concerning whether there was any difference in appearance when they observed it with the 17" f4.5 Dobsonian and the 8" f10 SCT Celestron. He said that he could not detect any difference to the lunar formation or the color on it regardless of which telescope he used. He did mention that as the Moon was rising it had the appearance of one large Maria in the center of the disk. This illusion disappeared as the Moon rose higher into the sky. When talking to Tom Jacobs he said that he remembered that he did not see anything on the Moon until 1/2 hour after Moon rise. He said that he remembered that the entire Aristarchus region had a strong reddish or pinkish color. All three witness all reported variations in the type of color they were seeing. This would indicate that individuals color perception is a major factor during a color event. Keith Curtis saw a very strong coloration around the rim of the craters, where Robert Manske saw the entire region covered by this red and blue coloration and he could not see the interior of the craters underneath. Tom Jacobs reported that the glow covered the entire crater but he could see the crater underneath it. The Moon never achieved a height greater than 21 degrees so it could be that what the observers saw was caused by the Earths atmosphere. Further details can be found on the following web site: http://www.ltpresearch.org/ltpreports/ltp19870614.htm " ALPO observational report. Cameron 2006 catalog ID=303 and weight 5. ALPO/BAA weight=3.
Plato 1965 Sep 13 UTC 07:20 McCord (Mt Wilson, CA, USA, 60" reflector with spectragraph) - "Line depth ratio in spectra a/b (H), c/d (K) were abnormally high compared with 23 other areas, but not quite as pronounced as other areas on other dates." NASA catalog weight=5 (very high), NASA catalog ID #895.
On 1992 Feb 21 at 03:00-03:55UT C. Brook (Plymouth, UK, 3" refractor x116, seeing II) found that Janssen K was very bright. Cameron 2006 catalog extension ID=441 and weight=2. ALPO/BAA weight=1.
Schroter's Valley 1898 Apr 09 UT 04:00 Observed by Pickering (Cambridge, Mass. USA, 15" refractor) "Variations in vapr col. Break in main col. Similar to earlier. time est. fr. given col. Date given is 8th LT =9th UT?."NASA catalog weight=2 (low). NASA catalog ID #300.
On 1993 Dec 31 at UT 05:00-07:40 S. Beaumont (Cambridge, UK, 12" reflector) "saw a patch of hazy light to NW (from c.p. alpha) at 0550 craters B & J shadow of alpha had not reached E wall yet, but at 0536 it did. Alpha > at 0550. Craters B & J to SE had faded, vanished at 0630. Hazy patch remained around peak, alpha low mainly to NE like a comet's tail. Slightly reddish fringe to E wall. (shown in sketch)". The above has been quoted in full from the Cmeron catalog because the catalog desription is slightly ambiguous and any attempted summary might make the description more unreliable. The cameron 2006 catalog ID=470 and the weight=3. The ALPO/BAA weight=2.
Cassini/Tycho 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho appears brighter than Cassini bright spot in red filter. In violet filter Tycho and Cassini bright spot appear equally bright. (Tycho and Cassini bright spot in Deslandres - added at bottom of report?). 2.5" refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=1.
Tycho/Cassini 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho appears brighter than Cassini bright spot in red filter. In violet filter Tycho and Cassini bright spot appear equally bright. (Tycho and Cassini bright spot in Deslandres - added at bottom of report?). 2.5" refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=2.
Plato 1886 Nov 14 UT UT 21:45 Observed by Lihou (France?) "Brilliant band N-S, area marked G in NE was only slightly visible, poorly defined. Drawing (there were rays on the floor)." NASA catalog weight=3 (average). NASA catalog ID #253.
On 1981 Oct 26 UT 20:44-21:14 M. Mobberley (Bury St Edmunds, UK, 14" Cassegrain, seeing III) noticed an ~100deg wide fan on the floor of Theophius, radiating on the central peak upto the surrounding base of the wall next to Cyrillus crater. This fan had a hint of yellow/red. The observer did not consider this to be abnormal - there was certainly no loss of focus here as far as the observer was concerned, and no mention is made of this effect in later observations that night. Plenty of spurious colour was reported. The ALPO/BAA weight=1.
Aristarchus 1966 Aug 05 UT 05:22-05:38 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x93, x125, x281, S=4, T=5), "S. part of floor was granulated & est. at 6 deg bright; faint yellow-brownish tint. Rest of crater 8 deg bright white."NASA catalog weight=4 (high). NASA catalog ID 963.
In 1937 Apr 29 at UT 09:30 Firsoff (Glastonbury, UK, 6" reflector and filters) observed a slight greenish colour (Cameron says colour of ground? no TLP?). The Cameron 1978 catalog ID=420 and Weight=4. The ALPO/BAA weight=3.
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.
Theophilus 1965 Jul 18 UTC 08:52-09:01 Observed by Cross, Ariola (Whittler, CA, USA, 19" reflector, x450, S=4, T=3) "Red spots; ruby red within a pink area on c.p." NASA catalog weight=5. NASA catalog ID #885. ALPO/BAA weight=4.
1999 Jan 07 UT 01:57 C. Brook (Plymouth UK, 65mm refractor, x125, seeing good) found this mountain unusually dull. In contrast, Mons Pico, Montes Teneriffe, Montes Spitzenberg, were all normal. ALPO/BAA weight=1.
Plato 1825 Apr 08 UT 01:00 Observed by Gruithuisen (Munich, Germany) "West part of crater brighter than east part". NASA catalog weight=4. NASA catalog ID #106. ALPO/BAA weight=1.
Aristarchus 1971 Jun 13 UT 08:21 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x51, x93, x121) "S. part of floor was brownish & granulated" NASA catalog weight=4 (high). NASA catalog ID #1296.
Aristarchus 1978 Nov 19 UT 22:40-23:05 Observed by Pedler (UK, 12.5" reflector, x200, seeing fair) Blue colour seen and could not focus on this part, where as other craters were nice and sharp in this filter. Aristarchus darker in red light. all other craters were normal in red. Attempts to change the eyepiece did not make any difference to the blue colour. Cameron 2005 catalog ID=43 and weight=4. ALPO/BAA weight=3.
Gassendi 1971 Jun 13 UT 07:22-08:05 Observed by Raimundo Nonato da Silva (Parnaiba, Brazil, 9.5" reflector, x180) "At 0755h variation on W.(IAU?) edge of crater "brightness seemed to become a little darker" as it was gugacious (foggy?), Was not sure it was a LTP. Other features & it were normal from 0658- 0755h". NASA catalog weight=1. NASA catalog ID 1295. ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA, 3.5" reflector, x160, Seeing-very good) suspected blue tinge on north west rim and brown/red on south east rim of Aristarchus crater + focus was slightly difficult. No similar colour effect seen on other craters. Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA, 3.5" reflector, x160) found that Clavius had a "D" shaped crater on its outskirts that made it appear to have a ridge crossing through it. Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1981 Oct 18 UT 22:14022:16 M.Mobberley (Bury St Edmunds, UK, 14" Cassegrain, seeing variable, transparency misty) found that the central craterlet on the floor of Plato was not visible, despite it being visible under similar colongitudes on other nights. Might be due to observing conditions, but observer suspicous. At 02:08 the observer comments that the central craterlet was ellusive, and at 02:42, though it is uncertain whether they regarded it as suspicous still at this stage? ALPO/BAA weight=1.
Triensecker Rille 1915 Jul 03 UTC 00:00? Observed by Markov (Russia) "Several spots changed their shapes compared with Gordeenko's depiction on 5/23/12 see #339; which cannot be explained by light variations." NASA catalog weight=3. NASA catalog ID #356.
On 1891 Sep 23 at UT 22:00 Pickering, based at Arequipa, Peru, and using a 12" reflector, saw in Schroter's Valley and the vicinity "Varitions in vapor column. Drawings. Time estimated from given colongitude)." Cameron 1978 catalog ID=272 and weight=1. ALPO/BAA weight=1.
Heraclides Point 1948 Jul 27 UT 02:00? Observed by Doherty (Stoke-on- Trent, England, 3" refractor? or 6" reflector or 10" reflector) "Strangeley blurred & misty; La Place Prom was perfectly sharp." NASA catalog weight=3 (average). NASA catalog ID #507.
In 1919 Feb 21 at UT 22:00? an unknown English observer observed in Lexell crater an intensely dark line going out from it. The Cameron 1978 catalog ID=370 and weight=1. The ALPO/BAA weight=1.
On 1981 Sep 20 at UT 08:00-09:40 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x342, seeing=excellent) detected the small crater on its western rim But not on the eastern floor. This was odd because both are equal in size, furthermore smaller craters could be seen and the Moon was at a high altitude above the horizon, so seeing not a problem. Cameron 2006 catalog ID=154 and weight=3. ALPO/BAA weight=1.
Aristarchus 1978 Oct 23 UT 06:30-06:34 V.A. Sage (Bristol, UK, 10.25" reflector, x250, Wratten 44a and 25, seeing II) noted that Aristarchus was surrounded by a dark area in the blue filter. They did not regard this as a TLP at the time. However because Aristarchus is surrounded by blue material in real life, this should have been brighter? For this reason, despite the observer regarding this as a negative TLP, an ALPO/BAA weight=1 has been applied.
On 1891 Sep 25 at UT 20:00 Pickering, based at Arequipa, Peru, and using a 12" reflector, saw in Schroter's Valley and the vicinity "Varitions in vapor column. Time estimated from given colongitude)." Cameron 1978 catalog ID=273 and weight=1. ALPO/BAA weight=1.
"Observed early morning Moon, with 60mm OG x120, from 02-20 to 02-45 hrs UT targeting Plato, Aristarchus, and Alphonsus. From 02-20 to 02-30 hrs UT. Aristachus showed a faint pink colouration, where the light material contacted the darker Mare surface. This was not seen after 02- 30 hrs UT." Transparency very good, seeing somewhat unsteady at first, improving later on. The ALPO/BAA weight=2.
Aristarchus and Cobra Head 1968 Jul 18 UT 00:50-01:30 Observed by Moseley & Corvan (Armagh, N.Ireland, 10" refractor, x255) and by Moore (Selsey, England, 3" refractor, x 120) "Distinct red glow & obscur. 1st at 0050 S. of C.H. & same size. At 0052h saw color on S.wall of Aris. Both persisted till 0100h then both (faded, then brightened, then faded. Plato, Gassendi & Kepler checked with neg. results. Obscured areas reached greatest extent at 0125h wgen it was 1/2 size of C.H. & SSE (ast. ?) of it. Moore was alerted to it & saw it in blink, but not vis. at 0107-0220". NASA catalog weight=5. NASA catalog ID 1085. ALPO/BAA weight=4.
On 1971 Jun 16 at UT 07:08-07:09 Raimundo Nonato da Silva (Parnaiba, PI, Brazil, 9.5" reflector, x90, seeing=good) observed during a lunar eclipse that the Straight Wall surroundings were darker than an observation from two days earlier. At 07:09UT tonality became clearer. As dawn was in progress and atmospheric turbulence, not sure if it was a TLP? Other features were normal. The Cameron 1978 catalog ID=1297 and weight=1. The ALPO/BAA weight=1.
Aristarchus 1973 May 27 UTC 01:09-01:56 Observed by Theiss (51N, 9.67E, 75mm reflector) "3 diameters of Aristarchus around its center: orange bright area from 01:09-01:56" Ref: Hilbrecht & Kuveler, Moon & Planets Vol 30 (1984) p53-61"
On 1966 Sep 09 at UT 21:00-21:30 Cave (England, UK, 6" reflector, x364, S=F) observed that the flor of Wargentin was a very dark gray, two shades darker (on scale of 1-10) than the floor of Nasmyth and nothing to be seen on it even along the ridge. A drawing was made. The Cameron 1978 catalog ID=976 and weight=3. The ALPO/BAA weight=2.
Near Gassendi 2003 Aug 23 UT 09:00 Observed by Weeks (USA, 88deg 33' W, 22deg 33' N, 20cm reflector) "Observation period ~30 min, terminator straight down middle of Gassendi, very bright spot seen glaring on the dark side ~2-3 Gassendi diameters away (SW or NW?). Intense glare unlike anything seen on Moon before. Spot did not brighten or fade. The ALPO/BAA weight=2.
Mercurius E (76E, 48N) 2004 Aug 11 UT 18:28:27 Takamura_Y (Ogawamura Observatory, 137:59:13E, 36:39:34N) observed a 9th magnitude impact flash. This was verified by 2 other observers elsewhere in Japan. The ALPO/BAA weight=1.