1864 May 15-16 UT 23:00-01:00? East of Picard (probably Curtis Observed by Ingall (Camberwell, England?) "Remarkable bright spot" NASA catalog weight=3 (average). NASA catalog ID #134. ALPO/BAA weight=3.
Piton 1958 Sep 23 UT 00:00? Observed by Moore? (UK?) "Enveloped in an obscuring cloud-like mist" NASA catalog ID 697. NASA catalog weight=2. ALPO/BAA weight=2.
Ross D 1965 Dec 04 UT 04:25 Observed by Cross (Whittier, CA, USA, 19" reflector, x155, seeing 4+) "Obscuration of part of the rim, also bright area 7-10km diam. Not seen on following nite." NASA catalog weight=4 (good). NASA catalog ID #917. ALPO/BAA weight=3
Sinus Iridum 1996 Apr 28 UT 20:00 Observed by Brook (Plymouth, UK, 60mm refractor, x112, seeing III, slight breeze, twilight) "dark shaded area on floor ~1/4 diameter of Sinus Iridum on western interior by rim" BAA Lunar Section Observation. ALPO/BAA weight=1.
Bulialdus 1979 Aug 03 UT 21:36-21:48 Observed by Cook (Frimley, UK, seeing III, Moonblink device) "Bullialdus eastern side of the crater looked brighter in red i.e. rim and exterior, extending to the south slightly and this reddish areas was slightly hazy. At 21:41 it clouded over but at 21:47-21:48 it cleared briefly and effect was noted again. Also Darney appeared very visible through the red filter. Probably spurious colour as the Moon was -18 deg in declination and the whole Moon had a slight brownish tinge" ALPO/BAA weight=1.
Darney observed by Cook (Frimley, UK, seeing III, Moonblink device) See TLP report for Bullialdus (eastern side) concerning reddish areas. At 21:41 it clouded over but at 21:47-21:48 it cleared briefly and the effect was noted on Bulialdus again. Also Darney appeared very visible through the red filter. Probably both effects were spurious colour related as the Moon was -18 deg in declination and the whole Moon had a slight brownish tinge. An ALPO/BAA weight of 1 is assigned to this TLP."
W. of Mare Humorum (50W, 25S) UTC 00:00? Observed by Mac Farline (England?) "Bright Point" NASA catalog weight=2 (low). NASA catalog ID 719.
In 1820 Oct 17 at UT 20:00 an unkown observer reported in Mare Imbrium, south of Sinus Iridum (30W, 40N) some brilliant spots. The Cameron 1978 catalog ID=80 and weight=1. The ALPO/BAA weight=1.
On 1989 Sep 12 at UT00:58-02:25 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x159, S=7/10) observed similar light conditions to 1989 Jul 15. At 02:00 he observed pink on the south west wall of Aristarchus crater. At 01:24UT the Aristarchus ray was yellowish, however the entire Moon had a grey-yellow tinge of colour. Chromatic aberation was observed at 01:56UT. By comparison Gassendi was checked and had no colour. At 02:10 the crater wall of Aristarchus was unusual and was quite different in appearance to rims of other craters. The cameron 2006 catalog ID=375 and the weight=1. The ALPO/BAA weight=1.
Gassendi 1967 Mar 22 UTC 19:39-19:43 Observed by Mosely (Armagh, N. Ireland, 10" refractor, x360) "Red color & blink strongly suspected in small area centred on junction of 3 clefts 1/2 way from c.p. & ESE wall. Well-defined & did not note change during obs. period. Clouds terminated obs. till 2120 when it was not seen." NASA catalog weight=3 (average). NASA catalog ID #1018.
G. Ward (a lunar observer for 15 years) observed an area just south west of Mersenius C to be blurred and in a greenish cloud. The green colour was more like that of dead grass than one gets from a neon bulb. The effect was seen from 04:50-04:57UT, but could have been going on before it was first noted at 04:50-UT. Seeing was 6-7/10 4" Refractor (2 element). refractor had been used hundreds of hours before (over a 10 year period) with no similar colour was seen. The observer checked other areas but did not see any similar effects. They also rotated and changed eyepieces, but this made no difference to the TLP. The TLP site seen was picked up on an image taken earlier at 04:47UT by W. Bailley, from Sewell, NJ, USA. Unfortunately the area concerned, a mountain on the image, was saturated and so we cannot tell if a colour was present there and the seeing was poor.
Aristarchus 1975 Oct 16 UT 20:00? Observed by Foley (Kent, England, 12" reflector) "Deep blue-viol. spot in NW (IAU?) interior corner." NASA catalog weight=3. NASA catalog ID # 1413. ALPO/BAA weight=1.
Aristarchus 1971 Sep 01 UT 20:45-21:05 Observed by Neville, Cunnington (Nottingham, UK, 4" refractor x180, altitude, low) "Saw a bright glow, especially in E. wall (Confirm. but not indep.?)" NASA catalog weight=3. NASA catalog ID #1310. ALPO/BAA weight=1.
Deslandre - 1965 May 12 at UT 19:10 E. Penzel (Rodewisch, East Germany) was taking a sequence of images during the impact of the Soviet Lunik 5 (upper stage of the carier rocket?). He detected a tens of km scale elongated cloud after the impact over a duration of 9.5 minutes. This was near to Deslandre crater. However there are differences between the images elsewhere on the Moon, possibly due to different exposures or some other effects and it is not 100% sure that what he detected was impact debris/cloud?. The ALPO/BAA weight=1.
On 1933 Oct 01 at UT 03:00 Rawstron (USA, 4" refractor, x330) observed the following in Mons Pico B: "Haze -- much narrower & elongated than on Sep. 1". The Cameron 1978 catalog ID=407 and weight=3. The ALPO/BAA weight=2.
Observed by Haas (Las Cruces, NM, USA) "Temporary greyness seen in interior shadow." ALPO/BAA weight=3.
On 1955 Oct 28 at UT00:00? Kozyrev (Crimea, Soviet Union, 50" reflector) detected in Aristarchus Fraunhofer lines in UV spectra that were much narrower than in the solar spectrum. This indicated luminescent glow which overlapped contour(?) lines. Greatest after Full Moon, but fluctuated monthly with no indication of solar activity effect. The Cameron 1978 catalog ID=621 and the weight=5. The ALPO/BAA weight=5.
On 2003 May 13 at UT06:40-07:26 W. Haas (Las Cruces, NM, USA, 12.5" reflector, x321 and x202, S=2, T=3.5) suspected (06:40-06:55UT) that he saw an oval bright feature (intensity 5.5) near the centre of the floor of Herodotus crater indenting into the shadow - however the seeing was none too good, so it is more of a suspicion than a definite sighting. At 07:14-07:26UT he re-examined the region (x202 and x321, S=1-2 and T= 3.5) and had better glimpses that conformed his initial suspicions of there being an oval indentation bright spot (now intensity 6) into the shadow in the centre of the floor. Of course Herodotus does not have a central peak! There was also a very bright spot on the NW> sunlit rim of Herodotus crater. The ALPO/BAA weight=2.
On 1955 Oct 28 at UT 00:06 W. Taylor saw a naked eye flash on the Moon in the north east area, on the edge of Mare Vaporum. The flash was intense and radiated to a large area. The duration was 1/4 seconds.
Aristarchus-Herodotus 1971 Sep 02 UTC 20:00 Observed by Ayeau (Paris, France, 12" reflector, x100) "Brownish-red or maroon seen on Aris. W.wall ridge to Herod. on S.wall of Herodotus" NASA catalog weight=2. NASA catalog ID #1311. ALPO/BAA weight=2.
Aristarchus. 2024 Mar 22 UT 22:08. G.Vega (Argentina, Oro Verde - 20cm f/5 Newtonian on an EQ5 Goto mount - two colour cameras used: a Player One Ceres C & a Nikon D5100). Colour images show a region of blueness from the W. rim of Aristarchus and the NE of Herodotus (maybe also on the inner SE rim of Herodotus?) i.e. generally SE of the Cobra's Head. Blue colour is usually present on the rim of Aristarchus and to the north - but I don't recall seeing such strong blue colouration in this region before? No other craters exhibit this blue colour. As the colour is present in two images, taken with different cameras it looks genuine. Two other colour images, at lower resolution, were taken from Oro Verde, by W.Elias, at 23:06 and 23:18, but neither of these exhibit this blue colour - but that maybe a resolution issue? ALPO/BAA weight=3.0
Rays of(?) (in?) Herodotus 1955 Oct 28 UTC 18:30 Observed by Kozyrev (Crimea, Russia, 50" reflector, spectragraph) "Spectrum 3934A (K of Ca). 3964 (H of Ca) change in luminosity. 13% in H, 19% in K, 2% in H, 3% in K. in photo-line-depth method" NASA catalog weight=5 (very high). NASA catalog ID #622. ALPO/BAA weight=5.
Mersenius 1975 Jun 21 UT 21:50-22:45 Observed by McConnell (Northern Ireland, 6" reflector) Moore? (Sussex, Enland, 15" reflector, 5" refractor, S=F), Reading (Rushden, England, ? 14" reflector) and Foley (Kent, England, 12" reflector, S=P) "McConnell saw an obscur. starting at 2150h which disappeared at 2245h. Moore(?) alreted, saw no anomaly in 15 in refl. & 5-in refr. under fair conditions from 2209-2228h. Reading reported neg. fr. 2250-2345h (after phenom.). Foley reported color in it but also a crater to S. of it & Aris., prob. due to seeing conditions." NASA catalog weight=5. NASA catalog ID#1408. ALPO/BAA weight=3.
On 1995 October 6 at UT 21:30 R. Lena (Rome, Italy - a UAI observer, 11.4cm reflector) saw 4 or 5 flashes from Herodotus crater. Light intensities (mag?) ranged from 9 to 8 and they were brighter through a red filter. There is no 2006 Cameron catalog entry for this observation - it has come from the UAI web site. The ALPO/BAA weight=3.
1954 Aug 11 observed by Firsoff (Somerset, UK, 6.5" reflector, x200) "Brilliant in red filter, variable)" NASA catalog weight=4. NASA catalog ID #570. ALPO/BAA weight=3.
On 1995 Oct 06/07 at UT 22:45-00:00 P. Mirteto (a UAI observer, RI, Italy, 20cm reflector) observed some brightness changes in Herodotus. Please note that this description is a summary of the material on the UAI web site. The ALPO/BAA weight=2.
On 1995 Oct 06/07 at UT 23:05-00:00 P. Mirteto (a UAI observer, RI, Italy, 20cm reflector) observed some brightness changes in Prinz. Please note that this description is a summary of the material on the UAI web site. The ALPO/BAA weight=2.
On 1988 Sep 23 at 19:40-19:55 & 20:36-20:41 G. North (760mm Coude Rrefractor, x250, Royal Grenwwich Observatory, Herstmonceux, UK, seeing V, Transparency: Fair). 19:40-19:55 image very unsteady. All seems normal in other crtaters with the exception of Arcimedes. Much of the rim seems indistinct apart from a 1/4 length of the west rim. Strongly suspected that this was due to a combination of seeing and illumination. UT 20:02-20:06 - checked the area with a lower magnification 10" Astrographic Refractor - the crater seems more normal, so suggesting that the theory was correct. 20:36-20:41 returned to the 30" reflector, and the crater appeared similar to the start of the session. This is almost certainly not a TLP, but it would be helpful to have some images or sketches to check this theory out. Weight=1.
On 1985 May 02 at UT 20:20-20:38 J.D. Cook (Frimley, UK) noted at 20:20 found the south rim (and just outside) to be blurred in appearence and there was also a hazy shadow inside the crater. M.C. Cook found a "break in clarity in break on S wall". Miles (UK) also found the south wall blurred in appearance and Foley (Kent, UK) noted that the area was featureless and the 2 craters positions at 1 o'clock high up on the inner wall were obscured", although just north of these was sharp detail. Foley also recorded that the shadow on the east wall was opaque"and that thye inside of Aristarchus was slate/blue in colour and dull, however by 20:28 the crater had brightened by 0.4 steps on Foley's CED device and the missing craterlets were visible again. Jean (Canada, 4" refractor) observed a rose colour intermittently (UT 1948- 20:58) - however Cameron suspects that this is chromatic aberation. The Cameron 2006 catalog ID=269 and the weight=5. The ALPO/BAA weight=3.
On 1987 Mar 13 at UT02:00-03:00 De Groof (Belgium, 8" reflector x150, seeing=clear) noted that the north west part of Aristarchus had a blood red shimmering filling the whole crater. A video by Mobberley some 18 hours later, shows variation in Aristarchus. Cameron 2006 catalog ID= 301 and weight=5. ALPO/BAA weight=3.
On 1977 May 30 at 21:04-02:13UT J.H.-Robinson noted a loss of detail inside Gassendi, however he did not regard this as a TLP. The effect was also seen by P.W. Foley. Cameron 2006 extension catalog TLP ID=16 and weight=0 ALPO/BAA weight=1.
Amery (Reading, England) saw blue in Aristarchus but a photograph did not show the colour. Foley thinks this was spurious colour. Cameron 2006 extension catalog ID=27. ALPO/BAA weight=1.
Promotorium Laplace: 1978 Apr 20 UT19:30-22:35 Peter Foley observed a tiny yellow-brown region close the tip of the cape, north east of the precipitous west edge, in the face of the north facing slope. The area concerned was diffuse and varied in density despite the surroundings not varying. Foley notcied no colour elsewhere on the Moon, though Amery thought that he saw some in Aristarchus, but Foley thinks this was spurious. Cameron 2006 catalog extension ID=27 and weight=5. ALPO/BAA weight=3.
On 1983 Dec 17 at UT 17:25-19:20 Moseley (Covington, England, UK, x120 and x240, seeing=III and spurious colour present) found that the inside of Aristarchus crater was dull and slightly blue. Suspected the colour to be spurious: at 19:20 at x240 the colour was pink but at x120 there was no colour. Cameron 2006 catalof ID=234 and weight=3. ALPO/BAA weight=2.
Vallis Schroteri 1991 Aug 23 UT 02:19-02:49. Flashing spot at end of SV fluctuated. Herzog, Darling & Weier confirmed spot but not fluctuation. Spot brighter in red than blue, but Cobra Head was bright in blue. No other region was abnormal.
Aristarchus and Herodotus UT 20:00? Observed by Areau (Paris, France, 12" reflector x100) "Maroon color covering the ridge(?) E (ast. ?) & the ridge(?) S. of Herod. In 3 or 5 secs. Cloud disappeared after 10 min." NASA catalog weight=3 (average) NASA catalog ID #1312.
Godin UT 02:15-03:05 Observed by Porter (Narragansett, Rhode Island, USA, 6" refletor, 45, 90x, S=P?, T=2) "Albedo change in some pts. yellow-orange color on rim. Wondered if it were atmos. LTP albedo= 7,7,7,6.5. Normal albedos=7,7.5,6.5,6.5 for same pts. Nearby plain albedos =6. LTP from 0250-0300h. Intensity normal at first;pts in W. decreased & N.pt increased. No difference in intensity in red filter till suddenly it jumped out & became vis. above the high background albedo. Sketch. He thinks it was atm. seeing" NASA catalog weight=2 (low). NASA catalog ID #1370.
Aristarchus 1975 Oct 18 UTC 20:00? Observed by Foley (Kent, England, 12" reflector) "Deep blue-viol. spot in NW (IAU?) interior corner." NASA catalog weight=3 (average). NASA catalog ID #1415.
On 1973 Dec 8 UT18:15-18:20 R.Billington (UK, 2" refractor) reported that ristarchus was orange. However 15 minutes earlier, another observer, Livesey made a sketch and did not report any colour. ALPO/BAA weight=1.
On 1979 Aug 06 at 22:24-22:54 P.Madej (Hudersfield, UK, 6" reflector. Purple Wratten 35, and Yellow Wratten 15 filters used) Orange glow seen (at x73) on west side of crater, near the central peak. The central peak was coloured too at x110. At 22:32 (x75) the central peak was brighter than the rest of the area wrough the yellow filter. At 22:34UT at x73 everything looked OK through the purple filter. The TLP was still visible at 22:54. ALPO/BAA weight=1.
Schroter's Valley 1955 Jul 03 UT 22:00 Observed by Firsoff (Somerset, England, 6.5" reflector x200) "Drawing contains a star-like pt. at N. part of valley." NASA catalog weight=4. NASA catalog ID #597. ALPO/BAA weight=1.
Gassendi 1973 Dec 08 UT 20:20-20:22 observed by J-H Robinson (Devon, UK, seeing dair to poor). Suspected blink detected - might have been due to atmospheric condtions?. ALPO/BAA weight=1.
Plato 1971 Jan 10 UTC 20:17-20:42 Observed by Taylor (Slough, England, 8.5" reflector) "Blink (dark gray to black), 13x3km diam. on E. wall & floor in indentation in wall. Smaller by 2028 h. gone at 2035h. Reappeared at 2028h & gone completely at 2042h)." NASA catalog weight=3 (average). NASA catalog ID #1282.
Schickard 1940 May 20 UT 20:00 Observed by Moore (England, 12?" eflector) "Fog on floor -- milky appearance, less pronounced than on 8/2/39 (see #456)." NASA catalog ID #465. NASA catalog weight=4. ALPO/BAA weight=2.
The area west of Helicon not visible despite the area being fairly bright at Full Moon time. This area was a very bright patch one night. Cameron notes: comensurability of Full Moon & Perigee. Cameron 2006 catalog extension ID=64 and weight=3. Seeing=7 and transparency=4. 2.4" refractor used. ALPO/BAA weight=1.
Moretus? 1871 Dec 25 UTC 22:00? Observed by Webb? (England?, 9" reflector?) "Internal twilight in crater #132- a large circular crater nr. S.pole (crater #132 on Goodacre's map is Plato. Webb's map?)" NASA catalog weight=3 (average). NASA catalog ID #173.
Madler 1940 Aug 17 UT 06:45 (Cameron gives 07:30 but Haas says this is wrong) Observed by Haas (New Mexico?, USA, 12" reflector?) Bright spot on S. rim had I=5.8 on this date but 8.9 on Aug. 17, when observing conditions were similar (see # 473). NASA catalog weight=4. NASA catalog ID #470. ALPO/BAA weight=3.
Plato 1937 Jul 22 UT 06:20 Observed by Haas (Alliance, Ohio, USA, 12" reflector?) "Floor distinctly greenish, but was gray on June 23, 1937 at 0430 & col.84 (normal?)" NASA catalog weight=4 (high). NASA catalog ID #421. ALPO/BAA weight=3.
On 1982 Jun 05 at 22:00? UT, Chapman (UK, using a 12" reflector), again using a x2 yellow filter, noticed that the central craterlet detectabilty changed such that sometimes it was visible and sometimes not. Foley (Kent, UK)noticed that the central craterlet could only just be seen between June 2 to June 5 and was much less discernable than during the previous lunation. No CED brightness measurements made. The floor of Plato was noted to be very dark though. Cameron 2006 catalog ID=172 and weight=4. ALPO/BAA weight=2.
On 2000 Jun 16 UT 20:37 C. Brook (Plymouth, UK, 60mm refractor, x117 & x40, seeing good, transparency excellent) observed abright spot on the north rim of Mare Crisium (57E, 25N). It was comparable to the illuminated rim of Proclus in brightness. No colour seen. The spot was not visible the next night. The ALPO/BAA weight=1.
Archimedes 1940 Aug 18 UT 03:25 Observed by Haas (NM?, USA, 12" reflector?) NE outer wall had I=5.0, but was I=2.5 on June 20 (see #467) (similar colong.)" NASA catalog weight=4. NASA catalog ID #471. ALPO/BAA weight=2.
Proclus 1972 Nov 20 UT 20:20 Observed by Farrant (Cambridge, England, 8.5" reflector, x178) "Dark patch in crater. Disappeared by next nite. The normal ring seemed thickened. On Dec. 7. the crater appeared bright. Drawings. (prob. real LTP, nr. FM)" NASA catalog weight=3 (average). NASA catalog ID #1350.
Lichtenberg 1951 Jan 22 18:19.2-18:38.5 UT observed by Baum (Chester, England). Tiny red spot noticed initially and then faded. Location of spot 31.403N 66.167W. 20cm refractor x90- x100. Seeing fair-extremely good. NASA catalog assigns a weight of 3. NASA TLP ID No. #542. ALPO/BAA weight=3.
Aristarchus 1956 Nov 17/18 UT 23:30-00:30 Observed by Argentiere et al. (Itatiba City, Brazil, 20, 10 and 6 cm reflectors) Crater may have been brighter than expected(?) during a lunar eclipse. NASA catalog weight=3. NASA catalog ID #658. ALPO/BAA weight=1.
Byrgius 1956 Nov 17/18 UT 23:30-00:30 Observed by Argentiere et al. (Itatiba City, Brazil, 20, 10 and 6 cm reflectors) Crater may have been brighter than expected(?) during a lunar eclipse. NASA catalog weight=3. NASA catalog ID #658. ALPO/BAA weight=1.
Kepler 1956 Nov 17/18 UT 23:30-00:30 Observed by Argentiere et al. (France?) "Crater was extra-ordinarily bright". NASA catalog weight=3 and catalog ID #658. ALPO/BAA weight=2.
Manilius 1956 Nov 17/18 UT 23:30-00:30 Observed by Argentiere et al. (Itatiba City, Brazil, 20, 10 and 6 cm reflectors) Crater may have been brighter than expected(?) during a lunar eclipse. NASA catalog weight=3. NASA catalog ID #658. ALPO/BAA weight=1.
Proclus 1956 Nov 17/18 UT 23:30-00:30 Observed by Argentiere et al. (Itatiba City, Brazil, 20, 10 and 6 cm reflectors) Crater may have been brighter than expected(?) during a lunar eclipse. NASA catalog weight=3. NASA catalog ID #658. ALPO/BAA weight=1.
Tycho 1956 Nov 17/18 UTC 23:30-00:30 Observed by Argentiere et al. (France?) "Crater was extra-ordinarily bright". NASA catalog weight=3 (average). NASA catalog ID #658.
On 1919 Nov 27 at UT 23:00-01:00 Fock (Germany) observed in the vicinity of Tycho, during an eclipse (mid eclipse at 23:56UT) a long ray in the direction of Longomontanus that remained visible. It was glowing in weak gray-green colour for the whole of the eclipse. The Cameron 1978 catalog ID=373 and weight=2. The ALPO/BAA weight=1.
Aristarchus 1973 Feb 15 UTC 17:07-19:31 Observed by Theiss (located at 51N 5.67E) "area 4-5 diameters of Aristarchus were coloured clearly yellow-red" 120mm reflector used. Ref Hilbrecht & Kuveler (1984) Moon and Planets Vol 30 p53-61. ALPO/BAA weight=1.
Kepler 1962 Jul 17 UTC 06:24,08:36 Observed by Wildey, Pohn (Mt Wilson, CA, USA, 60" reflector+photometer) "Crater was at Vmag 2.68 at earlier obs. which was .47 mag brighter than av. mag. at 15d & it faded to near normal at later time to V=3.10(photom. measures), a change of 1/2 mag. or @1.5 times in brightness" NASA catalog weight=5 (very good). NASA catalog ID #761.
Plato 1973 Aug 13 UT 22:25-22:35 observed by Pedler (Devon, UK). Observer noticed a slight blink on a lighter patch on the floor just beneath the south(?) rim using Moon blink filters. ALPO/BAA weight=1.
W.Humboldt 1897 Dec 09 UTC 23:00? Observed by Goodacre (Crouch End, England, 12" reflector) "Shadow anomaly. Chocolate penumbral shade edging black shadow on E. wall." NASA catalog weight=3 (average). NASA catalog ID #296.
Cobra Head 1955 Oct 31 UTC 19:00 Observed by Milligan (England?) "Dark blue obscuration" NASA catalog weight=3 (average). NASA catalog ID 624.
Plato 1967 Nov 17 UTC 18:36-18:50 Observed by Moore, Moseley (Armagh, Northern Ireland, 10" refractor x260) "Faint blink under SW wall. Nothing seen vis. Gone by 1839h. Reappeared at 1841, then gone by 1850h. Checks till 0200h were neg. Obs. dubious of reality of phen." NASA catalog weight=2. NASA catalog ID #1054. ALPO/BAA weight=1.
On 1983 Jan 29/30 at UT20:35-01:00 Sykes (UK?) observed that Linne appeared to brighten for approximately 20 min and had the appearance of a point (confirmed). This observation was made during a major Torricelli B TLP. The Cameron 2006 catalog ID=198 and the weight=5. The ALPO/BAA weight=2.
Torricelli B 1983 Jan 29/30 UTC 20:35-02:30 Observed by Foley (12" reflector, seeing Antoniadi II, Transparency=good, no spurious colour seen), Moberley (14" reflector, seeing Antoniadi II, transparency excellent, spurious colour strong), Cook, J & M (12" reflector, seeing Antoniadi II-III, transparency moderate). All observers based in southern England. "Initially crater brightest feature on the Moon, then it faded. Strong colour also seen by all observers e.g. green-blue to violet. Report of observations written up in JBAA Vol 100, No. 3, p117 123, (2000) - probably one of the best reorted TLP". The Cameron 2006 catalog ID=198 and weight=5. The ALPO/BAA weight=5.
On 1983 Jan 29 at UT22:09 M.Mobberley (Sulfolk, UK, 14" reflector) noted that Arago B had a slight tinge of violet colour, and was a lot less (bright?) than Torricelli B's blueness. Other craters checked but were not showing any blue colour. The Cameron 2006 catalog ID=198 and weight=5. The ALPO/BAA weight=3.
On 1983 Jan 29 at UT22:09 M. Mobberley (Suffolk, UK), found that Moltke crater was "exceptionally bright". Other craters (apart from Arago B Torricelli B etc) appeared normal. The Cameron 2006 catalog ID=198 and the weight=5. The ALPO/BAA weight=2.
On 1983 May 28 at UT 01:50-03:00 K. Marshall (Medellin, Columbia) observed the whole region of Aristarchus, Herodotus and Shroter's Valley all to have a brightness of 3 and all blue and impossible to focus on (he had never seen it like this before). Also the interior of Aristarchus was invisible. Brightness measurement taken and a sketch was made. The Cameron 2006 catalog ID=222 and the weight=3. The ALPO/BAA weight=2.
Proclus 1972 Nov 21 UT 21:30 Observed by Farrant (Cambridge, England, 8.5" reflector, x130) "Thickened bright ring remained, but the dark patch had disappeared. (dark patch prob. real temporary phenom. as it was seen nr. FM when contrasts are strongest, yet disappeared" NASA catalog weight=1 (very low). NASA catalog ID #1351.
On 1978 Apr 23 at UT20:35 (Rawlings, UK, finderscope, x50) observed a bright flash (~0.3 sec duration) near to Copernicus (20W, 9N) with rays to the south east whilst he looked through a finder scope. Moore, who studied the drawing, suggests that the area of the flash was near Copernicus. However Cameron says this cannot be the case if the flash was in darkness as mentioned in the BAA Lunar Section circular. She comments that it might have been a meteor? The Cameron 2005 catalog ID=28 and weight=1. The ALPO/BAA weight=1.
Littrow 1915 Jan 31 UTC 22:00? Observer: unknown (England?) "6 to 7 spots arranged like a gamma first seen on this nite. (Kuiper atlas. Rect. 14-c shows spots in form of a 7 or a cap. gamma backwards, but not l.c. gamma)". NASA catalog weight=0 (almost certainly not a TLP). NASA catalog ID #349. ALPO/BAA weight=1.
Proclus 1955 Nov 01 UTC 02:50-03:05 Observed by Bartlett (Baltimore, MD, USA, 3.5" reflector x100, S=6, T=5) "Proc. D normally 5 deg bright was vis. tonite only in blue light, whereas usually is vis. in integrated light. However at col. 110.5 deg it was a dark spot (see # 816) C.p. tonite was normal 5 deg bright but in Oct. lun. was dark". NASA catalog weight=4 (good). NASA catalog ID #625. Note Proclus D does not refer to the crater Proclus D as defined by the IAU, but probably to a spot inside the crater that Bartlett designated D!
Aristarchus 1970 Feb 22 UTC 07:00? Observed by Thomas, Stump, Corral. Obs. (Organ Pass, NM, 24" reflector+Moonblink) "Bluing around crater -- vis. in monitor, but not photographable due to clouds." NASA catalog weight=4 (good). NASA catalog ID #1235.
(Baltimore, MD, USA, 5" reflector x180) "Strong violet glare on E. rim, changing to brown. At 0220 dark viol. in nimbus, at 0235 viol. changed to brown. At 0255 viol. suddenly reappeared, but faded to invis. at 0300. Again at 0308 reapp. Only time he ever saw such color changes." NASA catalog weight=4. NASA catalog ID 583. ALPO/BAA weight=3.
LaLande 1973 Jul 17 UT 03:30-03:45 Observed by Galgoey (Washington, NJ, USA, 2" refractor x46, x117), S=VG, T=5) "Star-like pt., variations, 1- 2s, seen only at 40x, not at higher powers. LTP albedo =10, normal=8, nearby plain =6 (geom, instrum. & atm. & refl. material at site effects?)" NASA catalog weight=1 (very low). NASA catalog ID #1371.
Gassendi 1940 Aug 20 UT 03:25 Observed by Haas (NM?, USA, 12" reflector?) "Largest bright spot on SE pt. of floor had I=8.6 (real changes? see @ '#649, 474, & 475, all similar change)." NASA catalog weight=4. NASA catalog ID #472. ALPO/BAA weight=2.
1824 Dec 08 UTC 00:00? Observed by Gruithuisen (Munich, Germany) "Bright fleck in SE part of crater" NASA catalog weight=4 (good). NASA catalog ID #104. ALPO/BAA weight=2.
Aristarchus 1947 Nov 30 UTC 00:00? Observed by Favarger (France?) "3 bright points on inner w. slopes." NASA catalog weight=2. NASA catalog ID #499. ALPO/BAA weight=1.
On 1983 Jan 30 at UT 23:45 Chapman (England, UK) observed that Censorinus was low in brightness. The Cameron 2006 catalog ID=199 and the weight=4. The ALPO/BAA weight=2.
On 1983 Jan 30 at UT 23:45 P.W. Foley (Kent, UK, 12" reflector) measured that the brightness of the region around Toricelli B was 2.3 (high) and there was a slight blue colour. The Cameron 2006 catalog ID= 199 and the weight=4. The ALPO/BAA weight=2.
Plato 1870 Feb 18 UTC 00:00? Observed by Gledhill (Halifax, England, 9" refractor) "Illum. of another group of craters different from group in Aug. & Sep. obs. (date is F18 if phase is similar to Ap 1870) NASA catalog weight=2 (low). NASA catalog ID #164.
Mare Crisium 1962 Jul 19 UTC 07:30 Observed by Wildey & Pohn (Mt Wilson, CA, USA, 60" reflector + Photometer) "Photometric meas. showed change in brightness from Vmag=3.46 to V=3.07, where av. mag. for that age=3.26, or a brightening of .58 mag." NASA catalog weight=5 (very high). NASA catalog ID #763.
Plato 1938 Jun 15 UTC 08:00 Observed by Haas? (New Mexico?, 12?" reflector) "NW. end of floor had intensity I=2.0, but on 7/15/38, I= 3.7, conditions similar." NASA catalog weight=4 (high). NASA catalog ID #439.
On 1965 May 18 at UT 03:00-03:30 Cragg (Mt Wilson?, CA, USA, 6" refractor?) observed a TLP (no feature nor description given in the Cameron 1978 catalog) on the Moon. The Cameron 1978 catalog ID=877 and weight=4. The ALPO/BAA weight=1.
Mare Crisium 1962 Jul 19 UTC 09:48 Observed by Wildey & Pohn (Mt Wilson, CA, USA, 60" reflector + Photometer) "Photometric meas. showed change in brightness from Vmag=3.46 to V=3.07, where av. mag. for that age=3.26, or a brightening of .58 mag." NASA catalog weight=5 (very high). NASA catalog ID #763.
Area of darkness overlapping NW rim. It was visible through this area of obscuration. Sketch. Cameron 2006 extended catalog ID=376 and Cameron weight=3. ALPO/BAA weight=2.
Messier & A 1972 Aug 27 UT 08:51-09:21 Observed by Hansen (LeMoore, CA, USA, 6" reflector, x200) "Perculiar thread of shadow connecting the 2 craters. Sun's elev. @ 6deg. Drawing (possibly a high peak on E.wall of A casting a shadow?)" NASA catalog weight=1 (very low). NASA catalog ID #1342.
On 1944 Mar 12 at UT 23:00 H.P. Wilkins (Kent, UK, 8.5" reflector) observed that Plato appeared incomplete - the central crater had it's north wall obscured. cameron comments that maybe this was due to the low altitude of the Moon? The Cameron 1978 catalog ID=491 and the weight=4. The ALPO/BAA weight=2.
Darling, alerted by Keyes saw Aris >> brighter obj on moon (as it normally is) Comet ray & N rim of Herod. >> could see no detail - Aris. except two bands, moon was pale yellow (low alt.) with halo around it. Nothing unusual elsewhere. Cameron 2006 catalog extension ID #384 and weight=0. ALPO/BAA weight=1, just in case there is some merit in this report?
On 1989 Jan 26 at UT 03:45 De Groof (Belgium) noted a white few second long flash from Copernicus crater. The Cameron 2006 catalog ID=347 and weight=3. The ALPO/BAA weight=3.
C.Brook (Plymouth, UK) noticed that the east wall of this crater was brighter than the walls of nearby craters. Cameron comments that Foley says that this is normal and agrees. Cameron 2006 Catalog Extension ID= 433 and weight=1. ALPO/BAA weight=1.
Aristarchus 1969 Sep 30 UT 04:46-05:10 Observed by Maley, Saulietis (Houston, TX, USA, 16" reflector, x130) "Intermittent blue color on SE wall, verified by others. At 0500h, taking 10s to reach max. then slowly disappeared. Gap appeared after 1st event. Drawing." NASA catalog weight=4. NASA catalog ID #1202. ALPO/BAA weight=4.
On 1983 May 31 at UT03:45-04:30 K. Marshall (Medellin, Columbia) noted that the whole area of Aristarchus, Herodotus, and Schroter's valley was both blurred and violet. There was hardly any detail seen inside the crater. Herodotus could hardly be seen either and Schroter's valley was totally unrecognizable. A sketch was supplied. The Cameron 2006 catalog ID=223 and the weight=3.
On 1964 Feb 02 at UT08:30-09:40 G.Reneau and B.Crowe (2.4" refractor, x90)observed Ross D to be double. This was during a time when observers were looking for a Ranger crash plume. The Cameron 1978 catalog ID=799 and weight=1. The ALPO/BAA weight=1.
Something resembling a cigar shaped shiny object seen on S rim - hanging over a smaller crater. It looked like a bright aluminum can in the sun & cast a shadow onto the rim. The length was 8-10 miles long x 1 mile wide at the central point. It appeared tapered to points at both ends. Observer studied it for several hours. S term. ~60-70miles away. Apparently not related to topog. Alt. 8deg. Cameron 2006 Extension catalog weight=3. ALPO/BAA catalog weight=1.
Plinius 1937 Jul 27 UT 04:37 Observed by Haas (Alliance, OH, 12"? reflector) "E. end of c.p. varied in intensity at similar lighting conditions. Intensity was low est on this nite, being at I=5.0. Other nites were: Date Time col. I 6/23/37 0600 84 8.5 7/20/37 0200 58 6.0 7/22/37 0300 78 6.5 9/22/37 0700 114 6.0 9/24/37 0830 142 6.5 10/17/37 0100 59 8.5 10/21/37 0500 109 8.5 NASA catalog weight=4 (good) on this and the nights listed. NASA catalog ID #422. ALPO/BAA weight=3.
Observed by Bartlett (Baltimire, MD, USA, 5" reflector, x150) "N. half of crater hazy & ill-defined". S=5, T=4. NASA catalog weight=4 (good). NASA catalog ID 571.
Alphonsus 1972 Jul 30 UT 00:30-03:30 Observed by Morgan (UK using a reflector) "Orange glow, brighter this nite than last nite. Following nites were cloudy. Aristarchus and Gassendi were negative." NASA catalog weight=3. NASA catalog ID #1338. ALPO/BAA weight=3.
On 1979 Aug 12 at UT07:00-10:35 D. Darling and wife (Sun Prarie, WI, USA, 12.5" reflector, x342, photos, S=9/10) observed a cigar shaped protruberance in Romer crater that cast a 32km long shadow, nestled in a valley rille next to Romer. This was a confirmed observation. The effect persisted intil sunset. The top of the object and two points on the crater rim were reflecting the Sun's rays. "Top of obj. & 2 pts on crater rim reflected suns rays. It was as high as the crater rim whereas the rill wall was not. Took photos. he has studied this area and never saw such a phenom before. Photos did not show it". The Cameron 1978 catalog ID=65 and weight=5. The ALPO/BAA weight=2.
Theophilus 1971 Dec 06 UT 21:35-23:20 Observed by Findlay, Ford, Taylor, Robbie (Dundee, Scotland, 10" reflector x180), Bolger (Chester, England), Fitton (Lancashire, England, 8" reflector). "Red-orange patch on E. (IAU?) floor even without a blink. Others confirmed. Dimmed by 2105h but still seen. Dimmer yet at 2230h & gone at 2300h. Baum saw brownish-red patch at 25.5E, 12.5S. Taylor saw reddish patch SE of crater, fainter at 2220h, gone at 2300h. Fitton saw image very dull,yellow & steady. Filters showed nothing unusual, & nothing seen at 2320h." NASA catalog weight=5. NASA catalog ID #1320. ALPO/BAA weight=3.
Aristarchus 1975 Nov 15 UT 06:34 Observed by Rule (Edinburgh, Scotland, 4" reflector x36) "Blue patch in crater (similar to many of Bartlett's obs.?)" NASA catalog weight=2 (low). NASA catalog ID #1383.
Aristarchus 2004 Dec 02 UT 01:55-02:45 Observed by Brook (Plymouth, England, 60mm OG x120) "Fluctuation in the brightness and definition of A of about 1/4 to 1/2 minute period. Rest of field unaffected. Checked for cloud wih naked eye during fades - negative. Checked for misting and tear salt on eyepiece by shifting A around the field - negative." BAA Lunar Section report.
Aristarchus 2004 Dec 02 UT 03:00 Observed bt Michael Amato (West Haven, CT, USA, 127mm Maksutov, x123) "The brightness variation (as seen by Brook earlier) was very apparent. One thing never seen before by Amato was a thin short bright ray that extended out in the opposite direction as Aristarchus bright ray". The higher the Moon climbed in the sky the more obvious this short thin bright ray became. An ALPO report.
Marcus Price (Camberley, Surrey, UK) noted that Aristarchus was extremely bright. A 6" reflector was used. The Cameron 2006 Catalog ID is #98 and the weight is 1. The ALPO/BAA weight is 1 too.
P.Foley (Nettlestead, UK, 12" reflector) noticed a translucent bluish glow in Earthshine coming from this crater, despite it being close to the nright terminator. Cameron 2006 catalog extension ID=200 and weight=2. ALPO/BAA weight=3.
On 1987 Oct 13 at UT14:00-17:00 J. Moeller (Kirkville, NY, USA, 6" reflector) observe and 10x70 binoculars) noted that Aristarchus was brilliant in the sky and the most striking feature on the lunar surface (2-3x brighter than Tycho). It appeared as a hazy white cloud at first. The effect lasted for 3 hours. The Cameron 2006 catalog ID=309 and the weight=1. The ALPO/BAA weight=1.
On 1997 Jul 25/26 at UT 23:00-00:00 S. Fox (Dundee Tayside, Scotland, UK, 15cm f/5 reflector with x4 Barlow). A series of photographs were taken that show a glow just beyond the terminator, near to Callipus crater. Almost certainly this is lens flare from the Barlow lens. The ALPO/BAA weight=1.
Observations made with a variable polarizer (akin to a crater extinction device) to measure brighness with red and blue filters. Some variability in brightness noted. With the Kodak Wratten 25 and 38A filters there was little or no increase in contrast with the red filter, but with the blue filter there was a great increase in contrast of the brighter areas of the crater - the crater floor and patches of lighter material, especially at the north end. The remaining areas were supressed with the Blue 38A. ALPO/BAA weight=3.
Messier A 1976 Sep 15 UT 21:05 Observed by J.H-Robinson (Teignmouth, UK, 26cm Newtonian, Wratten 25 and 44a filters, x200, seeing very poor). Messier A was fainter than Messier in blue light. ALPO/BAA weight=1.
On 1980 Jul 05 at 03:20UT P.Moore (Selsey, UK, 12?" reflector) found Aristarchus to be "Very brilliant indeed". Cameron 2006 TLP catalog ID=100 and weight=3. ALPO/BAA weight=2.
Alphonsus 1956 Oct 26 UT 12:54 Observed by Alter (Mt Wilson, CA, USA, 60" reflector, S=E) "Photog. thru UV & IR filters. Obscur. of E. 1/2 of floor evident in blue plates -- KodakII-O plate no filter. 2m later Kodak I-N. One pair of plates best he'd ever seen. Similar obscuration seen 2X on Linne (this started Kozyrev on his spectrographic program.)." NASA catalog weight=5 (very high). NASA catalog ID #653.
On 1981 Mar 28 at 01:45-02:45UT M. Mobberley (Suffolk, UK, using a 14" reflector) noted that Aristarchus was very bright, but everything else was normal. The Cameron 2006 catalog extension ID=127 and the weight=3. ALPO/BAA weight=1.
Tycho 1990 Dec 10 UT 11:03-12:49 Observed by Darling (Sun Prairie, WI, USA, 12.5" Newtonian, x63) "Nebulous patch seen where the central peak should have been in the 90% shadow filled crater. The nebulous patch is seen to vary in size and a star-like point is seen inside it briefly for 1 sec. The nebulous patch was a bit like what one expects from a close-up view of a cometry nucleus. A sketch and an image can be found on the following web site: http://www.ltpresearch.org/ltpreports/ltp19901210.htm " An ALPO report.
Spitzenberg Mountains 1980 Jul 06 UT 02:05-02:26 Observed by Madj (Newsome, Huddersfield, UK, 70mm OG, Seeing started as I and ended up as IV) "Obscuration seen near Spitzenberg Mountains" BAA Lunar Section Report.
Grimaldi 1972 Aug 02 UT 23:42 Observed by Taylor, Findlay, Ford (Dundee, Scotland, 10" refractor, x180, filters) "Blink in crater, slight but definite on W. wall. Appeared bright without filters. Confirmed by Findlay & Ford. Aris., Gass. & prom. Heraclides were normal." NASA catalog weight=5. NASA catalog ID #1339. ALPO/BAA weight=4.
Aristarchus 1955 Jul 13 UTC 02:50 Observed by Firsoff (Somerset, England) "Brilliant in blue & green filters. Didn't seem to be as clear as other craters." NASA catalog weight=4 (good). NASA catalog ID #598.
Copernicus 1996 Sep 06 UT 01:45 Observed by C Brook (Plymouth, UK, 60mm refractor x28, x112, transparency, not good) "Shadows of central mountains could not be seen although the shadows on the crater ramparts were visible" BAA Lunar Section report. ALPO/BAA weight=2.
UT 08:30 or UT 20:30? SW inner wall of Aristarchus was intesnsity I=0.5, but was I=2.5 on July 2 at Col. 195. Observing conditions were identical. Band is darkening near col. 180. (Observation made in daylight?). Cameron 1978 NASA catalog ID=425 and weight=4 (very experienced observer). ALPO/BAA weight=1.
Tycho 1991 Sep 02 UT 07:34-08:40 Observed by Darling (Sun Praire, WI, USA, 12.5" f/5 Newtonian, 159-248x with red and green filters) "Central peak appeared initially star-like with occasional glimpses of a nebulous patch. At 07:54 an arch of light seen inside the crater. Various starlike or blurriness states seen to the central peak. The luminescence seen was brighter in the red filter than in the blue." An ALPO report - for further details see: http://www.ltpresearch.org/ltpreports/ltp19910902.htm
Aristarchus 1973 Aug 22 UT 00:22-00:23 Observed by Germann (Observer at 47.3N, 8.9E, 200mm reflector, S=2, T=2) "Well Observed bright point disappeared within a minute". - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
Riccioli 1937 Sep 29 UT 09:10 Observed by Haas (Alliance, OH USA, 12?" reflector) "Vivid deep purple (Deep purple color on the previous day), but on July 2, 1937 at col. 195deg it was gray tinged with brownish purple. Obs. conditions similar on all." NASA catalog weight=4. NASA catalog ID #426. ALPO/BAA weight=3.
Riccioli 1937 Sep 29 UT 09:10 Observed by Haas (Alliance, OH USA, 12?" reflector) "Vivid deep purple (Deep purple color on the previous day), but on July 2, 1937 at col. 195deg it was gray tinged with brownish purple. Pbs. conditions similar on all." NASA catalog weight=4 (high). NASA catalog ID #426. ALPO/BAA weight=3.
Herodotus 1955 Jul 15 UT 03:50 Observer by Firsoff (Somerset, England, 6.5" reflector?) "Shadow from apparent c.p. (Orbiter photos don't show it but Apollo 16 oblique shows a very low hill or hills, but slope is < 2.5deg" NASA catalog weight=4 (high). NASA catalog ID #599. ALPO/BAA weight=3.
On 1987 Oct 17 at UT17:00-18:00 (in daylight) J. Moeller (Kerkville, NY, USA, 6" reflector, x80-x135) observed that Aristarchus had a long trench-like feature going off to the north west limb. On the 18th this feature was more cloud like, "bright white and opaque. (Trench = Schrotes Valley? Similar to 10/13/67)". The Cameron 2006 catalof ID=311 and the weight=1. The ALPO/BAA weight=1.
On 1983 Feb 08 at 06:30UT Toricelli B was observed by P.W. Foley (Kent, UK, 12" reflector) to be visible in Earthshine as a luminous patch. This was rather odd because it is only a small crater and not normally bright. The Cameron 2006 catalog extension ID=201 and the weight=2. The ALPO/BAA weight=2.
On 1969 Feb 12 at UT 12:00 Taboada (Mexico, seeing=excellent) found that the Aristarchus region had the same characteristics as the previous days, perhaps a little darker colour brown, but more remarkable. He used red, blue and green filters and a difference in colour was noticed in and out of the region. Cameron suspects that permanent colour was being seen? The cameron 1978 catalog ID=1116 and weight=3. The ALPO/BAA weigh=2.
Plato 1872 Mar 15 UT 20:00? Observed by Webb? (England?, 9" reflector?) "Internal twilight in crater, same remarks as in # 173 -- could 8. be misprint in #173? Schmidt 2X saw cavity of Boussingalt feebly illum. at sunrise as tho filled with mist."NASA catalog weight=3. NASA catalog ID #177.ALPO/BAA weight=1.
Kant 1873 Jan 04 UT 23:00? Observed by Trouvelot (Cambridge, Mass, 8" refractor) "Luminous puplish vapors" NASA catalog weight=3 (average). NASA catalog ID #180.
On 1981 May 10 at UT02:16-03:12 B. Hobdell (St Peterburg, FL, USA, 2?" refractor, the Moon was at a very low altitude) found that the NNW wall of Aristarchus increased in brightness and extended to an arc of the east wall. There were bright flashes in roughly 2 minute intervals. There were also two yellow spots at 5 and 8 o'clock on the east wall. At 02:44UT a bright yellow flash was seen on the NNW rim and by 02:49UT the complete crater was very bright, inparticular on the western wall. Further bright flashes were seen at 02:52UT and at 03:11UT many bright blue points were seen. Finally an obsecuration was seen at 03:12UT. The observer checked for spurious colour but none was seen. The Cameron 2006 catalog ID=137 and weight=0. The ALPO/BAA weight=1.
On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that the southern Mare Crisium appeared to be obscured by a pale grey haze. Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.
On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that Toricelli B was steel blue in colour and this spread 10-15 miles outside the crater. This was odd because Torricelli B was only 6 miles in size. Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.
On 1994 Jun 14 UT 21:45-22:00 G.Rogers (Crendon, UK, 3" Zeiss refractor, sky conditions perfectly clear) reported seeing three very large whitish clouds against the Moon. The strongest seemed to "stem" from the vicinity of Santbech crater (crater identified the next day from an atlas), and was a milk chocolate colour near the stem. The other two large clouds were to the north - in the general area of Mare Fecunditatis and Mare Crisium though perhaps slightly further west and in contact with the terminator? The effect was confirmed (independently) by 4 other observers using the same telescope. The telescope was moved but the clouds remained in the same position over the Moon. This report comes from The Astronomer Jan 2013 p 230. ALPO/BAA weight=1.
SE of Ross D 1964 Feb 19 UT 03:00 Observed by Bender (Whittier, CA, USA, 19?" reflector) "Variations in the ring" NASA catalog weight=1. NASA catalog ID #800. ALPO/BAA weight=1.
Menelaus 1976 Sep 01 UT 00:40 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector, 45-300x) "Upper 1/2 of W.wall bright white (8deg). Lower 1/2 much duller at 4 deg & distinctly bluish-gray. Same as seen in Aris. & Grimaldi & thinks it is due local agency (gas?)." NASA catalog weight=4 (high). NASA catalog ID #1447.
On 1987 Nov 27 at 20:56-21:12 UT M.C. Cook (Frimley, UK, seeing IV-V) saw spurious colour on the Proclus floor and also on the rim. At 20:56UT Censorinus was quite dull and diffuse, spurious colour but no blink. Sketches made. Cameron 1978 catalog ID=314 and weight=5. The ALPO/BAA weight, in view of the poor observing conditions is 2.
On 1987 Nov 27 at 19:35-21:04 UT M.C. Cook (Frimley, UK, seeing IV-V) saw spurious colour on the crater floor and also on the rim. Two bright spots were seen on the west rim (the brightest one was on the NW rim). Saw >>N-NW lip 21:00UT blink in red. The was apparently confirmed by A.C. Cook (according to Cameron) at 21:04UT. The ALPO/BAA weight, in view of the poor observing conditions is 1.
On 1983 Apr 19 at 21:45UT M.C. Cook (Frimley, UK) reported that Censorinus' exterior white patch was grayish at this time and there was a "momentary glow outisde the crater to the North West. The Crater Extinction Device brightness measurement for Censorinus was 4.0 whereas Proclus was 4.4. Cook was expecting a lower CED brightness measurement. Foley notes that Censorinus is usually brighter than Proclus. On 1983 Jan 29 Chapman obtained a very high brightness measurement for this spot. The Cameron 2006 catalog extension ID=212 and the weight=3. The ALPO/BAA weight=2.
On 1983 Feb 19 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=1.
Archimedes 1966 Mar 29 UT 21:00 Observed by Hill (England, 24" reflector, x250, S=E) "Brightening of E-W bands across floor. (Obscuration accord. to Moore)" NASA catalog ID #923. NASA catalog weight=3. ALPO/BAA weight=1.
On 1987 Nov 28 M. Cook (Frimley, UK) found Censorinus varied in brightness as measured using CED devices. P. Foley decided that the north was was much brighter than Proclus (beyond the limits of the scale). However both Moore and Mason agreed that the north wall of Proclus was very bright but shimmering around in the bad seeing. They did not see any bright spots either. A.C. Cook (20:18-20:44UT) confirmed that the north wall of Proclus was very bright. Towards the end of the observing period the north wall had faded from this maximum brightness - Cameron suspects that this might have been as a result of an eyepiece misting up. The TLP was also observed by Foley (Maidstone, Kent, UK) and he reported: "Bright spot on north wall, Moon blink reaction". A BAA Lunar Section report with extracts from the 2006 Cameron catalog. Cameron 2006 catalog ID=315 and weight=4 (or 5?). ALPO/BAA weight=2. Apart from Louderback, all observers were based in the UK and had a vatiety of telescopes and observings conditions.
On 1987 Nov 28 UT at 20:14 (possibly earlier)-20:44 M.Mobberley saw the northern rim of Proclus very bright for first quarter. There were streaks half way up the wall and these seemed to vary in brightness and length in seconds. Seeing was at first suspected but became doubtful over this being a cause. There was also another bright streak that changed brightness over 5 minute intervals (Cameron says that this is not atmospheric) Apparently video was taken and confirms the effects. A sketch was also made. M. Cook detected a blink with coloured filters i.e. being brighter in red light (Also apparently confirmed by Louderback). Estimated the north west wall was x3 brighter than Censorinus. Censorinus itself varied in brightness as measured using CED devices. P. Foley decided that the north was was much brighter than Proclus (beyond the limits of the scale. However both Moore and Mason agreed that the north wall of Proclus was very bright but shimmering around in the bad seeing. They did not see any bright spots either. A.C. Cook (20:18-20:44UT) confirmed that the north wall of Proclus was very bright. Towards the end of the observing period the north wall had faded from this maximum brightness - Cameron suspects that this might have been as a result of an eyepiece misting up. The TLP was also observed by Foley (Maidstone, Kent, UK) and he reported: "Bright spot on north wall, Moon blink reaction". A BAA Lunar Section report with extracts from the 2006 Cameron catalog. Cameron 2006 catalog ID=315 and weight=4 (or 5?). ALPO/BAA weight=3. Apart from Louderback, all observers were based in the UK and had a vatiety of telescopes and observings conditions.
Alphonsus 1967 Feb 17 UT 17:47-18:12 Observed by Moore and Moseley (Armagh, Northern Ireland, 10" refractor, x300) "Eng. moonblink suspected just inside SW floor on the elevation NW of famous dark patch. Feb 18 was cloudy, then on Feb 19, after some neg. results with blink, suddenly a bright glow in same place." NASA catalog weight=4. NASA catalog ID #1014. ALPO/BAA weight=3.
On 1979 May 04 at 21:30-22:00UT Coates detected a star-like point inside Hipparchus L crater using averted vision. Cameron in her 2006 catalog extension comments that Hipparchus L is a highlands impact crater with a rille on the western ejecta blanket. The crater is the smallest one in a chain that are sequenced to be half the size of the previous crater in the chain. Apparently the largest crater in the chain is Hind with a largely landslide covered floor - although on the south is a dome? with a summit crater. Cameron's 2006 catalog extension gives this TLP an ID of 51 and a weight=2. The ALPO/BAA weight=2.
On 1986 Nov 09 at UT 23:00 Quinn (Glebview, IL, USA, 8" reflector, x49- x305) found īn the vicinity of an unnamed ridge points toward Pico- two bright points about 5 magnitudes brighter than any other part of the Moon. The Alpine valley points directly between these two points. "Came from apparently featureless area. Both points about the same size, but different shapes ~ width of alpine valley" The observer used 4 different eyepieces and the points were brightest in the lowest power. Other specks of light could be seen in the darkness wound the N point. The Cameron 2006 catalog ID=289 and the weight=3. The ALPO/BAA weight=2.
In 1922 May 04 at UT Burnerd (England?) discovered three long mounds in Archimedes crater (rays?). The Cameron 1978 catalog ID=385 and weight= 0. The ALPO/BAA weight=1.
On 1983 Feb 20 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
Montes Teneriffe 1854 Dec 27 UT 18:00-23:00, Observed by Hart & others (Glasgow, Scotland, 10" reflector), "2 luminous fiery spots on bright side on either side of a ridge, contrasting color. Seemed to be 2 active volcanoes. Ridge was normal color. Spots were yellow or flame color. Never seen before in 40 yrs. of observing." Please try to observe this when the Moon is low on the horizon to see if this mimics the effects seen? NASA catalog weight=4. NASA catalog ID #129. ALPO/BAA weight=2.
On 2003 Apr 10 at 00:40UT a GLR observer G. Jasmin (Quebec, Canada, using a 10" F-10 Schmidt Cassegrain) took a photograph of Alphonsus crater on Kodak 400ASA film with an exposure of 1/30th sec. There was a light visible (diameter 10 km) inside Alphonsus and the effect was present for 5 minutes. The observer commented that they have seen a light in this crater many times before, but never as long as 5 minutes. This report was submitted to the GLR group in Italy. The ALPO/BAA weight=2.
Thaetetus 1952 Dec 24 UT 20:00? Observed by Moore (England?) "Bright spot, hazy line of light" NASA catalog weight=4. NASA catalog ID 556. ALPO/BAA weigh=2.
Hyginus Nova 1877 Nov 13 UT 20:00? Observed by Crain, Klein, Eng. officer (France?, Cologne (Germany), Enland?, 6" refractor?, S=E) "Standing out with such prominence, seen at a glance. No trace of it on 14th, in excell seeing. (indep. confirm.?)"NASA catalog weight=5 (very high). NASA catalog ID #198. ALPO/BAA weight=3.
Menelaus 1969 Nov 17 UT 16:00-19:00 Observed by Rubens de Azevedo,A. Monghilhot, E. Leal e Jose Fernandes (Joao Pessoa, Paraiba, Brazil, 8" and 10" reflectors) "Entire crater of Men. illum. by pale greenish light. (Azevedo)" NASA catalog weight=5 NASA catalog ID #1211a. ALPO/BAA weight=4.
On 2009 Aug 28 at UTC 17:00:15-17:00:42 S. Khachatryan (Yerevan, Armenia, 127mm Maksutov-Cassegrain, x171, seeing 9 (1=worst and 10- best), Transparency 5-6 on a scale of 1 to 6) observed in the Chacornac area a series of fiery sparks (dot like with tiny rays), slightly elongated with the multitudinal rays orientated towards the south west direction. The colour was mostly red, with some yellow. The final flash was the most clear. The TLP was tiny in area, but "was distinctly bright against any other object on the Moon". The positional uncertainty of the location of the spark effect was approximately +/- 150 km, based upon an examination of an atlas afterwards. Just prior to the spark effect, something dark, small and fuzzy (only just discrnable to the eye, through the eyepiece) was seen to pass from the west across the Moon in a slight curve, round the surface of the Moon to the east (post observation estimate: seen for 3.5 sec and covered roughly 8% of the lunar diameter in that time). The area of the dark object was comparable in size to (or slightly less than?) craters such as Autolycus F (diameter 3km) or le Monnier E (diameter 4km) i.e. on the limits of vision of the scope used. The location of the flash was not exactly at the same location as the dark object passed across, but gave the impression of starting from it? A back of the envelope calculation of the lunar diameter covered in the time quoted gives an approximate speed (at the lunar distance) of 80km/s or on the very high end of typical meteor streams that pass by. At closer distances, and recalculated velocities, it is unlikely to be a satellite in low Earth orbit (20m/sec at 100km distance), but could perhaps be a bird or insect at a few km range? So was this dark object something in our atmosphere by chance passing across the field of view close to the time of the TLP flare or was at the lunar distance and related to the TLP? Incidentally, no attempt was made during this observation to move the scope to check that the TLP remained stationary against the Moon. The ALPO/BAA weight=2.
On 1889 Jun 06 at 22:00 UT Lade of France (8" refractor) saw two extremely bright spots (Plato B & D). Cameron 1978 catalog ID=262 and weight=2. ALPO/BAA weight=1.
On 1955 Aug 27 at UT 01:51 McCorkle (Memphis, Tennessee, USA, 6.5" reflector, x200) observed a 2nd magnitude bright flare on the dark side of the Moon. This remained steady, fading slightly before abruptly disappearing. Cameron suggests that this might have been a meteor. The Cameron 1978 catalog ID=604 and weight=0. The ALPO/BAA weight=1.
Ross D 1964 Apr 21 UT 04:23-05:01 Observed by the Capens (CA, USA, 16" and 6", seeing 3-5, transparency 5+) "Obscuration of its rim" NASA catalog weight=4. NASA catalog ID #808. ALPO/BAA weight=2.
Although the crater was on the night side, a small bright spot was seen. This was blue, almost UV, and equivalent to a star of magnitude 2. It flashed over intervals of about 30 seconds and changed in colour from UV to blue. The BAA Lunar Section TLP network was alerted. Mobberly and J.Cook did not see much although J. Cook may have seen something, but located else where? Cameron lists this as a confirmed? observation? The Cameron 2006 TLP xtension catalog has this TLP with an ID No. of 258 and a weight of 4. The ALPO/BAA weight is 2.
On 1983 Apr 21 at UT 21:55-22:05 N. King (Winnersh, Berkshire, UK, using a 150cm f/8 reflector, with seeing I and transparency good, little spurious colour, just a little in Plato). Although observing since 21:25UT the observer noticed a just detectable faint green colour just after the dark shade around the inner eastern crater rim. The effect faded and by 22:05UT had completely gone. This report is not in the Cameron 2006 catalog. It is a BAA report. The ALPO/BAA weight=1.
Alphonsus 2004 Feb 29 UT 19:00-19:15 Observed by Brook (Plymouth, England, 60mm OG x120) "Checked central peak of Alphonsus using 60mm OG x120 + right angle prism. Moon at very high elevation, seeing excellent once clouds had dispersed, transparency also excellent. Time of observation 19-00 hrs UT to 19-15 hrs UT. Noticed fluctuation of brightness of A's central peak compared with the peak of Arzachel. Alphonsus' peak generally brighter." BAA Lunar Section report. ALPO/BAA weight=1.
On 1983 Feb 21 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
On 2010 Aug 19 at UT 00:50-01:02 J.Albert (Lakeworth, FL, USA, C11, Transparency 3, Seeing 7-8, 86F and very humid. Oberver checking out repeat illumination condition appearence for Tycho concerning LTP #468 in the 1978 Cameron catalog. Did not see the effect from the original TLP report, but did see, immediately at looking at Tycho a very faint hint of redness in a pencil thin arc (< 1/4 circumference of the rim) confined to the top of the rim of the well-lit north east wall. Coloured arc similar in thickness to Rupes Recta, but not as sharply defined. The outer (E) edge was perhaps sharper than the inner edge. The redness was more on the inside of the top of the rim. The outside of the rim was bright white. This effect was seen in three different eyepieces, at 311x, 224x and 400x. Checked for the effect on other craters nearby but could not see this effect anywhere else. The colour had dissapeared by 01:02UT. The fade took about 1-2 minutes. Observation of Tycho continued until 01:06UT, but all seemed normal. Quick checks were made again on Tycho periodically until 02:50UT but the colour was not seen again. ALPO/BAA weight=3.
On 1979 Jul 03 at UT 20:55-21:20 J-H. Robinson (Teighmouth, Devon, UK, 10" reflector, seeing II) observed that Messier was brighter than Messier A. No colour was observed. The Cameron 2006 catalog ID is 58 and the weight=3. ALPO/BAA weight=1.
On 1964 Feb 22 at UT 05:00 Harris (Whittier, CA, 19" reflector, x100) observed the appearance of a ring to the south east of Ross D. Cameron says that 7 persons have seen this over a 2.5 year period. The Cameron 1978 catalog ID=801 and weight=1. The ALPO/BAA weight=1.
Hyginus Nova 1867 Nov 14 UT 20:00? Observed by Crain, Klein, Eng. officer (France?, Cologne (Germany), Enland?, 6" refractor?, S=E) "On 13th it was standing out with such prominence, seen at a glance. No trace of it on 14th, in excell seeing. (indep. confirm.?)"NASA catalog weight=5 (very high). NASA catalog ID #198.
Tycho 1940 Jul 14 UT 02:00? Observed by Haas (NM? USA, 12"? reflector) "Luminous marks in shadow, ragged edged & irreg. shape. E. wall had a milky luminosity" NASA catalog weight=4. NASA catalog ID #468. ALPO/BAA weight=2.
Gassendi 1967 Feb 18 UT 20:30-20:40 Observed by Moore, Moseley (Armagh, Northern Ireland, 10" refractor, x300) "Red color in crater (in dark)". NASA catalog weight=4. NASA catalog ID #1015. ALPO/BAA weight=4.
On 1980 May 23 at UT21:14-21:55 J.H. Robinson (Teighmouth, Devon, UK, 12" reflector, seeing II-III) could see Aristarchus in blue and clear filters, but not in red light. Robinson saw some variability in this effect with time. Cameron 2006 catalog ID=96 and weight=3. ALPO/BAA weight=2.
On 1980 May 23 at UT 21:14-21:18 Marco Petek (Porto Alegre, Brazil) saw a shadow extending south east from Campanus opposite to the Sun - however Foley thinks this is normal. Cameron 2006 catalog ID=96 and weight=0 or 1. ALPO/BAA weight=1.
On 1980 May 23 at UT21:14-22:18 G. Blair (Bridge of Weir, Scotland, UK, 216mm reflector, seeing II-IV) found a red tinge along the western wall of Coperncius, perhaps 32km in length. This was invisible in a blue-green Wratten 44a filter, but was unmistakble in a red Wratten 25 filter. Could have been spurious colour - but no other regiosn were affected. The ALPO/BAA weight=2.
Copernicus 1955 Jul 28 UT 20:20 Observed by Firsoff (Somerset, England, 6.5" reflector x200) "Great brilliance of the terraces in E(IAU?) wall system(?) gets specular refl. (he gave 0820UT, but must have meant 2020" NASA catalog weight=4 (high). NASA catalog No. #600.
Atlas 1966 Dec 21 UT 17:10 Observed by Andre (Belgium, 3" refractor) "Bright spot on SE part of floor, not seen in photo on 12/18/66" NASA catalog weight=2 (low). NASA catalog ID #1003.
Aristarchus 1976 Jun 06 UT 21:30-21:40 S.Spencer and R. Hunt (60mm refractor, x150 and x60) both observed red on the SW corner of Aristarchus. ALPO/BAA weight=1.
2012 Sep 24 UT 22:00-23:00 Copernicus. E. Horner (Salisbury, UK, 15cm reflector) observed a prominent red arc where the sunlit part of the interior wall met the shadow. Sometimes the arc was 1/4 the way around the interior, and sometimes half of the way around. Telescope moved, but the red arc stayed where it was. Eyepieces change, but the effect remained. Other parts of the Moon checked, but no red seen. There were however splashes of green e.g. Longomontanus on the terminator, elsewhere further inland from the termionator, and little splashes of green on Mare Frigoras - but lasting a brief time. The red colour was as strong as a red LED and the green similar to that of the northern lights. The observer's husband was asked to independetly check Copernicus and remarked that he could see a little bit of green at the top and some red near the bottom, along the line of the internal shadow. Although there were checks for red elsewhere on the Moon and none were seen, the Moon was starting to get low and it is typical of spurious colour in a few respects. Therefore the ALPO/BAA weight=1 for safety.
On 1980 May 25 at UT 22:18 G. Blair (Bridge of Weir, Scotland, 216mm reflector, seeing II-IV) suspected a short sharp flash, white in colour north of Tycho's north wall. Nothing more seen. ALPO/BAA weight=1.
On 1980 May 23 at UT22:30 (P.W. Foley (Kent, UK, 10" reflector, seeing II) described Aristarchus as a "blue luminous patch", but it was too faint to obtain a CED brightness measurement. Cameron 2006 catalog ID= 96 and weight=3. ALPO/BAA weight=2.
The UT given in the Cameron 2006 extension catalog are: 20:58, 23:25- 02:20 and 01:40-04:00, however it is not clear what UT applies to which of the observers or the two features reported as having TLP on that night. On 1984 Feb 12-13 Marshall (South Anerica, seeing=III-II) noticed that Moltke was very bright with a fuzzy violet hue - he had never seen it like this before. Cameron 2006 catalog extension TLP ID= 240 and weight=2. ALPO/BAA weight=3.
The UT given in the Cameron 2006 extension catalog are: 20:58, 23:25- 02:20 and 01:40-04:00, however it is not clerr what UT applies to which of the observers or the two features reported as having TLP on that night. On 1984 Feb 12-13 Marshall (South Anerica, seeing=III-II) saw initially no craterlets in Plato, despite the Moon being at a high altitude. At 01:45UT the northwest corner of Plato was red. Again no other craterlets showed. He found the surrounding wall to be too bright and this was confirmed by Crater Extenction Device readings and had problems focussing on the crater. By 02:00-02:50UT he noticed variability in the visibility of the craterlets. By 03:48UT the central craterlet was much brighter than before and the crater doublet had brightened but the southern craterlet was still invisible. Cameron comments that Marshall was a very experienced observer. A. Cook (of Frimley, UK) obtained a photodiode line scan image of Plato. The brightness of the north west wall was brighter than the bright area on the west wall. Marshall and Mosely both saw a dark area on the floor of Plato close to the south wall (from clock position of 11 o'clock. There was a prominent white spot on the floor and the central craterlet was seen, but only under good conditions. Mosely does not discuss the west and north west wall brughtnesses that were seen earlier by Cook and Marshall. Cameron 2006 catalog extension TLP ID=240 and weight=2. ALPO/BAA weight=3.
Plato 1976 Sep 04 UT 02:35-03:35 Observed by Porter (Sarragansett?, Rhode Island, USA, 6" reflector x100, S=5, T=?) "At 0235h albedo of floor was est. at 3. At 0325h the pt. was albedo =1, 2 whole steps darker than earlier & noticeable to the obs. 10-15 min later it returned to normal. (the few meas. of albedo for this age were 1.5-2 which suggests that the meas. of 3 was the anomalous one. Another pt. did darken -- as reported). NASA catalog weight=3. NASA catalog ID #1448. ALPO/BAA weight=1.
On 1988 Dec 18 at UT20:25 W. Cameron (Sedona, AZ, USA - TV camera telephoto) noticed on a live TV shot of the Moon (apparently channel 3 TV broadcast at 11:25PM local time), that Proclus was brighter than Censorinus (or Dionysus) and was the brightest feature on the Moon. It was photographed from San Juan in Puerto Rico. Cameron 2006 catalog ID= 342 and weight=. ALPO/BAA weight=5. ALPO/BAA weight=1.
Ross D vicinity 1964 Apr 22 UT 05:43-0637 Observed by Cross et al. (Whittier, CA, USA, 19" reflector, x800-1200 & filters, S=7- 8, T=1) "Gas cloud over it & its companion; everywhere else was fine detail" NASA catalog weight=5. NASA catalog ID #809. ALPO/BAA weight=3.
Daniell 1979 Jul 04 UT 20:40-21:19 Observed by Saxton (UK?, 216mm refractor?, seeing III, transparency: Good) "noticed that the east end of Daniell was bright and fuzzy and had somewhat poorly defined edge to the bright part. A sketch was made, and possibly shows the same as in past reports" BAA Lunar Section Report. Cameron 2006 extension catalog ID=59 and weight=3. Observer located in Leeds, England and used a 9" reflector x250. Seeing=III and transparency=good. ALPO/BAA weight=2.
Colour seen, mostly blueness on south rim and exterior of south rim at Bullialdus crater. Blueness seen too on Plato on inner SSW rim, but no colour reported on any other craters. Seeing III, 12" reflector used x200 and x360.
Colour seen, mostly blueness on inner SSW rim. Blueness also seen on south rim and exterior of south rim at Bullialdus crater. No colour reported on any other craters. Seeing III, 12" reflector used x200 and x360.
H. Davies (Llamandel, Swansea, UK, using a 3" refractor, detected a short duration reddish hue along the inner NE-NW? rim (4-7 O'Clock location. Sketch supplied to Foley (BAA coordinator). No similar effect seen elsewhere. A.C. Cook (Frimley, UK) detected spurious colour on several craters, including Plato that night. Cameron 2006 Catalog Extension ID= 337 and weight=0. ALPO/BAA weight=1.
In 1872 Mar 19 at UT 23:17 an unknown observer observed in Sinus Iridum: "Covered with a light gray shadow thru which he saw dimly the surface below - indicating obscuring matter over it. (Cameron says: only w. 1/3 of bay would be in shadow as boundaries are 25-37W)". The Cameron 1978 catalog ID=178 and the weight=3.
Alphonsus 1967 Feb 19 UT 20:30-21:11 Observed by Moore, Moseley (Armagh, Northern Ireland, 10" refractor, x360) "Blink area between 1900 & 1940 with neg. results. Suddenly at 2030 there was a bright red glow, brightest Moseley had ever seen, at Feb 17 suspectec place. Moore returned at 2037h in time to see fading effect. Brief return at 2105-2111; neg. from 2120-2250h then clouds. Nothing on Feb 20. confirmation)." NASA catalog weight=5. NASA catalog ID #1016. ALPO/BAA weight=4.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars saw three dark spots suddenly appear on Mare Crisium and disappear approximately 30 minutes later. Cameron 2006 catalog extension ID=145 and catalog weight=4. ALPO/BAA weight=2.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars saw TLP activity in Plato that Cameron thinks confirms what UK observers saw later. Cameron 2006 catalog extension ID=145 and catalog weight=4. ALPO/BAA weight=1.
Alphonsus 1966 Apr 01 UT(?) 03:00-03:20 Observed by Jenning, Harris (Coral Estates, CA, USA, 12" reflector) "Red patch from c.p. to W. wall (no confirm. from Corralitos obs. moon blink device & obs. at that time)" NASA catalog weight=3. NASA catalog ID #924. ALPO/BAA weight=2.
Agrippa and vicinity 1878 Dec 04 UT 20:00? Observed by Capron (France?) "Odd, misty look as if vapor were in or about them" NASA catalog weight=3 (average). NASA catalog ID #209.
Observed by G.H. Johnstone of Albuquerque, NM, USA on 1954 Nov 05 UT 20:00 (according to Cameron), but 02:00-04:00 according to the original observation and at colongitudes 34.7 to 35.7 deg. 4" reflector, x150 used. The obsewrver reported that the western part (about 1/3rd of the interior) was pitch black with shadow. However there was a zone about as wide, or perhaps only a fourth of the total width that was distinctly a lighter bluish shade, almost like twilight. The shadows of the peaks on the western edge of the rim were clearly seen crossing this bluish shadowed area. Then this area ended sharply, and the farside was bathed in light from the rising sun. The shadows of the peak were sharply defined across the twilight zone, and the edge of the pitch black shadow was easily defined but not as sharp as the darker shadows crossing the the blue twilight zone. The observer checked other craters but did not see this condition in any of them - they all had the abrupt division between black and white that we would normally expect to see. Cameron 1978 catalog ID=579 and weight=2. Reference 1962 edition of ALPO's Journal: The Stolling Astronomer. ALPO/BAA weight=3.
Censorinus 1969 Nov 19 UT 1922 Observed by Brandli (Wald, Switzerland, 6" reflector, x90) "Brightening -- photo, (the author, WBC, cannot verify from photo. It is brighter, but so are Proc. & Dionys. -- it being between. i.e. Proc. > Censor. > Dionys. Apollo 12 watch)." NASA catalog weight=5 (very high). NASA catalog ID #1220. ALPO/BAA weight=1.