Alphonsus 1958 Nov 03 UT 02:30-03:30 Observed by Kozyrev, Ezerski (Pulkova Observatory, Crimea, Ukraine, 50" reflector, 23A/mm spectrograph) UT03:00-03:30 "C.p. redder than rest; emiss. spect. in 4756A, 4100, 3950A (C3), 5165, 5130A (Swann bands) 3 spect. over 3.5 h. Image of c.p. weakened in viol. light on spect. Noted visual decrease in brightness & reddish glow. Decrease in bright, & unnusual white color(at 0300h- 0330h). Sudden decrease in vis. bright. Spect. started -- gave norm. Spect. (0330-0340h), conditions almost identical to Alter's on Oct. 26, 1956. Nothing seen on Nov. 2-3" NASA catalog weight=5. NASA catalog ID #703. ALPO/BAA weight=5.
Ptolemaeus 1825 UT 23:45 Observed by Schwabe (Germany?) "Bright spot" NASA catalog weight=4 (high). NASA catalog ID #108. ALPO/BAA weight=3.
On 1916 Jan 27 at 22:00? Markov (Russia) noticed that a light sector was visible at the bottom of Plato, in shadow, and contained 3 bright spots, reminiscent of phfescent bodies. The Cmaeron 1978 catalog ID=362 and weight=3. The ALPO/BAA weight=3.
Copernicus 1979 Sep 15 UT04:40-05:25 J.Saxton (Leeds, UK, 8.5" reflector, x185, seeing I-IV, worsening towards local sunrise) made a sketch and noted that the northern tip of the internal shadow, by the floor, was not completely dark. The edge of the floor here could be distingished, even though it was in shadow. ALPO/BAA weight=1.
On 1824 Jan 27 at UT03:00 Gobel (Koburg, Germany) observed a reddish colour in Aristarchus crater. The Cameron 1978 catalog ID=98 and the weight=4. The ALPO/BAA weight=3.
On 1965 Aug 01 at UT 05:00 Welch (Table Mountain, CA, USA, 6" reflector, seeing=excellent) observed some star-like flashes in Aristarchus in ashen light. Cameron says 7/31/65 in MBMW=local time = 6/1/65 in UT. The Cameron 1978 catalog ID=886 and the weight=2. The ALPO/BAA weight=2.
On 1881 May 04 UT 20:00 "Gamma" a psuedonym for an astronomer (Germany?) observed Aristarchus to be be a very bright 8th magnitude star with pulsations. The Cameron 1978 catalog ID=221 and the weight=3. The ALPO/BAA weight=2.
On 1970 Aug 05 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3" refractor, x60, x100, x135, seeing=good?) saw the same characteristics in Aristarchus (bright patches with electric blue colour) as had been seen on Aug 04, but the intensity was less. The Cameron 1978 catalog ID=1271 and weight=1. The ALPO/BAA weight=1.
Bright spot seen. The Cameron 1978 catalog gives this TLP an ID No. of 36 and a weight of 1. The ALPO/BAA catalog weight is also 1.
Mare Nectaris 1880 Jan 18 UT 20:00? Observed by Gaudibert (France?, seeing poor) "Whole of sea was foggy. Fog extended into Fracastorius. Gruithuissen said seeing was unsatisfactory" NASA catalog weight=0 (very unreliable). NASA catalog ID #216. ALPO/BAA catalog weight=1.
Madler 1971 Mar 03 UT 21:30-21:45 J Andrews (Christchurch, UK, 8.5" reflector, x240, seeing I) observed a red fan shaped area to the south of Madler - it covered part pf the mountainous area to the south. The colour started fading at 21:45UT and had gone within 5 minutes. ALPO/BAA weight=1.
Near Theophilus - south of Madler - 1971 Mar 03 UT 21:30-21:35, 21:47 Observed by Hedley-Robinson (England, 3.75" refractor, x164, S=G, steady haze) "Reddening in a fan form on bright area of that formation, but red did not extend fully over it. Blink patrol started at 2005h but no red till 2130h. Definte blink at 2147h" NASA catalog weight=3 (average). NASA catalog ID #1287.
Torricelli 2011 Dec 31 UT 16:39-17:00 R.Braga (Milan, Italy, 80mm refractor) found the north rim or Torricelli to be very bright at the start of the observing session but dimmed considerably at around 17:00UT. Observer not sure on the normal appearance of this crater. In view of the seeing conditions and small aperture, this TLP is being given an ALPO/BAA weight of 1.
Noble (England?, seeing=fair) observed a badly defined white patch east of Picard. Cameron 1978 catalog ID=201 and weight=3. ALPO/BAA weight=2.
Large plume-like diffuse cloud over central peak, very large compared to central peak (@ approx 30km diameter) with intensity much different from other parts. Brightness between walls and shadowed floor. Would take 3 minutes to collapse, so continuously fed. 13-14 days later, at SS, central peak was normal. Kuiper took photos after Kozyrev's observations, but saw nothing abnormal. Drawing. Haas saw nothing in 12inch reflector at the time. Cameron 1978 catalog TLP ID=705 and weight=4. ALPO/BAA weight=2.
On 1981 Aug 09 at UT05:08-05:21 D. Louderback (South Bend, WA, USA, 3" refractor) found that the bright patch in the southern part of Eimmart, could only be seen well in red light (this is between A, C and D in his feature notation) i.e. 5 brightness values higher than in white or blue light. Indeed in white light this bright area was closer to the east wall bright spot. The Cameron 2006 catalog ID=149 and weight=4. The ALPO/BAA weight=2.
On 1982 Aug 01 at UT20:50 M. Mobberley (Suffolk, UK, 14" reflector, seeing III-IV) found that LaPlace A was significantly more prominent than usual - comparisons were made with photographs in books. The Cameron 2006 catalog ID=178 and weight=3. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm reflector, thin streamers of cloud across sky, but no wind) Aristarchus had a faint pale yellow tint along the rim and the crater was very bright. No detail seen in in Vallis Schroteri. Yellow spot also seen on the northern limb (Carpenter and Pythagoras?). Both effects had been seen the previous night and were confirmed by friends. Colour still present when observing stopped at 03:00 UT. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm reflector, thin streamers of cloud across sky, but no wind.) Carpenter had a yellow tint along the W rim. Ywllow tint seen on Pythagoras and also Aristarchus. Effect had been seen the previous night and were confirmed by friends. Colour still present when observing stopped at 03L00 UT. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm reflector, thin streamers of cloud across sky, but no wind.) Pythagoras had a yellow tint along the W rim. Ywllow tint seen on Carpenter and also Aristarchus. Effect had been seen the previous night and were confirmed by friends. Colour still present when observing stopped at 03L00 UT. The ALPO/BAA weight=1.
Aristarchus, Cobras Head 1966 Oct 27 UTC 02:30-03:00 Observed by Delano (new Bedford, Massachusetts, USA, 12.5" reflector x360) and Corralitos Observatory (Organ Pass, NM, USA, 24" reflector & Moonblink) "C.p. of Aris. noticeably less bright thro blue filter but very bright thru red & no filter. Shadow of C.p. faint & grayish whereas wall shad. were normal black, (confirm. of Gordon, even tho 2h later?). Sketch of C.p. rated at 10deg in red & no filter, & 8deg in blue. Other features rated same in all 3. Cobra Head had 2 red patches. Sketches. Not confirm. by Corralitos MB". NASA catalog weight=5 (very high). NASA catalog ID 989.
Sirsalis 1999 Jan 30 UTC 01:00-01:20 Observed by Giuseppe Sorrentino (Italy) described as: "A temporary change in appearance to sunlit floor of crater" for further references including images please see: http://digilander.libero.it/gibbidomine/sirsalis.htm and http://digilander.libero.it/gibbidomine/tlp.htm and http://digilander.libero.it/gibbidomine/fotometriasirsalis.htm and http://www.uai.it/sez_lun/sirsalis.htm
Manillius 1969 Jul 27 UT 05:45-05:46 Observed by Wairy Cardoso (Rio de Janeiro, Brazil, 13" refractor, x360) "Bright spot in Manillius (Apollo 11 watch, J. M. L. da Silva says obs. no good because of inexper. of obs)" NASA catalog weight=0. NASA catalog ID #1189. ALPO/BAA weight=1.
Aristarchus, Herodotus - 1967 Sep 16 UTC 23:50-23:55 observed by Seeliger (Dresden, Germany, 30" reflector, 90, 140x) "Dark streaks on E.(ast. ?) outside walls of both craters. No shadow from Herod. wall. Drawings (wall < 18 deg slope if no shadow normally)." NASA catalog weight=3 (average). NASA catalog ID=#1044.
Near Furnerius 1920 Nov 23 UTC 20:00? Observed by an unknown observer (England?) "Shaft of light projecting from Moon, or spot so bright it appeared to (strong ray?)" NASA catalog weight=1 (very low). NASA catalog ID #378
On 1977 Apr 01 at UT 20:40-21:10 D.Sims (Devon Valley, Dawlish, Devon, UK, 25.4cm reflector, Wratten 25 and 44a filters, x300, seeing II) found Schroter's valley clearer in red than in blue. No colour filter reactions seen on other features. This is a BAA Lunar Section observation. ALPO/BAA weight=2.
Menelaus 1969 Jul 27 UT 1969 Jul 27 UT 06:27-07:30 Observed by Wairy Cardoso (Rio de Janeiro, Brazil, 13" refractor, x360) "Brightening in Menelaus (Apollo 11 watch, J. M. L. da Silva says obs. no good because of inexper. of obs)" NASA catalog weight=0. NASA catalog ID #1189. ALPO/BAA weight=1.
On 1915 Jul 24 at UT 22:00? Barabashovihi (Russia) observed a TLP on the west limb: "When phi Strettsa (?) approached the edge but still separated, the star began to stretch in a belt 3X its own length & then instantly disappeared. Probably no significant atm. or vapors. (similar to other reports of fading occult. Gives limb as E. but that is in ast. convention)". The 1978 Cameon catalog ID= 357 and weight=2. The ALPO/BAA weight=1.
Bright point seen on the dark part. Cameron 1978 catalog ID is 38 and the weight assigned is 5.
On 1988 Apr 01 atUT01:15-03:20 H.Hill (Lancaster, UK, 10" reflector, x286) observed that east of Lichtenberg were ëxtensive rosy areas" around the northern edge of the lava sheet. Hill believes that it may have been the same effect as seen by Madler (Germany), Barcroft (USA) and Baum's (UK) 1951 observation. The colour was "ünmistakable" and nothing to do with the atmospheric spurious colour. Other features were checked. the cameron 2006 catalog ID=322 and the weight=3. THe ALPO/BAA weight=2.
On 1977 Apr 02 at UT22:00-00:00 L. Fitton (Shaw, Lancashire, UK, 8.5" reflector, x200, Wratten 25 and 44A filters, seeing II-III, transparency, good) noticed in Aristarchus, blue to the north west (IAU?) internal wall, also blue observed in other small bright objects against dark backgrounds. Lunar rotational axis and optical normal related such that the normal runs NW-SE (IAU?) through these features. Observer deduced that the coliur was obviously spurious and no blink was seen in any feature. The blue disappeared as the lunar altitude increased and no blue seen by 00:00UT. This is a BAA lunar section observation. The ALPO/BAA weight=1.
On 1992 Jan 18 at UT 22:34-23:48 A.C. Cook (Frimley, UK, 8" reflector, seeing=III) was able to see 4 craterlets and two rays on the floor of Plato. This was suprising because Moore, using a larger telescope and magnification, was unable to see any detail here on 1991 Dec 12th at 02:10 - according to Cameron. The Cameron 2006 catalog ID=438 and the weight=2. The ALPO/BAA weight=1.
Aristarchus 1982 Nov 29 UT 21:47 Observed by P. Madej (Huddersfield, UK) flashes seen to NW. ALPO/BAA weight=1.
1982 Mar 08 Daniell UT 22:49-22:57 P.Madej (Hudersfield, UK) - A colour and brightness anomaly was seen a TLP alert was put out. Cameron 2006 catalog extension weight=165 and weight=3. ALPO/BAA weight=2.
Cauchy 1969 Jul 29 UT 06:00-06:22 Observed by Claudio Pamplona and Jackson Barbosa (Fortaleza, Brazil, 2" refractor) "very bright and clear(?) pulsating 3,3s,3s with crater illum. then 3s area illum. red & no filter area pulsated for 22m. Confirmed by Jackson (Apollo 11 watch)". NASA catalog weight=3. NASA catalog ID #1193. ALPO/BAA weight=3.
On 1970 Aug 17 at UT 02:40 Pedler (England) noted that the shadow flowed around instead of over Plato. Wondered if shadow matched the gray of the crater. Within minutes the shadow line looked normal again. At 04:41UT Claudio Pamplona (Brazil) saw a pulsation in Plato during a lunar eclipse. He thought that this was due to falling temperatures. The Cameron 1978 catalog ID= 1274 and the weight=0. The ALPO/BAA weight=1.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 3 minutes Aristarchus brightened. Cameron 2006 catalog ID=180 and weight=0. ALPO/BAA weight=1.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 5 minutes Copernicus flashes. Cameron 2006 catalog ID=180 and weight=0. ALPO/BAA weight=1.
Gauss 1967 Sep 19 UT 02:33 Observer: Chilton (Hamilton, ON, Canada, 12.5" Gregorian, 200x and a 4" refractor). In a polaroid filter the west wall was missing. Effect seen in large scope and also in 4-in finder. His conclusion was that W. wall reflected polarized light. Cameron 1978 catalog weight=3 (good) and TLP ID #1047. ALPO/BAA weight=4.
Aristarchus 1973 Feb 17 UTC 22:15-22:45 Observed by Rose, Hunt, Robinson, Coleman (UK) described in the NASA catalog as: "Rose tho't W.rampart was diffuse over 1/3 its length. Alerted Hunt who tho't there was a dark patch (in poor seeing) but the diffuse effect was neg. Robinson tho't things norm. also Coleman(Seeing=poor). Moore thinks not real phenom. Rose used a 14", hunt a 6" and Robinson (and? Coleman) a 10" reflector. NASA catalog weight=1 (low). NASA catalog TLP ID No. 1363
Mare Crisium 1965 Oct 11 UTC 05:15 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
On 2012 Jan 09 UT 21:01-21:08 Hahn crater was imaged by N. Hazel (Beverley, Yorkshire, UK, Nikon D7000 with 70-300 zoom at max, with 2x teleconverter, at f9, 1/320 sec, ISO 400 – tripod mounted, mirror up), A series of images were taken. The 21:06 one showed a grey column cutting across the central floor of the crater from the west and then bisecting the eastern rim. All detail inside is completely invisble. Some (but not all) of the other images showed a more blurred view of this feature. It's possible that this was a seeing ripple effect, or just the natural appearance of shadings on the Moon at this time, however for now this will be given an ALPO/BAA weight of 1.
Mare Crisium 1965 Oct 11 UTC 07:32 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
On 1988 Apr 03 at UT02:25-02:30 Culver (Harker Heights, X, USA, Meade 2045 reflector, x40, seeing=turbulent) detected flashes coming from just north of the centre of Mare Tranquilitatis. Some of these flashes were of a duration of seconds whilst others were several minutes. Altogether ~20 flashes were seen, and not in the same place. "5 small star-like points could be located - and there were lots of craterlets". The spots were "lined up E-W at N of 10 deg latitude." Colour was not visible on these nor variations. Apparently the observer had seen this type of TLP before but had not reported them. The Cameron 2006 catalog ID=323 and weight=2. the ALPO/BAA weight=2.
Aristarchus 1970 Apr 22 UT 07:00 Observed by Thomas.
On 1970 Aug 12 at UT21:00? an unknown observer commented about Plato: "Light #22, remarkable increase in brightness. #32 subsided & #14 shone out then faded & #16 brightened. (Fort says that till Apr. 1871 selenog recorded 1600 obs. of fluctuations of lights in Plato & had drawn 37 graphs of indiv. lights. These were deposited in the library of the Royal Astronomical Society by Birt)." The Cameron 1978 catalog ID=169 and the weight=3. The ALPO/BAA weight=2.
Plato 1869 Sep 21-22? UTC 00:00? Observed by Gledhill (Halifax, UK, 9" refractor) "Group I craters-notable illum. accomp. by a single light on a distinct spot. (similar to Aug. obs. & if same phase as Ap 1870, date =22nd.). NASA catalog weight=2 (poor). NASA catalog ID #164.
Aristarchus 1966 Jul 04 UTC 06:15-06:35 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x142) & by Corralitos Observatory (Organ Pass, NM, USA, 24" reflector). "S.region of floor was granulated & dull est. at 6 & pale yellow-brown tint. Rest of crater est. 8 bright white. Not confirmed by Corralitos MB" S=5, T=4. NASA catalog weight=4 (high). NASA catalog ID #955. ALPO/BAA weight=3.
On 1992 Jan 20/21 at UT 23:49-00:15 M.C. Cook (Frimley, UK, 3" Questar telescope, x130, seeing=III) managed to see the central craterlet in Plato and an unnamed one north west of Mons Pico. Cameron comments - "were this & No. 429 LTP or just good seeing?)." Note it is possible that she mean LTP 439 in which case it would refer to the previous nights TLP. The Cameron 2006 catalog ID=439 and the weight=2. The ALPO/BAA weight=1.
Mare Crisium 1965 Oct 11 UTC 10:10 Observed by McCord (Mt Wilson, CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K) abnormally high compared with 23 other areas (including Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60" reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in magnitude in 2.5 hours - a photometric measurement. The average magnitude for this age is 4.03, so therefore the crater had brightened by two times above normal. The Cameron 1978 catalogID=769 and the weight=5. The ALPO/BAA weight=3.
On 1992 May 19 at UT 01:00-02:05 P. Moore (Selsey, UK, 15" reflector, x260) saw at 01:25UT an unmistakable red-orange glow on the south and south-east rim with the "Spur". Apparently Chapman (Kent, UK) detected it easily. At 01:33UT the colour was barely visible. No TLP alert was issued because the souther edge of Mons Pico also exhibited a hint of colour, and anyway the seeing conditions were poor. Despite this no other features revealed colour. The Cameron 2006 catalog ID=446 and the weight=0. The ALPO/BAA weight=1.
On 1992 May 19 at UT 01:00-02:05 P. Moore (Selsey, UK, 15" reflector, x260) noted that the southern slope of Mons Pico had a tint of colour. No other features revealed colour apart from Aristarcus, where a TLP was going on. The Cameron 2006 catalog ID=446 and the weight=0. The ALPO/BAA weight=1.
Lichtenberg area 1940 Oct 18 UT 07:11 Observed by Barcroft (Madera, CA, USA, 6" reflector) "Pronouced reddish-brown or orange color, less marked on next nite, & slight on 22nd, see #'s 477, 478." NASA catalog weight=3. ALPO/BAA weight=2. NASA catalog ID #476.
Aristarchus 1970 Apr 23 UTC 07:00 Observed by Thomas
Aristarchus 1983 Oct 23 UT 19:00-01:30 Observer: Foley (Kent, UK, 12" reflector, seeing=II) noiced at 19:00UT an extended bright spot on E wall and extending beyond. This was brighter than other areas of the crater. There was also occasional star-like glistening. Foley comments that the inside of Aristarchus was slightly obscured. The TLP started fading from UT20:30 and finished by 01:30UT. six out of nine independent observers confirmed the effects seen. In total 14 observers observed, 9 reported back and 6 found abnormalities in Aristarcus though all encountered variable seeing conditions - some had spurious colour. Cameron comments that this was one of the best recorded/confirmed TLP events. All CED brightness measurements obtained were very high. Moore, Nicolson and Clarke (5" refractor and 15" reflector, 230-350xseeing III) found the crater to be very bright at 19:11UT through a 5" refractor and there was a blob on the east rim (Bartlet's EWBS?) at 19:14UT. Nicolson also saw a very bright star-like area on the eastern wall but this was not defined as it usually is. The crater was also very bright at 22:43UT using the 15" reflector available to these observers. At 01:07UT they used a Moon blink and discovered that the bright region was bright in blue light and less bright in red - although this was not a detactable blink when switching rapidly between filters. They found that the crater had returned to normal by 01:15UT. M.C. Cook (Frimley, UK, seeing III-IV) observed a large diffuse spot on the east of the crater that was brighter in blue than in red light and the CED device gave a high reading. J.D. Cook (Frimley, UK, seeing III-IV) made a skecth that showed the bright spot extended on the east wall - again the CED reading was high and a lot of detail was visible on the floor. A.C. Cook (Frimley, UK, seeing III-IV) also noted remarkable detail and the bright (as confirmed by CED) blob on the eastern rim. G. North (Sussex, UK, seeing III-II) also confirmed the bright blob on the eastern wall. Wooller found the north west wall was a dirty yellow colour - though no colour was seen elsewhere in or outside the crater. Mosely found the crater to be bright and his sketch revealed the extension of the bright blob on the eastern rim and again a great deal of interior detail. Amery (Reading, UK, seeing III) found Aristarchus to be "a brilliant splash against dulled background in violet filter, especially polarizing filter. CED + polarizer readings high, but not as high as previous night". Mobberley (Suffolk, UK, seeing III-IV) remarked that "spurious colour a total mess around Aristarchus & nothing abnormal seen". A photograph was taken at 20:50UT reveals the bright blob and entire detail. Peters (Kent, UK, seeingIII-II) observed Aristarchus with a UV screen from 20:15-21:23UT and comented that althogh being very bright, there was no variation between white and UV. It was checked with a Moon Blink device and the radial bands were clearly seen in white light, < in blue. The Cameron 2008 catalog ID=233 and the weight=5. The ALPO/BAA weight=4.
Aristarchus 1964 Oct 23 UTC 02:35-02:45 Observed by Bartlett (Baltimore, MD, USA, 3" refractor, 133 & 200x, S=3-5, T=4) "South floor region granulated, 6 deg bright with very faint trace of pale yellow color; rest of crater 8 deg bright." NASA catalog weight=4 (good), NASA catalog ID #859.
In 1962 Sep 16 at UT08:05 Spirad (Victoria, B.C., Canada, 48" reflector) obtained a spectrum with a UV emission, in H & K lines compared to Jupiter and Mars. II-AO plates, 6A/mm dispersion. Fraunhofer lines much shallower than planetary ones. (whole Moon). The Cameron 1978 catalog ID=770 and weight=5. The ALPO/BAA weight=4.
Aristarchus 1970 Apr 24 UTC 07:00 Observed by Thomas
Lictenberg Area 1940 Oct 19 UT 07:11 Observed by Barcroft (Madera, CA, 6" reflector) Pronounced reddish-brown or orange color. Less marked than previous night, & slight on 22nd. See #'s 477; 478". NASA catalog weight=3. NASA catalog ID #476. ALPO/BAA weight=2.
Macrobius 1971 Mar 15 UT 02:07-03:15 Observed by Sparks (Exmouth, UK, 6" reflector x400) "Strong pink color extending whole curve of crater's illum. wall, starting & ending in shadow side. Color grew deeper, then faded & ended at 0315h. Changed eyepieces. No other feature had this tho. looked for. Survived many separate powers of eyepieces." NASA catalog weight=2 (low). NASA catalog ID #1289.
On 2009 Jun 11 at UT01:00-01:15 C. Brook (Plymouth, UK, 2" refractor, x25, seeing excellent and no cloud or haze) obsrved fluctuations in the brightness of Aristarchus crater. No brightness fluctuations were seen elsewhere. The ALPO/BAA weight=1.
Posidonius 1849 Feb 11 UT 02:00? Observed by Schmidt (Athens, Greece, 7" refractor) "Bright little crater in it was shadowless. Schroter saw repeated changes in it & others & once saw this crater's shadow replaced by a gray veil. Gruithuisen saw the same thing as Schroter in 1821." NASA catalog weight=4 (high). NASA catalog ID #128. ALPO/BAA weight=3.
Near Aristarchus 1970 Mar 26 UT 17:00 Observed by Sekiguchi, Maisumoto (Tokyo, Japan, 36" reflector) "Pts. N & S of crater were brighter by 0.3 & 0.2 mag. respectively than normal -- far beyond limits of error. Color index (CI) also showed less depend. on phase by 0.1-0.2 mag. Did not show reddening dur. enhancement. Polariz. was less by 1-2%. Photog. photom. showed brightening over whole moon. Resolution = 2,3 km" NASA catalog weight=5 and catalog ID #1236. ALPO/BAA weight=3.
North of Kepler 1970 Mar 26 UT 17:00 Observed by Sekiguchi, Maisumoto (Tokyo, Japan, 36" reflector) "Photog. photom. showed brightening over whole moon. CI N. of Kepler enhanced by 0.5 mag. Resolution = 2,3 km" NASA catalog weight=5 (Very high). NASA catalog ID #1236.
1886 Oct 16 UTC 22:00 Observed by Lihou (France?) "Unusual phenomena ? (drawing)" Ref Sirius, Vol 20, 45 p69 (1887). NASA catalog weight=1 (very low). NASA catalog ID #252. ALPO/BAA weight=1.
Plato 1915 Apr 03 UTC 23:00? Observed by Markov (Russia) NASA catalog describes observation: "Appearance of bright spots that could even be seen in a 43mm (2-in) tube" 2" refractor used. NASA catalog weight=2. NASA catalog TLP ID NO. #350. ALPO/BAA weight=2.
Copernicus 1955 May 12 UTC 03:40 Observed by Firsoff (Somerset, UK, 6.5" reflector x70) "Pico was invis. in violet filter. Copernicus was bright in it." NASA catalog weight=4 (high). NASA catalog ID #591.
Mt Pico 1955 May 12 UTC 03:40 Observed by Firsoff (Somerset, UK, 6.5" reflector x70) "Pico was invis. in violet filter. Copernicus was bright in it." NASA catalog weight=4. NASA catalog ID #591. ALPO/BAA weight=3.
On 1985 Sep 04 at UT 22:15 A.V. Arkhipov (Russia) detected a bright flash in Mare Tranquilitatis that lasted < 1 second and had a diameter of < 2 arc seconds i.e. the limit of seeing resolution. The Cameron 2006 catalog ID=280 and the weight=3. The ALPO/BAA weight=3.
Aristarchus-Herodotus 1967 May 29 UT 06:40-07:25 Observed by Anderson (Manchester, N.Hampshire, 10" reflector, x212, S=G, T=E) "After timing sunset on Theophilus & Cyrillus turned to Aris.-Herod. At 0640 saw red- brown color centered at ?=.685, eta=+.390. Glow strongest at largest area at 0640. Decreased in area but not in intensity to 1/2 its size at 0648. At 0650 color gone. Seen again at 0658 but not so pronounced. Faded out at 0700, obs. terminated at 0725. (Haas thinks it might have been atm. dispersion at such low alt. of 12-17 deg)." NASA catalog weight=1. NASA catalog ID #1038. ALPO/BAA weight=1.
On 1981 Dec 16 at UT 17:45 B.W. Chapman, Kingston-Upon-Thames, UK, 11.5cm refractor, seeing II, trasnparency Fair) found the east outer ridge brighter in red - inclined to blue. The ALPO/BAA weight=1.
On 1981 Dec 16 at UT 17:45 B.W. Chapman, Kingston-Upon-Thames, UK, 11.5cm refractor, seeing II, trasnparency Fair) found the west inner ridge lighter in red, and so to the east and south- west floor. The ALPO/BAA weight=1.
On 1964 Jun 30 at UT 05:50-06:10 Bartlett (Baltimore, MD, USA) observed the following in Aristarchus: "Nimbus only -- dark viol. hue. S. part of Aris. floor was granualated & a brown tinge -- changed to yellow & a brown tinge at 0500. First time he ever saw such a change in color. (this obs.listed in 210 & MBMW as June 20, but is a misprint)". The Cameron 1978 catalog ID=828 and weight=4. The ALPO/BAA weight=3.