Gassendi 1966 May 30 UT 20:32-20:59 Observed by Sartory (England, 8.5" reflector + filters) "Orange patch & obscuration -- detected by Eng. moon blink system. Color seen visually."NASA catalog weight=4 (good). NASA catalog ID #941.
On 1982 Aug 01 at 00:00-01:00 K. Marshall (Medellin, Columbia, 12" reflector, seeing I-II) noted shading on the east floor of Plato that was apparently lighter than the rest of the floor and this was seen at both low and high magnifications. Foley notes that this was unusual. There were three craterlets visible on the floor - the central one was the brightest. Cameron 1978 catalog ID=178 and weight=3. ALPO/BAA weight=1.
Colour seen between Aristarchus and Herodotus by P. Moore and G. North. ALPO/BAA weight=3.
On 1975 Mar 28 at UT22:30-23:42 P.W. Foley (Kent, UK) observed orange/red in Aristarchus. The ALPO/BAA weight=1.
On 1980 Aug 30? at UT 08:00? D. Louderback (South bend, WA, USA, 8" refletor x140) found the north wall to be very bright in red light (this is not normal as it is usually bright in blue - according to Cameron). The brightness was 9.7 (red) and 9 (blue no filter)compared to Eimmart's 8.7. Louderback thought that they observed an oranfe- yellow tinge. Cameron 2006 catalog ID=108 and weight=3.
Aristarchus 1965 Nov 15 UTC 05:55-10:00 Observed by Hall, Johnson, Nordling (Pt. Tobacco, MD, USA, 16" reflector x400), Genatt (Greenbelt, MD, USA, 6" refractor, x50 & 20" reflector x400), Wagmann (Pittsburgh, PA, 30" refractor). "Color on c.p. detected with Trident MB, not seen vis. at Port Tobacco. Network alerted & 6 responded. 4 did not see anything unusual; 2 others did & saw red on c.p. in 6-in refr.. but not in 20-in refl. at 400x; other saw indistinctness. Port Tobacco obs. took 5 rolls of film in blue & red & neutral. Phenom. not detectable on them, but focus was poor. Blue image had most detail, whereas would expect red or neutral to. Phenom. still present at dawn in Moon Blink device." NASA catalog weight=5. NASA catalog ID #914. ALPO/BAA weight=4.
On 1982 Aug 11 at UT03:30-04:15 Mobberley (Suffolk, UK) obtained a photograph and made a sketch that revealed a needle-like shadow from the west wall to near by the central craterlet - the latter was quite clearly visible. What were not visible were the other four craterlets. The Cameron 2006 catalog ID=183 and weight=4. The ALPO/BAA weight=2.
Alphonsus 1958 Nov 03 UT 02:30-03:30 Observed by Kozyrev, Ezerski (Pulkova Observatory, Crimea, Ukraine, 50" reflector, 23A/mm spectrograph) UT03:00-03:30 "C.p. redder than rest; emiss. spect. in 4756A, 4100, 3950A (C3), 5165, 5130A (Swann bands) 3 spect. over 3.5 h. Image of c.p. weakened in viol. light on spect. Noted visual decrease in brightness & reddish glow. Decrease in bright, & unnusual white color(at 0300h- 0330h). Sudden decrease in vis. bright. Spect. started -- gave norm. Spect. (0330-0340h), conditions almost identical to Alter's on Oct. 26, 1956. Nothing seen on Nov. 2-3" NASA catalog weight=5. NASA catalog ID #703. ALPO/BAA weight=5.
On 1982 Nov 11 at UT 17:00-17:30 E.V. Arsyukhin (Moscow, Russia, 3" reflector) saw three stationary dark spots suddenly appear in Mare Crisium. There was one on the north and the other two in the south west to south. They lasted approximately 30 minutes and then promptly vanished. Cameron says that it cannot be this date because the Moon was not visible at 17:00UT Suggests 05:00-05:30UT? The Cameron 2006 catalog ID ID=189 and weight=3. The ALPO/BAA weight=2.
On 1969 May 20 at UT 03:18-04:27 Cross (Las Cruces, NM, USA 6" refractor), Olivarez (Spain?), Kohlenberger, Gibson, Miller, Duarte and Harris (CA, USA) observed brightenings, pulsations, scintillations in Aristarchus crater. Cameron says independent confirmation seen by 4 observers, 1-2 magnitude increases, ranged between 1-30sec. Most active period was 03:18-03:20UT, 04:17-04:27UT (Las Cruces). Calkins (West Covins, CA, USA) UT 03:40-04:25 saw one major brightening up 2 magnitudes above steady state lasting 0.2 to 1.5 sec and another slow brightening lasting 5-10 seconds. Kelsey (CA, USA) saw at 03:43-03:48UT some brightenings. These observations were made during the Apollo 10 watch. The Cameron 1978 catalog ID=1127 and 1128 and weight=5. The ALPO/BAA weight=4.
Piton 1970 Apr 13 UT 22:06-01:30 Observed by Cutts (Waverton, UK) "Peak was bright (Apollo 13 watch. Shining in dark?)" NASA catalog weight=1. NASA catalog ID #1247. Similar illumination shown on Hatfield Plate 2E(left). ALPO/BAA weight=1.
Plato 1966 Jun 27 UT 21:40-21:55 Observed by Robinson (Teignmouth, England, 10.5" reflector) and Sartory (England, 8.5" reflector + Moon blink) "Color (red?) on SE wall detected by Eng. moon blink sys. (confirm)." NASA catalog weight=5 (very high). NASA catalog ID 949.