Limb North? 1881 Jul 04 UT 00:30 Observed by Several observers (Lebanon, CT, USA, naked eye, alt @ 10 deg) "2 pyramidal protruberances on upper limb (dark?). Points were darker than rest of moon's face then slowly faded away (atm ? moon very low)" NASA catalog weight=? NASA catalog ID #223.
On 1982 Dec 22 at UT 19:20-20:10 J-H Robinson (Teighmouth, Devon, UK, 10" reflector, x150, seeing=IV-V) could not distinguish between Messier and Messier A. The tail of these features was very bright - two telescopes were used. Moore (Selsey, UK, 12" reflector, seeing=III) could see Messier A but found Messier itself obscured - just see the west wall and thought that the comet like tail was unusual as it did not appear divided. The Cameron 2006 catalog ID=192 and weight=5. The ALPO/BAA weight=3.
Plato 1887 Feb 01 UT 18:00 Observed by Elger (England) "Ill-defined shadow of peaks of W.border-in contrast to sharpness of mts. outside it. Never seen before. Such phenomena occur on floor, but never on ramparts. (Drawing)." NASA catalog weight=4 (high). NASA catalog ID #254. ALPO/BAA catalog weight=1.
Plato 1916 Jul 8 UT 19:00? Observed by Markov (Russia) "Light on the shadow of the bands at the bottom (similar to #362)" NASA catalog weight=3 (average). NASA catalog ID #364. ALPO/BAA weight=2.
La Hire 1887 Feb 02 UTC 20:00? Observed by Klein (Cologne, Germany, 6" refractor) "Intense yellow streak that cast shadows around neighboring features". NASA catalog weight=4 (good). NASA catalog ID #255.
On 1964 Jan 24 at 20:00? Scarfe (UK) obtained spactra showing luminescence? The Cameron 1978 catalog ID=796 and weight=5. The ALPO/BAA weight=3.
Ross D 1966 Nov 23 UT 04:50-05:02 Observed by Cross (Whittier, CA, USA, 19" reflector, x250 & 2390, S=4-5 (sometimes 6), T=4, excellent contrast) Activity level 5, eastern third of Ross D's circumference possibly partly obscured. ALPO/BAA weight=1.
On 1987 Oct 03 at UT 01:0?0-02:00 R. Manske (Brooklyn, WI, USA, 8" reflector, x226) observed sunlight glinting of the walls in spectacular display of colours. White (even gold) was seen at the centre, and blue on the top most part of the rim. The white (or gold) band was thin in comparison to other bands. The observer suspects that this effect was terrestrial atmosphere related. Cameron 2006 catalog ID=307 and weight= 0. ALPO/BAA weight=1.
Gassendi 1966 Apr 30 UT 21:30-23:28 Observed by Sartory, Ringsdore (England, 8.5" reflector, S=E), Moore, Moseley (Armagh, Northern Ireland, 10" refractor, S=VG), Coralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon Blink) "English moon blink system detected red spots with vis. confirm. Ringsdore says no color but saw obscuration. (LRL 60-in photos showed nothing unusual by my casual inspection). Indep. confirm. (even E. wall was in dark). Corralitos did not confirm by MB." N.B. event had finished by the time Corralitos came on-line. NASA catalog weight=5. NASA catalog ID #931. ALPO/BAA weight=4.
Eratosthenes 1968 Nov 01 UT 01:50-02:06 Observed by Chilton (Hamilton, Canada, 12" reflector, 300x) "Red glow in the crater. Weak blink beyond ESE (IAU?) wall. Visually, area would not focus & gave impression of fog cascading down slope, but no motion was vis. (Moore has misprint in time in his cat. extension -- should be 0150-0206)." NASA catalog weight=3. NASA catalog ID 1106. ALPO/BAA weight=3.
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
Moon 1967 Apr 21 UTC 02:30-09:30 Observed by Dunlap et al (Corralitos Observatory, Organ PAss, NM, USA, 24" reflector + moonblink) "UV excess relative to red & visual images. Greatest (30%) at subsolar pt. nr. limb, grading down to 0% at term. Seen Apr 22 also with a gradient of 10% at term. to 25-30% at subsolar pt. (137 deg long). Filters well balanced. Neg. (normal) on Apr. 20 & 23rd. Bandpass 3700-4900A on image enhancement & filter equip. (coincided with Lyrid meteor shower. They had seen this phenom. many times since. NASA catalog weight=5 (very high). NASA catalog ID #1039.
Gassendi 1976 Oct 04 UT 20:55-20:58 Observed by Robinson (Devon, England) - observer noted that the east outside wall was bright in red and normal in blue. Note that the Moon was 30 deg above the horizon at the time of the observation. The crater returned to normal at 20:58. Also seen by Moore (Selsey, UK) and Foley (Kent, UK). At 21:25-21:50 D. Sims (Dawlish, UK, 25cm reflector, x300, seeing IV and some cloud at times) noticed a possible obscuration over the southern part of Gassendi. He had been observing earlier at 18:40-19:30 but had not detected a TLP in Gassendi then. 22:11UT Robinson notices that the spot outside the east wall is again bright in red., though by 22:25 it had faded and was gone by 22:28UT. The Cameron 1978 catalog further quotes: "Vivid red spots & general red color seen around rim by 2 obs. At 2209h blood red small area was seen. 1 h later the most westerly (IAU?) of the peaks had become hazy white all other areas were sharp. (Indep. confirm.)." Cameron 1978 catalog weight=5 and catalog ID #1454. The ALPO/BAA weight=3.
On 1977 Apr 29 at UT21:40-23:20 an unknown UK observer reported a TLP in Gassendi crater. The following are reports by observers attempting to confirm activity: J.W. Napper (Didcot, UK, 30cm reflector, x287, Wratten 25 and 44a, conditions clear 5+) received a telephone alert call at 22:00 but the sky was cloudy until 22:30. An initial look revealed nothing unusual, then at 22:54 he observed a colour blink just inside the north wall, appearing bright in red and normal in blue or white light. No loss of detail seen and the effect lasted only 2 minutes. A sketch was made. However the observer stresses that the very bad seeing casts some doubt on this observation. L. Fitton observed using a 8.5" reflector, with Moon blink device at x200, seeing was I- II. All areas negative, including Gassindi from 21:40-21:55 and again 22;00-22:25 and finally 22:50-23:30 negative. Mike Brown (Huntington, York, UK, 30cm reflector, x220 and x350, seeing 3-4/5, and transparency 5/5) - observed from 22:00-23:25UT no colour seen, nor obsecuration, all filters negative, despite seeing a lot of fine setail inside this crater.
On 1980 Jul 23 at UT22:00 G.W. Amery (Reading, UK, 8" reflector, x144 and x207, seeing=III-V and transparency=fair) found that the interior shadow was a light grey. BAA TLP coordinator (Foley) suggests that this was light reflecting from the illuminated walls? Cameron 2006 catalog TLP ID=102 and weight=1. ALPO/BAA weight=2.
On 1987 Oct 04 at UT 02:20 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x170, S=8, VG, T=5) obtained the brightest measurement he had ever recorded on the northern rim of Proclus. Brightness 9 and adjacent plain was of brightness 6.5. The Cameron 2006 catalog ID=308 and the weight=3. The ALPO/BAA weight=2.
Gassendi 1966 May 01 UT 19:30-00:21 Observed by Sartory (UK, 8.5" reflector, x500, S=G), Moore, Moseley (Northern Ireland, 12.5" reflector x350, S=E) and by Corralitos Observatory (Organ Pass, NM, USA, 24" reflector + moon blink) "Eng. moonblink & obscuration, also vis. confirm (Moore & Moseley alerted by Sartory. Corralitos MB did not confirm. - but they may not have been observing at the ame time?)." NASA catalog weight=5. NASA catalog ID #932. ALPO/BAA weight=4.
On 1980 Jul 24 at UT02:00 F. Graham (East Pittsburgh, PA, USA, 6" reflector) took some photos (albeit out of focus) that showed a bright spot on the west rim. Cameron comments that this spot was sharp compared to the rest of the photograph, so was probably a photographic artifact. The effect was not seen in the finder scope. The Cameron 2006 catalog ID=103 and weight=2. The ALPO/BAA weight=1.
Aristarchus 1966 May 01 UT 21:55-22:45 Observed by Paterson, Brown, Sartory, Ringsdore (England, 12" reflector x252 for the former and 8.5"? reflector for the latter) "Eng. moon blink system detected red spots with vis. by all but Ringsdore. Brown saw intense white spot NW of crater wall" NASA catalog weight=5. NASA catalog ID 933. ALPO/BAA weight=4.
Gassendi 1939 Sep 25 UT 01:30 Observed by Haas (New Mexico? 12" reflector?) "NE part pf c.p. had I=9.4 comp. with I=6.4 (normal? in # 458. under similar obs. cond. (& phase. thus real diff.)" NASA catalog weight=4 (high). NASA catalog ID #462.
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.
Moon 1967 Apr 22 UT 02:30 Observed by Dunlap et al. (Corralitos Observatory, Organ Pass, NM, USA, 24" reflector) "UV excess as in # 1029. Gradient was 10# at term. to 25-30$ at subsolar pt. (153 deg long)." NASA catalog weight=5 (very high). NASA catalog ID #1031.
On 1980 Jul 24 at UT22:10-22:55 P. Moore (Selsey, UK, 15" reflector, x360 and x400) found an area just south east of the central peak (and upto the wall) to be quite dark in blue light, but normal brightness in red light or in white light. All other features were normal colour- wise. At 22:55UT Tycho was normal again. Cameron 2006 catalog ID=103 and weight=4. ALPO/BAA weight=3.
On 2004 May 02 at UT03:24 M. and L. van Son (Bremerton, WA, May 1st 7:24PM PST) saw a naked eye flash on the Moon. The observers were glancing up at the Moon in daylight when they saw a bright white flash (observer and his wife together) in the upper/mid Mare Serenitatis region, west of the crater Posidonius. "Larger than how Venus appears". "It was a quick flash like white, intense lightning. I'm not sure how to report degrees of arc but if the face we see is 900, and we start from the east then the flash occurred about 225 arc seconds to the west. This was observed by the naked eye, with clear skies between us and the moon." The observers checked for signs of aircraft vapour trails but could not see any. There is a possibility that it could have been sun glint from an Iridium satellite, but this needs to be checked out and usually these last longer than the observed effect. It would be useful to obtain whole Moon images under the same illunination and libration so that we can judge this observation properly. The ALPO/BAA weight=4.
Cobra Head 1966 May 02 UT 20:05 Observed by Sartory (England, 8.5" reflector x400) "Eng. moon blink detected red spots, seen visually also". NASA catalog weight=4 (good). NASA catalog ID #934.
Gassendi 1966 May 02 UT 20:18-20:19 Observed by Sartory (England, 8.5" reflector x400) "Eng. moon blink detected red spots, seen visually also." NASA catalog weight=4 (high). NASA catalog ID #935.
Aristarchus 1982 Jul 03/04 UTC 20:55-01:08 Observed by Foley (Kent, UK, Seeing Antoniadi III) "Brightness variance" - CED 3.6-4.1-4.9. When the crater was dark it had a slate-blue-grey interior. Moore found the crater to be exceptionally bright and this was confirmed by J.D. Cook (CED 3.8-4.1). The Cameron 2006 catalog ID=174 and weight=5. The ALPO/BAA weight=3.
S. of Aristarchus 1951 Sep 13 UTC 14:00? Observed by Osawa (Japan, 6" reflector) "Bownish-red color, blue on NW rim of A." NASA catalog weight=3 (average). NASA catalog ID #546.
On 1982 Jul 03/04 at UT 20:45-01:08 J.D. Cook (Frimley, Surrey, UK) found the Mare Frogoris area, north of Plato was pink at 20:45UT. Saxton found flashes in Mare Frigoris and near thye Alps. The Cameron 2006 catalog ID=174 and the weight=5. The ALPO/BAA weight=2.
Interior craterlets could not be seen and some of the walls and exterior features were fuzzy. ALPO/BAA weight=1.
Cobra Head 1967 Mar 23 UT 18:40-20:47 Observed by Sartory, Moore, Moseley (Farnham, England, 15" reflector (Sartory) seeing very poor & 10" refractor in Armagh, N. Ireland (Moore & Mosely) x360 - seeing Fair to Poor) "Red patch seen intermittently; moon-blink from 1916-2047h. Position agreed with Sartory who alerted them to Aris. area; checks on others were neg." NASA catalog weight=5. NASA catalog ID 1020. Then Aristarchus 1967 Mar 23 UT 18:40-20:30, 21:30 by Marsh and Farrant (Cambridge, England, 8" reflector, x330). "Suspected colour on SW (ast.) wall. Farrant saw color in crater, completely independently, (inform. suggests same phenom. as seen by Moore & Moseley tho they said Cobra head). NASA Catalog weight=5. NASA catalog ID # 1021. ALPO/BAA weight=3.
Gassendi 1967 Mar 23 UTC 18:40-18:50 Observed by Sartory (Farnham, England, 15" reflector) "Heavy blink on inner S. wall. Moved toward N. at 1845, faded at 1850." NASA catalog weight=3 (average). NASA catalog ID #1019.
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.
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.
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.
Gassendi 1976 Oct 04 UT 21:30 P. Moore (Selsey, UK, x400, seeing poor) observed redness in the c.p. area. The ALPO/BAA weight=1.
On 2009 Jan 09 at UT 20:00 P. Brierley (UK) took a CCD image of the Aristarchus area - P.Grego upon examining this comments that he thinks that Schiaparelli crater looked "muted in brightness -- it is normally quite bright to look at". Though Grego comments that it might have something to do with the image processing aplied to the image. The ALPO/BAA weight=1.
On 1964 Jan 27 at 21:00? Scarfe (UK) obtained spactra showing luminescence? The Cameron 1978 catalog ID=797 and weight=5. The ALPO/BAA weight=3.
Eratothenes 1954 Jul 14 UT 04:18-05:00 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, x150, S=4, T=3) "Violet glare on E. wall bright spot (EWBS)" NASA catalog weight=4 (high). NASA catalog ID #565. ALPO /BAA catalog weight=3.
Manilius 1968 Nov 04 UT 00:15-00:30 Observed by Jean et al. (Montreal, Canada, 4" refractor, 6" reflector) "Extremeley bright flash on Men. & Man. each." NASA catalog weight=2 (low). NASA catalog ID #1101.
Menelaus 1968 Nov 04 UT 00:15-00:30 Observed by Jean et al. (Montreal, Canada, 4" refractor, 6" reflector) "Extremeley bright flash on Men. & Man. each." NASA catalog weight=2 (low). NASA catalog ID #1101.
Alphonsus 1966 May 03 UTC 21:30 Observed by Smith (England, 10" reflector) and Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moonblink) "Reddish patches. Not confirmed by Corralitos MB (but in their report they give the feature as Gassendi)." NASA catalog weight=2. NASA catalog ID #936. ALPO/BAA weight=1.
On 1987 Mar 13 at UT 20:52 M. Mobberley (Suffolk, UK, S=VG) obtained some video that shows variation in Aristarchus crater e.g. ä visual oddity in the SE corner" (Foley was interpreting the video). H.Hatfield took some film of the TLP (Unstudied yet). The Cameron 2006 catalog ID= 301 and the weight=5.
On 1987 Mar 13 at UT 20:52 M. Mobberley (Sussex, UK) found that Mons Pico varied in its north east section. This was recorded on video tape. The Cameron 2006 catalog ID=301 and weight=5. The ALPO/BAA weight=2.
Aristarchus. 2024 Mar 23 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
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.
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.
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.
Plato 1967 Apr 24 UT 02:50 K.Simmons (Jacksonville, FL, USA, 10" reflector) observed a large bright (intensity 6.5) oval area on near the central floor. According to Ricker and Kelsey (ALPO selected area coordinators) this is unusual. ALPO/BAA weight=1.
On 1964 Jan 28 at 21:00? Scarfe (UK) obtained spactra showing luminescence? The Cameron 1978 catalog ID=798 and weight=5. The ALPO/BAA weight=3.
On 1969 Sep 25 at 19:00?UT Azeau (Paris, France, 12" reflector, x100, Seeing = good, altitude=20 deg) observed during an eclipse brilliant points for 30 minutes in Ross. Cameron says that the date given originally (16th Sep) was wrong because the age was 5 days and not full Moon. There was however a peumbral eclipse on Sep 25th at 20:10 (max). The Cameron 1978 catalog ID=1201 and weight=1. The ALPO/BAA weight=1.
On 1950 Sep 26 at UT 02:52, 03:10 Reid (Montreal, Canada, 6" reflector x48) and Venor (Montreal, Canada, 12" reflector) observed a brightening, fading, and brightening in Aristarchus crater during totality. There was a phosphorescent glow (date not given but times match this eclipse). cameron suggests that this is a confirmation report. The cameron 1978 catalog ID=538 and weight=5. The ALPO/BAA weight=3.
On 1975 May 25 at UT 05:00-06:00 an unknown US observer took a photograph of a lunar eclipse that shows Aristarchus gleaming white. The Cameron 1978 catalog ID=1406 and weight=5. The ALPO/BAA weight=2.
On 1975 May 25 at UT 05:00-06:00 an unknown US observer took a photograph of a lunar eclipse that shows a bright spot on the east (IAU?) rim of mare Serenitatis (Romer?). The Cameron 1978 catalog ID= 1406 and weight=5. The ALPO/BAA weight=2.
On 1903 Apr 11 at UT 23:44 Zlatinsky (Russia) observed the following for Tycho? or Aristarchus?: "Dur. a lunar eclipse a bright extension of lunar (rays?) in shadow for 30m until mid-ecl." was seen. W.W. Magness (England, UK, 3" refractor) also saw two bright streaks of light, either side of the uneclipsed crsecent of the Moon. The Cameron 1978 catalog ID=217 and weight=2. The ALPO/BAA weight=2.
Aristarchus 1968 Mar 14 UT 01:32-02:06 Observed by Olivarez, Maley, Etheridge (Edinburgh, TX, USA, 17" reflector, x125 + Moon Blink) and Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon Blink) "S=5 (F-G) for the TX observations. "Trident Moon Blink on S. wall creet & c.p. & white spots in crater. No color seen vis. Blink not seen earlier or later. Other craters blinked some but not as strongly. Only Aris. areas blinked when Moon blink was moved around. Observers consider blinks real. Alt. of moon was 50 deg. Drawings. Corralitos say they did not confirm, but they rep't Copernicus, not Aris." NASA catalog weight=5 (very high). NASA catalog ID #1062.
On 1912 Apr 01 at UT 22:00-23:00 LeRoy (France?) during a partial eclipse, observed Tycho to be visible as a very bright spot standing out in the slate grey shadow. Apparently only Tycho was seen during the elipse. The mid eclipse point was at 22:14UT. The Cameron 1978 catalog ID=236 and the weight=1. The ALPO/BAA weight=1.
On 1906 Aug 04 at UT 12:30-13:30 Ward (England?) observed during a lunar eclipse Aristarchus to shine conspicuously. Cameron says that UT time is on the new system (as opposed to local time) with the mid eclipse at 13:00UT. The cameron 1978 catalog ID=325 and the weight=1. The ALPO/BAA weight=1.
1924 Aug 14 UT 20:00 Herodotus observed by Chernov (Russia, 2" refractor?). Weak luminescence seen in mid lunar eclipe. The Cameron 1978 catalog ID=390 and weight=3. The ALPO/BAA weight=2.
On 1978 Sep 16 at UT 18:28-18:57 G.Searle (Concord, Sydney, NSW, Australia, 8" reflector, x100, x160, S=III) observed a bright star-like point on the western (IAU) edge of Mare Tranquilitatis (x100) that appeared unlike any other crater and a check of the location revealed no suitably bright crater in that region (from a map?). Changed to a higher power (x160) and it was still there, but not as conspicuous. Observer thinks that this may have been due to the Moon's low altitiude (16 deg) and the seeing. At 18:35 he compared it to the brilliant crater Proclus and found the star-like point to be 75% of the brightness of Proclus. Ken Wallace (Australia) had been taking photos and observed the object at 17:37.5UT. The object gradually faded over the next 15 minutes and by 18:52UT could only be seen in averted vision at x100. By 18:57UT it was gone. The Cameron 2006 catalog ID=38 and weight=5. The ALPO/BAA weight=2.
On 1942 Aug 26 at UT 04:00 Haas (New Mexico?, USA, 12" reflector?, very clear sky and good seeing) observed (during an lunar eclipse) found an unmistakable lightening of a dark albedo area in Atlas. This area returned to normal darkness during the 4 houres after Atlas re-entered sunlight. Cameron says that the mid eclipse was at 04:00. The Cameron 198 catalog ID=489 and weight=4. The ALPO/BAA weight=2.
On 1978 Sep 16 at UT19:30 R. McKin (Colchester, Essex, UK, 216mm reflector and binoculars) observed that Aristarchus, in the lighter region, during the lunar eclipse, was duller than usual but no less conspicuous than expected. The Cameron 2006 catalog ID=38 and weight=5. The ALPO/BAA weight=1.
On 1964 May 26 UT 04:10-04:35 Bartlett (Baltimore, MD, USA, S=5, T=5). observed that Aristarchus had a strong blue-violet glow on the east wall and EWBS, with a strong violet tinge on the nimbus. Crater was hazy, could not focus it in red, green or blue light. The Cameron 1978 catalog ID= and weight=4. The ALPO/BAA weight=2.
On 1984 Dec 07 at UT 19:30-23:30 M. Mobberley (St Edmunds, UK, seeing=IV-V, transparency=good, spurious colour seen) found 2 bright pathces on the east rim on alternate sides of a bright region. The band from the central 16km wide region was dark on the east side. Foley (Kent, UK, 12"reflector, seeing=II-III) found Aristarchus to be not as bright as normal, apart from the band that Mobberley found (1 hour later). The dark regions were a murky green colour (bright through green, blue and yellow filters and dark through red and orange filters). Cook (Frimley, UK, transparency=excellent, CCD camera used) found a bright "bulge"on the eastern side. Apparently data suggests that the band was brighter in red than in near IR light. Cook's calibrated brightness measurements suggest that there was no change in brightness over the crater with time. Two other bright points were seen: one at the Cobra's Head and another half way between the east rim of Aristarchus and passes Herodotus. Wratten 29 (deep red), Wratten 87 (near IR) and combined Wratten 29 and Wratten 87 were used. In the red Wratten 29 filter the brightness falls at22:20 at Shroters valley and then rises in the bright ray. They return to normal at 22:30UT. There was however a lot of measurement noise from the brightness readings of points B and D. The Cameron 2006 catalog ID=256 and the weight=5. The ALPO/BAA weight=3.
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.
On 1953 Jan 29/30 UT 23:00?, 01:00? Dubois (Floirae, France) observed excess luminescence, in Mare Fecunditatis, between 420nm and 470nm (maximum at 435nm) and between 480nm and 520nm (maximum near 505nm). 20-60% during eclipse at 50' from the centre of the umbra, during a lunar eclipse. The cameron 1978 catalog ID=557 and weight=5. The ALPO/BAA weight=4.
On 1953 Jan 29-30 UT 23:05-01:40 G. Brown (UK?) observed a white patch of light of low brightness was seen to move around the north polar area. Coloured bands were also seen on the Moon.
On 1877 Feb 27 at UT19:19 Prof. Dorna (Turin, Italy) observed a flickering light on the lunar surface during a lunar eclipse. The Cameron 1978 catalog ID=186 and the weight=2. The ALPO/BAA weight=2.
On 1915 Mar 22 at UT 11:30-12:30 Jackson (France?) observed Aristarchus during a total lunar eclipse: "Dur. totality there remained vis. to the NW a red luminous pt. not much larger than Mars & of the same color". (date & time is old system and has been converted by Cameron). The Cameron 1978 catalog ID=343 and the weight=3. The ALPO/BAA weight=3.
On 1895 Mar 10 L. Swift et. al (Lowell Observatory, Flagstaff, AZ, USA) and Elger et al. (England), observed during a total lunar eclipse that Aristarchus was glowing with brilliance never seen before. This attracted everyones attantion. It extended its radiance to adjecent craters (e.g. Herodotus) all throughout totality. At the subsequent eclipse in September 1895 it was seen to be inconspicuous. the Cameron 1978 catalog ID=283 and the weight=5. The ALPO/BAA weight=4.
On 1898 Dec 27 at UT 23:00-00:00 Stuyvaert (France?) found that Aristarchus was brilliant during an eclipse. The Cameron 1978 catalog ID=302 and weight=1. The ALPO/BAA weight=1.
Thaetetus 1902 Oct 16 UT 18:10? Observed by Cherboneaux (Meudon, France, 33" refractor) "Unmistakable white cloud formed close to it." NASA catalogue weight=3. NASA catalogue ID #313. ALPO/BAA weight=2.
On 1917 Jan 08 at UT 07:30-08:30 Ellison (England?) observed a point on the rim of Dionysius that shone like a star for some time after entering the shadow during an eclipse (mid eclipse at 07:42. date given as 1/7/17 19:30-20:30 local time). The Cameron 1978 catalog ID=366 and the weight=2, The ALPO/BAA weight=2.
On 1989 Feb 20 at UT 16:55 G. Kolovos (Thessolonki, Greece) photographed in one photograph (out of 3) during a lunar eclipse, some bright patches below (south?) of the crater that were not in the other photographs (UT16:56:32 or 16:58:56). Foley commented that the photographs were grainy so cannot tell for sure. The Cameron 2006 catalog ID=356 and the weight=1. The ALPO/BAA weight=1.
On 1967 Apr 24 at UT 11:47-12:08 Osawa (Hyogo, Japan, 6" reflector, x50) observed during totality, two luminescent spots (started 20 min after beginning of totality) near Grimaldi. Location not certain because of dimnesa of umbral shdaow and lunar features. (bright spots in Sven Hedin?). Colour was bluish rather than yellowish and magnitude < 9. The Cameron 1978 catalog ID=1035 and weight=3. The ALPO/BAA weight=2.
In 1898 Dec 28 at UT 00:00-01:00 Pickering (Cambridge, Mass, USA, 12" reflector) suspected (or was uncertain) Linne (and also a dark area E of Webb at 61E, 2S) during a lunar eclpise to be have under gone a change in size. Douglass (Arizona? USA) measured Linne as enlarged by 0.5" for about 30 minutes after it re-entered sunlight. Cameron says that this is independent confirmation. The Cameron 1978 catalog ID=303 and the weight=5. The ALPO/BAA weight=3.
In 1898 Dec 28 at UT 00:00-01:00 Pickering (Cambridge, Mass, USA, 12" reflector) suspected (or was uncertain) Linne (and also a dark area E of Webb at 61E, 2S) during a lunar eclpise to be have under gone a change in size. The Cameron 1978 catalog ID=303 and the weight=5. The ALPO/BAA weight=2.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) found that Alphonsus was abnormally bright - as were a few other features. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) found that Aristarchus was abnormally bright - as were a few other features. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) found that Atlas was abnormally bright - as were a few other features. Some flashes were seen in this crater - and a few other features. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) found that Copernicus was abnormally bright - as were a few other features. A flash was seen in this crater at 19:52UT, some flashes were seen in a few other features during the eclipse. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) found that Endymion was abnormally bright - as were a few other features. Some flashes were seen in this crater - and a few other features. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) found that Herodotus was abnormally bright - as were a few other features. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
On 1985 May 04/05 at UT19:52-00:30 during the lunar eclipse V.V. Kurchin (Volgorad, Russia, 2" reflector, x88) Some flashes were seen in Mare Tranquilitatis - and a few other features. Cameron 2006 catalog ID=270 and weight=2. ALPO/BAA weight =1.
In 1949 Apr 13 at UT 05:00 Vreeland and others (Mill Valley, CA, USA, 4.5" refractor) observed in Aristarchus a brilliant star-like point just after 3rd contact. This was not seen before or during totality. He thinks that it was a high peak catching the sunlight before the rzst of the surface. It remained bright but larger as the sun hit it. The Cameron 1978 catalog ID=517 and the weight=1.
In 1790 Oct 22/23 at UT 23:00-02:00 W. Herschel (Windsor, UK) observed during a toal lunar eclipse at least 200 small, round (spots?). The Cameron 1978 catalog ID=69 amd weight=4. The ALPO/BAA weight=1.
On 1910 Nov 16/17 UT 22:50-00:10 Albright (Edge(b?)aston, England, UK) observed in Stofler crater "A luminous pt. on Moon dur. ecl. (mid-ecl 0025) Others saw a meteor on moon from widely seperated places". The Cameron 1978 catalog ID=333 and the weight=3. The ALPO/BAA weight=3.
On 1964 Dec 19 at UT 03:28-04:28 Sunduleak and Stock (Cerro-Tololo, Chile, 16" reflector) using photoelectric photometry during a lunar eclipse, observed on the northern edge of Mare Numbium, and south of Copernicus (20W, 0N), a strong anomalous enhancement of radiation (confirmation according to Cameron). On 1964 Dec 19 at UT 02:35 S.J. Hill et al (Kitt Peak??) observed during a lunar eclipse an anomolous bright area (location not given). Cameron says that this is an independent confirmation of Sanduleak and Stock's TLP report. The Cameron 1978 catalog ID=868 and 569 and weight=5. The ALPO/BAA weight=4.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th. Cloud-like effect where light had been (on 8th). Cameron 1978 catalog TLP ID No.=139 and weight=3. ALPO/BAA weight=2.
On 1905 Aug 15 at UT 03:30 Rey (Marseilles, France) observed Tycho during a lunar eclipse to be visible, indeed it was described as brilliant during the eclipse (mid eclipse 03:31UT). The Cameron 1978 catalog ID=322 and weight=1. The ALPO/BAA weight=1.
Proclus 1958 Aug 30 UT 06:30-06:45 Observed by Bartlett (Baltimore, MD, USA, 4" reflector, x240, S=6, T=5) "Proc. Q. a bright spot on NE rim apparently a crater presented a very abnormal aspect. Extraordinarily large & at least 9 deg bright -- like EWBS on Aris. This spot is subject to large unexplained variations. At 97 deg col. in July, Q was also 9 deg bright but very small. At col.96 deg, 5 in May '58, col.99deg in Feb.'50, & 96 deg in Nov. '55 it was not seen at all. Assoc. with tonite was a distinct blue glare on NE rim, extending for short dist. & @ 2x as far as S." NASA catalog weight=4 (high). NASA catalog ID #894.
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.
Aristarchus 1970 Jan 23 UT 07:00? Observed by Thomas, Rogers, Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon blink) "Bluing around the crater -- vis. in monitor but not photographed due to clouds" NASA catalog weight=4 (high). NASA catalog ID #1233
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.
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.
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 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.
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 1996 Jul 31 at 22:40UT P. Moore (Selsey, UK, 15" reflector, x300) noticed a lack of detail in the Cape Agarum area - he would normally have expected to have seen some craterlets. However he would not rate this observation much because the seeing was only III and he does not think that it was an obscuration. However just in case he wanted to record this report in the archives. ALPO/BAA weight=1.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th. Cloud-like effect where light had been (on 8th). Cameron 1978 catalog TLP ID No.=139 and weight=3.
In 1954 Jul 17 at UT06:50-07:15 Bartlett (Baltimore, MD, USA, S= 5, T=5-1) observed near Aristarchus: "Pale violet tint on surface NE of crater, no color elsewhere". The Cameron 1978 catalog ID=568 and weight=4. The ALPO/BAA weight=1.
Aristarchus 1970 Jan 24 UT 07:00? Observed by Thomas, Rogers, Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon blink) "Bluing around the crater -- vis. in monitor but not photographe due to clouds" NASA catalog weight=4 (high). NASA catalog ID #1233
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.
(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.
Aristarchus 1976 Aug 12 UT 07:30 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector 45-225x, S=6=3, T=5) "Nimbus around c.p.=2deg, S.floor=6deg & was red; rest of floor=8deg. This is only tint in Aris.). Tonite saw a pale red glow suffasing the S. region of the crater. Bright blue radiance (gas?) on ENE wall. Viol. radiance on plateau m gone tonite. Red glow on 13th & the region was yellow- brown." NASA catalog weight=4 (high). NASA catalog ID #1442.
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 1986 Oct 20 at UT 03:30 Slager (Grand Rapids, MI, USA) detected colour in Aristarchus, red on the south wall and a blue "washed out gun metal colour on the "whole"inner north wall. A 2nd observer confirmed the observation. Cameron suspects that this is simply spectral dispersion. The Cameron 2006 catalog ID=288 and the weight=1. The 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 Apr 17 UT 22:00? Observed by Gledhill? (Halifax, England, 9" refractor) "Group 1 again in illum. as in Aug., Sep. 1869 observations." NASA catalog weight=2 (low). NASA catalog ID #166.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th. Cloud-like effect where light had been (on 8th). Cameron 1978 catalog TLP ID No.=139 and weight=3.
Daniell 1894 Feb 23 UT 00:00? Observed by Krieger (Germany) "Strong, brownish-red coppery hue." NASA catalog weight=4 and catalog ID #281. ALPO/BAA weight=3.
1894 Feb 23 UT 00:00(?) Posidonius N. Wall observed by Krieger (Germany) "Strong, brownish-red coppery hue." NASA catalog weight=4 and catalog ID #281. ALPO/BAA weight=3.
Furnerius A 1983 Jan 02 UT 00:10 H. Hill (UK) observed that this crater was piercingly bright, which he thought was a bit unusual. ALPO/BAA weight=1.
Cleomedes 1991 Dec 23 UTC 22:50 Observed by Mizon (Colehill, Dorset, UK, 8" f/6 reflector x216) "Oval or pear-shaped ashy glow visible for 2 min, then vanished quite suddenly" - Ref. personal communication received by BAA Lunar Section.
Peirce A (Swift=IAU name?) 1937 Dec 23 UTC 22:00 Observed by Wilkins (England, UK, 12.5" reflector) "Obscuration on floor if crater. Crater invis. (similar to #394, 396)." NASA catalog weight=4 (high). NASA catalog ID #412.
Aristarchus 1970 Jan 25 UT 07:00? Observed by Thomas, Rogers, Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon blink) "Bluing around the crater -- vis. in monitor but not photographe due to clouds" NASA catalog weight=4 (high). NASA catalog ID #1233
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 2005 Oct 21 at UT 13:07-14:27 R. Gray (Winnemucca, NV, USA, 15cm F/9 refractor, x228, seeing 4-5, transparency 5-6) observed a possible TLP in Macrobius. His report is as follows: "Blinked Macrobius with Wratten Filters Blue 38A and Red 29. Macrobius became almost invisible through the Blue 38A and essentially the same as in white light through the Red 29. The interior of the crater was completely in shadow. The only part of the east wall that was visible was an apparent high point still in the sun and seen as a bright point of light. This faded into darkness before 13:56UT. No sign of any illumination of the east wall crater interior or the interior of the west wall was seen during the observation period. The outer west wall was a rough looking, complicated mix of deep shadow and illuminated sunlit terrain." The observer concluded that there was not a TLP - although he did get a filter reaction, this may have been due to the different densities of the filters? ALPO/BAA weight=2.
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.
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 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.
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.
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.
Fracastorius 2022 Apr 21 UT 01:35-02:12 A. Amorim (Brazil - 90mm f/10 refractor, 25 & 10mm eyepieces ) observed visually a little bright spot near the centre of the otherwise completely shadow filled crater. The bright spot was surrounded by a coma effect. Clouds intervened but by 02:12 the spot was no longer visible, just a thin patch of light close to the crater's centre. Observations started when the Moon's altitude was 15 deg and ended when it was 23 deg above the horizon. ALPO/BAA weight=1.
On 1991 Jul 31 at UT 07:50 D. Louderback (South Bend, WA, USA, 3" refractor) observed that the south floor of Aristarchus was wellow - "almost gold, spilled over S wall on ray toward Herodotus". Cameron comments that Bartlett often reported a yellow floor but not a spill of the colour over to the external ray. Cameron also comments that Louderback's refractor would refract more in blue light than in yellow, therefore she did not think that it was due to chromatic aberation. The Cameron 2006 catalog ID=431 and the weight=3. The ALPO/BAA weight=2.
On 1991 Jul 31 at UT 07:50 D. Louderback (South Bend, WA, USA, 3" refractor) found that all of Mons Piton was "unusually dark". Points D, C (E and S resp), usually brightest points, but this time were not bright. "Whole mt was as dark as W wall usually is at this time. In violet filter Piton disappeared completely, but was a little brighter in red filter and points D & G showed. Color not seen by eye. No albedo measured. Suggests red event." Cameron rules out chromatic aberation from Louderback's refractor. The Cameron 2006 catalog ID=431 and the weight=3. The ALPO/BAA weight=1.
Plato 1975 Jun 28/29 UT 23:00-01:20. Foley (Wilmington, UK, 12" reflector, seeing, III, good clarity transparency). At 23:00, 00:30, and 01:15 blue was seen on the inner wall:floor southern boundary, and red on the corresponding northern floor:wall boundary. However by 01:20, blue was now on the S-NW floor:wall boundary, and red on the NE-SE floor:wall boundary. Atmospheric spectral dispersion existed in many regions, but did not change like the colours in Plato. Similar appearance craters such as Grimaldi, Schickard, and Riccioli, were checked for a similar change in colour, but no change was noticed in these. ALPO/BAA weight=1.
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.
Callipus 1952 Sep 09 UT 21:00-21:20 Observed by Moore (England) "Hazy broad line of light seen fr. NW wall to SE wall over shad. floor. Gone next nite at 0120. He gave low wt. to obs. (sunlight between peaks?)." NASA catalog weight=1. NASA catalog ID #553. ALPO/BAA weight=1.
Plato 1975 Jun 29/30 UT 23:05-00:30. Foley (Wilmington, UK, 12" reflector, seeing, III, good clarity transparency). At 23:05, blue was seen on the inner wall:floor southern boundary, and red on the corresponding northern floor:wall boundary. However by 00:30, blue was now on the W floor:wall boundary, and red on the E floor:wall boundary. Atmospheric spectral dispersion existed in many regions, but did not change like the colours in Plato. Similar appearance craters such as Grimaldi, Schickard, and Riccioli, were checked for a similar change in colour, but no change was noticed in these. ALPO/BAA weight=1.
Aristarchus 2004 Dec 03 UT 00:00-01:00 Observed by Brook (Plymouth, England, 60mm OG x120) "Fluctuation in the brightness in Aristarchus still present but less pronounced than yesterday. Also saw the bright short ray on the opposite side to the main ray in Aristarchus that Amato saw yesterday - but this may be normal?" BAA Lunar Section report.
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.
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.
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.
M.C. Cook (Frimley, UK, seeing=III-II) noticed that the crater had a blue/green colour and that this varied, filling a large circular patch, brightly illuminating to the ESE-SSE (IAU?) spilling over the wall and the rim. Shadows inside the crater were large and elongated. The filter response was greater in the blue than through a yellow or red Microfiche. Spurious colour was noticed elsewhere but not in Aristarchus. Cameron 2006 extension catalog ID=313 and weight=3. 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.
Eratosthenes 1976 Jun 20 UT 07:57 Observed by Bartlett (Baltimore, MD, USA, 4.5" refractor, 40-450x, S=6.5, T=4-3) "Floor covered with shadow & c.p. seen as 5deg bright spot. Another minute spot 5deg bright on SE floor in shadow. (only low hills on floor in SE. spot on terrace?" NASA catalog weight=4 (high). NASA catalog ID 1436.
On 2012 Oct 08 UT12:00 C. Hastorf (Chuck's Bobcat, AZ, USA, 5" SCT, seeing 3.5-4 out of 5). Strange lightness seen on shadowed floor of Plato. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Condorcet (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Delambra (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Macrobius (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Manilius (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Mare Crisium (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Maskelyne A (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Menelaus (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Proclus (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Promontorium Agarum (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5" reflector, x80) found that Tisserand (and other features - 12 in total) were blue in colour - some had flashes that expanded from the centres (at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
Grimaldi 1998 Mar 22 UT05:15-06:00 S. Beaumont (Windermere, UK, 127mm rich field refractor, seeing III, transparency Good) observed that the northern half of Grimaldi seemed much lighter than the southern half. She comments that she has seen this before in last quarter phases, but it was really quite marked how lighter the northern half was on this occasion. The ALPO/BAA weight=1.
Plato 1976 Sep 20 UT 20:25 Observed by J.H-Robinson (Teignmouth, UK, 26cm Newtonian, Wratten 25 and 44a filters, x200, seeing unsteady, Moon low). Light areas in Plato were clearer in red than in blue light. ALPO/BAA weight=1.