Southern cusp obseved by H.Hill (UK) on 1985 Sep 12 UT0435-0455. Solar Selenographic colongitude=241.3. Observer saw an extremely attenuated cusp extending well beyonf the Moon's prime meridian. There were also dusky ill-defined stips along the Earthlit limb nearby. Note that this is almost certianly not a TLP but is worth checking out if the libration and solar colongitude is similar, just to verify that this is what the Moon normally looks like. ALPO/BAA weight=1.
Plato 1964 Nov 14 UT 01:00? Observed by Bartlett (Baltimore, MD, USA, 4" refractor?) "Peak on E. wall brilliant white, strong blue band at inner base; on S. wall was a small, bright red spot." NASA catalog weight=4. NASA catalog ID #864. ALPO/BAA weight=3.
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.
Scarcely a trace of nebulae tonight. As long as to June 10 at 2000UT? A little blackness remained. (P. Moore thinks it was a LTP, WSC it was a permanent feature?) Drawing. Seen by Nevelius Emmett, J. Boroughbridge, England. The 2006 Extension catalog by Cameron assigns an ID No. of 4 and a weight of 1. The ALPO/BAA weight=1.
Aristarchus 1963 Oct 30 UT 01:50-02:15 Observed by Greenacre and Barr (Flagstaff, AZ, USA, 24" Clark Refractor) observed 2 ruby red spots - one just to the SW of the cobra's Head and the other on a highland area east of Vallis Schroteri. A pink colour formed coverting the SW rim of Aristarchus. Effects present with or without Yellow Wratten 15 filer. Similar effects checked for elsewhere on other craters but not seen. So presumed not to have been due to chromatic aberation or astmospheric dispersion. Effecta not seen in 12" refractor, but this may have been a resolution issue. The NASA catalog ID No. is #778. The NASA catalog weight is 5 (highly reliable). ALPO/BAA weight=4.
Aristarchus 1963 Oct 30 UT 05:00-08:00 Observed by Greenacre and Barr (Flagstaff, AZ, USA, 24" Clark Refractor) a violet or purple-blue colour formed beyond the NW of Aristarchus. ALPO/BAA weight=2. This followed an earlier observation that night of two red spots and a pink glow.
On 1981 Oct 12 at UT 00:00?(?) B.W. Chapman (12cm refractor, Seeing II, transparency poor, Kingston-Upon-Thames, UK) found that Mons Pico was brighter in red light than in blue. Aristarchus for comparison was the same brightness in both filters. ALPO/BAA weight=1.
Aristarchus-Herodotus 1964 Sep 20 UTC 04:15-04:50 - Observers: Crowe & Cross (Whittier, CA, USA, 19" reflector x390) "Several red spots in area between the 2 craters. No change in phenom. so stopped observing" NASA catalog weight=5 (very good). NASA catalog ID #849.
Aristarchus 1959 Jan 23 UT 06:20 - Observer: Alter (Mt Wilson, CA, 60" reflector x700) "Brilliant blue in interior later turning white. Photos obtained. (MBMW has this entry twice for diff. dates because source gave UT date as 23rd.)" NASA catalog weight=5. NASA catalog ID = #712. ALPO/BAA weight=4.
nr.Ross D 1964 Sep 20 UTC 04:55-05:00 - Observers: Harris & Cross (Whittler, CA, USA, 19" reflector x250) "Opaque, outgassing, obscuration" NASA catalog weight=5 (very high). NASA catalog ID #850.
On 1976 Feb 14 at UT23:35-0053 LeCroy (Springfield, VA, USA, 4.5" reflector, x75, S=6 and T=4.5). A blue haze was seen on the east side of Aristarchus and red haze on the west side. At 00:00UT details were more clear and at 00:24UT Aristarchus and Herodotus, were seperated. At 00:34UT colours were gone. At 00:35UT blue was on Aristarchus and the area was bright, but was black in a red filter. At 00:53UT the features were clear and the colour gone and the brightness had decreased to 9. Cameron comments that the colour was not due to temp. inversion because of being dark in the red filter, implying a medium). The Cameron 1978 catalog TLP ID is 1428 and the weight=1. This is an ALPO report. The ALPO/BAA weight=1.
On 1977 Jan 04 at 16:25-17:30 Kozyrev (Pulkovo Observatory, Crimea, Ukraine, Soview Union) "Observed unusual processes on moon. Activity in progress at beginning of obs. Still vis. at 1710, gone at 1730h. Latharn & colleagues found no seismic activity at that timeunder a quick look". The Cameron 1978 catalog weight=4 and ID=1460. The ALPO/BAA weight=2.
Galvani B: On 2019 Sep 13 UT 23:26 K. Kilburn (Manchester, UK, BAA - ED80 refractor, x2 Barlow, Canon 550 DSLR) took a sequence of images from 23:25-23:27 UT. On one of the images, taken at 23:26UT there is a blue/green spot on Galvani B. There is a hint of a possible fade of the spot in the other images but this is not conclussive. Te spot might just be a cosmic ray event or a bright part of the crater rim coming into view under brief exceptional seeing for one frame only. We need simlar illumination, and if possible topocentric libtation images, under different atmospheric conditions to confirm this. It would be great if the images were in colour too. The ALPO/BAA weight=1.
On 1901? Nov 25/25 at 23:00UT Besanceas (France?) observed: "During lun. ecl. (mid-ecl. at 0118 on 26th) a bright area seen on moon. Another(?) obser. saw an obj. like a fiery comet leave the moon! (Date given by Midllehurst was 1900 but must be wrong-not FM then. FM in 1900 but no ecl. Partial ecl. on 10/27/01 at 0315. Ref. by M is wrong = 157)". The Cameron 1978 catalog ID=310 and weight=1. The ALPO/BAA weight=1.
On 1897 Jun 14 at UT 23:00 Pickering (Cambridge, Mass. USA) observed in "Schroter's valley and the vicinity variations in vapor colum. Break in col. toward F and eruption of crater D. 3.4 d after sunrise". The Cameron 1978 catalog ID=389 and the weight=3. The ALPO/BAA weight=2.
On 1891 Sep 18 at UT 21:00 Pickering, based at Arequipa, Peru, and using a 12" reflector, saw in Schroter's Valley and the vicinity "Varitions in vapor column. Drawings. Time estimated from given colongitude)." Cameron 1978 catalog ID=271 and weight=1. ALPO/BAA weight=2.
Plato 1921 Nov 15? UT 20:00? Observed by Chernov (Russia, 2" refractor x94) "Temporary increase in brightness of the light band at bottom noted close to FM. Crater actively noted in Oct. 10." NASA catalog weight=1 (very low). NASA catalog ID #384.
E. of Pytheas in M. Imbrium 1970 Jun 19/20 UTC 23:54-00:23 Observed by Sendor-Mark (Szolnok, Hungary, 4" reflector x 200) "Bright spot nr. Timocharis (on E. Copernican ray?) decreased slowly for next 8min 19 sec. At 00:11:05 flared up. After 2nd decreasing, brightened again at 00:25:54 after which no variablity. Event was star-like < 3km. No events on 21st." NASA catalog weight=2 (poor). NASA catalog ID=#1262.
Lichtenberg 1955 May 07/08 UT 23:00-01:00 Observer: Jean Nicolini (Brazil). Ref: Azevedo (1962) NASA catalog weight=1, NASA catalog ID 590. ALPO/BAA weight=1.
On 1975 Dec 19 at UT22:45 P.W. Foley (Kent, UK) suspected an anomaly in Aristarchus. Cameron 1978 catalog weight=1424 and weight=1. ALPO/BAA weight=1.
In 1942 Feb 02 at UT 18:20-19:15 Y.W.I. Fisher (Brussels, Belgium) a whitish glow near the Earthlit limb, near to Kepler (37W, 7N). The duration of the event was 55 min. The Cameron 1978 catalog ID=488 and weight=2. The ALPO/BAA weight=1. Ref. p220-221 IAU Symposium No. 14 - The Moon.
Plato - Hibbard (Orlando, FL, USA, 2.5 inch refractor, NASA catalog quotes: "Whole crater had a bluish tinge, (photos obtained but out-of-focus -- chrom. aberr?" - NASA catalog weight=1, NASA catalog ID 903. ALPO/BAA weight=1.
Aristarchus (Bartlett, 1965 Oct 12 UTC 02:15-20:25, 5 inch reflector x280) - NASA catalog quotes "Nimbus was only a dark violet hue". NASA catalog weight=4. NASA catalog ID #904. ALPO/BAA weight=1.
Gassendi 1967 Sep 20 UT 21:11-21:46 Observer: Moore & Moseley (Armagh, N.Ireland, 10" refractor, x254) "Faint blink & red glow SSW of c.p. at 2111h. At 2118 was fading & moving slightly N. Gone at 2110. At 2122h suspected blink close to SW of c.p. Gone at 2123h. At 2143 both obs. suspected a faint blink someway W of c.p. Lasted only 2.5m. Other craters examined with no LTP. Observers are dubious of regularity of phenom". NASA catalog weight=2. NASA catalog ID #1048. ALPO/BAA weight=1.
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.
On 1993 Dec 31 at UT 05:00-07:40 S. Beaumont (Cambridge, UK, 12" reflector) "saw a patch of hazy light to NW (from c.p. alpha) at 0550 craters B & J shadow of alpha had not reached E wall yet, but at 0536 it did. Alpha > at 0550. Craters B & J to SE had faded, vanished at 0630. Hazy patch remained around peak, alpha low mainly to NE like a comet's tail. Slightly reddish fringe to E wall. (shown in sketch)". The above has been quoted in full from the Cmeron catalog because the catalog desription is slightly ambiguous and any attempted summary might make the description more unreliable. The cameron 2006 catalog ID=470 and the weight=3. The ALPO/BAA weight=2.
In 1790 Mar 03 at 22:00 UT Wilkins (England?) observed Herschel's 1787 lumninous point (Aristarchus) in the same place. The Cameron 1978 catalog ID=67 and weight=4. The ALPO/BAA weight=2.
Atlas 1969 Aug 01 UT 03:36-04:00 Observed by Pither (Nottinghamshire, England) NASA catalog reports: "Eng. moon blink in crater at 0336h close to E. wall, NE of central feature. Oval in shape & dirty brownish color & hazy. Started fading at 0345h but may have been due to dawn, Neg results on other features, (Apollo 11 watch)." 12" x450 reflector used. NASA catalog weight=3. NASA catalog TLP ID No. #1195. ALPO/BAA weight=3.
Gassendi 1966 Sep 02 UT 22:55-02:55 Observed by Moseley, Moore, Gill, Harris, Frost and Hall (Armagh, Northern Ireland, 10" refractor + Moon Blink, Seeing=fair) and by Cave (England using a Moon blink) "Eng. Moonblink sys. detected red glows on c.p. & around it; seen vis. too. (Corralitos obs.at the time? did not see anything?)" Note that the Arnagh observers were all using the same telesope, The observing times of M. Cave are not given but they saw a blink SW of the central peaks. NASA catalog ID 972. NASA catalog weight=5. ALPO/BAA weight=3.
Aristarchus 1969 Aug 01 UTC 04:40-05:38 Observed by C. Pamplona e J. Barbosa(Fortaleza, Brazil using 12" x235 and 5" x100 reflectors) - NASA catalog reports: "Enhanced area in SE wall, no pulsation, no color. Usually NW wall is brightest. After 0538h NW region was brightest again, (Apollo 11 watch, indep. confirm. ?)" NASA catalog weight=3. NASA catalog TLP ID No. # 1196. ALPO/BAA weight=2.
Gassendi 1966 Sep 03 UT 01:11-01:46 Observers: Moore (Armagh, N. Ireland, 5 & 12" reflectors), Moseley (Armagh, N. Ireland, 10" refractor), Corralitos Observatory (B.Middlehurst, Organ Pass, NM, USA, 24" reflector), Cave , Gill (UK? 6" reflector x365), "Eng. moon blink sys. detected red glows on c.p. & round it. Independently seen by Cave. Not confirmed by Corralitos M.B." NASA catalog ID#975, NASA weight=5. ALPO/BAA weight=4.
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.
Alphonsus 1958 Nov 29 UTC 22:00? Observed by Wilkins (Kent, UK, 15" reflector) "Near site of Kozyrev's outbreak saw a circular patch, black pit center, & red, round masses all around it." NASA catalog weight=4. NASA catalog ID #708.ALPO/BAA weight=3.
On 1980 Sep 28 at UT05:00-07:00 W. Steed (Ocean City, MD, USA, 3" refractor, x45 and x220) detected a "tower-like" feature on the east rim of Mouchez crater, and appeared about 2-3x higher than other mountains nearby. The Cameron 2006 catalog ID=112 and the weight=1. The ALPO/BAA weight=1.
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.
Gassendi 1971 Jun 13 UT 07:22-08:05 Observed by Raimundo Nonato da Silva (Parnaiba, Brazil, 9.5" reflector, x180) "At 0755h variation on W.(IAU?) edge of crater "brightness seemed to become a little darker" as it was gugacious (foggy?), Was not sure it was a LTP. Other features & it were normal from 0658- 0755h". NASA catalog weight=1. NASA catalog ID 1295. ALPO/BAA weight=1.
1964 Jul 29 UT 05:40-06:06 Observed by Bartlett (Baltimore, MD, USA) "Nimbus only -- dark viol. hue. S.floor granulated, dull -- 6 bright. Faint yellow-brown tinge. Rest of crater 8." S=6, T=3- 2. NASA catalog weight=4. NASA catalog ID #838. ALPO/BAA weight=2.
Aristarchus 1978 Nov 20 UTC 03:00-05:00 Observed by Foley (Kent, UK, no spurious colour, Seeing Antoniadi II and transparency good.) - colouration seen: very bright violet spot on the north west interior. No brightness variations seen. The Cameron 2006 catalog ID=44 and weight=. The ALPO/BAA weight=3. ALPO/BAA weight=2.
Triensecker Rille 1915 Jul 03 UTC 00:00? Observed by Markov (Russia) "Several spots changed their shapes compared with Gordeenko's depiction on 5/23/12 see #339; which cannot be explained by light variations." NASA catalog weight=3. NASA catalog ID #356.
Lichtenberg area 1940 Oct 22 UT 07:12 Observed by Barcroft (Madera, CA, USA, 6" reflector) "Only slightly redish color this nite, comp. with previous nites (see #'s 467 & 477)" NASA catalog weight=3. NASA catalog ID #478. ALPO/BAA weight=1.
On 1995 Apr 03 at UT 03:30 Unknown Observer (Transparency good) saw a darkening in the Cobra Head, Schroter's valley area of Aristarchus - the best example that he had ever seen. The Cameron 2006 catalog ID=474 and the weight=3. The ALPO/BAA weight=. Reference - BAA Lunar Section circular 1995 Oct, p125 and personal communication from David Darling to the BAA on 6/6/1995. Note it is uncertain whether this refers to the Clementine mission or to somebody who observed during the Clementine mission, or somebody with that surname. Anyway if it is the Clementine mission then the date is wrong - possibly the year should have been 1994? The Cameron catalogue does actually mention a TIFF on Clementine mission? The Cameron 2006 catalog ID=474 and the weight=3. I am assuming that the year should be 1994 and not 1995? The ALPO/BAA catalog weight=1 until we can find out what the correct date is?
Aristarchus 1964 Jul 31 UT 02:00-02:23 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180) "Deep ravine on E.glacis interrupted midway of its length by apparent break just below rim of craterlet assoc. with EWBS. Normally, ravine is seen continuous. Probable obscuration at pt, of break." S=7, T=5. NASA catalog weight=4. NASA catalog ID #834. ALPO/BAA weight=2.
Triesnecker 1966 Jul 10 UTC 02:00-02:15 Observed by Allen (Cambridge, England) and other observations by Corralitos Observatory (Organ Pass, NM, USA). Described in NASA catalog as: "Faint illum. of a ridge in shadow; faded quickly (in BAA judged dubious). Not confirmed by Corralitos MB." 12?" refractor (x280) used at Cambridge and at Corralitos 24" reflector. NASA catalog weight=1 (very low). NASA catalog TLP ID No. #956.
In 1930 Sep 15 at UT00:00 Vasilev (Russia) observed the following in Alphonsus crater: "During SS there was a triangular spot nr. W. wall until merging with shad. of wall (normal?) (date wrong as age is 3.2d & should be @ 23d. 9/15/30 would be correct: aux. data for 15th". The Cameron 1978 catalog ID=0. The Cameron 1978 catalog ID=398 and weight=0. The ALPO/BAA weight=1.
On 1996 Feb 12 at UT 07:30-08:27 J.Sandel (Caycee, SC, USA) noted a contrast effect inside Tycho at sunset. At 07:30UT there was a slight, but definite illumination of small areas of the crater floor west of the central; peak. Also seen by T. Ferrel (Lawrenceville, GA, USA, SCT C8). This was oval in shape and gray in colour - Ferrel noted some diffuseness. It brightened over 30 minutes. At 08:11UT a definite brightness fade noted in Tycho's central peak. The crater floor had increased illumination of entire crater floor. ALPO/BAA weight=3.
On 1944 Aug 12 at UT 04:00 H.P. Wilkins (Kent, UK, 8.52" reflector) observed that central craterlet in Plato was unusually bright and shows up as a bright white spot on his sketch - though this might have been artistic license in his sketch. His written notes refer to the unusual lack of a rim (especially the northern part) to this craterlet. The ALPO/BAA weight=2.
Aristarchus 1970 Jul 26 UT 15:00? Observed by Sekiyuchi (Tokyo, Japan, 36" reflector) "Polarimetric and photoeletric anomalies on Moon" NASA catalog weight=5. NASA catalog ID #1268. ALPO/BAA weight=5.
Gauss 1968 Sep 18 UT 08:00? Observed by Chilton (Hamilton, Canada, 11" reflector) "Observing thru polaroid filter, E. (IAU?) wall was invis; but became vis. when filter was rotated, indicating refl. of polarized light. Same area examined since, but no such phenomenon." NASA catalog weight=3 (average). NASA catalog ID #1090.
On 1982 Jul 18 at UT 04:12-04:22 A. Ansari (Queen Mary College London, UK, a naked eye observation), upon examining the cresecent Moon, detected a bright flash from the Plato region. Two more flashes were seen at 04:22, about a second apart, and the latter was the fainter. The Cameron 2006 catalog ID=176 and weight=3. The ALPO/BAA weight=2.