Alphonsus 1972 Jul 29 UT 00:30-03:30 Observed by Morgan (England, UK) "Orange spot just W. of c.p. on central ridge; circular area @ 15-25km diam, larger than c.p. Was bright orange then turned orange-brown toward center. Central 4,5km was darker than rest; bownish-black with blue-white specks flashing in center. Obscur. there but ridge clear elsewhere. The dark spot SW of c.p. could not be seentho outside of color area. Sketch. It had appearance of dome of atm. thicker at center. Never seen before in 11y. Next nite brighter. NASA catalog weight=3. NASA catalog ID #1337. ALPO/BAA weight=1.
Aristarchus 1970 Feb 24 UTC 07:00? Observed by Thomas & Stump (Corralitos Observatory, Organ PAss, NM, USA, 24" refletor+Moon Blink) "Bluring around crater -- vis. in monitor, but not photographed due to clouds." NASA catalog weight=4 (good). NASA catalog ID #1235.
On 2002 May 30 at UT02:30-02:44 C. Brook (Plymouth, UK) suspected that Aristarchus crater looked dimmer than normal. The ALPO/BAA weight=1.
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.
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 1895 Sep 07 an unknown observer (Lewis Swift?) observed a pale blue segment on the upper limb - this was apparently confirmed by Faulkes (Mem. BAA, 1895). Cameron says that this is probably 1895 Sep 08 at UT 06:00 as Sep 07 is local time. She also infers that "upper limb" is the southern limb and that Swift was at the Lowell Observatory, Flagstaff, AZ, USA. The Cameron 1978 catalog ID=285 and weight=5. The ALPO/BAA weight=2.
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.
Alphonsus 1972 Jul 30 UT 00:30-03:30 Observed by Morgan (UK using a reflector) "Orange glow, brighter this nite than last nite. Following nites were cloudy. Aristarchus and Gassendi were negative." NASA catalog weight=3. NASA catalog ID #1338. ALPO/BAA weight=3.
On 1979 Aug 12 at UT07:00-10:35 D. Darling and wife (Sun Prarie, WI, USA, 12.5" reflector, x342, photos, S=9/10) observed a cigar shaped protruberance in Romer crater that cast a 32km long shadow, nestled in a valley rille next to Romer. This was a confirmed observation. The effect persisted intil sunset. The top of the object and two points on the crater rim were reflecting the Sun's rays. "Top of obj. & 2 pts on crater rim reflected suns rays. It was as high as the crater rim whereas the rill wall was not. Took photos. he has studied this area and never saw such a phenom before. Photos did not show it". The Cameron 1978 catalog ID=65 and weight=5. The ALPO/BAA weight=2.
Observed by Dachille & daughter (Univ. Park, Pennsylvania, 10.5" reflector, x75) "Flash -- then a brownish - red color patch. Alt. @ 20deg. (MBMW has Oct. 12, but is 13th UT)". NASA catalog weight=5 (very good). NASA catalog ID #674.
In 1964 Jan 05 at UT 22:00? Doherty (Stoke-on-Trent, UK, 3" refractor, 8" or 10" reflector) observed aristarchus to be purplish-blue in colour. The Cameron 1978 catalog ID=794 and weight=3. The ALPO/BAA weight=2.
Gassendi 1966 Dec 04 UTC 01:05-01:23 Observed by Whippey (Northolt? England, 6" reflector, x212) "Abrupt flash of red, setling in immediately to a pt. of red haze nr. NW (ast.?) wall. Continuous till 0123 (date given was 4-12-66 = European convention?)." NASA catalog weight=3 (average). NASA catalog ID #1000.
On 1966 Apr 12 at UT 01:05-01:23 Whippey (Northolt, England, UK, 6" reflector x212) and Corralitos Observatory (Organ Pass, NM, USA, 24" Moon Blink) observed in Gassendi: "Abrupt flash of red, settling immediately to a point of red haze near NW (IAU?) wall. Continuous till 0123h. (Not confirmed at Corralitos Obs. MB--at same time?". The Cameron 1978 catalog ID=927 and weight=3. The ALPO/BAA weight=2.
On 1964 Jan 06 at 02:00? Markov and Khoshlova (Russia) observed anomalous IR radiation on the Moon. The Cameron 1978 catalog ID= and weight=5. The ALPO/BAA weight=3.
Alphonsus 1956 Oct 26 UT 12:54 Observed by Alter (Mt Wilson, CA, USA, 60" reflector, S=E) "Photog. thru UV & IR filters. Obscur. of E. 1/2 of floor evident in blue plates -- KodakII-O plate no filter. 2m later Kodak I-N. One pair of plates best he'd ever seen. Similar obscuration seen 2X on Linne (this started Kozyrev on his spectrographic program.)." NASA catalog weight=5 (very high). NASA catalog ID #653.
On 1980 Jul 05 at 03:20UT P.Moore (Selsey, UK, 12?" reflector) found Aristarchus to be "Very brilliant indeed". Cameron 2006 TLP catalog ID=100 and weight=3. ALPO/BAA weight=2.
On 1973 Dec 18 at UT06:35-06:38 Pasternak (53deg 20' N and 7deg 30' E, using 75mm reflector, focal length 700mm, transparency 1 out of 5 and seeing 2 out of 5) observed a faint brightening in the south wall of Aristarchus. Published in Hilbrecht and Kuveler, Moon and Planets, 30 (1984) p53-61. ALPO/BAA weight=1.
On 1983 Dec 28 at UT03:30-05:00 Moseley (Covington, England, UK, seeing=V-IV and transparency=good) detected some detail within the shadow under good moments of seeing. The external brightness was extended to the east wall at a clock position of 9 O'clock, but did not go outside the rim. It was less bright at the 11 O'clock position. The Cameron 2006 catalog ID=236 and the weight=3. The ALPO/BAA weight=2.
On 1969 Feb 12 at UT 12:00 Taboada (Mexico, seeing=excellent) found that the Aristarchus region had the same characteristics as the previous days, perhaps a little darker colour brown, but more remarkable. He used red, blue and green filters and a difference in colour was noticed in and out of the region. Cameron suspects that permanent colour was being seen? The cameron 1978 catalog ID=1116 and weight=3. The ALPO/BAA weigh=2.
On 1884 Sep 16 at UT 09:30-10:00 Heywood (Westville, Ohio, 2" refractor) saw an unusually bright glow covering dark part, nearly uniform. Thought it was electric because it was too bright for Earthshine. It obscured features. The Cameron 1978 catalog ID= and weight=1. The ALPO/BAA weight=1
On 1882 Nov 07 at UT 05:00 Hopkins (UK) observed the dark eastern limb and a line of light and attributed this to a lunar atmosphere. Further details can be found in: Reference: Sirius 16, 279, 1883. Cameron 1978 catalog ID=229 and weight=3. ALPO/BAA weight=2.
On 1969 Oct 14 at UT 00:00-00:30 Celis et al. (Valparaiso, Chile, seeing=good and transparency=good). observed Aristarchus and found it to be: "Scintillating in irreg. way. Pulses of 1m each time changing with normal & irreg. periods. Best time to see this is 2-3d age. Brightenings comparable to 7.0-7.5 mag. stars, at age 2.2d;7.6-8.0 mag. at age 3.0 & 8.5-9.0 mag. at 4.2d. Moon obs. from age 1d to 62d with several refr. & refl. in program of obs. of scintillation in ashen light. (Atmospheric?)". The Cameron 1978 catalog ID=1203 and weight=1. The ALPO/BAA weight=1.
On 1822 Jan 27 at UT 20:00? F. Struve (Pulkovo Observatory? Russia) observed near Aristarchus an 8th magnitude star-like point. Seen through overcast! (Klado gave date as 1821 but must be in error according to cameron). The Cameron 1978 catalog ID=95 and the weight=4. The ALPO/BAA weight=2.
On 1969 Oct 16 at UT 00:00-00:30 Celis (Quilpue, Chile, 3" refractor, x60, seeing=very good) observed brilliant points at 8.5 magnitude in Aristarchus. This was not seen the next night or the one after, nor after 5 days age. The Cameron 1978 catalog ID=1204 and weight=1. The ALPO/BAA weight=1.
On 1984 Jan 08 at UT16:30-18:40 P. Moore (Selsey, UK, seeing=III) could not see Aristarchus in Earthsine, despite, Tycho and the mare regions being plainly visible. Foley (Kent, UK) found Aristarchus to be a "soft blue patch" and North (seeing IV-V) found the crater to be one of the brightest features on the Moon. The Cameron 2006 catalog ID=237 and the weight=0. The ALPO/BAA weight=1.
SE of Ross D 1964 Feb 19 UT 03:00 Observed by Bender (Whittier, CA, USA, 19?" reflector) "Variations in the ring" NASA catalog weight=1. NASA catalog ID #800. ALPO/BAA weight=1.
Near Desseilgny in Mare Serenitatis (29E, 25N) 1971 Feb 01 UT 19:40- 20:15 Observed by Persson (Hvidore, Denmark, 2.5" refractor, x100, S=G) "Obscur. (blurred & dark) starting between Plinius & Menelaus moving towards Posidonius. Normal after 2 min. A little crater (white spot) periodically disappeared for several secs regularly every few min. There was haze above onlt this spot. A tiny crater SE of it was invis. till 2015h then became clear & steady. Color was reddish-brown. Drawing. (Apollo 14 watch)." NASA catalog weight=2 (low). NASA catalog ID 1293.
On 1972 Dec 11 at UT22:28 Cernan, on board Apollo 17, saw a flash on the east rille in Mare Orientale (88W, 20S) as he orbited the Moon. The Cameron 1978 catalog weight=1354 and the weight=3. ALPO/BAA weight=2.
On 1983 Feb 19 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
On 1997 Apr 14 at UT 20:00-22:00 F. Paolo (Legnano, Italy) photographed a lunar flare on the lunar limb.
Alphonsus 1965 May 08 UTC 05:47-05:59 Observed by McLaria (Huntsville, Alabama, USA, 16" reflector, S=9) "Light flashes on c.p. color detected by Trident M.B." NASA catalog weight=5. NASA catalog ID #875. ALPO/BAA weight=5.
Montes Teneriffe 1854 Dec 27 UT 18:00-23:00, Observed by Hart & others (Glasgow, Scotland, 10" reflector), "2 luminous fiery spots on bright side on either side of a ridge, contrasting color. Seemed to be 2 active volcanoes. Ridge was normal color. Spots were yellow or flame color. Never seen before in 40 yrs. of observing." Please try to observe this when the Moon is low on the horizon to see if this mimics the effects seen? NASA catalog weight=4. NASA catalog ID #129. ALPO/BAA weight=2.
In 1922 May 04 at UT Burnerd (England?) discovered three long mounds in Archimedes crater (rays?). The Cameron 1978 catalog ID=385 and weight= 0. The ALPO/BAA weight=1.
On 1979 May 04 at 21:30-22:00UT Coates detected a star-like point inside Hipparchus L crater using averted vision. Cameron in her 2006 catalog extension comments that Hipparchus L is a highlands impact crater with a rille on the western ejecta blanket. The crater is the smallest one in a chain that are sequenced to be half the size of the previous crater in the chain. Apparently the largest crater in the chain is Hind with a largely landslide covered floor - although on the south is a dome? with a summit crater. Cameron's 2006 catalog extension gives this TLP an ID of 51 and a weight=2. The ALPO/BAA weight=2.
On 1983 Feb 20 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
On 1986 Nov 09 at UT 23:00 Quinn (Glebview, IL, USA, 8" reflector, x49- x305) found ïn the vicinity of an unnamed ridge points toward Pico- two bright points about 5 magnitudes brighter than any other part of the Moon. The Alpine valley points directly between these two points. "Came from apparently featureless area. Both points about the same size, but different shapes ~ width of alpine valley" The observer used 4 different eyepieces and the points were brightest in the lowest power. Other specks of light could be seen in the darkness wound the N point. The Cameron 2006 catalog ID=289 and the weight=3. The ALPO/BAA weight=2.
On 2003 Apr 10 at 00:40UT a GLR observer G. Jasmin (Quebec, Canada, using a 10" F-10 Schmidt Cassegrain) took a photograph of Alphonsus crater on Kodak 400ASA film with an exposure of 1/30th sec. There was a light visible (diameter 10 km) inside Alphonsus and the effect was present for 5 minutes. The observer commented that they have seen a light in this crater many times before, but never as long as 5 minutes. This report was submitted to the GLR group in Italy. The ALPO/BAA weight=2.
Thaetetus 1952 Dec 24 UT 20:00? Observed by Moore (England?) "Bright spot, hazy line of light" NASA catalog weight=4. NASA catalog ID 556. ALPO/BAA weigh=2.
On 2009 Aug 28 at UTC 17:00:15-17:00:42 S. Khachatryan (Yerevan, Armenia, 127mm Maksutov-Cassegrain, x171, seeing 9 (1=worst and 10- best), Transparency 5-6 on a scale of 1 to 6) observed in the Chacornac area a series of fiery sparks (dot like with tiny rays), slightly elongated with the multitudinal rays orientated towards the south west direction. The colour was mostly red, with some yellow. The final flash was the most clear. The TLP was tiny in area, but "was distinctly bright against any other object on the Moon". The positional uncertainty of the location of the spark effect was approximately +/- 150 km, based upon an examination of an atlas afterwards. Just prior to the spark effect, something dark, small and fuzzy (only just discrnable to the eye, through the eyepiece) was seen to pass from the west across the Moon in a slight curve, round the surface of the Moon to the east (post observation estimate: seen for 3.5 sec and covered roughly 8% of the lunar diameter in that time). The area of the dark object was comparable in size to (or slightly less than?) craters such as Autolycus F (diameter 3km) or le Monnier E (diameter 4km) i.e. on the limits of vision of the scope used. The location of the flash was not exactly at the same location as the dark object passed across, but gave the impression of starting from it? A back of the envelope calculation of the lunar diameter covered in the time quoted gives an approximate speed (at the lunar distance) of 80km/s or on the very high end of typical meteor streams that pass by. At closer distances, and recalculated velocities, it is unlikely to be a satellite in low Earth orbit (20m/sec at 100km distance), but could perhaps be a bird or insect at a few km range? So was this dark object something in our atmosphere by chance passing across the field of view close to the time of the TLP flare or was at the lunar distance and related to the TLP? Incidentally, no attempt was made during this observation to move the scope to check that the TLP remained stationary against the Moon. The ALPO/BAA weight=2.
On 1889 Jun 06 at 22:00 UT Lade of France (8" refractor) saw two extremely bright spots (Plato B & D). Cameron 1978 catalog ID=262 and weight=2. ALPO/BAA weight=1.
On 1988 Feb 25 at UT20:00? P.W. Foley (Kent, UK, 12" reflector) found that Aristarchus was very bright (especially in the UV end of the spectrum) despite other features not being seen in Earthshine. The cameron 2006 catalog ID=318 and the weight=1. The ALPO/BAA weight=1.
On 1993 Jun 27 at UT 19:55-20:21 and 20:24-21:04) D. Kane (England? UK, 4" refractor) discovered that the central peak of Alphonsus crater was very bright. The central peak was also brighter in red than in blue light. However G. North (Herstmonceux, UK, 6" reflector, x135, seeing V-III) and M. Cook (Frimley, UK, 4" reflcrctor, x10, seeing=III) observed that the central peak was normal, however they did not use filters. The Cameron 2006 catalog ID= and weight=3. The ALPO/BAA weight=2.
2004 Dec 20 UT 02:51-03:26 R. Gray (Winumma, USA) noted that the crater had exceptional brightness to nimbus surrounding it. ALPO/BAA weight=1.
Proclus 1972 Aug 17 UT 20:05-21:10 Observed by Haiduk (13.25E, 52.5N, 60mm refractor, S=1, T=3) "Well visible bright area at the NE wall, end of event uncertain for seeing became poor" Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, pp53-61.
On 1983 Feb 21 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
Alphonsus 2004 Feb 29 UT 19:00-19:15 Observed by Brook (Plymouth, England, 60mm OG x120) "Checked central peak of Alphonsus using 60mm OG x120 + right angle prism. Moon at very high elevation, seeing excellent once clouds had dispersed, transparency also excellent. Time of observation 19-00 hrs UT to 19-15 hrs UT. Noticed fluctuation of brightness of A's central peak compared with the peak of Arzachel. Alphonsus' peak generally brighter." BAA Lunar Section report. ALPO/BAA weight=2.
On 2010 Aug 19 at UT 00:50-01:02 J.Albert (Lakeworth, FL, USA, C11, Transparency 3, Seeing 7-8, 86F and very humid. Oberver checking out repeat illumination condition appearence for Tycho concerning LTP #468 in the 1978 Cameron catalog. Did not see the effect from the original TLP report, but did see, immediately at looking at Tycho a very faint hint of redness in a pencil thin arc (< 1/4 circumference of the rim) confined to the top of the rim of the well-lit north east wall. Coloured arc similar in thickness to Rupes Recta, but not as sharply defined. The outer (E) edge was perhaps sharper than the inner edge. The redness was more on the inside of the top of the rim. The outside of the rim was bright white. This effect was seen in three different eyepieces, at 311x, 224x and 400x. Checked for the effect on other craters nearby but could not see this effect anywhere else. The colour had dissapeared by 01:02UT. The fade took about 1-2 minutes. Observation of Tycho continued until 01:06UT, but all seemed normal. Quick checks were made again on Tycho periodically until 02:50UT but the colour was not seen again. ALPO/BAA weight=3.
Linne 1868 Jul 28 UT 20:00? Observed by Tacchini (Palermo, Italy) "Shadow not so marked-had a light penumbra, indicated a feeble cavity. Other craters had a black shad. On 29th appeared completely white. Crater normal on 26th. (letter to Madler Sep. 16, 1868)." NASA catalog weight=4 (high). NASA catalog ID #159.
On 1979 Jul 03 at UT 20:55-21:20 J-H. Robinson (Teighmouth, Devon, UK, 10" reflector, seeing II) observed that Messier was brighter than Messier A. No colour was observed. The Cameron 2006 catalog ID is 58 and the weight=3. ALPO/BAA weight=1.
On 1964 Feb 22 at UT 05:00 Harris (Whittier, CA, 19" reflector, x100) observed the appearance of a ring to the south east of Ross D. Cameron says that 7 persons have seen this over a 2.5 year period. The Cameron 1978 catalog ID=801 and weight=1. The ALPO/BAA weight=1.
Copernicus 1955 Jul 28 UT 20:20 Observed by Firsoff (Somerset, England, 6.5" reflector x200) "Great brilliance of the terraces in E(IAU?) wall system(?) gets specular refl. (he gave 0820UT, but must have meant 2020" NASA catalog weight=4 (high). NASA catalog No. #600.
Aristarchus 1976 Jun 06 UT 21:30-21:40 S.Spencer and R. Hunt (60mm refractor, x150 and x60) both observed red on the SW corner of Aristarchus. ALPO/BAA weight=1.
Atlas 1966 Dec 21 UT 17:10 Observed by Andre (Belgium, 3" refractor) "Bright spot on SE part of floor, not seen in photo on 12/18/66" NASA catalog weight=2 (low). NASA catalog ID #1003.
On 1990 Aug 30 at UT02:11-02:36 D. Darling (Sun Praire, WI, USA, 3" refractor, x90, seeing conditions: "at,. boiling") noted a coloured area on the west wall of Copernicus that was unusual in appearance - however other craters along the terminator had a similar effect. There was also a "dazzling bright spot on the E. rim and he witnessed 6 flashes from the lighted part of Copernicus over a very short time interval. Cameron comments that the colour may well have been dur to chromatic aberation because a refractor was used. The Cameron 2006 catalog ID=408 and the weight=0. The ALPO/BAA weight=1.
On 1990 Aug 30 at UT 02:11-02:36 D. Darling (Sun Praire, WI, USA, 3" reflector, x90, atmosphereic conditions: boiling) found "N rim of Proc. bright interior uniform gray". The Cameron 2006 catalog report is slight unclear as the description for thnis 1990 Aug 30 TLP also includes Copernicus and Censorinus in the list of TLP craters. So one description which might refere to Copernicus, could possibly have been meant for Proclus, namely: "Dazling bright spot on E rim. Rotated eyepiece but no change. N rim of Proc.......". The Cameron 2006 catalog ID=408 and weight=0. The ALPO/BAA weight=1.
2012 Sep 24 UT 22:00-23:00 Copernicus. E. Horner (Salisbury, UK, 15cm reflector) observed a prominent red arc where the sunlit part of the interior wall met the shadow. Sometimes the arc was 1/4 the way around the interior, and sometimes half of the way around. Telescope moved, but the red arc stayed where it was. Eyepieces change, but the effect remained. Other parts of the Moon checked, but no red seen. There were however splashes of green e.g. Longomontanus on the terminator, elsewhere further inland from the termionator, and little splashes of green on Mare Frigoras - but lasting a brief time. The red colour was as strong as a red LED and the green similar to that of the northern lights. The observer's husband was asked to independetly check Copernicus and remarked that he could see a little bit of green at the top and some red near the bottom, along the line of the internal shadow. Although there were checks for red elsewhere on the Moon and none were seen, the Moon was starting to get low and it is typical of spurious colour in a few respects. Therefore the ALPO/BAA weight=1 for safety.
On 1952 Feb 05 at UT 05:10 J.Carle (USA, 8" reflector, x180) observed the following in Plato: "A shadow in a depression, or a cloud, or an optical illus.? Oval dark area nr. center, disappeared in 15m clear & prominenet at first then vanished. 4 of 14 spots nr. center continuously seen while remaining ones seen only momentarily. (seeing?) Drawing includes sketch on March 7. His sketch shows 18 spots, 13 same as here". The Cameron 1978 catalog ID=549 and the weight=2. The ALPO/BAA weight=2.
Mons la Hire 1972 Nov 15 UT 09:45-10:18 M.Geisel (Brisbane, Australia, 12.5" f/8 reflector, x90) discovered the TLP, P. Anderson (9.5" reflector) independently confirmed that the TLP had an effect in his Moon Blink device - but the effect (suspected that the blink was caused by the extreme nrightness of the mountain?) was weak and thought it not worth further investigation. Photographs taken by Anderson. Geisel believes the effect to be real and states that the area remained sharp and clear throughout. ALPO/BAA weight=2.
On 1960 Aug? 01 at UT 22:00? an unknown observer detected that Vitello was illuminated -it should have been in shadow? Cameron says that if several days before sunrise then the date could have been July through to December, with August 1st most likely, and ancilary data is therefore given for this date. The Cameron 1978 catalog ID=729 and weight=1. The ALPO/BAA weight=1.
Ross D vicinity 1964 Apr 22 UT 05:43-0637 Observed by Cross et al. (Whittier, CA, USA, 19" reflector, x800-1200 & filters, S=7- 8, T=1) "Gas cloud over it & its companion; everywhere else was fine detail" NASA catalog weight=5. NASA catalog ID #809. ALPO/BAA weight=3.
Plato 1976 Sep 04 UT 02:35-03:35 Observed by Porter (Sarragansett?, Rhode Island, USA, 6" reflector x100, S=5, T=?) "At 0235h albedo of floor was est. at 3. At 0325h the pt. was albedo =1, 2 whole steps darker than earlier & noticeable to the obs. 10-15 min later it returned to normal. (the few meas. of albedo for this age were 1.5-2 which suggests that the meas. of 3 was the anomalous one. Another pt. did darken -- as reported). NASA catalog weight=3. NASA catalog ID #1448. ALPO/BAA weight=1.
Daniell 1979 Jul 04 UT 20:40-21:19 Observed by Saxton (UK?, 216mm refractor?, seeing III, transparency: Good) "noticed that the east end of Daniell was bright and fuzzy and had somewhat poorly defined edge to the bright part. A sketch was made, and possibly shows the same as in past reports" BAA Lunar Section Report. Cameron 2006 extension catalog ID=59 and weight=3. Observer located in Leeds, England and used a 9" reflector x250. Seeing=III and transparency=good. ALPO/BAA weight=2.
H. Davies (Llamandel, Swansea, UK, using a 3" refractor, detected a short duration reddish hue along the inner NE-NW? rim (4-7 O'Clock location. Sketch supplied to Foley (BAA coordinator). No similar effect seen elsewhere. A.C. Cook (Frimley, UK) detected spurious colour on several craters, including Plato that night. Cameron 2006 Catalog Extension ID= 337 and weight=0. ALPO/BAA weight=1.
Colour seen, mostly blueness on south rim and exterior of south rim at Bullialdus crater. Blueness seen too on Plato on inner SSW rim, but no colour reported on any other craters. Seeing III, 12" reflector used x200 and x360.
Colour seen, mostly blueness on inner SSW rim. Blueness also seen on south rim and exterior of south rim at Bullialdus crater. No colour reported on any other craters. Seeing III, 12" reflector used x200 and x360.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars saw three dark spots suddenly appear on Mare Crisium and disappear approximately 30 minutes later. Cameron 2006 catalog extension ID=145 and catalog weight=4. ALPO/BAA weight=2.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars saw TLP activity in Plato that Cameron thinks confirms what UK observers saw later. Cameron 2006 catalog extension ID=145 and catalog weight=4. ALPO/BAA weight=1.
Alphonsus 1966 Apr 01 UT(?) 03:00-03:20 Observed by Jenning, Harris (Coral Estates, CA, USA, 12" reflector) "Red patch from c.p. to W. wall (no confirm. from Corralitos obs. moon blink device & obs. at that time)" NASA catalog weight=3. NASA catalog ID #924. ALPO/BAA weight=2.
Agrippa and vicinity 1878 Dec 04 UT 20:00? Observed by Capron (France?) "Odd, misty look as if vapor were in or about them" NASA catalog weight=3 (average). NASA catalog ID #209.
Observed by G.H. Johnstone of Albuquerque, NM, USA on 1954 Nov 05 UT 20:00 (according to Cameron), but 02:00-04:00 according to the original observation and at colongitudes 34.7 to 35.7 deg. 4" reflector, x150 used. The obsewrver reported that the western part (about 1/3rd of the interior) was pitch black with shadow. However there was a zone about as wide, or perhaps only a fourth of the total width that was distinctly a lighter bluish shade, almost like twilight. The shadows of the peaks on the western edge of the rim were clearly seen crossing this bluish shadowed area. Then this area ended sharply, and the farside was bathed in light from the rising sun. The shadows of the peak were sharply defined across the twilight zone, and the edge of the pitch black shadow was easily defined but not as sharp as the darker shadows crossing the the blue twilight zone. The observer checked other craters but did not see this condition in any of them - they all had the abrupt division between black and white that we would normally expect to see. Cameron 1978 catalog ID=579 and weight=2. Reference 1962 edition of ALPO's Journal: The Stolling Astronomer. ALPO/BAA weight=3.
P. Moore at 21:10 found the southern wall (and ontothe southern floor) of the crater to be indistinct. Elsewhere in the crater everything was sharp. The effect was still seen at 21:42UT, but less strong. A check was made for colour with aq Moonblink device, but none was seen. There was still a trace of this effect at 21:44UT, although detail was now becoming visible. By 21:48UT vertical streaks were seen crossing the floor from the obscuration area and these were more visible in the red filter and not in the blue. Cameron comments that undefined patches on the floor of Plato are not normal. By 21:55UT some craterlets on the floor started to become visible and the TLP for Moore ended by UT22:23. P.Foley was alerted by Moore and saw a "amssive dense obsecuration on the south wall, south floor and south outer glacis to the Mare". Foley noted that by 21:50UT the effect was fading and finished by 22:03UT. Foley reported an orange translucent haze covering half of the floor, but floor craterlets could be seen on and off - however his atmospheric seeing conditions were IV. At 22:00 UT Foley reported the floor close to the north wall to be "milky or misty". No detail was visible at 21:15UT and variability in the floor continued until 23:10UT. Hedly-Robinson was aleted at 21:35UT and found no difference between red and blue views of the area, however he did find that the south rim was indistinct although this effect had lessened by 22:00 UT and was normal by 22:17UT. M. Mobberly saw a white spot on the floor at 21:20 UT, whereas he normally would have expected to see craterlets. Mobberly was alerted at 21:40 UT and took some colour photos. He also made sketches that showed variability in the floor and dark lines and patches in the north west corner. However the altitude of the Moon was low. Cameron mentions that two of the photos show loss of detail at the south wall and beyond.and also a change in the floor markings.The north wall at 21:50UT was strangely reddish (didn't think this was spurious colour). The rest of the wall was sharp at 22:20UT through a yellow filter. Large bright patch in the centre and rest of the floor was apparently of the same shading as Mare Imbrium. The above notes are based upon the Cameron 2006 catalog extension TLP ID 145 and weight=4. ALPO/BAA weight=2.
Plato 1870 May 10 UTC 22:00 Observed by Birt (England) "Extraordinary display of lights. Says not effect of sunlight" NASA catalog weight=4 (high). NASA catalog ID #167.
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.
C. Brook of Plymouth UK, using a 4" refractor x216, noticed at UT 20:10 dark patches coming and going (in terms of visibility) on the floor of Plato. Occasional views of the central cratelet (seen as a white spot) were glimpsed. The dark patches seen lasted about 1-2 seconds before fading out during each visibility cycle. Teneriff Mountains were checked but no sign of seeing effects that might explain the dark floor patches. By 20:26UT the dark patch effect was fading and by 20:31UT floor detail was visible. Observations ceased at UT 20:34. Seeing conditions were II and the Moon was at a high altitude. Other observers were alerted but came on-line after the effect had finished. ALPO/BAA weight=2.
On 1990 Jan 07 at UT 20:20-20:58 G.North (Herstmonceux, UK) thought that he detected dullness in Torricelli B crater - Cameron comments that this cannot be shadow). The Cameron 2006 catalog ID=386 and the weight=3. ALPO\/BAA weight=2.
Brilliant blue color seen at first for seconds, later for min 2h later, in blue filter. Cameron 1978 catalog weight=4 (high). Cameron 1978 catalog ID 572.
Tycho 2971 Nov 28 UT 21:58-22:05 observed by D.B. Taylor (Dundee, UK, darker area inside the crater (NE and SE floor) in a Moon Blink device. However the observer does not report through which filter ir was darker. ALPO/BAA weight=1.
Plato 1971 Oct 30 UT 19:35-20:55 E.Watkins (Braintree, UK, 4.5" reflector, x45,x150, x225), thought he saw a faint patch at 19:35 and it still was visible at 19:40. At 19:50-19:55 he saw what may have been the remainder. At 20:55 he noticed a shadow in the area. ALPO/BAA weight=1.
Peice A (Swift=IAU name?) 1927 May 12 UT 22:03 Observed by Wilkins (England, 15" reflector) "Complete obscuration of crater. Saw no trace of it. It was vis. May 11 & faint on May 13. 3x in 1948 Moore saw whole area misty gray & devoid of detail, whereas surroundings were sharp & clear. Birt also found it invis. at times in late 1800's" NASA catalog weight=4. NASA catalog ID #394. ALPO/BAA weight=3.
Plato 1906 Mar 06 UT 22:00? Observed by Fauth (Germany? 6" refractor) "Color (brightness?) greatly enhanced as it was to be on the next nite" NASA catalog weight=3 (average). NASA catalog ID #324.
On 1990 Jan 08 at UT00:55 D. Weier (Sun Praire, WI, USA, 12.5" reflector, x159) observed an "anomalous black bar across Aris. Nearly digonal to terminator." The nearby crater Prinz had curious shadow patterns, perhaps related to the rising sun projecting shadows from the eastern rim and "reflected down"? "At 0224 W wall had a break in it & a diffuse glow where it should not be. Manske thinks it was Earthshine effect. At 0305 Weier saw Manske's bar - with diffused light and flicker like an aurora - like a gas with electric charge. At 0325 saw a strange glow in Aris. but may be due to atm. though thought it to be a LTP. Darling had never seen such effects before (flickering implies a medium in it)." The Cameron 2006 catalog ID=387 and the weight=3. The ALPO/BAA weight=3.
Aristarchus visible just past terminator. West wall was brighter than normal. Bright flash seen in/on NW wall - apparently in the same place as Pedler's May 17th sketch. Cameron 2006 extension catalog ID=146 and weight=4. Observed by M. Price of Camberley, Surrey, UK with a 6" reflector and a Moon Blink device. Seeing=III.
Plato 1981 Jun 13 UT 20:48-21:08 Observed by Price (Camberley, England, 152mm reflector, seeing III) Possible Moon blink (red) seen on north wall. Also the craterlets on the floor could be seen despite the observing conditions not being optimal. BAA Lunar Section observation. Cameron 2006 extension catalog ID=146 and weight=4. ALPO/BAA weight=3.
Observer noted a bright spot on the interior west wall that seemed brighter than what they would have expected. unfortunately the precise time of this observation was not recorded so the moon-rise and midnight UT values are used to place a limit on the time of observation. Images by Shaw taken at UT 1754, 18:45 and 23:13 do not exhibit the effect.
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 1984 Jan 14 at UT 20:00 P. Moore (Selsey, UK) observed that Aristarchus was brighter than it normally is at sunrise. No quantitative measurements were made though. The Cameron 2006 catalog ID=238 and weight=3. The ALPO/BAA weight=1.
Gassendi 1969 Nov 20 UT 19:30-19:45 Observed by Becker (Holland, 4" refractor) "Curious small shadow from NW (ast. ?) wall. (Apollo 12 watch)" NASA catalog weight=1 (very low). NASA catalog ID #1224.
Plato 1870 May 11 UTC 22:00 Observed by Birt (England) "Extraordinary display of lights. Says not effect of sunlight" NASA catalog weight=4 (high). NASA catalog ID #167.
Aristarchus 1969 Nov 20 UT 19:45-20:05 Observed by Becker (Holland, 4" refractor) "Sharp whiteness on inner W. (ast. ?) side (Apollo 12 watch)" NASA catalog weight=1 (very low). NASA catalog ID #1224.
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 1978 May 18 at UT20:45-21:53 J.D. Cook (Frimley, UK, 12" reflector, x240) observed Promitorium Laplace to have visually a brown colour - though no Moon Blink (red and blue filters) effect was detected. Cameron comments that this is probably a subjective effect - also others have reported something similar at times. The Cameron 2006 catalog ID=30 and weight=3. The ALPO/BAA weight=1.
Plato 1998 Jul 05 P. Moore (Selsey, UK, 15" reflector, x200- x400, seeing II/III) comments that he is puzzled why the floor of Plato, which is light gray in shade, looks completely blank tonight. The ALPO/BAA weight=1.
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.
M. Cook of Frimley, UK observed a brightening of the crater during this observing session. The cameron 2006 extended catalog ID=346 and weight=3. ALPO/BAA weight=2.
G. Ward (a lunar observer for 15 years) observed an area just south west of Mersenius C to be blurred and in a greenish cloud. The green colour was more like that of dead grass than one gets from a neon bulb. The effect was seen from 04:50-04:57UT, but could have been going on before it was first noted at 04:50-UT. Seeing was 6-7/10 4" Refractor (2 element). refractor had been used hundreds of hours before (over a 10 year period) with no similar colour was seen. The observer checked other areas but did not see any similar effects. They also rotated and changed eyepieces, but this made no difference to the TLP. The TLP site seen was picked up on an image taken earlier at 04:47UT by W. Bailley, from Sewell, NJ, USA. Unfortunately the area concerned, a mountain on the image, was saturated and so we cannot tell if a colour was present there and the seeing was poor.
Blanco, J. Vidal, of Gijon, Spain (3" refractor x72) noticed an unfamiliar very bright center near to Encke. Cameron suspects that this was Encke B crater on the basis that it is a prominent small crater near to Encke. Cameron 2006 catalog extension ID=410 and weight=2. ALPO/BAA weight=1.
Daniell 1979 Jul 06 UT 21:15-22:30 Crick (Belgium, 6" reflector, Seeing=II and transparency=good.) noticed obscuration on a bright spot on the south east wall. This spot was quite prominent through a red Wratten 25 filter. The floor was very dark. Other craters were checked and were normal. A sketch was supplied and the position was the same as in other earlier reports. Cameron 2006 catalog extension ID=60 and weight=3. ALPO/BAA weight=3.
Plato 1987 Feb 10 UT 21:05-22:10. M. Cook (Frimley, UK), "NE ray distinct & also floor E of it, not distinct as on Dec 13 & Jan 11, while March 10, 11 & 12 seen by Price, North, Peters, Foley & M Cook, where rim was clear and sharp." - quote from the 2006 Cameron Catalog extension - TLP ID=297 and weight=5. Cameron gives the observers confirming this TLP as: M. Cook, G. North and Davies. ALPO/BAA weight=2.
In 1949 Nov 03 UT 01:06 J.Bartlett (3.5" refractor, x100) noted that the floor of Herodotus was very dark, the east wall was very bright, and the floor contained a central bright peak. The BAA/ALPO weight=3.
Kepler 1954 Nov 07 UT 23:20 Observed by F.A. Lugo (Caracus, Venezuela, 3.5" scope x125) Bright red star=like point just outside E.wall - visible for an hour. NASA catalog weight=3. NASA catalog ID #580. ALPO/BAA weight=3.
Aristillus 1972 Dec 17 UTC 21:50-22:20 observed by Berger (51.5N, 9E, 60mm refractor, T=2, S=3) "Diffuse bright cloud in the NE corner of the crater" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53- 61.
On 1993 Sep 28 at UT 04:30-06:10 S.Beaumont (Cambridge, UK)observed that the north east edge of Herodotus appeared as a "highland area spilling over into" the Cobra's Head border or "overlook". The shadow on the elevation was contiguous with a similar shadow over the Cobra's Head "like a darkening of the terrain. Shadow appears softer diffused without sharp bounds of most Lunar shadows. sketch. S. edge of crater started to appear at 0615". The Cameron 1978 catalog ID=468 and the weight=2. The ALPO/BAA weight=1 as the date or UT are wrong.
Plato 1906 Mar 07 UT 22:00? Observed by Fauth (Germany? 6" refractor) "Color (brightness?) greatly enhanced as on the previous nite" NASA catalog weight=3 (average). NASA catalog ID #324.
Foley (Kent, UK) saw the west wall dull and stongly coloured. Moore (Sussex, UK) saw the wall as normal. However Cameron points out that Foley (Kent, UK) is a lot more Blue/UV sensitive than Moore. Mosely (Covington, UK) at 22:10 UT noticed a brightening on the East wall and at 01:10-01:25 UT suspected that the interior had a weak yellow-green cast to it. Cook (Frimley, UK) states that orange colour was within the interior crater, but green beyond the east rim at the 9 O'Clock and the south east corner to floor blue/mauvre beyond the northern rim NW/WSW. Foley sstates that orange and blue/mauvre might be spurious colour, but green one cannot get this way. Cameon suggests chromatic aberatons as a possibility but thinks that the observers concerned were experienced enough to recognize this if it were the cause. Cameron 2006 catalog extension ID=239 and weight=0. Moore used a 15?" refletor and Foley used a 12" refletor. Mosely experienced II seeing and good transparency. Cook had III seeing and also good transparency. P. Grego made an observation this night too. The ALPO/BAA weight=2.
Plato 1870 May 12 UTC 22:00 Observed by Birt (England) "Extraordinary display of lights. Says not effect of sunlight" However an article by Nigel Logshaw in the Feb 2014 LSC suggests that it was probably just normal fine scale spots and streaks on the floor of the crater. NASA catalog weight=4. ALPO/BAA weight= 1. NASA catalog ID #167.
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.
Plato 1986 Dec 13 UT 20:30 Observed by A. Cook (Frimley, UK, seeing III) North East quadrant of Plato the crater was blurred and ill-defined. Also no craterlets visible anywhere on the floor of Plato until the central craterlet was just glimpsed later at 23:00-23:45, though seeing now III-IV (cirrus at times in the sky). At this later time the NE rim was less blurred than before. ALPO/BAA weight=1.
Plato 1981 Jun 14 UT 21:58 Observed by Foley (Kent, England, 11.75" Newtonian, Seeing III, Transparency Good) "Obscuration Seen" BAA Lunar Section Observation. ALPO/BAA weight=2.
On 2016 Jul 17 UT 03:49 P.Zeller (ALPO, Indianapolis, IN, USA) imaged a pseudo-peak with shadow on the floor of Herodotus, however the image scale and quality of this colour image were not great and the observer suspects that it might be an imaging artefact. ALPO/BAA weight=1.
P. Foley of Kent, UK, using a 12" reflector, seeing=III-II, noticed that initially that the crater was pretty dull and that the floor was a slate blue-gray in colour at 22:45UT. A noticeable green spot inside the crater on the south east appeared at 22:25UT and vanished at 00:50UT. Cameron notes that one doesn't get green with spurious colour. Crater Extinction brightness measurements were made at 22:00 UT (reading=2.8) and at 23:45UT (reading=3.7). The crater dropped in brightness from 3.7 to 2.8 at 23:50UT and remained lower until 3.0 at 23:50-03:15 UT. A graph was produced and showed Proclus and Censorinus at similar brightnesses, but Aristarchus variable. The Earthshine was 0.3. Cameron 2006 Extension catalog ID=31 and weight=5. ALPO/BAA weight=3.
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.
Manilius 1939 Jun 30 UT 06:05 Observed by Haas (NM?, USA, 12"? reflector) "Dark area in S. part was I=2.0 but was I=3.7 on 7/30/39. Obs. conditions were very similar." NASA catalog weight=4 (high). NASA catalog ID #449.
Plato 1873 Apr 10 UTC 21:00? Observed by Schmidt (Athens, Greece, 6" refractor) "Under high sun, 2 faint clouds in E. part of crater."
Aristarchus 1975 Sep 18 UT 21:00? Observed by Foley (Kent, England, 12" reflector) "Deep blue-viol. spot in NW (IAU?) interior corner." NASA catalog weight=3. NASA catalog ID #1414. ALPO/BAA weight=3.
Aristarchus 1969 Nov 22 UT 18:20-21:13 Observed by D. Cutts (Chester, Eng., 8.5" reflector, x200), Moore (Sussex, Eng., 12" reflector x425), Miles (Coventry, Eng. 5" refractor), Delaye and Jourdran (Marseilles, Fr., 8" reflector) "Pulsating patch on W. wall between 2 radial bands. Faded by 2000h. Returned to normal. (Cutts). Miles saw strong pink in whole interior at 2112h. Strong blink. No blink there at 2210-2212h. Gass., Grim., & Plato were neg. Delaye & Joudan photog. it as very bright. Moore got neg. results at 2135. (confirm. of activity?, Apollo 12 watch)." NASA catalog weight=5. NASA catalog ID #1226. ALPO/BAA weight=3.
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.
Plato 1870 May 13 UT 22:00? Observed by Pratt (---), Elger (Liverpool, England), (Gledhill (Brighton, England) "Extraordinary display of lights. 27 seen by Pratt, 28 by Elger, only 4 by Gledhill. (independ. confirm. ?" NASA catalog weight=5 (very good) NASA catalog ID #168. A bit more of a detailed report is as follows: "Upon the 13th of May, 1870, there was an "extraordinary display," according to Birt: 27 lights were seen by Pratt, and 28 by Elger, but only 4 by Gledhill, in Brighton. Atmospheric conditions may have made this difference, or the lights may have run up and down a scale from 4 to 28. As to independence of sunlight, Pratt says (Rept. B.A., 1871-88), at to this display, that only the fixed, charted points so shone, and that other parts of the crater were not illuminated, as they would have been to an incidence common throughout.(30) In Pratt's opinion, and, I think, in the opinion of the other observers, these lights were volcanic." ALPO/BAA weight=4.
Plato 1981 Jun 15 UTC 21:30 Observed by Amery (Reading, England, 25cm reflector, seeing Antoniadi IV-V) At the 4 O'Clock position on the North West corner?, there was a dark smudge which reached from the floor across and over the wall and onto the terrain outside the crater. Foley, alerted by Amery, saw a dark show-like patch in the crater's north west corner, again lying across the rim. 2006 Cameron catalog extension ID=148 and weight=4. Foley used a 12" reflector and seeing was III-V. ALPO/BAA weight=3.
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.
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.
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.
Plato 1874 Jan 01 UT 20:00? Observed by Pratt (England?) "Unusual appearance" NASA catalog weight=1. NASA catalog ID # 183. 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.
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 1965 May 15 UTC 01:40-02:15 Observed by Weresuik, McClench, Johnson (Pt. Tobacco, MD, USA, 16" reflector x240, S=F, T=G) and Delano (Massachusetts, USA, 12" reflector). "Crater had color(red?) detected by Trident MB & photos were obtained. There were pulsations. Delano saw E. wall of crater unusually bright (confirm. if at same time)." NASA catalog weight=5 (very good). NASA catalog ID #876.
Eratosthenes 1976 Sep 08 UTC 04:29 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector 45-225x, S=5-4, T=5) "Psuedo-shadow X3 was present but X disappeared from wall(same intensity?) which was rated 4 deg. Disappearance of X so unexpected that he examined inner S wall very carefully & was certain it was free from psuedo-shad. Had vanished within 24h. Other pseudo-shadows showed no change. X reappeared next nite. (X must have been 4deg; &this is much higher than any other meas.). Variability of wall shadows may habe been what Pickering saw, suggests Bartlett." Cameron 1978 TLP catalog weight=4 and catalog ID 1452. ALPO/BAA weight=2.
On 1992 Oct 10 at 18:57-19:04 UT I.S.Brukhanov (of Minsk, Belarus, using a 6" refractor x40 and x98) saw a star like point inside Plato crater of similar brightness to the central peak of Alphonsus. The event lasted 90 seconds before weakening and vanishing completely at 19:04UT. Cameron 2006 catalog extension ID=455 and weight=3. ALPO/BAA weight=3.
Aristarchus area 1955 Sep 30 UTC 20:45 Observed by Firsoff (Somerset, England, 6.5" reflector, x200) "Area showed a westward yellow smear, looked darkish in red, indicating presence of green." NASA catalog weight=4 (high). NASA catalog ID #614. ALPO/BAA weight=3.
Aristarchus 1972 Oct 21 UT 2:10-22:45 observed by Schnuchal (52.5N, 13.25E, 600mm f/11.7 reflector, T=1, S=3) "Bright spot with maximum intensity at 22:10 UT diminution in brightness well observable" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984),p53-61. ALPO/BAA weight=1.
Aristarchus-Herodotus 1969 Jan 03 UT 03:20-03:50 Observed by Taboada (Mexico) "Brightness between craters dimmed at 0345. Change in colouration in N. part of Aris. -- gray & slightly pinkish. Became more remarkable at 0350 in almost all the extension of the cleft, (Sch. Vall. ?)." NASA catalog weight=3. NASA catalog ID #1114. ALPO/BAA weight=3.
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.
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.
Aristarchus 1973 Sep 11 UTC 20:48-21:06 observed by Pasternak (53deg 20'N, 7deg 30'E, 75mm reflector T=1, S=3) "reddish colours at the S of Aristarchus from 20.48-21.00 U.T., area spread to the region E of the crater at 20.57 U.T., disappeared there at 21.04U.T., no colours after 21.06 U.T." - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61. ALPO/BAA weight=1.
G.Amery (Reading, UK, seeing=II) saw a brilliant white rim, bands and central peak. There was also a clearly seen white glare like feature over the ESE wall that had a direction opposite to the crater interior bands. Cameron states that Foley says that this is usual. High CED brightness readings obtained. M.Cook of Frimley, UK, took CED measurements at 23:35UT and recorded a brightness of > 4.9. Reported a reversal of spurious colour - Cameron suspects that this was a local effect. No spurious colour noticed by anyone else. However the brightness of the crater was confirmed by other observers. Mosely suspected a brightness change on the inner east wall at a relative position of 8 O'Clock. Cameron 2006 extension catalog ID=259 and weight=4. ALPO/BAA weight=3.
Plato 1967 Feb 24 UT 04:21 Observed by Kelsey (Riverside, CA, USA, 8" reflector?) Using an Eng. moon blink device, discovered red brightest on NNE wall summit - duration 10min. NASA catalog weight=3. NASA catalog ID #1017. ALPO/BAA weight=3.
Aristarchus 1961 Jun 27/28 23:00?-01:00? Observed by Granger & Ring (Italy). "Enhancement of Spectrum in UV at CaII similar to May obs." NASA catalog weight=5. NASA catalog ID #741. ALPO/BAA weight=3.
Enhancement of spectrum in UV and CaI recorded on photoelectric spectrometer scans by Grainger and Ring in Italy. Effect seen on Aristarchus and a ray near Bessel (approx 17E, 22N). Cameron 1978 catalog ID=740 and weight=5. ALPO weight=3.
Aristarchus 1976 Jun 12 UT 05:21 Observed by Bartlett (Baltimore. MD. USA, 4.5" reflector, 40-225x, S=5, T=3, "Deep viol. tinge in N. 1/2 of nimbus. Faint blue-viol. radiance (gas ?) on E. - NE wall along crest. No color elsewhere, nor on plateau m." NASA catalog weight=4 (high). NASA catalog ID #1435.
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.
Proclus 1955 Aug 03 UTC 04:13-04:40 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=5, T=5) "Floor blackish 2 intensity but in green filter assumed a distinctly mottled or flocculent appearance -- seen only in green. Neither blue nor red had any effect, but on previous eve. green light had not produced such an appearance." NASA catalog weight=4 (good). NASA catalog ID #602. The ALPO/BAA weight=3.
F. Graham took some photos of the Cobras Head and found a blue cloud about 50 km in diameter and scattering light - Cameron says that this indicates high density. Darling found the Cobra's Head obscure and variable "clear and bright to diffused". Cameron was alerted observed (02:40UT) variations with periods of approximately 30 seconds, and thought that she could see a red tinge on the east rim of Aristarchus - checks elsewhere found no other colours. Darling found that a blue filter enhanced the effect and a red filter made it disappear. There was a blink at 02:55UT but no blink in the Cobra's Head, which looked fuzzy and lacking in detail. The effect was confirmed by Weier, who also saw two dark spots in the Cobra Head in blue but not in red light. The brightness of the Cobras Head was 6.0, Herodotus floor 5.5, NW wall 7.5, South wall, 7.0, Aristarchus south wall 9.0, west wall 9.0, south wall 7.0, East wall 8.0, and the central peak 10.0. Observer details were as follows: Darling (Sun Praire, WI, USA, 12.5" reflector, x159, S=9/10). D. Weier (Sun Praire, WI, USA, 12.5" reflector, x159, S= 9/10), W. Cameron (Sedona, AZ, USA, 8" reflector x110 and x220, T=6 and S=6) F. Graham (E.Pittsburgh, PA, USA, 7" refractor, thin haze). Cameron 2006 catalog ID=415 and weight=5. ALPO/BAA weight=4.
Aristarchus vicinity 1842 Oct 18 UT 23:00? Observed by Gruithuisen (Munich, Germany) "Mingling of all colors in small spots in W. & NW of crater. (interposition of year dates? was # 101 --1842 prob. correct." NASA catalog weight=4. NASA catalog ID #121. 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 1897 Oct 10 at UT 19:00 Pickering (Cambridge, Mass. USA, 15" refractor?) observed in Shroter's valley and the vicinity, "Variations in vapor col. change in direction of cloud rising from F is marked (time est. fr. given colon.)" The Cameron 1978 catalog ID=292 and the weight=3. The ALPO/BAA weight=2.
Near Censorinus 1964 Apr 26 UT 20:00? Observed by Hopmann (Czchoslovakia?) "Surface brightening somewhat similar to Kopal and Rackham in #779" NASA catalog weight=3 (average). NASA catalog ID #810.
Archimedes 1940 Aug 18 UT 03:25 Observed by Haas (NM?, USA, 12" reflector?) NE outer wall had I=5.0, but was I=2.5 on June 20 (see #467) (similar colong.)" NASA catalog weight=4. NASA catalog ID #471. ALPO/BAA weight=2.
Proclus 2002 Mar 29 UT 05:27-05:36 Observed by Darling (Sun Praire, WI, USA, 12.5" f/5 Newtonian, +Rotating polaroid visual densitometer) "Observations made following telephone alert call about Brook's report. Aristarchus, Proclus and Censorinus monitored for brightness variations from 04:41-05:37UT. Apart form a change in transparency due to cirrus cloud at 05:11-05:18, there were significant dimmings of the brightnesses of Proclus at 05:27. Aristarchus remained constant - this suggested that Clive Brook's earlier report was not a TLP in Aristarchus, but possibly in Proclus which he was using as a comparison" ALPO Lunar Section Report. ALPO/BAA weight=3.
Censorinus 2002 Mar 29 UT 05:27-05:36 Observed by Darling (Sun Praire, WI, USA, 12.5" f/5 Newtonian, +Rotating polaroid visual densitometer) "Observations made following telephone alert call about Brook's report. Aristarchus, Proclus and Censorinus monitored for brightness variations from 04:41-05:37UT. Apart form a change in transparency due to cirrus cloud at 05:11-05:18, there were significant dimmings of the brightness of Censorinus at 05:36UT. Aristarchus remained constant" ALPO Lunar Section Report. ALPO/BAA weight=3.
Manillus 1955 Aug 03 UTC 21:00 Observed by Firsoff (Sommerset, England, 6.5" reflector, x200) "Maniluus very bright in all colors, especially blue, extraordinarily so" NASA catalog weight=4 (good). NASA catalog ID #602.
Timocharis 1955 Aug 03 UTC 21:00 Observed by Firsoff (Sommerset, England, 6.5" reflector, x200) "Crater was bright in blue, seemed large & diffused." NASA catalog weight=4 (good). NASA catalog ID #602.
On 1978 Aug 19 at UT02:45-04:00 Porter (Naragansetts, RI, USA, using a 6" reflector, Seing = 6/10) noticed blue on the north east corner of Aristarchus and an orange glow on the south east wall. They detected no movement or change in brightness. The observer used both eyes, to make sure it was not an eye defect, and three filters: red Wratten 25, blue Wratten 82 and Violet Wratten 47. Porter found that the colours faded for a duration of 5 minutes and then returned. Their right eye gave a good view and using their left eye they suspected that it was 0.5 steps brighter than the remainder of the crater. The suspected colour remained visible, even under moments of good seeing conditions. The colour eventually faded over time and was eventually gone. Porter reportd seein gcolour here on the following night. Apparently other bright spots showed no colour. Fitton suggests that the filters used confirm that the south east wass was definitely red in colour. The Cameron 2006 catalog ID=37 and the weight=0. ALPO/BAA weight=1.
Aristarchus 1973 Nov 10 UTC 20:00? Observed by Coates (England, 8" reflector x200, Moon at gigh altitude above horizon). "Attracted to crater because of an orange hue extending towards Herod. Has seen this at other times. Thinks not a LTP, but actual color on ground."NASA catalog weight=2 (low). NASA catalog ID #1381.
On 1988 May 11 (UT 20:30-20:55) C. Brook (Plymouth, UK, 60mm refractor, x28) found Aristarchus to be brighter than he would have expected. Compared to Proclus and Tycho. He observed from 20:55-22:38 and found it to be normal in brightness over this time. The ALPO/BAA weight=1.
Aristarchus-Herodotus 1969 Jan 04 UT 03:00-03:45 Observed by Taboada (Mexico) & Corralitos Observatory (Organ Pass, NM, USA, 24" reflector + Moon Blink) "Brightness increased slightly around Herod. & cleft (S.V?) became darker than previous day. The dark gray & pink formed yellowish at 0345h in whole region of Aris. Bluing around crater in Corralitos MB (photos?) (confirm. of activity at Aris.?)" NASA catalog weight=5. NASA catalog ID #1115. ALPO/BAA weight=3.
Aristarchus-Herodotus 1969 Jan 04 UT 03:00-03:45 Observed by Taboada (Mexico) & Corralitos Observatory (Organ Pass, NM, USA, 24" reflector + Moon Blink) "Brightness increased slightly around Herod. & cleft (S.V?) became darker than previous day. The dark gray & pink formed yellowish at 0345h in whole region of Aris. Bluing around crater in Corralitos MB (photos?) (confirm. of activity at Aris.?)" NASA catalog weight=5. NASA catalog ID #1115. ALPO/BAA weight=1.
Observed by Bartlett (Batimore, MD, USA, S=4, T=5) "E.wall? blue glare. He was uncertain @it. Couln't focus it. Herodotus unaffected." NASA catalog weight=4. NASA catalog ID 581. ALPO/BAA weight=2.
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.
P Moore, Selsey, Sussex, UK, used a 5" x250 scope and between 23:50UT on Jul 1st 1977 and 00:10UT on Jul 2nd 1977 observed Aristarchus. The south wall of the crater was reddish, extending down to the outer south east wall (IAU). However seeing was no better than III-IV and he was 99% sure that the colour was spurious. His report was submitted only in case any other observers reported something similar. ALPO/BAA weight=1.
Aristarchus was not normal, but all the following features were: Mare Crisium, Proclus, Sinus Iridium, Grimaldi, and Tycho. Observed by Mellor and Fitton, UK. Observer notes that Aristarchus is brighter than Tycho when normal. Estimated variation was 25%. However the Moon was low and the Moon was yellow. Despite this the observer decided that the effect was real. Cameron 2006 extension catalog ID=32 and weight=2. 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 1955 Oct 02 at UT 05:30-05:55 Bartlett (Baltimore, MD, USA, 3.5" reflector, x100, S=7, T=5) observed the following in Aristarchus crater: "Viol. gl. on E, NE rim, over EWBS resembled a viol. mist. Crater itself was hazy, could not get a sharp focus". The Cameron 1978 catalog ID=615 and weight=4. The ALPO/BAA weight=2.
Mobberley noticed that Torricelli B was bright and had an even brighter spot on the inner north wall. The observation was made from UT19:45- 21:40 using visual and video techniques. There was also a bright region NNE of Toricelli B, that was noticed. Foley examined the video and found that the crater faded in brightness over time and also the bright area to the NNE was not as bright on video as had been seen visually. Foley speculates that because the CCD camera was sesnitive to the near IR that maybe the spot was blue?. Foley observed from 21:12-21:21UT and also saw the bright spot on the inner north wall - but saw a blue halo around the crater. Response in blue filter, darkening over whole region. Brightness measures with a crater extinction device (CED) indicated that the crater was 80-85% the brightness of Censorinus. There was a bright area NNE of the region. M. Cook observed 22:10- 22:16UT (15cm reflector and seeing III-IV) and also saw that the crater was very bright indeed with a spot NNE of the region (same position as 28/28 1985 observation) - suspected that the crater might have been brighter than Censorinus, but judgement effected by seeing. In a blue filter the crater dulled leaving the bright spot prominent (but only during a good moment of seeing) - therefore had some suspicion of seeing effects. At 01:00-01:04UT M. Cook used a 12" reflector on the area, but the seeing was even worse - but did manage a check of the brightness of Torricelli B to Censorinus and now made it one quarter of that of Censorinus and no sign of the crater dimming in the blue as had been seen earlier in the 6" refletor. A. Cook (Frimley, seeing V) at 21:15UT (Dec 27) thought that Torricelli B looked normal and saw no colour. At Dec 28 at UT 00:02-00:25 A. Cook obtained some CCD images through red+IR (Wratten 25) and IR (Wratten 87) but found no colour differences, though there was a very slight hint that a brightness fade may have occurred between those two observing times. Note that this report does not have an entry in the Cameron 2006 Extension Catalog. The ALPO/BAA weight=4.
Torricelli B 1983 Jan 29/30 UTC 20:35-02:30 Observed by Foley (12" reflector, seeing Antoniadi II, Transparency=good, no spurious colour seen), Moberley (14" reflector, seeing Antoniadi II, transparency excellent, spurious colour strong), Cook, J & M (12" reflector, seeing Antoniadi II-III, transparency moderate). All observers based in southern England. "Initially crater brightest feature on the Moon, then it faded. Strong colour also seen by all observers e.g. green-blue to violet. Report of observations written up in JBAA Vol 100, No. 3, p117 123, (2000) - probably one of the best reorted TLP". The Cameron 2006 catalog ID=198 and weight=5. The ALPO/BAA weight=5.
On 1983 Jan 29/30 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.
Aristarchus 1976 Aug 11 06:44 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector, 45-300x, S=4-3, T=4) "Pale viol. radiance (gas?) on plateau m. Dark viol. tinge on nimbus. C.p.=10 deg walls=8deg, & all of floor=8 deg. W.wall out of focus due to haziness (gas?)." NASA catalog weight=4 (high). NASA catalog ID #1441.
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 1992 Jul 16 at UT 03:32-09:31 D. Louderback (South Bend, WA, USA, 3" refractor, x134) detected yellow on the southern rim of Aristarchus, and the colour looked "darker" through a yellow filter and the region was "duller" than normal. The region was 1 intesnsity step brighter on the 2nd measurement, "on all points in it". The comet tail-like ray had 3 sections and was "mottled" in appearance. Finally the Cobra Head region had possible variations in brightness. The cameron 2006 catalog ID=451 and the weight=3. The ALPO/BAA weight=2.
Copernicus 1975 Jul 24 UT 22:52 Observed by Robinson (Teignmouth, England, 10" ? reflector or 4" refractor?) "Copernicus indistinct in red and blue filters" NASA catalog weight=3 (average). NASA catalog ID #1409.
Fracastorius 1975 Jul 24 UT 22:52 Observed by Robinson (Teignmouth, England, 10" ? reflector or 4" refractor?) "Fracastorius had a blink (red or blue?)" NASA catalog weight=3 (average). NASA catalog ID #1409.
Tycho 1975 Jul 24 UT 22:52 Observed by Robinson (Teignmouth, England, 10" ? reflector or 4" refractor?) "Tycho indistinct in red and blue filters" NASA catalog weight=3 (average). NASA catalog ID #1409.
Aristarchus 1954 Nov 12 UTC 02:20-03:05 Observed by Bartlett (Baltimore, MD, USA, S=5-6, T=3-4) "Blue-violet glare on EWBS & whole length of E. wall. Suspected viol. tint on VA; uncertain @ m" NASA catalog weight=4. This had faded later by 05:07. NASA catalog ID #582. 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.
Alphazen Alpha 1972 Oct 23 UT 22:10?-22:13? (Stoke-on-Trent, UK, 21cm Newtonian, x217, seeing very good). Flickering colours seen on the north field of Alhazen Alpha mountain. Above UTs estimated by the observer, but the duration of the effect was 3 minutes. Colouration centred on the hills that run north to south between Mare Anguis and Mare Crisium. The colour alternated from east to west about 2 or 3 times per second. The colour was not apparent to the north or south, or indeed on any other features. Telescope field of view moved, but effect stayed in the same place on the Moon. Moon't terminator scanned for 15 minutes afterwards, but the effect did not recur. The colour seen was mostly red, with a band of orange, and a strip of yellow nearest the hills, the proportions being 6:2:1. The bands seemed to arc up steep above the Moon's surface and flatten out over the mare surface either side of the hill features. No filters were used in the observation. Observer suspects some kind of diffraction spectrum to explain the larger dispersion in the red end of the spectrum. ALPO/BAA weight=3.
Schroter's Valley: Cobra Head 1824 Nov 08 UTC 00:00? Observed by Gruithuisen (Munich, Germany) "Mingling of all colors in small spots. Described a violet glimmer near Cobra Head & plateau that spreads; starts just after sunrise. Cameron 1978 catalog weight=4 and catalog ID=103. The ALPO/BAA catalog weight=3.
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.
Plato 1870 Mar 19 UT 00:00? Observed by Gledhill? (halifax, England, 9" refractor) "Same group (of craters) as in Feb. illuminated. (if phase same as Apr. 1970 then date is Mar 19" NASA catalog weight=2. NASA catalog ID #165. ALPO/BAA weight=1.
Proclus 1958 Jul 03 UT 06:18-07:15 Obsrved by Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=5, T=3) "Proc. C a remarkable phenom. of which he is certain. At beginning of obs. C was 5 deg bright & conspicuous -- its normal appearance at or nr. SS. At 0620 it suddenly became dull so as to almost vanish. By 0640 C was very dull-- 3.5 deg. An indep. check was made at 0715 with same instru. & it was still at 3.5 deg. Note C does not mean Proclus C but a notation system developed by Bartlett for features in and around Proclus". Cameron's 1978 NASA catalog weight=4 (high). Cameron's 1978 NASA catalog ID #688. ALPO/BAA weight=3.
On 2006 Jan 16 at 05:44UT T. Bakowski (Orchard Park, NY, USA) observed a round dark object in 1 of 21 frames from a camera. The exposure was 1/250th sec. Seeing conditions were bad. The dark spot is east of Mons Vinogradov, at or near crater J. ALPO/BAA weight=1.
Schickard 1939 Aug 02 UT 00:01 Observed by Moore (England, 12?" reflector) "Floor milky, walls almost vis. 2 bright pts. in area. not extending to extreme w.part of floor" NASA catalog ID #456. NASA catalog weight=4. ALPO/BAA weight=3.
On 1990 Dec 03 at UT23:00-01:30 M.C. Cook (Frimley, Surrey, UK) noticed that the central peak of Aristarchus was quite bright and extended to a circular region in the east in the crater "sprout" area - Cameron suggests that this is Bartletts self defined EWBS area?. Beyond the rim to the east was very bright. However no colour effect was seen in filters. A sketch was supplied. Cameron notes the coincidence of perigee and full Moon. The Cameron 2006 catalog ID is 416 and the weight=3. The ALPO/BAA weight=1.
Proclus 1955 Oct 03 UTC 02:10-02:40 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180, S=1-0?, T=4) "Proc. D (his ID) normally a bright white spot on E. floor disappared as a dark spot, I=2.5 & barely disting. from 3deg gray. In July lunation it was seen as normal bright spot at col. 347.57, 359.36, 36.74 & 61.83 but vanished after 61.83. C.p. abnormally dark & close to floor intensity. At 1st failed to find it I=2.5 whereas it is normally 5.0." The cameron 1978 catalog ID=616 and weight=4. The ALPO/BAA weight=2.
On 1993 Sep 02 UT2250-23:30 C. Brook (Plymouth, UK, 70mm refractor, x100, seeing=III) noted that Cleomedes A was exceptionally bright and compared it with plate 4C in Henry Hatfield's Atlas. He had noticed it was bright earlier in the evening, but his attention was drawn to it at 22:50UT. By 23:07UT it was dimmer, with patches of cloud coming up and a slight deterioration in seeing. By 22:30 UT the crater was no longer exceptionally bright. The Cameron 2006 catalog ID=466 and weight=5. The ALPO/BAA weight=1.
East of Plato 1961 Jun 29/20 23:00?-01:00 Observed by Granger and Ring (both in Italy) "Enhancement of spectrum in UV & Ca I recorded on photoelectric spectrometer scans" NASA catalog weight=5. NASA catalog ID #742. ALPO/BAA weight=3.
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
On 1978 May 24 at 00:40-01:05UT P. Moore (Sussex, UK, and using a 12.5" reflector at x300-400 - seeing IV) saw colour in Aristarchus (red on the south east wall and southern "horn" of the crater. He could not detect colour elsewhere, but felt that the effect might have been spurious colour. With the increasing altitude of the Moon the light effect decreased. Moore detected red the next night as well (May 25th) and on May 27th, but it was not present on May 29th. The Cameron 2006 Extension catalog ID=33 and the weight=0. The ALPO/BAA weight=1.
On 1955 Oct 03 at UT 04:45-05:05 Bartlett (Baltimore, MD, USA, 3.5" reflector, x100, S=5, T=3) observed the following in Aristarchus crater: "Whole cdrater hazy, couldn't focus it. Herodotus unaffected". The Cameron 1978 catalog ID=617 and weight=4. The ALPO/BAA weight=2.
E. of Picard 1879 Nov 01 UT 00:00? Observed by an unknown observer (England?) "Bright spot. (Fort admits he has several more of these records of LTP, but does not give them because they don't fall nr. Mars'opposition which he tho't was cause of them.) Elevation rising N- S, with shading toward terminator." NASA catalog weight=3 (average). NASA catalog ID #214.
Peirescius 1985 Dec 28 UT ~20:56 (Col. 112.5) H. Hill (UK) observed that this crater was piercingly bright. Repeat colongitude observations on later dates failed to show a similar effect. ALPO/BAA weight=2.
Four bright spots seen in Mare Crisium. There was also peculiar behaviour of the terminator. Source: Midlehurst 1968 catalog TLP ID=16. Ref Web 1962 p62-76. The ALPO/BAA weight=1.
Gassendi 1940 Jul 22 UT 05:00 Observed by Haas (NM?, USA, 12" reflector?) "Largest bright spot in SE part of floor had I=8.6, but 6+ on other dates. (see #472, 474 & 475). (8.6 is normal?)" NASA catalog weight=4. NASA catalog ID #469. ALPO/BAA weight=3.
Proclus 1956 Jul 25 UTC 06:16-06:33 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=3-5, T=4) "C.p. distinctly vis. within floor shadeo, est. 5 deg bright but no trace of it at col. 122.37deg in Oct, '55(Oct. 4?)." NASA catalog weight=4 (good). NASA catalog ID #645. ALPO/BAA weight=2.
On 1990 Jan 14 at UT 01:14-01:55 M.C. Cook (Frimley, UK, seeing=poor) observed that Aristarchus did not appear normal for this illumination. the northern half of Aristarchus was "2x>" than the southern half of the crater. There were two white patches of apron material near to the crater Herodotus that were 50% of the brightness of the southern half of Aristarchus. Furthermore the southern half of Aristarchus had a circle - "dull patch on inner S wall with a bright point shining through it. (Bartlett's EWBS?)". The Cameron 2006 catalog ID=389 and the weight=4. The ALPO/BAA weight=2.
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.
Cleomedes Alpha 1993 Sep 03 UT2200-22:20 G. North (UK, 18.25" reflector, x86 & x144) observed it to be a strikingly brilliant 'splodge' seen in the mostly shadow filled interior of Cleomedes, and around this splodge was a faint halo extending symetrically in an eastwards direction. The splodge was the mountain Cleomedes Alpha. Strangely no shadow from the mountain was seen to be cast onto the halo on the east. Observer alerted other observers by phone, and upon returning to the scope found that the splodge had faded in brightness and continued to fade over the next hour as one would expect from a mountain at sunset. Some heavy spurious colour was present. J. Cook & M. Cook (Frimley, UK) observed at 22:20-22:25 and found the bright splodge, but no halo. M. Cook re-observed later and confirmed normal fading of splodge. Roscoe observed from 00:30UT next day, but by that time Cleomedes Alpha had set and was no longer visible in the shadow filled floor. S. Beaumont had observed earlier at 20:00 but had recorded all as normal in Cleomedes. The Cameron 2006 catalog ID=466 and weight=5. The ALPO/BAA weight=2.
Madler 1962 Apr 22 UTC 08:24 Observed by Wildey, Pohn (1st measurement) (Mt Wilson, CA, USA, 60" reflector with photometer) "Photometric measures show change in brightness from Vmag=3.79 to V=4.40. The average brightness for age 17d is V=3.99. Crater faded from .2 mag brighter than av. to .4 mag. fainter (@1.5 times fainter) than av., a range of .6 magnitude, or @ 1.5 times diff. in brightness". NASA catalog weight=5 (very high). NASA catalog ID #757.
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.
On 1961 Jul 01 at UT 00:00? an unknown Miranova (Russia or Israel) obtained some spectral photometry of lunar objects. A spectral plate in 425 -> 500nm bands. The Cameron 1978 catalog ID=743 and weight=5. The ALPO/BAA weight=3.
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
Plato 1938 Jul 15 UTC 06:50 Observed by Haas (12" reflector?) "Floor -- definitely green under same conditions as 5/17/38 (see #437). Kaiser after 90 obs. couldn't find any regularity to appearance of the brown color in Plato. I=3.7 comp. with I=2.0 on 6/15/38 (see #439-- color of ground?)." NASA catalog weight=4 (good). NASA catalog ID #440.
Madler 1962 Apr 22 UTC 11:48 Observed (2nd mesurement) by Wildey, Pohn (Mt Wilson, CA, USA, 60" reflector with photometer) "Photometric measures show change in brightness from Vmag=3.79 to V=4.40. The average brightness for age 17d is V=3.99. Crater faded from .2 mag brighter than av. to .4 mag. fainter (@1.5 times fainter) than av., a range of .6 magnitude, or @ 1.5 times diff. in brightness". NASA catalog weight=5 (very high). NASA catalog ID #757.
On 1897 Oct 13 at UT 20:00 Pickering (Cambridge, Mass. USA, 15" refractor?) observed in Shroter's valley and the vicinity, "Variations in vapor column" The Cameron 1978 catalog ID=292 and the weight=1. The ALPO/BAA weight=1.