Plato 1976 Sep 20 UT 20:25 Observed by J.H-Robinson (Teignmouth, UK, 26cm Newtonian, Wratten 25 and 44a filters, x200, seeing unsteady, Moon low). Light areas in Plato were clearer in red than in blue light. ALPO/BAA weight=1.
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 1983 Feb 17 at 19:00?UT G. Amery (Reading, UK) noticed that Aristarchus was not visible in Earthshine, despite other less prominent features being seen. The observation was confirmed by other observers. The Cameron 2006 catalog extension ID=204 and the weight=2. The ALPo/BAA weight=2.
On 1983 Feb 17 at 19:00?UT G. Amery (Reading, UK) noticed that Messier was ill-defined. The Cameron 2006 catalog extension ID=204 and the weight=2. 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.
On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that the southern Mare Crisium appeared to be obscured by a pale grey haze. Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.
On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that Toricelli B was steel blue in colour and this spread 10-15 miles outside the crater. This was odd because Torricelli B was only 6 miles in size. Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.
On 1983 Apr 19 at 21:45UT M.C. Cook (Frimley, UK) reported that Censorinus' exterior white patch was grayish at this time and there was a "momentary glow outisde the crater to the North West. The Crater Extinction Device brightness measurement for Censorinus was 4.0 whereas Proclus was 4.4. Cook was expecting a lower CED brightness measurement. Foley notes that Censorinus is usually brighter than Proclus. On 1983 Jan 29 Chapman obtained a very high brightness measurement for this spot. The Cameron 2006 catalog extension ID=212 and the weight=3. The 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 1979 Jul 01 at 22:00?UT D.J. Raden (Fort Meade, FL, USA, using a 10" reflector) detected a flare near to Halley (5E, 9S) visually with the eye and it lasted about 3-4 min - a sketch was made. However it was also found on one photographic slide taken with an exposure of 35 seconds. The observer comments that visually the flare was not as bright as it appeared in the photograph. In an area near Halley. The Cameron 2006 catalog extension ID=57 and weight=5. The ALPO/BAA weight=4.
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 īn 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.
nr. Plato in Teneriffe Mountains 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." NASA catalog weight=4 (high). NASA catalog ID #129. ALPO/BAA weight=3.
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 1952 Feb 04 at UT 02:00? 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.
Vallis Alpes 1983 Jun 18 UT 22:01-22:23 P.Madej (Huddersfield, UK, 77mm refractor, x83,x250, seeing II-III, transparency fair). After studying the whole length of this valley, the observer saw a change in "albedo" and a small change in colour of the valley floor near to the Plato end. This colour was not seen in a yellow Wratten 15 filter but was noted in a purple Wratten 35 filter, and was strong in a red filter. Also the crater Trouvelot was not seen at x250 with a x2 Barlow.Wratten 25. ALPO/BAA weight=1.
Daniell 1983 Jun 18 UT 22:06-22:25) P.Madej (Huddersfield, UK, 77mm refractor, x83,x166, seeing II-III, transparency fair). Noted on the inside W eall a faint red rose like glow (with a diameter? about it). The red glow varied in brightness with a period of about 2 minutes. It looked somewhat brighter at x166. The glow was still visible when the observation ended at 22:15 ALPO/BAA weight=1.
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.
Menelaus 1969 Nov 17 UT 16:00-19:00 Observed by Rubens de Azevedo,A. Monghilhot, E. Leal e Jose Fernandes (Joao Pessoa, Paraiba, Brazil, 8" and 10" reflectors) "Entire crater of Men. illum. by pale greenish light. (Azevedo)" NASA catalog weight=5 NASA catalog ID #1211a. ALPO/BAA weight=4.
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 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.
On 1995 Sep 03 at UR19:40-20:15 P. Moore (Selsey, UK, 15" reflector at x400) observed that the floor of Plato was much darker than he would normally expect and futhermore no interior craterlets were seen. there was however a white patch that was barely visible at the location of the central craterlet should have been. G. North (UK) attempted to observe nut the Moon was too low and seeing terrible. F. Doherty reported Plato normal. Cameron 2006 catalog ID=475 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.
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 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.
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.
Plato 1949 Mar 09 UT 02:00-03:00 E.J.Reese (6" reflector x240) and one hour later T.R.Hake (5" refractor x300) both unable to see any detail on the floor of Plato, despite both being able to see a "difficult to see" cleft near to the crater Connon. Reese was able to see detail under similar illumination back in 1948 and 1947 and saw the floor craterlets in Plato clearly then. ALPO/BAA weight=1.
On 1989 Feb 15 at UT 03:15-03:30 M. Dixon (Palenque Ruins, Mexico, 7x35 binouculars) observed a point of light that was very bright in or near Mare Humorum. It was visible for 5 minutes then vanished. The Cameron 2006 catalog ID=353 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 (average). NASA catalog ID #1448.
On 1989 Feb 16 at UT02:46-03:01 D. Darling (Sun Praire, WI, USA, 3" refractor, x140, seeing=6/10) found that the brightness of the rim of Proclus was 9.0 (normal?). The Cameron 2006 catalog ID=354 and the weight=0. The 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.
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.
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.
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.
On 1989 Feb 17 at UT00:55 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x248) found that the brightness of the rim of Proclus was 9.0, the north west wall to be 9.5, the west wall to be 5.2, and the east wall 8.2 (normal?). The Cameron 2006 catalog ID=355 and the weight=1. The 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.
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.
Proclus 1976 Sep 06 UT 02:00 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector 45-300x, S=3, T=5) "Nothing vis. on floor of 2deg brightness. Usually floor ray & Proc. A are vis. at this col. & c.p. is 5 deg bright. (must have been 2 deg tonite)." NASA catalog weight=4. NASA catalog ID #1450.
Foley, Kent, UK noted that the floor was slate blue-grey with no colour seen elsewhere. 12" reflector used, seeing=II. Cameron 2006 extension catalog ID 131 and weight=1. ALPO/BAA weight=1.
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.