On 1968 Dec 23 at UT 08:40-08:45 Osawa (Kyoto-Ken, Japan, 8" reflector, x167 and x212, S=3-4, saw Taruntius crater (and a wrinkle ridge) to be bright through a red filter. Cameron mentions that this was during the Apollo 8 watch. The Cameron 1978 catalog ID=1108 and weight=3? The ALPO/BAA weight=2.
Aristarchus 1971 Oct 22 UT 19:43-19:56 A.Mackay (Hatton, UK, 15cm reflector, x50) observed a pale pink on the W(IAU?) half of Aristarchus and a pale shade of blue on the E(IAU?) half. The effect faded from 19:56UT onwards and had gone 2 minutes later. No information on whether other craters exhibited this effect, given. Burgess, who observed later did not see any colour. ALPO/BAA weight=1.
On 1980 Apr 16 at UT 20:00-22:20 P.W. Foley (Kent,UK, 12" reflector, seeing II-III) found that Aristarchus could barely be seen. Therefore it was not possible to take CED brightness measurements. Strangely Cassini, Kepler, Plato and Mons Pico could be seen. However at 20:16 UT St Elmo fire-like flashes were seen coming from the interior south east corner of Aristarchus at 20:16 UT and then the brightnesss spread to fill the rest of he crater. Duration was about 5-20 sec (Cameron comments: atmospheric effects?). The crater reached peak brightness at 20:17UT (CED reading of 8). Foley comments that the crater rim and area 16-24km around this (including Herodoyus) had a translucent radiance. However at 20:25UT the brightness reduced (including Herodotus) down to CED 3, however the blue radiance remained. At 21:07UT Foley saw a star-like flash in the south east of the floor (CED 3-4). Grimaldi was found to be of constant brightness by comparison using the CED Brightness=2). At 20:20UT Amery (Reading, UK) found Aristarchus to be a well visible circular fluorescent patch. At 20:40 Amery found the region between Aristarchus and Herodoutus was glowing - appeared almost as a flare from Aristarchus and by 20:55UT there was also a flare to the west of Aristarchus. At 20:27 Madej (Huddersfield) detected only a slight glow from Aristarchus and the region affected was small - indeed the glow had gone by 20:46. At 20:40 Ricketts detected a "continuous blue emission" - this had a cycle of 5- 10 sec (Cameron comments: atmosphere?). Saxton (Leeds, UK) detected at 20:42 "translucent effects and variations" at 20:42 noticed a star-like point. At 19:00-21:40 M. Price (Camberley, UK) decided that Aristarchus was fainter in brightness than normal. Peters observed a faint nebulous spot at at 20:25-21:00 that changed in brightness in an irregular way. Cameron 2006 catalog ID=86 and weight=5. ALPO/BAA weight=3.
On 1980 Apr 18 at UT 19:00-22:30 P. Madej (Huddersfield, UK) saw two very bright flashes on the eastern edge of Littrow, spaced 40 seconds apart. Ricketts observed blue flashes approximately 20-30 sec apart and Foley saw faint blue. Cameron 2006 catalog ID=86 and weight=5. ALPO/BAA weight=3.
Cape Agarum 1967 Jan 14 UT 17:17-17:35 Observed by Middleton, Colchester, England, 4" refractor, x240, S=G) "Cape was hazy or obscured whereas Piccard, Pierce, & Cape Olivium were quite clear. Has seen this area obscured many times" NASA catalog weight=3 (average). NASA catalog ID #1008.
On 1969 Jan 22 at UT 00:10-00:30 Kilburn (England, UK, 6" reflector x192, English Moon Blink device) observed a colour blink on the outer east wall of Gassendi. Cameron says: "in dark!". The Cameron 1978 catalog ID=1117 and weight=3. The ALPO/BAA weight=2.
On 1980 Apr 18 at UT20:55 G. Amery (Reading, UK, 10" reflector, 50- 200x, seeing III) individual features not seen near Cassini. Cameron 2006 catalog ID=86 and weight=5. ALPO/BAA weight=1.
1837Mar11 UT 15:27 (20:48 local time) T.G. Taylor (Madras, India) whilst observing a star being occulted, noticed a 6th magnitude nebulous spot where Aristarchus should be. Had never seen anything quite as bright as this on previous occasions (except the day before). ALPO/BAA weight=2.
Atlas 1968 Dec 24 at UT 09:15-10:45 Osawa (Kyoto-Ken, Japan, 8" reflector, 9mm Ortho, Seeing=5, later worse) saw a slight brownish hue on the northern shadowy bed in the crater. It was difficult to see the difference between the glow and chromatic aberation of the eyepiece. The tint never showed up in filters. The ALPO/BAA weight=1.
On 1980 Apr 19 at UT 20:37-20:49) P. Madej (Huddersfield, UK, 77mm refractor, x83 and x111) at 20:37 UT saw a slight glow at x83, quite small in size. At 20:46UT no glow was seen at x83. At 20:49 a slight glow seen again, but unclear and illdefined - appeared larger in area at x111. Observatons ceased at 21:56 dues to clid. ALPO/BAA weight=1.
On 1980 Apr 19 at UT20:30-22:59. The following is quoted from the Cameron 2006 catalog.... "(Buczynski) alerted by colleague (Greenwood) who used filters W15 (IR), W25 (red), W44A (blue), & W58 (UV) and had located a possible blink in it. (Bucz) used W15, W44A & W25. C.P was very bright in W25 (red), dull but vis. In W44A (blue) & floor was noticibly darker in W44A than in W25. Bright cp vis. In W15 & floor was of a light shade. Other craters checked for color, none found. In 44A floor lost some definition (gas?). Sketches from Bucz. & Greenwood. (Pedler) at 2140, floor area around cp was seen in white & red as normal but blink was vis in white, darker in blue. Checks of other features were negative. (Amery) small dark center & small dark area - not shadow - under S wall. N wall obscured by dark area extending N onto surrounding mare. (normal?) which was difficult to focus (gas?). At 2155 N wall now sharper & dark area less intense. Craterlet Cameron in N wall clearly seen which was invisible 1/2 h earlier. (Saxton) whole crater flashed and blinked at 2155. Could see detail in brighter W 1/2 of crater - not seen earlier. At 2205 seeing poor, at 2215 it was normal. (Blair) at 2155 used red & blue filters & in blue it was darker than in red. W. wall not well defined. (J. Cook) saw spurious color on N & S rims. Saw a pink tinge on SE rim. (A. Cook) saw spur. Color on most craters as seeing deteriorated. Got a blink on SE region > red than blue". The Cameron 2006 catalog ID=87 and the weight=5. The ALPO/BAA weight=3.
On 1881 Sep 27 at UT 19:00 Marokwic (South Africa) observed a comet- like object pulling across the Mon. The Cameron 1978 catalog ID=225 and the weight=2. The ALPO/BAA weight=1.
In 1879 Oct 20 UT 23:00 (Local time Oct 21 9AM) Hirst (Blue Mountains, NSW, Australia) saw a large part of the Moon covered with a dark shadow that was as dark as the Earth's shadow would have been if there had been an eclipse. Cameron says that this is a confirmed observation. Note that the Moon was just before first quarter. The Cameron 1978 catalog ID=215 and the weight=4. The ALPO/BAA weight=3.
On 1969 Nov 15 at UT 02:20-03:20 Lagunas (Santiago, Chile, 10" reflector) observed some brightenings in Aristarchus during the Apollo 12 watch. The Cameron 1978 catalog ID=1209 and weight=0. The ALPO/BAA weight=1.
On 1980 Apr 20 at UT 19:25-23:43 P.W. Foley (Kent, UK, 10" reflector, seeing II-III) found that Aristarchus was very bright in Earthshine (also found on the photographs that he took), giving off a blue "incadescence", the CED brightness reading was 5. Occasionally Foley could see a star-like point in the south east corner. For comparison in brightness he used highland terrain near to Grimaldi (CED=2). By comparison, Buczynski and Lord, could not see Aristarchus. Earlier, Geenwood saw the crater easily as a star-like point with a diffuse exterior glow. Cameron says thyat this was confirmed by Buczynski and Lord (?). At 20:35UT Amery decided that Aristarchus looked brighter than normal. Pedler though described the crater as "small dim nebulous blue or blue-green" that was invisible by 20:27UT. At 20:28-22:01 Blair could not detect Aristarchus, nor could J-H Robinson at 20:40UT though he did see it at 20:55UT as both diffuse and blue. Ricketts detected a blow glow with irregularly spaced flashes of roughly 5-10 sec apart. Cook's at Frimley, UK, saw no features in Earthshine. Cameron 2006 catalog ID=88 and weight=4. ALPO/BAA weight=2.
On 1980 Apr 20 at UT20:05-21:02 J.D. Cook (Frimley, UK, 12" reflector, x60, seeing III-IV) at the start of this session found some bright spots in the area of Copernicus, and at 21:02 detected some flashes in this region. Cameron 2006 catalog ID=88 and weight=1. ALPO/BAA weight=1.
On 1980 Apr 20 at UT 19:45-22:45 M.C.Cook (Frimley, UK) - colour (probably spurious) seen on Piccolomini. Cameron 2006 catalog ID=88 and weight=4. ALPO/BAA weight=1.
On 1980 Apr 20 at UT20:27 M.Price (Camberley, UK) saw a flash in the Grimaldi-Aristarchus area. Cameron 2006 catalog TLP ID=88 and weight=4. ALPO/BAA weight=2.
On 1980 Apr 20 at UT21:12-22:45 J-H Robinson (Teignmouth, UK, 10.5" reflector, x180) found, using a Moon Blink device, evidence of colour on the flor patches of Fracastorius crater, brighter in blue than in red. Also the floor to center varied in brightness in blue and in red. Peters observed in white light and found the south east-south wall had a slight orange cast and when a Moon blink was used it was less bright in blue than in red light. M. Cook found spurious colour on the south rim and also on Mons Pico. There was a colour blink reaction on the southeast floor of Fracastorius - this was both faint and blurred and not seen in white light. A.C Cook detected the permanent blink in the south east floor of the crater at 21:47 and a fainter one in the north west (marginally brighter in red than in blue). J.D. Cook found no colour with the Moon blink device. 21:22-22:10 P.W. Foley got a strong colour reaction with the Moon Blink device - brighter in red than in blue and detected a pink colour visually on the south east wall 22:10- 22:45 (this did not give a blink effect though). Cameron 2006 catalog ID=88 and weight=4. ALPO/BAA weight=2.
On 1980 Apr 20 at UT21:38-21:50, Blair of Renfrewshire, Scotland (used an 8" reflector and seeing=III) saw three patches in Petavius and they could still be seen 7 minutes later. At 21:50UT he used a filter and found the "northern one was brighter in blue, the southern one was brighter in red and the central one was the same shad ein both filters." Cameron comments that the central patch was a permananent one. She then goes onto say that the crater is described as having dark patches that are opposite to what one would expect from Fitton's theory applied to dark features. Cameron 2006 extension catalog ID=88 and weight=4. ALPO/BAA weight=2.
On 1988 Nov 15 UT 19:15 Holmes (Rockdale, UK, 215mm Newtonian) noticed the Censorinus apron (just east of the crater and including the rim) was fuzzy but the crater was clear - a sketch was provided. A BAA Lunar Section observation.Cameron 2006 Catalog Extension ID=339 and weight=3. ALPO/BAA weight=3.
Apianus D On 2011 Oct 03 UT 21:00-21:20 F. Power (Meath, Ireland, 11" SCT) observed changing colours (blue, white, and red) on the inner western rim of this crater. He changed eyepieces and moved the scope around to look at dufferent parts of the Moon, but nowhere else exhibited anything similar. As another test he asked his wife to have a look without telling her what he was seeing. She confirmed the same effect. 5 digital camera images had been taken. Most of these were out of focus and the first one was saturated, however one of them showed a approximately 35 km long, by 11 km wide (at the north) lopsided carrot shaped orange colour to the western rim of Apianus D. No similar strong colour could be seen anywhere else on the image, nor on the other 4 images. This TLP is being given an ALPO/BAA weight of 1 as the Moon was low, but an image taken looks interesting.
On 2001 Apr 29 at UT 20:50 R. Braga (Italy) reported that without any filter, the brightness of the east wall of Torricelli B was halfway Torricelli C (faintest) and Moltke (brightest). By insering a Wratten 25 red filter though, the crater was slightly more evident. However using a blue Wratten 39A filter, the crater vanished completely, whilst Toricelli C remained. The ALPO/BAA weight=3.
Near Ross D (24E, 11N) 1964 Mar 21 UT 05:00-06:20 Observed by Harris, Crow, Cross (Whittier, CA, USA) - negative confirmation from Las Cruces. NASA catalog weight=0 (unreliable). NASA catalog ID #805. ALPO/BAA weight=1.
On 1983 Mar 21 at UT 21:05-22:00 P. Horne and J. Horne (Hertz, England, UK, 11" reflector, x180 and x330) found that Mons Piton (totally illuminated and brightest feature on the Moon - but no variability) was brighter than Aristarchus (would have been if it had been in sunlight) and the mountain was contained within a circular illuminated patch. "Brilliant white and no shadow. Size ~16km." There was no details visible but the adjacent features had distinct shadows. Hutton was also observing. Foley examined the photographs and believes that they are inconclusive. D. Mansbridge was photographing the Moon at 19:30UT and detects Piton but it is not bright. However in a photograph taken by D. Mansbrdige and 20:30UT the mountain is much brighter than any other sunward facing slopses on the northern part of the Moon's terminator. R. Mosley had been observing earlier at 18:10-19:40 and although finding the mountain to be shining briliantly beyond the terminator, he also comments that this is normal. Cameron though has seen the photographs taken and thinks it might be a real TLP. The Cameron 2006 catalog ID=208 and weight=5. The ALPO/BAA weight=2.
On 1984 Apr 08 UT 19:50 Mobberley (14" reflector, x194, seeing III-IV, Transparency Fair-Poor, Cockfield, UK) found that Torricelli B's shadow was 1/2 the way across the floor, which was normal, but that there was a very dar grey/brown shroud around the carter, out to several radii. The ALPO/BAA weight=1.
On 1988 Nov 16 at UT 18:20 M.C. Cook (Frimley, UK) observed that a ray north east of censorinus appeared to be very diffuse and this did not change during the observation. This was odd because proclus ray material remained clear. The apron material of Censorinus was diffuse E-W and the northern part was dull, but not fuzzy. The Cameron 2006 catalog ID=340 and the weight=3. The ALPO/BAA weight=2.
On 1988 Nov 16 at UT 18:20 M.C. Cook (Frimley, UK) observed that Torricelli B changed in brightness (at times), but thinks that this was due to atmospheric transparency. The Cameron 2006 catalog ID=340 and the weight=3. The ALPO/BAA weight=1.
On 1980 Apr 22 at UT20:30 R.Rohslberger (Hittfield, (near Hamburg) West Germany, 8" reflector, x170 25mm occular used, 300mm focal length?) took some photographs using projection. One of these recorded an apparent "ejecta curtain". Cameron considered lens flare, but the other photographs did not show this. If real then the plume was at a height of ~40km and the ray was ~130km. Cameron concludes that this was an impact photograph. The Cameron 2006 catalog ID=90 and the weight=5. The ALPO/BAA weight=3.
Alphonsus 1952 Nov 24 UT 18:00 A.P. Lenham (Swindon, UK, 3- inch efractor x120) noted that the usual dark spots were not visible, but floor ridges and craterlets were surperbly seen. This may not be a TLP but has been given a TLP category as it is a curious appearance and needs to be verified on a repeat repeat illumination apeparance. ALPO/BAA weight=1.
On 1987 Jan 07 at UT19:10-20:30 H.Miles of Cornwall, UK saw two bright patches were seen in Earthshine at clock positions of 4 (this patch was defined by the dark limb and the brightness faded inwards to the disk, over a short distance. "Centred at 60 deg along the limb from the north - a sketch showed approximately 10-15 deg along it") and 5:30 (this second patch was smaller and not so bright as the first patch - it was west of the north pole. P. Foley (Kent, UK) also detcted the patches and said that one was not far from the sunrise terminator. The Cameron 2006 Extension catalog gives this TLP an ID of 291 and a weight of 2. The ALPO/BAA weight=2.
On 1953 Sep 16 UT03:00 R.M. Lippert (San Diego, CA, USA, 20cm Cassegrain reflector, x90)saw a bright magnitude 1 flash on the Moon, that was probably on the east rim of Werner(?) crater. It is unclear if the observer meant it was really magnitude 1, or was what a magnitude 1 star would have looked like. The flash was yellow-orange in colour. Observation described in the "Observations and Comments" column in the December, 1953 Strolling Astronomer (Vol. 7, No. 12), on page 170. The ALPO/BAA weight=3.
Plato 1789 Jul 30 UTC 21:00? Observed by Schroter (Lilienthal, Germany) NASA Catalog Event #61, NASA Weight=2 (slightly low) Event described as: "Soon after sunrise saw a kind of fermentation on the floor which clearly resembled a kind of twilight, (due to some kind of aberration unknown to the observer?)" For further details see reference: Middlehurst, B.M., Burley, J.M., Moore, P.A. and Welther, B.L., 1968, NASA TR R-277.
Eratosthenes 1952 Nov 25 UT 16:30 A.P. Lenham (Swindon, UK, 3- inch refractor x150, Definition Good) noted that there was faint/slightly bright detail inside the interior shadow - observer comments "presumably peaks of central mountains & W. Wall ridge, but very faint" - however this is worth checking out. ALPO/BAA weight=1.
On 2009 Nov 25 UT18:42-21:03 P.Abel, T.Little and C.North (Selsey, UK, 15" reflector, seeing II-III, transparency very good), all saw visually a brownish tinge on the north west rim of Eratosthenes crater. P.Abel made a sketch and T.Little took some high resolution CCD images, some of which were through coloured filters. Checks were made for spurious colour, but none was seen elsewhere on the Moon. The eyepiece was changed but this made no difference. M.C.Cook (Mundesley) was observing with a smaller scope at the same time, but saw no colour, however observing conditions were worse. W.Leatherbarrow (Sheffield, UK) was observing with a instrumenet mid way in size, and saw a brownish tinge in the NW rim area, but saw a similar colour elsewhere and put this down to spurious colour. Normally multiple observers seeing the same thing would result in a weight of 4, however as this was only observers at Selsey and some of the evidence contradicts, I am allocating an ALPO/BAA weight=3.
Pallas-Schroter 1953 Nov 13 UTC 02:00 Observed by L.Stuart (USA) "Saw and photographed a bright spot on term. between these two craters. Used Kodak 103aF3." NASA catalog weight=5 and catalog ID #559. ALPO/BAA weight=5.
On 2012 Aug 25 UT1944-1952 Eratosthenes crater was imaged by C. Galdies (Malta,Nexstar 8SE, Philips SPC 900NC camera). 4 Registaxed images were produced covering 19:45, 19:48, 19:49, and 19:51. All but the first image, once first order spurious colour had been removed, showed orange on the shaded terraces on the western illuminated rim (similar to what Paul Abel and others saw in 2009, albeit just confined to the NW rim), and the interior floor shadow was slightly smaller in red light. However orange colour was also seen on the eastern side of mountains to the south of the crater, which infers that the spurios colour removal did not fully acomplish its main goal. The effects were not caused by the registax software as the orange colour is visible on individual images. Although probably the colour is not lunar in orgin, its explanation is not fully explaianed, therfore an ALPO/BAA weight of 1 is used for now.
On 1969 Nov 18 at UT 04:22 Loocks (Valparaiso, Chile, 12" reflector) observed a flash of light of magnitude 12. Cameron speculates a meteor and mentions the apollo 12 watch. The Cameron 1978 catalog ID=1214 and weight=1. The ALPO/BAA weight=1.
North (?) (left) Cusp 1912 Jan 28 UT 00:00 (27th 20:00 L.T.) Observed by Harris (Philadelphia? Pennsylvania?, naked eye?): Intensely black curved object 400x240km, shaped like a "crow". Cameron 1978 weight=1 (very low) and ID=334. ALPO/BAA weight=1.
Eratosthenes: On 2017 May 04 UT 21:50-22:10 N. Longshaw (BAA, UK, 78mm APO refractor, x125 & x175, seeing II-III, transparency Good). A brownish (orange) tint was seen on the inner NW wall light terraces - this was immediately obvious when first looking at the crater, but as time progressed the effect became less bright. Other craters were checked for similar coloured tints, but none were seen elsewhere on the Moon. UAI observers in Italy (F. Taggogna & A. Tonon) had been imaging the region in colour 17:57-21:47, but their images do not show any colour on the inner NW rim terraces, the their last image is 3 min before Longshaw saw the colour. The ALPO/BAA weight=2.
Eratosthenes 1947 Jan 30 Mean Col. 16deg. Observed by Hill (UK) "Main peak of massive central mountain group appeared to be in a shadowless having regard to it's claimed height of 6,600 ft. The whole of the floor to the west should have still been in darkness. Instead immediately to the west was a dark (intensity 1.5-2) region extending almost to the foot of the bright inner wall and very diffuse in outline. The observation could not be followed through due to increasing cloud, but on the following night all was normal."
On 1886 Jun 10 at UT 21:00 (estimated) Tempel of Germany, saw a star- like light (Cameron comments that the reference in the Middlehurst catalog is wrong). Cameron 1978 catalog ID= and weight=4. ALPO/BAA weight=3.
On 1936 Oct 25 at 01:35 UT W. Haas (Alliance, OH, USA, 12" reflector) saw small bright spots on the floor of Eratosthenes, (Pickering's atlas 9A, col. 30deg, shows no spots - according to Cameron). Cameron 1978 catalog TLP=417 and weight=4. ALPO/BAA weight=1.
Aristillus 1939 Jul 26 UT 02:30 Observed by Haas? (NM?, USA, 12?" reflector) "Dark area to W. part of floor was I=3.7. (see #450, 459 & 461). Used diff. telescopes but can not explain difference)" NASA catalog weight=4 (good). NASA catalog ID #454.
Copernicus 1966 Mar 01-02 UT 22:06-09:45 Observed by Lovell (Auburn, OH, 4" refractor, x120m S=E, T=3.5) "As sun rose higher, west (ast.?) outer wall was bathed in a soft viol. color -- not in evidence on flat ground below the wall" NASA catalog weight=3, NASA catalog ID #922.
Alphonsus 1969 Nov 19 UT 03:30 Observed by Argus/Astronet (CA?, USA) Brightening in W. rim & S. central floor, seen by 2 obs. (Apollo 12 watch)" NASA catalog weight 3 (average). NASA catalog ID #1219.
Plato 2005 Dec 10 UT 20:46 Observed by Brook (Plymouth, UK, 4" refractor. Conditions excellent with the Moon at a high altitude) "2 second duration white flash seen on the floor of the crater" - BAA Lunar Section Report.
On 1980 Apr 24 at 23:35UT Marco Petek (Porto Alegre, Brazil, using a 7.5" refractor noticed that the center of Plato was bright and opaque and the observer thought it was similar in appearance to Linne. A sketch was made and two other observers confirmed the appearance. Cameron mentions that Petek is an experienced observer. Cameron 2006 catalog extension TLP ID=91 and weight=5. ALPO/BAA weight=3.
Messier and A 1966 Dec 22 UT 06:00-06:30 Observed by Kelsey (Riverside, CA, USA, 8" reflector, x200, S=G, T=P) "Blinks on floors of both craters (blink device not stated)" NASA catalog weight=2 (low). NASA catalaog ID #1004.
Cichus 1975 Sep 15 UT 11:15-11:30 G.Ryder (Corinda, Australia, 25cm reflector, x250 & x380, seeing good but with some cloud) The interior W. wall of this crater (on the lip) appeared hazy - difficulkt to bring detail into focus. Neighbouring craters/detail were sharp. Details in the crater wall interior were starting to become visible as time went on, but it had clouded over by 11:30. A Moon Blink was used but no colour was detected. ALPO/BAA weight=1.
On 1985 mar 01 at 20:00UT? Moseley noticed a violet band (tapering to an apex close to the crater centre and merged with the eastern exterior) around Toricelli B, however M. Cook (Frimley, UK) had seen a dusky band(England, UK) on an earlier photo. There was no terminator shadow in the crater. Cameron 2006 Catalog Extension TLP ID=260 aqnd weight=3. ALPO/BAA weight=3.
Censorinus-Maskelyne 1927 Apr 11/12 UT 23:00-01:00? Observed by Druzdov (Russia) "2 luminescent pts. observed. Not vis. at same Sun angle on May 7 & 12th. Not vis. on photos of Barn in 5/23/63" NASA catalog weight=3. NASA catalog ID #393. ALPO/BAA weight=3.
Bullialdus 1979 Jun 05 UT 22:00-23:00 Observed by Cook M.C. and J.D. (Frimley, UK, 12-inch reflector, Seeing III-IV, good transparency). MC Cook observed internittently over this time period (due to cloud) and found the crater sharper in a blue filter than in a red filter. No obscuration seen apart from a darkish patch on the SW rim and spreading over onto an area surrounding the rim, which she took to be shadow, though the main shadow was along the east rim of the crater. JD. Cook observed an orange colouration seen on eastern and the cleft on the SW rim. Dark area seen on southern floor of crater, south of central peak. ALPO/BAA weight=1.
Daniell 1979 Jun 05 UT 20:15-21:10 Observed by Price (Camberley, England, 152mm reflector x64 and x128, seeing III, transparency good) "Obscuration seen" BAA Lunar Section report.
Daniell 1979 Jun 05 UT 20:15-23:00 Observed by Price (Camberley, England, 152mm reflector x64 and x128, seeing III, transparency good) observed that Posidonius lacked sharpness.
U.K. observers: G. North and P. Foley, both saw a wisp of blue associated with this crater. Cameron 2006 catalog extension ID=209 and weight=4. ALPO/BAA weight=3.
On 1981 Apr 15 at UT06:27-06:40 D. Louderback (South Bend, WA, USA using a 3" refractor x134 and S=4.5-5 and T=5-0) saw a bright spot on the western wall of Eimmart (sketch supplied) have an unusual brightening and shade. Variations occurred over 2-3 minute intervals. Louderback commented that the spot looked like a flare with its apex located at the crater wall and there was some blurring effect on the spot - it decreased in size during the phenomenon. Seeing worsened later. Apparently on the 18th and 19th of April everything was back to normal. Cameron comments that there is no bright spot on the Moon at this location. Lunar Orbiter IV plates 192-3.2 shows evening conditions. Cameron 2006 Catalog Extension TLP ID=130 and weight=3. ALPO/BAA weright=3.
Alphonsus 1969 Nov 20 05:27 (UT)? Observed by Argus/Astronet (San Diego, Sacramento, CA, USA) "Brightening in crater. (San Diego & Sacramento obs. confirmed, but astronauts did not see anything. Apollo 12 watch)." NASA catalog weight=3 (average). NASA catalog ID #1222.
Gassendi 1971 Oct 29 UT 22:15-22:50 observed by J.Coates and A.R. Neville (Burnley, UK, 6" reflectir, x192, slight fog, seeing jumpy but good at times). An in ititial Moonblink search proved negative. However white light observations by Coates revealed a golden brown colour between the black interior shadow and the base of the (bright W (IAU?) wall). Neville confirmed its appearance as a coppery hue and saw the colour for 5 minutes before it vanished at 22:55UT. ALPO/BAA weight=2
Gassendi 1967 Jan 21 UT 19:36-20:24 Observed initially by Moore & Moseley (Armagh, N.Ireland, 10" refractor, x360, S=G), Ringsdore (England, 10" reflector), Sartory (Farnham, England, 15" reflector?), Duckworth (England), Kilburn (Ashton, England, 6" reflector), Farrant (England, 8" reflector) "Eng. moon blink at 1936 (no events from 1750-1815h) outside SE wall, brighter at 1939h, seen vis. at 1940h, faint at 1946h. Moved NW at 1950h. At 2000h, Moseley saw it farther W., lost it at 2008h. Seen again at 2026h further toward group of hills. Moore saw it faint at 2002h, lost it at 2005h, vis. & blink at 2007h. Checks again at 2010-50h, 2130-50, 2200-20, 2250-2300, 2325-0000h.Duckworth suspected blink in S.Iridium nr. Bianchini later, but clouds intervened, after clearing couldn't see it. Neg. obs. in 11 other features, inc. Alphonsus & Plato. Confirmed Gass blink 2018-2024h" NASA catalog weight=5. NASA catalog ID #1010. ALPO/BAA weight=4.
Plato 1966 Dec 23 UT 06:15-07:10 Observed by Kelsey (Riverside, CA, USA, 6" reflector, S=P, T=G) and Coralitos Observatory (Organ Pass, NM, USA, 24" reflector +Moonblink) "3 brilliant spots on floor, all showed blinks, (permanent colored Ground features ?). Not confirmed by Corralitos MB." NASA catalog weight=2 (low). NASA catalog ID #1005.
On 1990 Sep 30 at D. Darling (Sun Praire, WI, USA, 12.5" reflector, x150) observed a red spot on the west wall (bright in red filter and faint in the blue filter. No filter reactions were found elsewhere. Gassendi had much detail visible. A sketch was made. BAA observers in the UK were alerted but they could not observe due to cloud. Cameron 2006 extension catalog ID=411 and weight=5. ALPO/BAA weight=3.
Gassendi 1977 May 28/29 UT 20:45-21:15 Observed by D. Sims (Dawlish, Devon, UK) saw a hazy area on the south east floor that was normal in red and white light but darker in blue. This was partly confirmed by J-H Robinson (Devon, England, 10" reflector) 21:24-23:12 who saw the south east floor of Gassendi to have a loss of detail - but no colour seen, although at 21:57-21:58 it was slightly brighter in red than in blue briefly. P. Doherty (22:45-23:15) did not see anything ususual. D. Jewitt (22:22-22:55) did not reveal anything ususual, apart from spurious colour. The Cameron 1978 catalog ID=3 and ID=1463. The ALPO/BAA weight=3.
M. Cook of Frimley, UK, noticed Torricelli B to have a blue tinge inside and outside. No colour had been noticed earlier on 19-21 Mar. Cameron reports also in her catalog that the halo around Torricelli B had lost its brilliance as seen on 29th Mar. Cameron 2006 catalog extension ID=210 and weight=5 - apparently being confirmed by Marshall, Mobberley and Foley. ALPO/BAA weight=3.
Torricelli B 2005 Jan 22 UT 01:00 Observed by Serio (Houston, TX, USA, 6" Cassegrain, x150 and x180, Seeing 3, high deck of Cirrus clouds) "Torricelli B hard to make out in the videos taken, but images taken through cloud. A check on the image received by the coordinator shows that Torricelli B is in fact visible, but perhaps not very bright. A later observational sequence of images by Raul Salvo (Montevideo, Uraguay UT 03:15-03:23) showed similarly that Torricelli B was dark, and there was some brightness variability although the background setting on these was low" An ALPO report.
At 03:30UT observer noticed a hint of yellow colour on the floor of the crater and by 03:57UT the south east and central parts of the floor and the circular feature on the south west floor had turned a deep yellow colour. The rest of the crater remained colourless. Other craters also remained colourless. By 04:05UT the colour was fading and by 04:15UT it was gone. Maurice Collins in New Zealand took some low resolution colour images about 4 hours later but these failed to show any yellow colour. Zac Pujic obtained colour images at a different time of natural surface colour on the Moon and finds that Bullialdus does actually have a natural yellow cast to most of the floor. However this does not explain the variability in colour strength seen by Robin Gray. ALPO/BAA weight=3.
Observed by Firsoff (Somerset, England, 6.5" reflector? x240) "Red glow." NASA catalog weight=4 (high). NASA catalog ID #573.
On 1987 Jan 11 at UT 18:15-23:00 P. Grego (Birmingham, UK, 6" reflector, seeing=III) sketched Aristarchus crater and saw two luminous circular patches on the exterior west wall - these were less bright than the inner wall but brighter than the outer wall. The Cameron 1978 catalog ID=292 and weight=5. ALPO/BAA weight=2.
On 1987 Jan 11 at UT P. Moore (Sussex, UK) found the the floor of Plato was much more drk than the adjacent Mare Imbrium. Furthemore there was a blurring of detail over the northeast wall and onto the nearby floor. detail elsewhere in the crater was OK. By 23:00UT there was less lack of detail effects. M. Cook (Frimley, UK) at 21:55UT noted the obscured area but decided that it was narrower than the same effect one month ago and suspected that she may have been observing towards the end of this TLP. The effect gradually dimmed between 21:55 and 22:45UT. Other craters were normal. G. North was affected by poor seeing conditions. Davies detected a slight obscurtion on the north east corner - it was a misty gray feature at x200. The Cameron 2006 catalog extension ID was 292 and the weight was 5. Tha ALPO/BAA weight was 4.
Cobra Head 1949 Feb 10 UT 00:00? Observed by Thorton (Northwich, England, 18" reflector) "I was examining the Cobra Head of the Schroter Valley, when I noticed what seemed to be a diffuseed patch of thin smoke or vapour, apparently originating from the valley on the E. Side where the landslip is, and spread over the edge on to the plain for a short distance. Every detail of the edge of the valley was perfectly clear and distinct except where this patch occurred, but there the definition was poor and very blurred" NASA catalog weight=4 and catalog ID #515. ALPO/BAA weight=1.
On 1889 May 11 at 22:00? UT an unknown observer saw an ink black spot on the rampart of Gassendi. It had not been seen before ar at the next lunation or indeed ever again. Cameron 1978 catalog ID=261 and weight=3. ALPO/BAA weight=2.
Bullialdus 1974 Sep 27 UT 22:45-23:40 Observed by Findlay, Ford (Dundee, Scotland, 10" refractor, 150x, 180x, filters) "Saw yellowish- orange color in crater. After clouds passed at 2300h color still there & gave a slight blink which no other craters did. Not seen in red filter, dark in blue. Ford saw it along ridge fr. c.p. to SW wall. Alert did not bring confirm. as clouds intervened for all others." NASA catalog weight=4. NASA catalog ID #1394. ALPO/BAA weight=3.
Torricelli B 2005 Jan 22 UT 03:15-03:23 Observed by Raul Salvo (Montevideo, Uraguay UT 03:15-03:23) showed that Torricelli B was dark, and there was some brightness variability although the background setting on these images was low and seeing could account for the brightness variation? An ALPO report.
On 1990 Oct 1st at 00:44-01:24UT D Darling (Sun Praire, WI, USA) observed that Gassendi still had a blink effect when viewed through blue (Wratten 38A) and red (Wratten 25A) filters. No effect was seen on Aristarchus. Gassendi was brighter in the red filter and this was confirmed by Weier. Sketches were made and brightness measurements taken. Both observers used a 12.5" reflector x159. At 01:00UT the NW wall was 7.5, the SW wall 8.0, the S. wall 7.5, the floor 6.0, the outer E. wall 8.0, the N. floor 5.5. Gassendi A W. wall was 9.5,l Aristarchus W. floor was 8.0, NW wall 8.0, shadowed floor 0.0, E. outer wall 7.0, NBP 5.5, area between Aristarchus and Herodotus 6.0, and the comet like tail: 8.2 on the E. and 8.5 on the W. The Cameron 2006 catalog extension TLP ID=412 and weight=5. The ALPO/BAA weight=4.
Schroter's Valley 1955 Aug 29 UT 19:45 Observed by Firsoff (Somerset, England, 6.5" reflector x200, S=P-F) "Valley almost completely invisible in blue" NASA catalog weight=4 (high). NASA catalog ID #605.
Hobdell, of St Petersburg, FL, USA, using a 2"? refractor? and Seeing=I-II, saw a bright region on the north west wall that seemed to change in brightness. In truth, there were other features elsewhere on the Moon that also fluctuated, but not as much as Aristarchus was. No colour was noticed. Cameron suspects fluctuations in our own atmosphere. Cameron 2006 extension catalog ID 131 and weight=1. ALPO/BAA weight=1.
Aristarchus 1976 Sep 05/06 UT 18:45-01:35 Observed by Prout (England?, 12" reflector, S=III-II), Foley (England, 12" reflector), Moore and Spry (Sussex, England, 12" reflector) "Viol. hue on crater on W. wall, especially NW corner seen by Prout & 2 Foleys. Moore & Spry did not see color. All obs. noted that the crater was dull
Proclus 1970 Oct 12 UT 00:54 Observed by Bartlett (Baltimore, MD, USA, 4" reflector, 51x-181x) "Floor darkened to intensity 1.5 deg (albedo) & c.p. became invis. Next day c.p. reappared & was 5 deg bright & 6deg bright on 15th" NASA catalog weight=4 (high). NASA catalog ID #1277.
Herodotus 1957 Sep 05 UT 02:55-03:24 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180, S=1-5, T=5) Pseudo peak visible within floor shadow at 03:10h" NASA catalog weight=4. NASA catalog ID #671. ALPO/BAA weight=3.
On 2002 Feb 24 UT 05:15-05:35 W. Haas (Las Cruces, NM, USA) observed an obscuration in Herodotus - the shadown was, almost, but not completely black. ALPO/BAA weight=2.
Schickard 1972 Sep 19 UT 19:45-20:25, 20:00-23:30 Observed by Watkins (Herts., Eng. 4.5" reflector, x225, S=G) Amery (Reading, Eng.m 12" reflector?), Fitton (Lancashire, Emg., 8.5" reflector) and Moore (Selsey, Eng., 12.5" reflector?, 4.5" refractor 45-225x, S=P) "Luminous, nebulous spot attracted Watkin's att'n. Got brighter. Checked 'scope--not instru. Obj. had greenish-gray color, size @ 15km. Amery & Fitton with blink devices noted nothing unusual at later times (2000-2330h). Aris., Plato, Gass. were neg. at 1930-2025h (date not given, guessed at fr. available info.). Turbulence, lasting secs. at a time." NASA catalog weight=2. NASA catalog ID # 1344. ALPO/BAA weight=2.
On 2002 Feb 24 UT 06:05-06:20 W. Haas (Las Cruces, NM, USA) observed that the shadow was, almost, but not completely black. This might have been related to the observing conditions. ALPO/BAA weight=2.
D. Darling of (Sun Praire, WI, USA, using a 12.5" reflector at x150, noticed a hint of red? colour on the south west rim of Aristarchus. Brightness measurements were normal for Aristarchus and Herodotus. No colour seen elsewhere e.g. Prom. LaPlace. The colour on Aristarchus had gone by 01:15UT. Cameron 2006 catalog extension ID=414 and weight=3. ALPO/BAA weight=3.
A fleeting faint reddish patch was seen in Gassendi at 21:15UT. This observation has an ALPO/BAA weight of 2.
Rays of(?) (in?) Herodotus 1955 Oct 28 UTC 18:30 Observed by Kozyrev (Crimea, Russia, 50" reflector, spectragraph) "Spectrum 3934A (K of Ca). 3964 (H of Ca) change in luminosity. 13% in H, 19% in K, 2% in H, 3% in K. in photo-line-depth method" NASA catalog weight=5 (very high). NASA catalog ID #622. ALPO/BAA weight=5.
1996 Jun 28 UT 21:04 F. Ferri and D. Zompatori (Anzio), using a 20cm f/6 reflector, reported that (translation) "Using a blue filter the area was invisible". This is a UAI observation from Italy. ALPO/BAA weight=1.
Babbage 1974 Sep 29 UT 00:00-01:00 Observed by Lord (St Annes- on-Sea, UK, 10" refractor, Wratten 25 and 44a filters, 125x, S=II-III). Activity observed in SW floor between A & W. wall. Details not obscured in either filter, but slightly more darker than surroundings in the blue filter. NASA catalog weight=2. NASA catalog ID #1395. ALPO/BAA weight=2.
Ross D 1965 Apr 14 UT 06:03-06:22 Observed by Harris (Whittier?, CA?, USA, 19"? reflector) "Phenomenon description unavailable. Given at an ALPO meeting" NASA catalog weight=0 (very unreliable). NASA catalog ID #874.
On 1990 Oct 02 at 02:25-02:45UT D. Darling (Sun Praire, WI, USA using a 12.5" reflector at x159, with red and blue filters), saw a blink effect on the west wall of Plato i.e. brighter through a blue filter than through the red. No Colour blinks seen on Gassendi or Aristarchus. Cameron 2006 Catalog TLP=413 and weight=4.
Schroter's Valley 1897 Oct 08 UT 22:00 Observed by Pickering (Cambridge, Maas., USA, 15"? refractor) "Variations in vapor col. Tillsow, C was largest compared with D&E& most conspicuous 1.3 d after sunrise. Drawing. (time est. fr. given colon.)" NASA catalog weight=3 (average). NASA catalog ID #291.
On 1988 Jan 02 at 05:57-06:13 UT D. Louderback (South Bend, WA, USA, using a 8" reflector, seeing 4 out of 10) observed that points B and D on Cape Agarum faded suddenly from 7.0 to 6.4 (B) and 6.0 (D). However these returned to their normal levels at 06:13 UT. Cameron 2006 extension catalog ID=316 and weight=4. ALPO/BAA weight=3.
On 1984 Feb 14 P. Moore (Selsey, UK) thought that there was something odd about Mons Pico in that it looked very bright and gave a good impression of a crater. Cameron 2006 catalog extension ID=241 and weight=5. ALPO/BAA weight=2.
On 1984 Feb 14 P. Moore (Selsey, UK) observed that Plato was darker than the nearby mare and no detail could be seen on the floor or the eastern wall - the later was obscured. At 23:40UT some dimming was still present on the north east wall and still no detail on the floor of Plato. Cook noticed that the eastern floor close to the wall was misty and also noted no detail on the floor. Amery though noted that all parts of the floor were sharp although some darkening was visible in the north west and a hint of obscurtion. The east wall though was quite sharp. Mosely could see the central craterlet but from 8-6 o'clock tricky to define (Foley says that this effect has been seen at this colongitude before). Streak ray across the floor of Plato seen (North) - filter measurements made. Cameron 2006 catalog extension ID= 241 and weight=5. ALPO/BAA weight=2.
On 1977 May 30 at 21:04-02:13UT J.H.-Robinson noted a loss of detail inside Gassendi, however he did not regard this as a TLP. The effect was also seen by P.W. Foley. Cameron 2006 extension catalog TLP ID=16 and weight=0 ALPO/BAA weight=1.
On 1988 Jan 02 at 06:41-07:08 UT D. Louderback (South Bend, WA, USA, using a 8" reflector, seeing 4 out of 10) observed that at 06:56 UT Aristarchus floor (point F) brightened rapidly from an intensity of 5.2 to 6, however at 07:08 UT the spot returned to normal. He also noticed that the bands on the walls varied every few minutes. A mist like appearance was seen on the floor of Aristarchus. Through a red filter he could see through the haze, but floor detail could not be seen through a blue filter. Cameron 2006 extension catalog ID=316 and weight=4. ALPO/BAA weight=3.
Manilius 1939 Jul 30 UT 06:00 Observed by Haas? (NM?, USA, 12?" reflector) "Dark area in S. part wad I=3.7 comp. with #449. Cond. were similar. (phase same. real difference?). (normal here?)"
Plato 1971 Nov 01 UT 19:35-20:35 Observed by Kidd (S.Shields, UK 16" reflector, S=G), Kirsopp (UK), Fitton (Lancashire, UK, 8" reflector x200) "NW (IAU?) rim, small area of obscur. & bright spot adjacent to it. Was normal at 2035h. Kirsopp confirmed. Fitton saw nothing unusual in blink patrol. (blink device detects color rather than brightness)" NASA catalog weight=4. NASA catalog ID #1318. ALPO/BAA weight=1.
Mare Humboldtianum 1951 Jan 21 20:47-22:00 UT observed by Baum (Chester, England). The appearance of some mountains on the limb appeared to change over time, with some mistiness. ALPO/BAA weight=2.
Madler 1940 Aug 17 UT 06:45 (Cameron gives 07:30 but Haas says this is wrong) Observed by Haas (New Mexico?, USA, 12" reflector?) Bright spot on S. rim had I=5.8 on this date but 8.9 on Aug. 17, when observing conditions were similar (see # 473). NASA catalog weight=4. NASA catalog ID #470. ALPO/BAA weight=3.
Aristarchus 1989 Oct 13 UTC 21:00 Observed by Cook (Frimley, Surrey, UK, 20cm reflector (visual and video)) "Aristarchus had what appeared to be a outline of a ghost crater on it's eastern side - quite large and bright". Cameron 2006 extended catalog TLP ID No=378 and weight=5. ALPO/BAA weight=4.
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.
Archimedes 1940 Jun 20 UT 07:30 Observed by Haas (NM, USA, 12?" reflector) "NE wall (outer) had I=2.5 on this nite but 5.0 on Aug. 18 (see #471 -- both same phase so real diff. 2.5 normal?)" NASA weight=4. NASA ID No. #467. 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.
Proclus 1972 Nov 20 UT 20:20 Observed by Farrant (Cambridge, England, 8.5" reflector, x178) "Dark patch in crater. Disappeared by next nite. The normal ring seemed thickened. On Dec. 7. the crater appeared bright. Drawings. (prob. real LTP, nr. FM)" NASA catalog weight=3 (average). NASA catalog ID #1350.
Lichtenberg 1951 Jan 22 18:19.2-18:38.5 UT observed by Baum (Chester, England). Tiny red spot noticed initially and then faded. Location of spot 31.403N 66.167W. 20cm refractor x90- x100. Seeing fair-extremely good. NASA catalog assigns a weight of 3. NASA TLP ID No. #542. ALPO/BAA weight=3.
Gassendi 1966 Dec 27 UTC 06:30-07:05 Observed by Kelsey (Riverside, CA, USA, 6" reflector?) "Very faint blink on SW (ast. ?) floor & on another N. of it on NW floor. Obs. considers obs. very suspect" NASA catalog weight=1 (very poor). NASA catalog ID #1006.
Aristarchus 1954 Oct 12 UT 00:55-02:10 Observed by Bartlett (Baltimore, MD, USA, 3.5" refractor x100, S=5-6, T=5) "Pale violet radiance on S.wall SE, E, NE walls, & c.p. At 0409 strong violet tint E 1/2 of fl.very faint on W. 1/2 of floor & W. wall. Dark violet on nimbus & pale violet on Mt. m" NASA catalog weight=4. NASA catalog ID #576. ALPO/BAA weight=2.
On 1989 Oct 14 UT 19:00?, 22:00? P.W. Foley (Kent, U.K., using a 12" reflector) noted that although the brightness of Aristarchus crater seemed steady, that there was just too much detil to see inside the crater than one would expect. Appeared as two craters - Cameron commented that this was often seen by Bartlett. Several observers apparently confirmed this TLP? Cameron 1978 catalog extension ID=379 and weight=5. ALPO/BAA weight=2.
Plato 1878 Nov 09 UTC 21:00 UTC Observed by Klein (Cologne, Germany, 6" refractor?) "Faint, but unmistakable white cloud not seen before." NASA catalog weight=4. NASA catalog ID #207.
Proclus 1972 Nov 21 UT 21:30 Observed by Farrant (Cambridge, England, 8.5" reflector, x130) "Thickened bright ring remained, but the dark patch had disappeared. (dark patch prob. real temporary phenom. as it was seen nr. FM when contrasts are strongest, yet disappeared" NASA catalog weight=1 (very low). NASA catalog ID #1351.
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 1984 Feb 17 at 19:45-22:20UT P. Madej noticed colour in Aristarchus and telephoned the BAA Lunar Secton TLP network. Mosely at 21:15UT observed that Aristarchus was both bright and fuzzy - there was some spurios color (red on south and blue on the north) but this was replaced by violet. By 21:30UT (transparency=fair) the centre of the crater was bluish and the west wall creamy white. the north and south walls were brilliant white. By 22:00-22:30 UT the seeing had improved and the crater looked unusual - now the centre was violet and the west wall duller, off-white. By 05:35UT the crater was difficult to define according to Cook - 4 bands could be seen under II seeing and the north rim was fuzzy and less bright than the east wall (this was hazy). P. Moore observed that the crater was normal at 04:00UT. Cameron 2006 catalog extension ID=242 and weight=3. ALPO/BAA weight=2.
On 1984 Feb 17 at 19:45-22:20UT P. Madej (England, seeing=III- IV, x50)noticed that the crater Reinhold had a blood red spot on the northern terraces, at the base of the inner wall in a summit crater on the last of a crater chain or ridge descending from the top to floor". Cameron 2006 catalog extension ID=242 and weight=3. ALPO/BAA weight=3.
CCD images taken through Wratten 25 (red+near IR) and 87 (near IR only) filters. Between 00:02 and 00:25UT there was some slight evidence that a fade may have taken place however careful analysis by Cook casts doubt on this. Probably it was more related to a degradation in image quality due to seeing than a true TLP. An ALPO/BAA weight of 1 has been assigned.
Aristarchus 1973 Oct 12 UTC 18:13-18:45 observed by Pasternak "Bright region of the S. of the crater, color was red." - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61. ALPO/BAA weight=1.
Aristarchus 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson, CA ?, 60" reflector? Photometer) "Reddish color in Aris. 0.88 magnitudes brighter than normal (photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758. ALPO/BAA weight=3.
Bullialdus 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson, CA ?, 60" reflector? Photometer) "1.05 magnitudes brighter than normal (photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758. ALPO/BAA weight=2.
Kepler 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson, CA ?, 60" reflector? Photometer) "1.03 magnitudes brighter than normal (photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758.
Enhancement of spectrum in UV and CaI recorded on photoelectric spectrometer scans by Grainger and Ring in Italy. Effect seen on Aristarchus. Cameron 1978 catalog ID=740 and weight=5. ALPO/BAA weight=5.
On 1970 Nov 14 UT20:10 J.Coates (Burnley Astromical Society, 8.5" reflector, x102 and x204) saw a dirty green colour on the NW region of the crater, in patches, with a green area nearby. ALPO/BAA weight=1.
Aristarchus 1976 Aug 12 UT 07:30 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector 45-225x, S=6=3, T=5) "Nimbus around c.p.=2deg, S.floor=6deg & was red; rest of floor=8deg. This is only tint in Aris.). Tonite saw a pale red glow suffasing the S. region of the crater. Bright blue radiance (gas?) on ENE wall. Viol. radiance on plateau m gone tonite. Red glow on 13th & the region was yellow- brown." NASA catalog weight=4 (high). NASA catalog ID #1442.
In 1941 Jul 11 at UT 04:00? Haas (New Mexico?, USA, 12" reflector) observed near Hansteen "Moving luminous speck, estimated 0.1" diam., mag 8 (rept. date was 10. Lunar meteor?". The Cameron 1978 catalog ID= 487 and weight=3. The ALPO/BAA weight=2.
On 1986 Feb 26 at 05:00UT a photograph was obtained by T. Kohman of Pittsburgh, PA, USA (3.5" Questar and 0.25 sec exposure) that had two bands above the limb, resembling ejecta plumes. Cameron suspects that these are probably flare from the eyepiece optics. Cameron 2006 extension catalog ID=282 and weight=0. ALPO/BAA weight=1.
Plato 1870 Apr 17 UT 22:00? Observed by Gledhill? (Halifax, England, 9" refractor) "Group 1 again in illum. as in Aug., Sep. 1869 observations." NASA catalog weight=2 (low). NASA catalog ID #166.
Gassendi 1967 Jan 28 UT 00:04-01:06 Observed by Moseley (Armagh, Northern Ireland, 10" refractor, x350, Seeing=Good) "Small moon blink (Eng.) not quite concentric with the crater, half way from c.p. to SE (IAU?) wall. Lasted till 0007h then clouds. Seen again at 0100h-0106h, then lost with poor seeing. Looked again at 0148, 0230, 0310, but neg. Other areas also neg." NASA catalog weight=4 (high). NASA catalog ID # 1013.
Aristarchus 1976 Aug 13 UT 07:30 Observed by Bartlett (Baltimore, MD, USA, 4.5" reflector 45-225x, S=6=3, T=5) "Nimbus around c.p.=2deg, S.floor=6deg & was red; rest of floor=8deg. This is only tint in Aris.). Tonite saw a pale red glow suffasing the S. region of the crater. Bright blue radiance (gas?) on ENE wall. Viol. radiance on plateau m gone tonite. Red glow on 13th & the region was yellow- brown." NASA catalog weight=4 (high). NASA catalog ID #1442.
On 1985 Dec 29th at UT 23:23-23:58, M. Mobberley (Bury St. Edmunds, Suffolk, UK, seeing II-III) made a video scan of the Moon. P.W. Foley examined the tape and noted something that Mobberley had not seen visually. Two scans of Totticelli B had taken place, one at 23:23 and the other at 23:58UT. In the first a brilliant point appeared briefly, on the western rim, positioned at 3o'clock. In the second video sequence this brilliant spot was present continuously and wandered along the rim. It was possible to monitor frequency of turbulence present, this apparent movement did not ppear to conform, although judgement here was extremelydifficult as the feature was at absolute point of resolution, a little better than 0.5 mile. Also considered was the implication of the equipment effect, this did not seem to fit either as other nerby craters in the same configuration, 30% shadow filled with sunlight on exterior of western walls. A point to watch for in future. ALPO/BAA weight=3.
Janssen K 1992 Sep 14 UTC 21:30-0025 Observed by Brook (Plymouth, UK, 4" reflector, Antoniadi II seeing). "Crater > & similar one was sharp EW wall especially bright. Floor in shadow. No obscuration on floor but no detail in bright part could be seen. At 23:20 had dimmed slightly, continued to do so. At 00:40 was noticeably < Began to see detail 00:25, TLP over. G. North (Herstmonceux, 18" reflector) took photos in this time K was grayish, not very bright. C. Brook noticed K very bright condition its rays 1/2 length. L. Harris (UK, 10" Reflector with CCD camera). Cameron 2006 catalog ID=453 and weight=5.
In 1897 Oct 14 at UT 00"50 Pickering (Cambridge, Mass. USA, 15" refractor?) observed "Refractive displacement of lunar atm. at bright limb was 0.4" (time is for occultation of Alctone in Pleiades)" The Cameron 1978 catalog ID=294 and the weight=3. The ALPO/BAA weight=1. Note this may? refer to an occultation, in which case it will be pointless to observe again for a particular illumination.
Grimaldi 1937 Sep 23 UT 05:00 Observed by Firsoff (Glastonbury, England, 6" reflector + filter) "Variations in green. Strong green on this date. Other dates of variation are: Date Time Color 4/29/37 0930 slight 3/23/38 09?30 strong 7/24/38 0830 gray-green NASA catalog weight=4 (high). NASA catalog ID #424.
On 1944 Mar 12 at UT 23:00 H.P. Wilkins (Kent, UK, 8.5" reflector) observed that Plato appeared incomplete - the central crater had it's north wall obscured. cameron comments that maybe this was due to the low altitude of the Moon? The Cameron 1978 catalog ID=491 and the weight=4. The ALPO/BAA weight=2.
Birt 1972 Sep 25 UT 23:20-23:45 Observed by Doherty (Stoke-on-Trent, England, 10" reflector x280, S=VG) "All bright areas were similar in intensity (albedo) but 2 larger ones at times seemed brighter. N & S. The E. IAU? wall of the small craterlet showed most prominently & at times suspected a faint pt. of light just W. of its center. This was very suspect however." NASA catalog weight=1 (very low). NASA catalog ID #1345.
Darling, alerted by Keyes saw Aris >> brighter obj on moon (as it normally is) Comet ray & N rim of Herod. >> could see no detail - Aris. except two bands, moon was pale yellow (low alt.) with halo around it. Nothing unusual elsewhere. Cameron 2006 catalog extension ID #384 and weight=0. ALPO/BAA weight=1, just in case there is some merit in this report?
C.Brook (Plymouth, UK) noticed that the east wall of this crater was brighter than the walls of nearby craters. Cameron comments that Foley says that this is normal and agrees. Cameron 2006 Catalog Extension ID= 433 and weight=1. ALPO/BAA weight=1.
Plinius 1937 Jul 27 UT 04:37 Observed by Haas (Alliance, OH, 12"? reflector) "E. end of c.p. varied in intensity at similar lighting conditions. Intensity was low est on this nite, being at I=5.0. Other nites were: Date Time col. I 6/23/37 0600 84 8.5 7/20/37 0200 58 6.0 7/22/37 0300 78 6.5 9/22/37 0700 114 6.0 9/24/37 0830 142 6.5 10/17/37 0100 59 8.5 10/21/37 0500 109 8.5 NASA catalog weight=4 (good) on this and the nights listed. NASA catalog ID #422. ALPO/BAA weight=3.
Aristarchus 1969 Dec 28 UT 00:24 Observed by Kilburn (England, 6" reflector x192) "Blink in same place as #1231. Very faint and large area." NASA catalog weight=3 (average). NASA catalog ID #1232.
Observed by Bartlett (Baltimire, MD, USA, 5" reflector, x150) "N. half of crater hazy & ill-defined". S=5, T=4. NASA catalog weight=4 (good). NASA catalog ID 571.
Aristarchus 1973 Oct 16/17 UT 22:16-01:00 Observed by Morgan (England) "Invis. of NW wall bands. Seeing by no means perfect" NASA catalog weight=1. NASA catalog ID #1376. ALPO/BAA weight=1.
P.Foley (Nettlestead, UK, 12" reflector) noticed a translucent bluish glow in Earthshine coming from this crater, despite it being close to the nright terminator. Cameron 2006 catalog extension ID=200 and weight=2. ALPO/BAA weight=3.
On 1997 Jul 25/26 at UT 23:00-00:00 S. Fox (Dundee Tayside, Scotland, UK, 15cm f/5 reflector with x4 Barlow). A series of photographs were taken that show a glow just beyond the terminator, near to Callipus crater. Almost certainly this is lens flare from the Barlow lens. The ALPO/BAA weight=1.
Taurus Mts 1955 Sep 08 UT 01:35 (Sep 08 EDT 07:35) Lahbert (Irenton, Ohio, USA, small telescope x 90) observed: "Attention directed to mts., saw 2 distinct flashes 1/4s apart that came from edge of those mts. (mts. in dark)." Cameron 1978 catalog weight=3 (average) and ID = 611. ALPO/BAA weight=2.
A woodcut from Worms, Germany, shows a star between eyes of the "Man in the Moon". This is a star like appearance on the dark side. Cameron 1978 catalog weight=6. Cameron 1978 TLP ID No. 6. It is possible that this was in the region of Calippus. The ALPO/BAA weight is 1. Julian date 1540 Nov 26. Gregorian date 1540 Dec 06.
On 1889 Mar 30 at 05:00?UT, Gaudibert of France, using a 4" refractor, saw a black spot in the centre of Copernicus (Seen for the first time). Cameron says that the date is wrong? age=28days & Coperncius is in the dark. Cameron 1978 Catalog ID=250 and weight=3. ALPO/BAA weight=2.
On 1889 mar 30 at 05:00UT Gaudibert of France, using a 4" refractor, saw black spot in Plinius (seen again on Sep 1889 see ID=265). Cameron 1978 catalog ID=260 and weight=1, ALPO/BAA weight=1.