TLP Repeat Illumination/Libration and Earthshine predictions for: France - Paris

Ill is percentage illumination of the Moon
*Indicates a repeat illumination and libration event to within +/- 1 deg for both
A non-* indicates just repeat illumination to within +/-0.5 deg

2021-Apr-01 UT 01:41-03:21 Ill=85% Eratosthenes observed by Haas_W on 1936-10-4

     1936 Oct 04 UT07:42 W.Haas drew bands, many smaller spots on 
     floor. Pickering's atlas 9D col 141 shows bands but no bright 
     spots. Haas' location Aliance, OH, USA. Reference: Haas, W. 
     J.Royal Astr. Soc. Canada. Cameron 1978 catalog ID=416 and 
     weight=3. ALPO/BAA weight=2.

2021-Apr-15 UT 18:38-20:00 Ill=11% Littrow observed by Madej_P on 1980-4-18

     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 

2021-Apr-15 UT 18:38-19:25 Ill=11% Aristarchus observed by Cook_MC on 1983-5-15

     On 1983 May 15 at UT21:30-22:30 M.C. Cook and J.D. Cook (Frimley, UK) 
     could clearly see Aristarchus in Earthshine, whereas earlier that night 
     P.W. Foley (Kent, UK) could not see the crater although other features 
     were cisible. The Cameron 2006 catalog ID=215 and the weight=2. The 
     ALPO/BAA weight=1.

2021-Apr-15 UT 19:29-20:00 Ill=12% Taruntius observed by Osawa on 1968-12-23

     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.

2021-Apr-15 UT 19:39-20:00 Ill=12% Aristarchus observed by Mackey on 1971-10-22

     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.

2021-Apr-15 UT 19:43-20:00 Ill=12% Aristarchus observed by Foley_PW on 1980-4-18

     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. 

2021-Apr-15 UT 19:16-20:02 Ill=12% Earthshine: sporadic meteors

2021-Apr-16 UT 18:39-20:11 Ill=18% Aristarchus observed by Taylor_TG on 1837-3-11

     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. 

2021-Apr-16 UT 18:39-18:57 Ill=18% Unknown observed by Unknown_Observer on 1880-11-6

     On 1880 Nov 06 at UT 20:00 an unknown observer observed a TLP at an 
     unknown location on the Moon. The Cameron catalog has an entry for this 
     date and time but does not specify the location, the observer or what 
     was seen. The Cameron 1978 catalog ID=218 and the weight=0. The 
     ALPO/BAA weight=1.

2021-Apr-16 UT 18:39-19:24 Ill=18% Aristarchus observed by Hobdell on 1981-6-7

     On 1981 Jun 07 at UT02:30-03:00 B. Hobdell (St Petersberg, FL, USA, 
     10" and 4" reflectors, seeing=I) at 02:30UT saw a flash from 
     Aristarchus and another one from Schroter's valley. By 02:45UT 
     Aristarchus was starting to be difficult to see and had occasionally a 
     bluish cast. By 03:00UT the crater could only barely be seen. This was 
     odd because visibility on the Earthlit side was really rather good. The 
     Cameron 2006 catalog ID=143 and weight=0. The ALPO/BAA weight=1.

2021-Apr-16 UT 18:39-19:24 Ill=18% Copernicus observed by Hobdell on 1981-6-7

     On 1981 Jun 07 at UT02:30-03:00 B. Hobdell (St Peterberg, FL, USA, 10 
     and 4" reflectors, seeing=1) saw Copernicus to be very bright in blue. 
     Clarty of Earthsine was exceptional tonight. The Cameron 2006 catalog 
     ID=143 and weight=0. The ALPO/BAA weight=1.

2021-Apr-16 UT 18:39-19:57 Ill=18% W_Limb observed by Moseley_R on 1983-5-16

     W.limb 1983 May 16 UT 22:00-23:00 R.Moseley (Coventry,UK, 6" 
     reflector, x60) observed a faint but extensive brightening of 
     the W.limb, perhaps a little stronger at PA=80-90 deg. No other 
     features seen in Earthshine although Aristarchus suspected.
     ALPO/BAA weight=1.

2021-Apr-16 UT 18:48-20:42 Ill=18% Mare_Crisium observed by Thomas on 1915-12-11

     North shore of Mare Crisium 1915 Dec 11 UT 06:00? Observed by 
     Thomas (Glenorchy, Tasmania) "star-like pt. on N. shore of 
     mare. (Eimmart?) Particularly bright spot. Tho't it was 
     sunlight from rim of sm. crater." NASA catalog weight=0 NASA 
     catalog ID #358. ALPO/BAA weight=1.

2021-Apr-16 UT 20:03-21:00 Ill=18% Atlas observed by Osawa on 1968-12-24

     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.

2021-Apr-16 UT 20:06-21:00 Ill=18% Aristarchus observed by Madej_P on 1980-4-19

     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. 

2021-Apr-16 UT 20:09-21:00 Ill=18% Taruntius observed by Buczynski_DG on 1980-4-19

     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.

2021-Apr-16 UT 20:46-21:00 Ill=19% Moon observed by Marokwic on 1881-9-27

     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.

2021-Apr-16 UT 19:18-21:02 Ill=19% Earthshine: sporadic meteors

2021-Apr-17 UT 18:41-19:31 Ill=26% Moon observed by Hirst on 1879-10-20

     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.

2021-Apr-17 UT 18:41-18:44 Ill=26% Aristarchus observed by Hobdell on 1981-6-8

     On 1981 Jun 08 at UT01:48-02:45 B. Hobdell (St Petersberg, FL, USA, 10 
     and 4" reflectors) could hardly see Aristarchus crater, however at 
     01:48UT it brightened in blue for about 3 minutes. Then at 02:20UT 
     there was a bright flash, and by 02:25UT the crater was very bright, 
     but by 02:45UT it was no longer visible. Cameron 2006 catalog ID=144 
     and weight=0. The ALPO/BAA weight=1.

2021-Apr-17 UT 18:41-20:08 Ill=26% Aristarchus observed by Foley_PW on 1983-5-17

     On 1983 May 17 Foley (Kent, UK, 12" reflector)observed 
     Aristarchus at 22:10 and noted that it had the same rose-violet colour 
     as had been seen by him a day earlier. The Cameron 2006 catalog ID=220 
     and the weight=0. The ALPO/BAA weight=2.

2021-Apr-17 UT 18:41-19:02 Ill=26% Aristarchus observed by Davis_H on 1988-11-14

     On 1988 Nov 14 at UT 17:25-18:30 H. Miles (St. Minver, 
     Cornwall, England, UK, 5"refractor? x60 and x120) found 
     Aristarchus to be a white ill-defined circular patch. At 
     17:45UT it was a lot brighter (Cameron comments that this 
     might have something to do with sky darkness). In contrast, 
     Copernicus was just seen as a white patch and the Jura 
     mountains could be seen (not as bright). Aristarchus grew 
     brighter over time and there was a bright point on the west 
     wall (seen at x60 and x120). t was fainter at 1854 & < At 
     1830. (Foley) said Earthshine cond. Superb with many regions 
     clearly seen, but Aris. was dull. (Cooks) in hazy condition 
     could not detect Aris." The Cameron 2006 catalog ID=338 and 
     weight=0. The ALPO weight=1.   

2021-Apr-17 UT 18:56-20:32 Ill=26% Aristarchus observed by Foley_PW on 1980-4-20

     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.

2021-Apr-17 UT 18:59-19:55 Ill=26% Daniell observed by Madej_P on 1979-4-2

     Daniell 1979 Apr 02 UT 21:45-22:14 Obseved by Madej (Huddersfield, UK, 
     158mm reflector, f/4.2, x36-110, seeing II-III) "Obscuration seen" BAA 
     Lunar Section Report. Cameron says that this was a bright white cloud 
     that covered three quarters of the crater. A yellow filter was used at 
     21:48, but the cloud was still white, albeit thinner (at x110). By 
     22:14UT the TLP was barely visible and again no colour seen. Buczynski 
     (Lancaster, UK, seeing = poor) saw spurious colour. Later (22:31-
     22:46UT?) Mellor obtained some photos, but these revealed no colour.
     The Cameron 1978 catalog ID=48 and the weight=3. The ALPO/BAA weight=2.

2021-Apr-17 UT 19:00-20:36 Ill=26% Aristarchus observed by Lagunas on 1969-11-15

     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 

2021-Apr-17 UT 19:16-20:52 Ill=26% Piccolomini observed by Cook_MC on 1980-4-20

     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.

2021-Apr-17 UT 19:25-20:21 Ill=26% Aristarchus observed by Amery_GW on 1983-1-19

     On 1983 Jan 19 at UT 18:00-19:00 G. Amery (Reading, UK) discovered that 
     Aristarchus could not be seen in Earthshine, this was odd because less 
     prominent features could be seen. Other observers (Moore and Foley) 
     confirmed the very low brightness of the crater. The Cameron 2006 
     catalog ID=197 and the weight=2. The ALPO/BAA weight=2.

2021-Apr-17 UT 19:25-20:21 Ill=26% Messier observed by Amery_GW on 1983-1-19

     On 1983 Jan 19 at UT 18:00-19:00 G.W. Amery (Reading, UK) found that 
     Messier was difficult to define. The Cameron 2006 catalog ID=197 and 
     the weight=2. The ALPO/BAA weight=1.

2021-Apr-17 UT 19:36-21:12 Ill=26% Copernicus observed by Cook_JD on 1980-4-20

     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 

2021-Apr-17 UT 19:58-21:34 Ill=26% Grimaldi observed by Price_M on 1980-4-20

     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.

2021-Apr-17 UT 20:43-21:57 Ill=27% Fracastorius observed by Robinson_JH on 1980-4-20

     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.

2021-Apr-17 UT 21:09-21:57 Ill=27% Petavius observed by Blair_G on 1980-4-20

     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. 

2021-Apr-17 UT 19:20-21:59 Ill=27% Earthshine: sporadic meteors

2021-Apr-18 UT 18:42-19:10 Ill=35% Linne observed by Buckingham on 1867-8-6

     Linne 1867 Aug 06 UT 21:00? Observed by Buckingham (England?) 
     "Crater in darkness, he saw a "rising oval spot". Other obs. 
     saw it as a triang. Bold black spot pointing to earth, slowly 
     diffused white & drift of white on slope of pyramid. (indep. 
     confirmation?)" NASA catalog weight=5 and catalog ID #155. 
     ALPO/BAA weight=2.

2021-Apr-18 UT 18:42-19:45 Ill=35% Apianus_D observed by Power_F on 2011-10-3

     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 

2021-Apr-18 UT 19:31-20:45 Ill=35% Censorinus observed by Holmes_D on 1988-11-15

     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=2.

2021-Apr-18 UT 20:03-21:43 Ill=35% Torricelli_B observed by Braga_R on 2001-4-29

     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. 

2021-Apr-18 UT 21:53-22:10 Ill=36% Mare_Crisium observed by Webb_TW on 1832-7-4

     Webb (England, using a fluid achromat) saw brilliant minute spots and 
     streaks in Mare Crisium dotting its surface. This was seen near first 
     quarter. Cameron states that Schroter, Betr?, Madler, Slack and Ingall 
     had all seen it this way at times. Cameron 1978 catalog iD=111 and 
     weight=3. ALPO/BAA weight=2.

2021-Apr-18 UT 22:44-22:50 Ill=36% Aristarchus observed by Butler_FC on 1981-3-12

     On 1981 Mar 12 at UT 19:25-20:30 Butler (of Brixton, UK, using a 
     10" reflector at 32-64x) noticed that Aristarchus was not 
     visible, although the Earthshine was very obvious. Foley (of 
     Kent, UK, and using  12" reflector) noticed that the crater was 
     only just visible but Plato could definitely be seen. Cameron's 
     2006 TLP extension catalog ID=125 and weight=0. ALPO/BAA 

2021-Apr-18 UT 19:21-22:52 Ill=36% Earthshine: sporadic meteors

2021-Apr-19 UT 18:44-19:07 Ill=45% Mons_Piton observed by Horne_P on 1983-3-21

     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.

2021-Apr-19 UT 18:44-21:52 Ill=45% Torricelli_B observed by Mobberley_M on 1984-4-8 *

     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.

2021-Apr-19 UT 18:44-19:42 Ill=45% Censorinus observed by Cook_MC on 1988-11-16

     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.

2021-Apr-19 UT 18:44-19:42 Ill=45% Torricelli_B observed by Cook_MC on 1988-11-16

     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.

2021-Apr-19 UT 18:54-19:37 Ill=45% Ross_D observed by Harris on 1964-3-21

     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.

2021-Apr-19 UT 19:38-21:27 Ill=45% Ptolemaeus observed by Sheperdson_P on 2020-2-1

     Ptolemaeus 2020 Feb 01 UT 19:40-19:50 P. Sheperdson (York, UK, 
     102mm Mak - BAA) saw an "ashen" sliver of bright light across 
     the floor. Images taken. This maybe normal appearance - though 
     observer re-observed in May and found the effect different in 
     that there was no "ashen" like effect. Visual sketches and 
     time lapse image sequences welcome. If doing visual work - try 
     using a polaroid filter and rotate it to see if that makes any 
     difference. For imaging work, please over-expose slightly to 
     bring out detail on the floor; you could also try colour 
     imaging of the floor as an interesting experiment - though for 
     comparison purposes image other terminator features exhibiting 
     shadow spires. ALPO/BAA weight=1.

2021-Apr-19 UT 20:07-21:31 Ill=45% SE_Limb observed by Rohslberger_R on 1980-4-22

     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.

2021-Apr-19 UT 20:32-22:00 Ill=45% Mons_Piton observed by Marshall_KP on 1983-5-20

     On 1983 May 20 at UT00:00-03:00 K. Marshall (Medellin, Columbia) 
     noted that Mons Piton was too bright near the terminator and was 
     surrounded by shadow. A sketch was made. The mountain appeared 
     segmented with one thin shadow line. The mountain looked like a 
     Mexican Sombrero hat. This appearance is normal. What was 
     abnormal was that Piton was brighter than Proclus, and only 
     slightly fainter than Censorinus. The CED brightness 
     measurements were normal Piton=3.6, Proclus=3.5 and Censorinus=
     3.7. Please check to see whether this is still the case. The 
     cameron 2006 catalog ID=221 and the weight=3. The ALPO/BAA 

2021-Apr-19 UT 20:34-21:37 Ill=45% Alphonsus observed by Lenham_AP on 1952-11-24

     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.

2021-Apr-19 UT 20:43-22:33 Ill=46% Manilius observed by Newport on 1965-12-30

     Dome W. of Manillius 1965 Dec 30 UT 10:35 Observed by Newport (England, 
     4" refractor x180) "White patch or haze, everything else was sharp" 
     NASA catalog weight=3 (average).

2021-Apr-19 UT 21:32-22:05 Ill=46% W_Limb observed by Miles_H on 1987-1-7

     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.

2021-Apr-19 UT 22:26-23:37 Ill=46% Alphonsus observed by Hopp on 1972-9-15

     Alphonsus 1972 Sep 15 UTC 18:48-18:56 Observed by Hopp (13.25E, 52.5N, 
     75mm refractor) "Diffuse white to blue area within the crater - not 
     sure" T=4, S=4. Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, 

2021-Apr-19 UT 23:02-23:37 Ill=46% Werner observed by Lippert_RM on 1953-9-16

     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 

2021-Apr-19 UT 19:23-23:39 Ill=47% Earthshine: (radio) Apr Piscids ZHR=low

2021-Apr-20 UT 18:45-18:58 Ill=55% Plato observed by Schroter on 1789-7-30

     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.

2021-Apr-20 UT 18:45-19:09 Ill=55% Plato observed by Markov on 1925-6-29 *

     Plato 1925 Jun 20 UT 20:00? Observed by Markov (Russia) "Light 
     bands in bottom seen in shadow & did not seem to be elevations. 
     These have been seen 5X from 1913-1922." NASA catalog weight=3. 
     NASA catalog ID #391. ALPO/BAA weight=2.

2021-Apr-20 UT 19:02-20:00 Ill=55% Eratosthenes observed by Lenham_AP on 1952-11-25

     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.

2021-Apr-20 UT 19:16-21:08 Ill=55% Eratosthenes observed by Abel_P on 2009-11-25

     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.

2021-Apr-20 UT 19:47-20:45 Ill=55% Alphonsus observed by Lenham_AP on 1952-11-25

     Alphonsus 1952 Nov 25 UT 17:15 A.P. Lenham (Swindon, UK, 3-
     inch refractor) noted that the usual dark spots were not 
     visible. 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 

2021-Apr-20 UT 20:03-21:24 Ill=56% Pallas observed by Stuart_L on 1953-11-15

     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.

2021-Apr-20 UT 20:43-20:52 Ill=56% Eratosthenes observed by Galdies_C on 2012-8-25

     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.

2021-Apr-20 UT 21:00-22:15 Ill=56% Aristarchus observed by Loocks on 1969-11-18

     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.

2021-Apr-20 UT 21:31-22:09 Ill=56% N_Pole observed by Harris on 1912-1-28

     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.

2021-Apr-20 UT 21:40-23:12 Ill=56% Eratosthenes observed by Hill_H on 1947-1-30

     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."

2021-Apr-20 UT 21:44-22:38 Ill=56% Eratosthenes observed by Longshaw_N on 2017-5-4

     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.

2021-Apr-20 UT 23:32-23:58 Ill=57% Aristarchus observed by Tempel on 1886-6-10

     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 

2021-Apr-21 UT 19:03-21:46 Ill=66% Eratosthenes observed by Haas_W on 1936-10-25 *

     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 

2021-Apr-21 UT 19:54-20:15 Ill=66% Copernicus observed by Lovell on 1966-3-1

     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.

2021-Apr-21 UT 20:08-21:14 Ill=66% Alphonsus observed by Argus on 1969-11-19

     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.

2021-Apr-21 UT 20:49-21:55 Ill=66% Plato observed by Brook_C on 2005-12-10

     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.

2021-Apr-21 UT 22:49-00:44 Ill=67% Messier observed by Kelsey on 1966-12-22

     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.

2021-Apr-21 UT 22:51-00:06 Ill=67% Mons_Piton observed by Moore_P on 1958-9-23

     Piton 1958 Sep 23 UT 00:00? Observed by Moore? (UK?) "Enveloped 
     in an obscuring cloud-like mist" NASA catalog ID 697. NASA 
     catalog weight=2. ALPO/BAA weight=2.

2021-Apr-21 UT 23:22-00:26 Ill=67% Plato observed by Petek on 1980-4-24

     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.

2021-Apr-21 UT 23:45-00:54 Ill=67% Cichus observed by Ryder_JW on 1975-9-15

     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.

2021-Apr-22 UT 00:07-00:54 Ill=67% Torricelli_B observed by Moseley_R on 1985-3-1

     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.

2021-Apr-22 UT 00:12-00:54 Ill=67% Censorinus observed by Druzdov on 1927-4-11

     Censorinus-Maskelyne 1927 Apr 11/12 UTC 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 (average). NASA catalog ID #393.

2021-Apr-22 UT 00:16-02:29 Ill=67% Mare_Imbrium observed by Caruso_J on 1979-8-3 *

     A region of the Mare Imbrium was extremely bright, giving
     a reading of 8 out of 10 on the Elger scale. Cameron notes
     that from photos of the Full Moon, the area appears to
     normally be the brightness of Archimedes floor i.e. 3.5 out
     of 10 on the Elger scale. Atmospheric seeing was excellent
     and the observer could see a lot of fine detail with their
     2.4" and 3" refractors. Cameron 2006 catalog extension ID=62
     and weight=3.

2021-Apr-22 UT 18:48-19:34 Ill=76% Sinus_Iridum observed by Brook_C on 1996-4-28

     Sinus Iridum 1996 Apr 28 UT 20:00 Observed by Brook (Plymouth, 
     UK, 60mm refractor, x112, seeing III, slight breeze, twilight) 
     "dark shaded area on floor ~1/4 diameter of Sinus Iridum on 
     western interior by rim" BAA Lunar Section Observation. 
     ALPO/BAA weight=1.

2021-Apr-22 UT 19:53-23:42 Ill=76% Bullialdus observed by Cook_AC on 1979-8-3 *

     Bulialdus 1979 Aug 03 UT 21:36-21:48 Observed by Cook (Frimley, UK, 
     seeing III, Moonblink device) "Bullialdus eastern side of the crater 
     looked brighter in red i.e. rim and exterior, extending to the south 
     slightly and this reddish areas was slightly hazy. At 21:41 it clouded 
     over but at 21:47-21:48 it cleared briefly and effect was noted again. 
     Also Darney appeared very visible through the red filter. Probably 
     spurious colour as the Moon was -18 deg in declination and the whole 
     Moon had a slight brownish tinge" ALPO/BAA weight=1.

2021-Apr-22 UT 20:04-23:53 Ill=76% Darney observed by Cook_AC on 1979-8-3 *

     Darney observed by Cook (Frimley, UK, seeing III, Moonblink device) 
     See TLP report for Bullialdus (eastern side) concerning reddish
     areas. At 21:41 it clouded over but at 21:47-21:48 it 
     cleared briefly and the effect was noted on Bulialdus again.
     Also Darney appeared very visible through the red filter. 
     Probably both effects were spurious colour related as the Moon 
     was -18 deg in declination and the whole Moon had a slight 
     brownish tinge. An ALPO/BAA weight of 1 is assigned to this TLP."

2021-Apr-22 UT 22:08-22:58 Ill=77% Alphonsus observed by Argus on 1969-11-20

     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.

2021-Apr-22 UT 22:57-00:48 Ill=77% Mare_Imbrium observed by Unknown_Observer on 1820-10-17

     In 1820 Oct 17 at UT 20:00 an unkown observer reported in Mare Imbrium, 
     south of Sinus Iridum (30W, 40N) some brilliant spots. The Cameron 1978 
     catalog ID=80 and weight=1. The ALPO/BAA weight=1.

2021-Apr-22 UT 22:59-00:53 Ill=77% Plato observed by Kelsey on 1966-12-23

     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.

2021-Apr-22 UT 23:50-01:23 Ill=77% Gassendi observed by Sims_DM on 1977-5-28

     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.

2021-Apr-22 UT 23:51-01:10 Ill=77% Gassendi observed by Darling_D on 1990-9-30

     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.

2021-Apr-22 UT 23:57-02:15 Ill=77% Censorinus observed by Marshall on 1985-3-2 *

     On 1985 Mar 02 at 20:00UT? Marshall (Medeline, Colombia, South America)
     measured some very low Crater Extinction Device brightness readings of 
     Censorinus compared to Proclus. The Cameron 2006 catalog extension ID=
     261 and the weight=3. ALPO/BAA weight=2.

2021-Apr-23 UT 18:50-20:36 Ill=85% Gassendi observed by Moseley_T on 1967-3-22 *

     Gassendi 1967 Mar 22 UTC 19:39-19:43 Observed by Mosely (Armagh, N. 
     Ireland, 10" refractor, x360) "Red color & blink strongly suspected 
     in small area centred on junction of 3 clefts 1/2 way from c.p. & 
     ESE wall. Well-defined & did not note change during obs. period. 
     Clouds terminated obs. till 2120 when it was not seen." NASA 
     catalog weight=3 (average). NASA catalog ID #1018.

2021-Apr-23 UT 18:50-19:47 Ill=85% Aristarchus observed by Darling_D on 1989-9-12

     On 1989 Sep 12 at UT00:58-02:25 D. Darling (Sun Praire, WI, USA, 12.5" 
     reflector, x159, S=7/10) observed similar light conditions to 1989 Jul 
     15. At 02:00 he observed pink on the south west wall of Aristarchus 
     crater. At 01:24UT the Aristarchus ray was yellowish, however the 
     entire Moon had a grey-yellow tinge of colour. Chromatic aberation was 
     observed at 01:56UT. By comparison Gassendi was checked and had no 
     colour. At 02:10 the crater wall of Aristarchus was unusual and was 
     quite different in appearance to rims of other craters. The cameron 
     2006 catalog ID=375 and the weight=1. The ALPO/BAA weight=1. 

2021-Apr-23 UT 18:50-20:32 Ill=85% Mersenius_C observed by Ward_G on 2005-11-13

     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.

2021-Apr-23 UT 18:52-22:39 Ill=85% Gassendi observed by Unknown_Observer on 1889-5-11 *

     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.

2021-Apr-23 UT 19:39-21:28 Ill=85% Aristarchus observed by Foley_PW on 1975-10-16

     Aristarchus 1975 Oct 16 UT 20:00? Observed by Foley (Kent, 
     England, 12" reflector) "Deep blue-viol. spot in NW (IAU?) 
     interior corner." NASA catalog weight=3. NASA catalog ID #
     1413. ALPO/BAA weight=1.

2021-Apr-23 UT 20:26-21:10 Ill=85% Vallis_Schroteri observed by Thornton_FH on 1949-2-10

     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.

2021-Apr-23 UT 20:35-21:13 Ill=85% Bullialdus observed by Findlay_MW on 1974-9-27

     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.

2021-Apr-23 UT 21:00-22:10 Ill=85% Gassendi observed by Darling_D on 1990-10-1

     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.

2021-Apr-23 UT 21:30-23:00 Ill=85% Aristarchus observed by Neville on 1971-9-1

     Aristarchus 1971 Sep 01 UT 20:45-21:05 Observed by Neville, 
     Cunnington (Nottingham, UK, 4" refractor x180, altitude, low) 
     "Saw a bright glow, especially in E. wall (Confirm. but not 
     indep.?)" NASA catalog weight=3. NASA catalog ID #1310. 
     ALPO/BAA weight=1.

2021-Apr-23 UT 21:59-23:39 Ill=85% Aristarchus observed by Prout on 1976-9-5

     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 

2021-Apr-23 UT 22:07-23:58 Ill=86% Proclus observed by Bartlett on 1970-10-12

     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.

2021-Apr-23 UT 22:25-22:34 Ill=86% Vallis_Schroteri observed by Firsoff on 1955-8-29

     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.

2021-Apr-23 UT 22:52-00:10 Ill=86% Herodotus observed by Bartlett on 1957-9-6

     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 (high). NASA catalog ID #671. ALPO/BAA weight=3.

2021-Apr-23 UT 23:06-00:26 Ill=86% Deslandres observed by Penzel_E on 1965-5-12

     On 1965 May 12 at UT 19:10 E. Penzel (Rodewisch, East Germany) was 
     taking a sequence of images during the impact of the Soviet Lunik 5. He 
     detected a tens of km scale elongated cloud after the impact over a 
     duration of 9.5 minutes. However there are differences between the 
     images elsewhere on the Moon, possibly due to different exposures or 
     some other effects and it is not 100% sure that what he detected was 
     impact debris/cloud?. The ALPO/BAA weight=3.

2021-Apr-23 UT 23:39-00:45 Ill=86% Schickard observed by Watkins_E on 1972-9-19

     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.

2021-Apr-23 UT 23:39-00:03 Ill=86% Herodotus observed by Haas_W on 2002-2-24

     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.

2021-Apr-23 UT 23:45-03:19 Ill=86% Aristarchus observed by Kozyrev on 1955-10-28 *

     On 1955 Oct 28 at UT00:00? Kozyrev (Crimea, Soviet Union, 50" 
     reflector) detected in Aristarchus Fraunhofer lines in UV spectra that 
     were much narrower than in the solar spectrum. This indicated 
     luminescent glow which overlapped contour(?) lines. Greatest after Full 
     Moon, but fluctuated monthly with no indication of solar activity 
     effect. The Cameron 1978 catalog ID=621 and the weight=5. The ALPO/BAA 

2021-Apr-23 UT 23:51-03:19 Ill=86% Mare_Vaporum observed by Taylor_W on 1955-10-28 *

     On 1955 Oct 28 at UT 00:06 W. Taylor saw a naked eye flash on the Moon 
     in the north east area, on the edge of Mare Vaporum. The flash was 
     intense and radiated to a large area. The duration was 1/4 seconds.

2021-Apr-24 UT 00:24-01:47 Ill=86% Mons_Pico observed by Rawstron on 1933-10-1

     On 1933 oct 01 at UT 03:00 Rawstron (USA, 4" refractor, x330) observed 
     the following in Mons Pico B: "Haze -- much narrower & elongated than 
     on Sep. 1". The Cameron 1978 catalog ID=407 and weight=3. The ALPO/BAA 

2021-Apr-24 UT 00:30-00:52 Ill=86% Herodotus observed by Haas_W on 2002-2-24

     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.

2021-Apr-24 UT 00:49-01:47 Ill=86% Herodotus observed by Haas_W on 1954-8-11

     Observed by Haas (Las Cruces, NM, USA) "Temporary greyness seen in 
     interior shadow." ALPO/BAA weight=3.

2021-Apr-24 UT 01:34-01:47 Ill=86% Aristarchus observed by Klein_HJ on 1881-8-7

     Aristarchus, Schroter's Valley, Herodotus 1881 Aug 07 UT 00:00? 
     Observed by Klein (Cologne, Germany, 6" refractor, 5" reflector) "Whole 
     region between these features appeared in strong violet light as if 
     covered by a fog spreading further on 7th. Examined others around & 
     none showed effect. Intensity not altered if Aris. placed out of 
     view." NASA catalog weight=4 (high). NASA catalog ID #224.

2021-Apr-24 UT 18:51-19:54 Ill=92% Aristarchus observed by Johnson on 1937-9-17 *

     Johnson, of Des Moines, Iowa, USA, using a 7" reflector and an 8" 
     refractor, saw a bight streak. The observer looked later, but it was no 
     longer visible. Cameron thinks that it might have been a reflection 
     from the wall. Cameron 1978 catalog ID=423 and weight=1. ALPO/BAA 

2021-Apr-24 UT 18:51-19:35 Ill=92% Aristarchus observed by Sartory on 1967-3-23 *

     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.

2021-Apr-24 UT 18:51-19:35 Ill=92% Gassendi observed by Sartory on 1967-3-23 *

     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.

2021-Apr-24 UT 18:51-20:29 Ill=92% Aristarchus observed by Darling_D on 1990-11-30 *

     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.

2021-Apr-24 UT 18:51-19:45 Ill=92% Gassendi observed by Brook_C on 2007-10-23

     A fleeting faint reddish patch was seen in Gassendi 
     at 21:15UT. This observation has an ALPO/BAA weight of 2.

2021-Apr-24 UT 19:13-21:05 Ill=92% Herodotus observed by Kozyrev on 1955-10-28

     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.

2021-Apr-24 UT 19:52-21:41 Ill=92% Mersenius observed by McConnell_J on 1975-6-21

     Mersenius 1975 Jun 21 UT 21:50-22:45 Observed by McConnell 
     (Northern Ireland, 6" reflector) Moore? (Sussex, Enland, 15" 
     reflector, 5" refractor, S=F), Reading (Rushden, England, ? 
     14" reflector) and Foley (Kent, England, 12" reflector, S=P) 
     "McConnell saw an obscur. starting at 2150h which disappeared 
     at 2245h. Moore(?) alreted, saw no anomaly in 15 in refl. & 
     5-in refr. under fair conditions from 2209-2228h. Reading 
     reported neg. fr. 2250-2345h (after phenom.). Foley reported 
     color in it but also a crater to S. of it & Aris., prob. due 
     to seeing conditions." NASA catalog weight=5. NASA catalog 
     ID#1408. ALPO/BAA weight=3.

2021-Apr-24 UT 20:32-22:28 Ill=92% Aristarchus observed by Firsoff on 1954-8-11

     1954 Aug 11 observed by Firsoff (Somerset, UK, 6.5" reflector, 
     x200) "Brilliant in red filter, variable)" NASA catalog 
     weight=4. NASA catalog ID #570. ALPO/BAA weight=3.

2021-Apr-24 UT 20:42-22:20 Ill=93% Aristarchus observed by Azeau on 1971-9-2

     Aristarchus-Herodotus 1971 Sep 02 UTC 20:00 Observed by Ayeau 
     (Paris, France, 12" reflector, x100) "Brownish-red or maroon 
     seen on Aris. W.wall ridge to Herod. on S.wall of Herodotus" 
     NASA catalog weight=2. NASA catalog ID #1311. 
     ALPO/BAA weight=2.

2021-Apr-24 UT 21:46-23:24 Ill=93% Ross_D observed by Harris on 1965-4-14

     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 

2021-Apr-24 UT 21:54-22:22 Ill=93% Babbage observed by Lord_CJR on 1974-9-29

     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.

2021-Apr-24 UT 22:34-22:58 Ill=93% Archimedes observed by North_G on 1988-9-23

     On 1988 Sep 23 at 19:40-19:55 & 20:36-20:41 G. North (760mm 
     Coude Rrefractor, x250, Royal Grenwwich Observatory, 
     Herstmonceux, UK, seeing V, Transparency: Fair). 19:40-19:55 
     image very unsteady. All seems normal in other crtaters with 
     the exception of Arcimedes. Much of the rim seems indistinct 
     apart from a 1/4 length of the west rim. Strongly suspected 
     that this was due to a combination of seeing and illumination. 
     UT 20:02-20:06 - checked the area with a lower magnification 
     10" Astrographic Refractor - the crater seems more normal, so 
     suggesting that the theory was correct. 20:36-20:41 returned 
     to the 30" reflector, and the crater appeared similar to the 
     start of the session. This is almost certainly not a TLP, but 
     it would be helpful to have some images or sketches to check 
     this theory out. Weight=1.

2021-Apr-24 UT 22:48-23:42 Ill=93% Plato observed by Darling_D on 1990-10-2

     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.

2021-Apr-24 UT 23:08-00:58 Ill=93% Gassendi observed by Robinson_JH on 1977-5-30

     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.

2021-Apr-24 UT 23:15-00:25 Ill=93% Aristarchus observed by De_Groof on 1987-3-13

     On 1987 Mar 13 at UT02:00-03:00 De Groof (Belgium, 8" reflector x150, 
     seeing=clear) noted that the north west part of Aristarchus had a blood 
     red shimmering filling the whole crater. A video by Mobberley some 18 
     hours later, shows variation in Aristarchus. Cameron 2006 catalog ID=
     301 and weight=5. ALPO/BAA weight=3.

2021-Apr-25 UT 01:06-02:05 Ill=93% Vallis_Schroteri observed by Darling_D on 1991-8-23

     Flashing spot at end of SV fluctuated. Herzog, Darling &
     Weier confirmed spot but not fluctuation. Spot brighter in red
     than blue, but Cobra Head was bright in blue. No other region was 

2021-Apr-25 UT 01:14-02:05 Ill=93% Aristarchus observed by Amery_GW on 1978-4-20

     Amery (Reading, England) saw blue in Aristarchus but a photograph did 
     not show the colour. Foley thinks this was spurious colour. Cameron 
     2006 extension catalog ID=27. ALPO/BAA weight=1.

2021-Apr-25 UT 01:14-02:05 Ill=93% Promontorium_Laplace observed by Foley_PW on 1978-4-20

     Peter Foley observed a tiny yellow-brown region close
     to the tip of the cape, north east of the precipitous west
     edge, in the face of the north facing slope. The area
     concerned was diffuse and varied in density despite
     the surroundings not varying. Foley notcied no colour
     elsewhere on the Moon, though Amery thought that he saw
     some in Aristarchus, but Foley thinks this was spurious.
     Cameron 2006 catalog extension ID=27 and weight=5.
     ALPO/BAA weight=3.

2021-Apr-25 UT 19:10-19:14 Ill=97% Aristarchus observed by Mobberley_M on 1987-3-13

     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.  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.

2021-Apr-25 UT 19:10-19:14 Ill=97% Mons_Pico observed by Mobberley_M on 1987-3-13

     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.

2021-Apr-25 UT 19:35-21:23 Ill=97% Aristarchus observed by Foley_PW on 1975-10-18

     Aristarchus 1975 Oct 18 UTC 20:00? Observed by Foley (Kent, England, 
     12" reflector) "Deep blue-viol. spot in NW (IAU?) interior corner." 
     NASA catalog weight=3 (average). NASA catalog ID #1415.

2021-Apr-25 UT 20:39-22:24 Ill=98% Aristarchus observed by Azeau on 1971-9-3

     Aristarchus and Herodotus UT 20:00? Observed by Areau (Paris, France, 
     12" reflector x100) "Maroon color covering the ridge(?) E (ast. ?) & 
     the ridge(?) S. of Herod. In 3 or 5 secs. Cloud disappeared after 10 
     min." NASA catalog weight=3 (average) NASA catalog ID #1312.

2021-Apr-25 UT 21:46-23:24 Ill=98% Lichtenberg observed by Baum_R on 1951-1-21

     Lichtenberg 1951 Jan 21 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=2.

2021-Apr-25 UT 21:51-00:35 Ill=98% Riccioli observed by Madej_P on 1979-8-6 *

     On 1979 Aug 06 at 22:24-22:54 P.Madej (Hudersfield, UK, 6" 
     reflector. Purple Wratten 35, and Yellow Wratten 15 filters 
     used) Orange glow seen (at x73) on west side of crater, near the 
     central peak. The central peak was coloured too at x110. At 
     22:32 (x75) the central peak was brighter than the rest of the 
     area wrough the yellow filter. At 22:34UT at x73 everything 
     looked OK through the purple filter. The TLP was still visible 
     at 22:54. ALPO/BAA weight=1.

2021-Apr-25 UT 22:51-00:46 Ill=98% Schickard observed by Moore_P on 1940-5-20

     Schickard 1940 May 20 UT 20:00 Observed by Moore (England, 12?" 
     eflector) "Fog on floor -- milky appearance, less pronounced 
     than on 8/2/39 (see #456)." NASA catalog ID #465. NASA catalog 
     weight=4. ALPO/BAA weight=2.

2021-Apr-25 UT 22:55-00:52 Ill=98% Plato observed by Taylor_A on 1971-1-10

     Plato 1971 Jan 10 UTC 20:17-20:42 Observed by Taylor (Slough, England, 
     8.5" reflector) "Blink (dark gray to black), 13x3km diam. on E. wall & 
     floor in indentation in wall. Smaller by 2028 h. gone at 2035h. 
     Reappeared at 2028h & gone completely at 2042h)." NASA catalog weight=3 
     (average). NASA catalog ID #1282.

2021-Apr-26 UT 00:18-03:39 Ill=98% Helicon observed by Caruso_J on 1979-8-7 *

     The area west of Helicon not visible despite the area being 
     fairly bright at Full Moon time. This area was a very bright 
     patch one night. Cameron notes: comensurability of Full Moon & 
     Perigee. Cameron 2006 catalog extension ID=64 and weight=3. 
     Seeing=7 and transparency=4. 2.4" refractor used. ALPO/BAA 

2021-Apr-26 UT 00:23-02:01 Ill=98% Mare_Humboldtianum observed by Baum_R on 1951-1-21

     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 

2021-Apr-26 UT 00:35-02:17 Ill=98% Madler observed by Haas_W on 1940-8-17

     Madler 1940 Aug 17 UTC 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=5.9 on this date but 
     6.8 on Sep. 16, when observ. cond. were similar (see #473)" NASA 
     catalog weight=4. NASA catalog ID #470. ALPO/BAA weight=3.

2021-Apr-26 UT 20:49-21:19 Ill=100% Mare_Crisium observed by Brook_C on 2000-6-16

     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.

2021-Apr-26 UT 21:01-22:06 Ill=100% Censorinus observed by Hopmann on 1964-4-26

     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.

2021-Apr-26 UT 21:17-22:58 Ill=100% Archimedes observed by Haas_W on 1940-8-18

     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.

2021-Apr-26 UT 21:21-22:55 Ill=100% Proclus observed by Farrant_M on 1972-11-20

     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.

2021-Apr-26 UT 23:04-00:37 Ill=100% Gassendi observed by Kelsey on 1966-12-27

     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.

2021-Apr-27 UT 00:01-01:03 Ill=100% Aristarchus observed by Foley_PW on 1989-10-14

     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.

2021-Apr-27 UT 02:24-02:27 Ill=100% Aristarchus observed by Theiss on 1973-8-13

     Aristarchus 1973 Feb 15 UTC 17:07-19:31 Observed by Theiss (located at 
     51N 5.67E) "area 4-5 diameters of Aristarchus were coloured clearly 
     yellow-red" 120mm reflector used. Ref Hilbrecht & Kuveler (1984) Moon 
     and Planets Vol 30 p53-61. ALPO/BAA weight=1.

2021-Apr-27 UT 22:46-00:00 Ill=99% Proclus observed by Farrant_M on 1972-11-21

     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.

2021-Apr-27 UT 22:46-00:10 Ill=99% Arago_B observed by Mobberley_M on 1983-1-29

     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. 

2021-Apr-27 UT 22:46-23:59 Ill=99% Aristarchus observed by Marshall_KP on 1983-5-28

     On 1983 May 28 at UT 01:50-03:00 K. Marshall (Medellin, Columbia) 
     observed the whole region of Aristarchus, Herodotus and Shroter's 
     Valley all to have a brightness of 3 and all blue and impossible to 
     focus on (he had never seen it like this before). Also the interior of 
     Aristarchus was invisible. Brightness measurement taken and a sketch 
     was made. The Cameron 2006 catalog ID=222 and the weight=3. The 
     ALPO/BAA weight=3.

2021-Apr-27 UT 22:46-00:10 Ill=99% Moltke observed by Mobberley_M on 1983-1-29

     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.

2021-Apr-28 UT 00:24-01:04 Ill=99% Torricelli_B observed by Cook_AC on 1985-12-28

     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.

2021-Apr-28 UT 02:09-02:24 Ill=99% Copernicus observed by Rawlings_G on 1978-4-23

     On 1978 Apr 23 at UT20:35 (Rawlings, UK, finderscope, x50) 
     observed a bright flash (~0.3 sec duration) near to Copernicus (20W, 
     9N) with rays to the south east whilst he looked through a finder 
     scope. Moore, who studied the drawing, suggests that the area of the 
     flash was near Copernicus. However Cameron says this cannot be the case 
     if the flash was in darkness as mentioned in the BAA Lunar Section 
     circular. She comments that it might have been a meteor? The Cameron 
     2005 catalog ID=28 and weight=1. The ALPO/BAA weight=1.