TLP Repeat Illumination/Libration and Earthshine predictions for: USA AK Anchorage



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-15 UT 05:14-05:18 Ill=8% Montes_Haemus observed by Hobdell on 1981-5-7

     On 1981 May 07 at UT01:25 B. Hobdell (St Petersburg, FL, USA") 
     observed an intantaneous bluish flash in the Plinius-Menlaus 
     region. Other flashe seen on Aristarchus that night. The 
     ALPO/BAA weight=1.


2021-Apr-15 UT 05:14-05:39 Ill=8% Aristarchus observed by Amery_GW on 1983-2-15

     On 1983 Feb 15 at UT 18:00? G. Amery (Reading, UK) found that he could 
     not see Aristarchus in Earthshine, despite less normally prominent 
     features being clearly seen. This observation was confirmed. Other 
     observers were: Moore, Cooks, and Foley. The Cameron 2006 catalog ID=
     202 and weight=2. The ALPO/BAA weight=2.


2021-Apr-15 UT 05:33-05:39 Ill=8% Abulfeda observed by Ossola on 1987-2-1

     On 1987 Feb 01 at 18:00?UT Ossola (Muzzano, Switzerland, using a 6" 
     reflector) obtained a clear photograph of the Earthshine of the Moon. 
     Abulfeda was quite bright. Cameron 2006 Catalog Extension ID=293 and 
     weight=2. ALPO/BAA weight=2.


2021-Apr-15 UT 05:33-05:39 Ill=8% Aristarchus observed by Ossola on 1987-2-1

     On 1987 feb 01 at 18:00?UT Ossola (Muzzano, Switzerland, using a 6" 
     reflector) obtained a clear photograph of the Earthshine of the Moon. 
     Aristarchus was brighter than in Homes photograph of 1988 Apr 29, but 
     the mare areas were darker. Futhermore features in the 1988 photograph 
     looked sharper. Cameron 2006 Catalog Extension ID=293 and weight=2. 
     ALPO/BAA weight=1.


2021-Apr-15 UT 05:33-05:39 Ill=8% Copernicus observed by Ossola on 1987-2-1

     On 1987 feb 01 at 18:00?UT Ossola (Muzzano, Switzerland, using a 6" 
     reflector) obtained a clear photograph of the Earthshine of the Moon. 
     Copernicus was brighter than in Homes photograph of 1988 Apr 29, but 
     the mare areas were darker. Futhermore features in the 1988 photograph 
     looked sharper. Cameron 2006 Catalog Extension ID=293 and weight=2. 
     ALPO/BAA weight=1.


2021-Apr-15 UT 05:33-05:39 Ill=8% Tycho observed by Ossola on 1987-2-1

     On 1987 feb 01 at 18:00?UT Ossola (Muzzano, Switzerland, using a 6" 
     reflector) obtained a clear photograph of the Earthshine of the Moon. 
     Tycho was quite bright. Cameron 2006 Catalog Extension ID=293 and 
     weight=2. ALPO/BAA weight=1.


2021-Apr-16 UT 05:16-06:31 Ill=14% Aristarchus observed by Amery_GW on 1983-2-16

     On 1983 Feb 15 at UT 18:00? G. Amery (Reading, UK) found that he could 
     not see Aristarchus in Earthshine, despite less normally priminent 
     features being clearly seen. This observation was confirmed. Other 
     observers were: Moore, Cooks, and Foley. The Cameron 2006 catalog ID=
     203 and weight=2. The ALPO/BAA weight=2.


2021-Apr-16 UT 06:13-06:52 Ill=15% Earthshine: sporadic meteors

2021-Apr-17 UT 05:19-06:18 Ill=22% Moon observed by Day on 1881-9-28

     On 1881 Sep 28 at UT 03:00 Day (Prescott, AZ, USA) 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-17 UT 05:19-05:20 Ill=22% Picard observed by Neate on 1909-3-26

     E. of Picard 1909 Mar 26 UTC 19:15-20:20 Observed by Neate (England, 
     4" refractor x170) "Bright spot. (feature is similar to Linne. Rays 
     difficult to see till high sun). Hazy ill-defined brighter in S. 
     (Draw.)." NASA catalog weight=1 (low). NASA catalog ID #329.


2021-Apr-17 UT 05:19-06:36 Ill=22% Grimaldi observed by Johnson_LT on 1951-1-13

     1951 Jan 13 UT 00:43 L.T.Johnson (USA) observed a faint flash 
     near W limb in earthshine - just S of Grimaldi. 
     ALPO/BAA weight=1. 


2021-Apr-17 UT 05:19-06:44 Ill=22% Aristarchus observed by Miles_H on 1990-1-1 *

     On 1990 Jan 01 at UT 16:55-18:45 H. Miles (Cornwall, UK) observed that 
     Aristarchus was seen in Earthshine at 16:55UT before the limb (was 
     visible in Earthshine?). "1705 Aris>>1723 fading 1727 > again." Then: 
     "1740 Aris << and just visible at 1845". Apparently Foley suspects that 
     Aristarchus had brightened up before 16:55UT (shwen H. Miles started to 
     observe) and then gradually retruned to normal. The Cameron 2006 
     catalog ID=385 and the weight=0. The ALPO/BAA weight=1.


2021-Apr-17 UT 05:19-07:17 Ill=22% Copernicus observed by Miles_H on 1990-1-1 *

     On 1990 Jan 01 at UT 17:29 H. Miles (Cornwall, UK) observed that 
     Copernicus had a faint glow in it. The Cameron 2006 catalog ID=385 and 
     the weight=0. ALPO/BAA weight=1.


2021-Apr-17 UT 05:37-07:26 Ill=22% Aristarchus observed by Amery_GW on 1983-2-17

     On 1983 Feb 17 at 19:00?UT G. Amery (Reading, UK) noticed that 
     Aristarchus was not visible in Earthshine, despite other less prominent 
     features being seen. The observation was confirmed by other observers. 
     The Cameron 2006 catalog extension ID=204 and the weight=2. The 
     ALPo/BAA weight=2.


2021-Apr-17 UT 05:37-07:26 Ill=22% Messier observed by Amery_GW on 1983-2-17

     On 1983 Feb 17 at 19:00?UT G. Amery (Reading, UK) noticed that 
     Messier was ill-defined. The Cameron 2006 catalog extension ID=204 and 
     the weight=2. The ALPo/BAA weight=1.


2021-Apr-17 UT 06:14-07:51 Ill=22% Aristarchus observed by Celis on 1969-10-16

     On 1969 Oct 16 at UT 00:00-00:30 Celis (Quilpue, Chile, 3" refractor, 
     x60, seeing=very good) observed brilliant points at 8.5 magnitude in 
     Aristarchus. This was not seen the next night or the one after, nor 
     after 5 days age. The Cameron 1978 catalog ID=1204 and weight=1. The 
     ALPO/BAA weight=1.


2021-Apr-17 UT 06:17-07:18 Ill=22% Prinz observed by Deane on 1968-12-24

     On 1968 Dec 24 at UT 19:30-20:00 Deane (London, UK, 2" refractor) 
     observed the following in the Prinz-Harbinger Mountains area: "Bright 
     yellow spot seen E. of Aris. fr. S. end of Harbinger mts, to S. wall of 
     Prinz. Back to normal at 2000h. Many other areas observed were normal. 
     (alerted for tidal predict. by Middlehurst, & Apollo 8 watches)". The 
     Cameron 1978 catalog ID=1110 and weight=1. The ALPO/BAA weight=1. 


2021-Apr-17 UT 06:16-07:57 Ill=22% Earthshine: sporadic meteors

2021-Apr-18 UT 05:22-06:17 Ill=30% Plato observed by Webb_TW on 1872-3-15

     Plato 1872 Mar 15 UT 20:00? Observed by Webb? (England?, 9" 
     reflector?) "Internal twilight in crater, same remarks as in #
     173 -- could 8. be misprint in #173? Schmidt 2X saw cavity of 
     Boussingalt feebly illum. at sunrise as tho filled with 
     mist."NASA catalog weight=3. NASA catalog ID #177.ALPO/BAA 
     weight=1.


2021-Apr-18 UT 05:22-05:48 Ill=30% Kant observed by Trouvelot on 1873-1-4

     Kant 1873 Jan 04 UT 23:00? Observed by Trouvelot (Cambridge, Mass, 8" 
     refractor) "Luminous puplish vapors" NASA catalog weight=3 (average). 
     NASA catalog ID #180.


2021-Apr-18 UT 05:22-06:07 Ill=30% Aristarchus observed by Hobdell on 1981-5-10

     On 1981 May 10 at UT02:16-03:12 B. Hobdell (St Peterburg, FL, USA, 2?" 
     refractor, the Moon was at a very low altitude) found that the NNW wall 
     of Aristarchus increased in brightness and extended to an arc of the 
     east wall. There were bright flashes in roughly 2 minute intervals. 
     There were also two yellow spots at 5 and 8 o'clock on the east wall. 
     At 02:44UT a bright yellow flash was seen on the NNW rim and by 02:49UT 
     the complete crater was very bright, inparticular on the western wall. 
     Further bright flashes were seen at 02:52UT and at 03:11UT many bright 
     blue points were seen. Finally an obsecuration was seen at 03:12UT. The 
     observer checked for spurious colour but none was seen. The Cameron 
     2006 catalog ID=137 and weight=0. The ALPO/BAA weight=1. 


2021-Apr-18 UT 05:35-07:21 Ill=30% Mare_Crisium observed by Foley_PW on 1983-2-18

     On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that the 
     southern Mare Crisium appeared to be obscured by a pale grey haze. 
     Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.


2021-Apr-18 UT 05:35-07:21 Ill=30% Torricelli_B observed by Foley_PW on 1983-2-18

     On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that Toricelli B 
     was steel blue in colour and this spread 10-15 miles outside the 
     crater. This was odd because Torricelli B was only 6 miles in size. 
     Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.


2021-Apr-18 UT 06:01-07:56 Ill=30% Ross_D observed by Bender on 1964-2-19

     SE of Ross D 1964 Feb 19 UT 03:00 Observed by Bender (Whittier, CA, 
     USA, 19?" reflector) "Variations in the ring" NASA catalog weight=1. 
     NASA catalog ID #800. ALPO/BAA weight=1.


2021-Apr-18 UT 06:19-08:55 Ill=31% Earthshine: sporadic meteors

2021-Apr-19 UT 05:24-05:33 Ill=39% Menelaus observed by Bartlett on 1976-9-1

     Menelaus 1976 Sep 01 UT 00:40 Observed by Bartlett (Baltimore, MD, USA, 
     4.5" reflector, 45-300x) "Upper 1/2 of W.wall bright white (8deg). 
     Lower 1/2 much duller at 4 deg & distinctly bluish-gray. Same as seen 
     in Aris. & Grimaldi & thinks it is due local agency (gas?)." NASA 
     catalog weight=4 (high). NASA catalog ID #1447.


2021-Apr-19 UT 05:24-06:49 Ill=39% Censorinus observed by Cook_MC on 1987-11-27

     On 1987 Nov 27 at 20:56-21:12 UT M.C. Cook (Frimley, UK, seeing 
     IV-V) saw spurious colour on the Proclus floor and also on the 
     rim.  At 20:56UT Censorinus was quite dull and diffuse, spurious 
     colour but no blink. Sketches made. Cameron 1978 catalog ID=314 
     and weight=5. The ALPO/BAA weight, in view of the poor 
     observing conditions is 2.


2021-Apr-19 UT 05:24-05:28 Ill=39% Proclus observed by Cook_MC on 1987-11-27

     On 1987 Nov 27 at 19:35-21:04 UT M.C. Cook (Frimley, UK, 
     seeing IV-V) saw spurious colour on the crater floor and also 
     on the rim. Two bright spots were seen on the west rim (the 
     brightest one was on the NW rim). Saw >>N-NW lip 21:00UT 
     blink in red. The was apparently confirmed by A.C. Cook 
     (according to Cameron) at 21:04UT. The ALPO/BAA weight, in 
     view of the poor observing conditions is 1.


2021-Apr-19 UT 05:57-07:38 Ill=40% Censorinus observed by Cook_MC on 1983-4-19

     On 1983 Apr 19 at 21:45UT M.C. Cook (Frimley, UK) reported that 
     Censorinus' exterior white patch was grayish at this time and there was 
     a "momentary glow outisde the crater to the North West. The Crater 
     Extinction Device brightness measurement for Censorinus was 4.0 whereas 
     Proclus was 4.4. Cook was expecting a lower CED brightness measurement. 
     Foley notes that Censorinus is usually brighter than Proclus. On 1983 
     Jan 29 Chapman obtained a very high brightness measurement for this 
     spot. The Cameron 2006 catalog extension ID=212 and the weight=3. The 
     ALPO/BAA weight=2.


2021-Apr-19 UT 06:33-08:15 Ill=40% Torricelli_B observed by Foley_PW on 1983-2-19

     On 1983 Feb 19 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" 
     reflector) noticed a deep steel blue colour inside Toricelli B with a 
     lighter colour about 10-15 miles outside. Foley came to the conclusion 
     that this was too visible for its size. Cameron 2006 Catalog extension 
     ID=206 and weight=3. ALPO/BAA weight=2.


2021-Apr-19 UT 08:12-09:43 Ill=40% Halley observed by Raden_DJ on 1979-7-1

     On 1979 Jul 01 at 22:00?UT D.J. Raden (Fort Meade, FL, USA, using a 
     10" reflector) detected a flare near to Halley (5E, 9S) visually with 
     the eye and it lasted about 3-4 min - a sketch was made. However it was 
     also found on one photographic slide taken with an exposure of 35 
     seconds. The observer comments that visually the flare was not as 
     bright as it appeared in the photograph. In an area near Halley. The 
     Cameron 2006 catalog extension ID=57 and weight=5. The ALPO/BAA 
     weight=4.


2021-Apr-19 UT 09:03-09:43 Ill=41% Maskelyne observed by Persson on 1969-11-16

     Maskelyne 1969 Nov 16 UTC 16:28-17:10 Observed by Persson (Hvidore, 
     Denmark, 3" refractor) "Brightening & obscur. (Apollo 12 watch)." NASA 
     catalog weight=2 (low). NASA catalog ID #1210.


2021-Apr-19 UT 09:21-09:43 Ill=41% Aristarchus observed by D_All_Ara on 1969-11-16

     On 1969 Nov 16 at UT 16:43-19:22 Dall'Ara (Switzerland, 4"? reflector), 
     Stucchi (Switzerland, 12" reflector) observed in Aristarchus 
     intermittent pulsations - Cameron speculates atmopsheric and also 
     mentions the Apollo 12 watch. The Cameron 1978 catalog ID=1211 and 
     weight=3. The ALPO/BAA weight=2.


2021-Apr-19 UT 09:23-09:43 Ill=41% Unknown observed by Paolo_F on 1997-4-14

     On 1997 Apr 14 at UT 20:00-22:00 F. Paolo (Legnano, Italy) 
     photographed a lunar flare on the lunar limb.


2021-Apr-19 UT 09:36-09:43 Ill=41% Alphonsus observed by McLaria on 1965-5-8

     Alphonsus 1965 May 08 UTC 05:47-05:59 Observed by McLaria 
     (Huntsville, Alabama, USA, 16" reflector, S=9) "Light flashes 
     on c.p. color detected by Trident M.B." NASA catalog weight=5. 
     NASA catalog ID #875. ALPO/BAA weight=5.


2021-Apr-19 UT 06:22-09:45 Ill=41% Earthshine: (radio) Apr Piscids ZHR=low

2021-Apr-20 UT 05:27-05:53 Ill=49% Archimedes observed by Hill_EG on 1966-3-29 *

     Archimedes 1966 Mar 29 UT 21:00 Observed by Hill (England, 24" 
     reflector, x250, S=E) "Brightening of E-W bands across floor. 
     (Obscuration accord. to Moore)" NASA catalog ID #923. NASA 
     catalog weight=3. ALPO/BAA weight=1.


2021-Apr-20 UT 05:27-06:29 Ill=49% Censorinus observed by Cook_MC on 1987-11-28

     On 1987 Nov 28 M. Cook (Frimley, UK) found Censorinus varied in 
     brightness as measured using CED devices. P. Foley decided that the 
     north was was much brighter than Proclus (beyond the limits of the 
     scale). However both Moore and Mason agreed that the north wall of 
     Proclus was very bright but shimmering around in the bad seeing. They 
     did not see any bright spots either. A.C. Cook (20:18-20:44UT) 
     confirmed that the north wall of Proclus was very bright. Towards the 
     end of the observing period the north wall had faded from this maximum 
     brightness - Cameron suspects that this might have been as a result of 
     an eyepiece misting up. The TLP was also observed by Foley (Maidstone, 
     Kent, UK) and he reported: "Bright spot on north wall, Moon blink 
     reaction". A BAA Lunar Section report with extracts from the 2006 
     Cameron catalog. Cameron 2006 catalog ID=315 and weight=4 (or 5?). 
     ALPO/BAA weight=2. Apart from Louderback, all observers were based in 
     the UK and had a vatiety of telescopes and observings conditions.


2021-Apr-20 UT 05:27-05:59 Ill=49% Proclus observed by Mobberley_M on 1987-11-28

     On 1987 Nov 28 UT at 20:14 (possibly earlier)-20:44 M.Mobberley saw the 
     northern rim of Proclus very bright for first quarter. There were 
     streaks half way up the wall and these seemed to vary in brightness and 
     length in seconds. Seeing was at first suspected but became doubtful 
     over this being a cause. There was also another bright streak that 
     changed brightness over 5 minute intervals (Cameron says that this is 
     not atmospheric) Apparently video was taken and confirms the effects. A 
     sketch was also made. M. Cook detected a blink with coloured filters 
     i.e. being brighter in red light (Also apparently confirmed by 
     Louderback). Estimated the north west wall was x3 brighter than 
     Censorinus. Censorinus itself varied in brightness as measured using 
     CED devices. P. Foley decided that the north was was much brighter than 
     Proclus (beyond the limits of the scale. However both Moore and Mason 
     agreed that the north wall of Proclus was very bright but shimmering 
     around in the bad seeing. They did not see any bright spots either. 
     A.C. Cook (20:18-20:44UT) confirmed that the north wall of Proclus was 
     very bright. Towards the end of the observing period the north wall had 
     faded from this maximum brightness - Cameron suspects that this might 
     have been as a result of an eyepiece misting up. The TLP was also 
     observed by Foley (Maidstone, Kent, UK) and he reported: "Bright spot 
     on north wall, Moon blink reaction". A BAA Lunar Section report with 
     extracts from the 2006 Cameron catalog. Cameron 2006 catalog ID=315 and 
     weight=4 (or 5?). ALPO/BAA weight=3. Apart from Louderback, all 
     observers were based in the UK and had a vatiety of telescopes and 
     observings conditions.


2021-Apr-20 UT 05:46-07:10 Ill=50% Mons_Pico observed by Quinn on 1986-11-9

     On 1986 Nov 09 at UT 23:00 Quinn (Glebview, IL, USA, 8" reflector, x49-
     x305) found īn the vicinity of an unnamed ridge points toward Pico- two 
     bright points about 5 magnitudes brighter than any other part of the 
     Moon. The Alpine valley points directly between these two points. "Came 
     from apparently featureless area. Both points about the same size, but 
     different shapes ~ width of alpine valley" The observer used 4 
     different eyepieces and the points were brightest in the lowest power. 
     Other specks of light could be seen in the darkness wound the N point. 
     The Cameron 2006 catalog ID=289 and the weight=3. The ALPO/BAA 
     weight=2.


2021-Apr-20 UT 06:04-07:56 Ill=50% Archimedes observed by Burnerd on 1922-5-4

     In 1922 May 04 at UT Burnerd (England?) discovered three long mounds in 
     Archimedes crater (rays?). The Cameron 1978 catalog ID=385 and weight=
     0. The ALPO/BAA weight=1.


2021-Apr-20 UT 06:04-07:08 Ill=50% Alphonsus observed by Moore_P on 1967-2-17

     Alphonsus 1967 Feb 17 UT 17:47-18:12 Observed by Moore and 
     Moseley (Armagh, Northern Ireland, 10" refractor, x300) "Eng. 
     moonblink suspected just inside SW floor on the elevation NW of 
     famous dark patch. Feb 18 was cloudy, then on Feb 19, after some 
     neg. results with blink, suddenly a bright glow in same place." 
     NASA catalog weight=4. NASA catalog ID #1014. ALPO/BAA weight=4.


2021-Apr-20 UT 06:06-07:46 Ill=50% Hipparchus_L observed by Coates_J on 1979-5-4

     On 1979 May 04 at 21:30-22:00UT Coates detected a star-like point 
     inside Hipparchus L crater using averted vision. Cameron in her 2006 
     catalog extension comments that Hipparchus L is a highlands impact 
     crater with a rille on the western ejecta blanket. The crater is the 
     smallest one in a chain that are sequenced to be half the size of the 
     previous crater in the chain. Apparently the largest crater in the 
     chain is Hind with a largely landslide covered floor - although on the 
     south is a dome? with a summit crater. Cameron's 2006 catalog extension 
     gives this TLP an ID of 51 and a weight=2. The ALPO/BAA weight=2.  


2021-Apr-20 UT 06:17-10:12 Ill=50% Alphonsus observed by Jasmin_G on 2003-4-10 *

     On 2003 Apr 10 at 00:40UT a GLR observer G. Jasmin (Quebec, Canada, 
     using a 10" F-10 Schmidt Cassegrain) took a photograph of Alphonsus 
     crater on Kodak 400ASA film with an exposure of 1/30th sec. There was a 
     light visible (diameter 10 km) inside Alphonsus and the effect was 
     present for 5 minutes. The observer commented that they have seen a 
     light in this crater many times before, but never as long as 5 minutes.
     This report was submitted to the GLR group in Italy. The ALPO/BAA 
     weight=2.


2021-Apr-20 UT 06:32-08:09 Ill=50% Torricelli_B observed by Foley_PW on 1983-2-20

     On 1983 Feb 20 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" 
     reflector) noticed a deep steel blue colour inside Toricelli B with a 
     lighter colour about 10-15 miles outside. Foley came to the conclusion 
     that this was too visible for its size. Cameron 2006 Catalog extension 
     ID=206 and weight=3. ALPO/BAA weight=2.


2021-Apr-20 UT 06:25-07:05 Ill=50% Earthshine: (radio) Apr Piscids ZHR=low

2021-Apr-20 UT 07:05-09:02 Ill=50% Montes_Teneriffe observed by Hart_R on 1854-12-27

     nr. Plato in Teneriffe Mountains 1854 Dec 27 UT 18:00-23:00 
     Observed by Hart & others (Glasgow, Scotland, 10" reflector) 
     "2 luminous fiery spots on bright side on either side of a 
     ridge, contrasting color. Seemed to be 2 active volcanoes. 
     Ridge was normal color. Spots were yellow or flame color. 
     Never seen before in 40 yrs. of observing." NASA catalog 
     weight=4. NASA catalog ID #129. ALPO/BAA weight=2.


2021-Apr-20 UT 07:34-09:31 Ill=50% Theaetetus observed by Moore_P on 1952-12-24

     Thaetetus 1952 Dec 24 UT 20:00? Observed by Moore (England?) 
     "Bright spot, hazy line of light" NASA catalog weight=4. NASA 
     catalog ID 556. ALPO/BAA weigh=2.


2021-Apr-20 UT 08:26-10:19 Ill=51% Chacornac observed by Khachatryan_S on 2009-8-28

     On 2009 Aug 28 at UTC 17:00:15-17:00:42 S. Khachatryan (Yerevan, 
     Armenia, 127mm Maksutov-Cassegrain, x171, seeing 9 (1=worst and 10-
     best), Transparency 5-6 on a scale of 1 to 6) observed in the Chacornac 
     area a series of fiery sparks (dot like with tiny rays), slightly 
     elongated with the multitudinal rays orientated towards the south west 
     direction. The colour was mostly red, with some yellow. The final flash 
     was the most clear. The TLP was tiny in area, but "was distinctly 
     bright against any other object on the Moon". The positional 
     uncertainty of the location of the spark effect was approximately +/-
     150 km, based upon an examination of an atlas afterwards. Just prior to 
     the spark effect, something dark, small and fuzzy (only just discrnable 
     to the eye, through the eyepiece) was seen to pass from the west across 
     the Moon in a slight curve, round the surface of the Moon to the east 
     (post observation estimate: seen for 3.5 sec and covered roughly 8% of 
     the lunar diameter in that time). The area of the dark object was 
     comparable in size to (or slightly less than?) craters such as 
     Autolycus F (diameter 3km) or le Monnier E (diameter 4km) i.e. on the 
     limits of vision of the scope used. The location of the flash was not 
     exactly at the same location as the dark object passed across, but gave 
     the impression of starting from it? A back of the envelope calculation 
     of the lunar diameter covered in the time quoted gives an approximate 
     speed (at the lunar distance) of 80km/s or on the very high end of 
     typical meteor streams that pass by. At closer distances, and 
     recalculated velocities, it is unlikely to be a satellite in low Earth 
     orbit (20m/sec at 100km distance), but could perhaps be a bird or 
     insect at a few km range? So was this dark object something in our
     atmosphere by chance passing across the field of view close to the time 
     of the TLP flare or was at the lunar distance and related to the TLP? 
     Incidentally, no attempt was made during this observation to move the 
     scope to check that the TLP remained stationary against the Moon. The 
     ALPO/BAA weight=2.


2021-Apr-20 UT 08:34-09:07 Ill=51% Hyginus_N observed by Crain on 1877-11-13

     Hyginus Nova 1877 Nov 13 UT 20:00? Observed by Crain, Klein, Eng. 
     officer (France?, Cologne (Germany), Enland?, 6" refractor?, S=E) 
     "Standing out with such prominence, seen at a glance. No trace of it on 
     14th, in excell seeing. (indep. confirm.?)"NASA catalog weight=5 (very 
     high). NASA catalog ID #198. ALPO/BAA weight=3.


2021-Apr-20 UT 08:38-09:57 Ill=51% Menelaus observed by Azevado on 1969-11-17

     Menelaus 1969 Nov 17 UT 16:00-19:00 Observed by Rubens de 
     Azevedo,A. Monghilhot, E. Leal e Jose Fernandes (Joao Pessoa, 
     Paraiba, Brazil, 8" and 10" reflectors) "Entire crater of 
     Men. illum. by pale greenish light. (Azevedo)" NASA catalog 
     weight=5 NASA catalog ID #1211a. ALPO/BAA weight=4.


2021-Apr-20 UT 08:40-10:07 Ill=51% Plato observed by Lade on 1889-6-6

     On 1889 Jun 06 at 22:00 UT Lade of France (8" refractor) saw two 
     extremely bright spots (Plato B & D). Cameron 1978 catalog ID=262 and 
     weight=2. ALPO/BAA weight=1.


2021-Apr-20 UT 09:20-10:23 Ill=51% Unknown observed by Fauchier on 1886-5-11

     Fauchier of Marseilles, France, seeing=good - fair and the Moon at a 
     high altitude, saw two lights on the Moon brighter than any others 
     during similar circumstances. They had colour. These had not been seen 
     before and he ruled out cromatic aberation. Cameron 1978 catalog ID=249 
     and weight=3. ALPO/BAA weight=2.


2021-Apr-21 UT 05:29-06:37 Ill=60% Ross_D observed by Capen_CF on 1964-4-21

     Ross D 1964 Apr 21 UT 04:23-05:01 Observed by the Capens (CA, 
     USA, 16" and 6", seeing 3-5, transparency 5+) "Obscuration of 
     its rim" NASA catalog weight=4. NASA catalog ID #808. ALPO/BAA 
     weight=2.


2021-Apr-21 UT 05:29-06:19 Ill=60% Aristarchus observed by Madej_P on 1984-12-31

     Although the crater was on the night side, a small bright spot
     was seen. This was blue, almost UV, and equivalent to a star of
     magnitude 2. It flashed over intervals of about 30 seconds
     and changed in colour from UV to blue. The BAA Lunar Section
     TLP network was alerted. Mobberly and J.Cook did not see much
     although J. Cook may have seen something, but located else where?
     Cameron lists this as a confirmed? observation? The Cameron
     2006 TLP xtension catalog has this TLP with an ID No. of 258
     and a weight of 4. The ALPO/BAA weight is 2.


2021-Apr-21 UT 05:37-07:17 Ill=60% Plato observed by King_N on 1983-4-21

     On 1983 Apr 21 at UT 21:55-22:05 N. King (Winersh, Berkshire, 
     UK, using a 150cm f/8 reflector, with seeing I and 
     transparency good, little spurious colour, just a little in 
     Plato). Although observing since 21:25UT the observer noticed  
     a just detectable faint green colour just after the dark shade 
     around the inner eastern crater rim. The effect faded and by 
     22:05UT had completely gone. This report is not in the Cameron 
     2006 catalog. It is a BAA report. The ALPO/BAA weight=2.


2021-Apr-21 UT 06:25-07:46 Ill=60% Alphonsus observed by Brook_C on 2004-2-29

     Alphonsus 2004 Feb 29 UT 19:00-19:15 Observed by Brook (Plymouth, 
     England, 60mm OG x120) "Checked central peak of Alphonsus using 60mm OG 
     x120 + right angle prism. Moon at very high elevation, seeing excellent 
     once clouds had dispersed, transparency also excellent. Time of 
     observation 19-00 hrs UT to 19-15 hrs UT. Noticed fluctuation of 
     brightness of A's central peak compared with the peak of Arzachel. 
     Alphonsus' peak generally brighter." BAA Lunar Section report. ALPO/BAA 
     weight=2.


2021-Apr-21 UT 06:31-08:02 Ill=60% Torricelli_B observed by Foley_PW on 1983-2-21

     On 1983 Feb 21 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" 
     reflector) noticed a deep steel blue colour inside Toricelli B with a 
     lighter colour about 10-15 miles outside. Foley came to the conclusion 
     that this was too visible for its size. Cameron 2006 Catalog extension 
     ID=206 and weight=3. ALPO/BAA weight=2.


2021-Apr-21 UT 06:59-08:54 Ill=60% Tycho observed by Albert_J on 2010-8-19

     On 2010 Aug 19 at UT 00:50-01:02 J.Albert (Lakeworth, FL, USA, 
     C11, Transparency 3, Seeing 7-8, 86F and very humid. Oberver 
     checking out repeat illumination condition appearence for Tycho 
     concerning LTP #468 in the 1978 Cameron catalog. Did not see the 
     effect from the original TLP report, but did see, immediately at 
     looking at Tycho a very faint hint of redness in a pencil thin 
     arc (< 1/4 circumference of the rim) confined to the top of the 
     rim of the well-lit north east wall. Coloured arc similar in 
     thickness to Rupes Recta, but not as sharply defined. The outer 
     (E) edge was perhaps sharper than the inner edge. The redness 
     was more on the inside of the top of the rim. The outside of the 
     rim was bright white. This effect was seen in three different 
     eyepieces, at 311x, 224x and 400x. Checked for the effect on 
     other craters nearby but could not see this effect anywhere 
     else. The colour had dissapeared by 01:02UT. The fade took about 
     1-2 minutes. Observation of Tycho continued until 01:06UT, but 
     all seemed normal. Quick checks were made again on Tycho 
     periodically until 02:50UT but the colour was not seen again. 
     ALPO/BAA weight=3.


2021-Apr-21 UT 07:13-08:45 Ill=60% Messier observed by Robinson_JH on 1979-7-3

     On 1979 Jul 03 at UT 20:55-21:20 J-H. Robinson (Teighmouth, Devon, UK, 
     10" reflector, seeing II) observed that Messier was brighter than 
     Messier A. No colour was observed. The Cameron 2006 catalog ID is 58 
     and the weight=3. ALPO/BAA weight=1.


2021-Apr-21 UT 07:39-08:20 Ill=61% Linne observed by Tacchini on 1868-7-28

     Linne 1868 Jul 28 UT 20:00? Observed by Tacchini (Palermo, Italy) 
     "Shadow not so marked-had a light penumbra, indicated a feeble cavity. 
     Other craters had a black shad. On 29th appeared completely white. 
     Crater normal on 26th. (letter to Madler Sep. 16, 1868)." NASA 
     catalog weight=4 (high). NASA catalog ID #159.


2021-Apr-21 UT 07:53-09:40 Ill=61% Ross_D observed by Harris on 1964-2-22

     On 1964 Feb 22 at UT 05:00 Harris (Whittier, CA, 19" reflector, x100) 
     observed the appearance of a ring to the south east of Ross D. Cameron 
     says that 7 persons have seen this over a 2.5 year period. The Cameron 
     1978 catalog ID=801 and weight=1. The ALPO/BAA weight=1.


2021-Apr-21 UT 08:45-09:44 Ill=61% Gassendi observed by Moore_P on 1967-2-18

     Gassendi 1967 Feb 18 UT 20:30-20:40 Observed by Moore, Moseley 
     (Armagh, Northern Ireland, 10" refractor, x300) "Red color in 
     crater (in dark)". NASA catalog weight=4. NASA catalog ID #1015. 
     ALPO/BAA weight=4.


2021-Apr-21 UT 09:19-10:53 Ill=61% Copernicus observed by Firsoff on 1955-7-28

     Copernicus 1955 Jul 28 UT 20:20 Observed by Firsoff (Somerset, England, 
     6.5" reflector x200) "Great brilliance of the terraces in E(IAU?) wall 
     system(?) gets specular refl. (he gave 0820UT, but must have meant 
     2020" NASA catalog weight=4 (high). NASA catalog No. #600.


2021-Apr-21 UT 09:46-09:59 Ill=61% Aristarchus observed by Robinson_JH on 1980-5-23

     On 1980 May 23 at UT21:14-21:55 J.H. Robinson (Teighmouth, Devon, UK, 
     12" reflector, seeing II-III) could see Aristarchus in blue and clear 
     filters, but not in red light. Robinson saw some variability in this 
     effect with time. Cameron 2006 catalog ID=96 and weight=3. ALPO/BAA 
     weight=2.


2021-Apr-21 UT 09:46-09:59 Ill=61% Campanus observed by Petek on 1980-5-23

     On 1980 May 23 at UT 21:14-21:18 Marco Petek (Porto Alegre, 
     Brazil) saw a shadow extending south east from Campanus 
     opposite to the Sun - however Foley thinks this is normal. 
     Cameron 2006 catalog ID=96 and weight=0 or 1. 
     ALPO/BAA weight=1.


2021-Apr-21 UT 09:46-09:59 Ill=61% Copernicus observed by Blair_G on 1980-5-23

     On 1980 May 23 at UT21:14-22:18 G. Blair (Bridge of Weir, 
     Scotland, UK, 216mm reflector, seeing II-IV) found a red tinge 
     along the western wall of Coperncius, perhaps 32km in length. 
     This was invisible in a blue-green Wratten 44a filter, but was 
     unmistakble in a red Wratten 25 filter. Could have been 
     spurious colour - but no other regiosn were affected. The 
     ALPO/BAA weight=2. 


2021-Apr-21 UT 09:57-10:53 Ill=61% Aristarchus observed by Spencer_S on 1976-6-6

     Aristarchus 1976 Jun 06 UT 21:30-21:40 S.Spencer and R. Hunt 
     (60mm refractor, x150 and x60) both observed red on the SW 
     corner of Aristarchus. ALPO/BAA weight=1.


2021-Apr-21 UT 10:01-10:53 Ill=61% Atlas observed by Andre on 1966-12-21

     Atlas 1966 Dec 21 UT 17:10 Observed by Andre (Belgium, 3" refractor) 
     "Bright spot on SE part of floor, not seen in photo on 12/18/66" NASA 
     catalog weight=2 (low). NASA catalog ID #1003.


2021-Apr-21 UT 10:02-13:08 Ill=61% Mons_La_Hire observed by Geisel_M on 1972-11-15 *

     Mons la Hire 1972 Nov 15 UT 09:45-10:18 M.Geisel (Brisbane, 
     Australia, 12.5" f/8 reflector, x90) discovered the TLP, P. 
     Anderson (9.5" reflector) independently confirmed that the TLP
     had an effect in his Moon Blink device - but the effect 
     (suspected that the blink was caused by the extreme nrightness 
     of the mountain?) was weak and thought it not worth further 
     investigation. Photographs taken by Anderson. Geisel believes 
     the effect to be real and states that the area remained sharp 
     and clear throughout. ALPO/BAA weight=2.


2021-Apr-21 UT 10:16-10:53 Ill=62% Copernicus observed by Horner_E on 2012-9-24

     2012 Sep 24 UT 22:00-23:00 Copernicus. E. Horner (Salisbury, 
     UK, 15cm reflector) observed a prominent red arc where the 
     sunlit part of the interior wall met the shadow. Sometimes the 
     arc was 1/4 the way around the interior, and sometimes half of 
     the way around. Telescope moved, but the red arc stayed where 
     it was. Eyepieces change, but the effect remained. Other parts 
     of the Moon checked, but no red seen. There were however 
     splashes of green e.g. Longomontanus on the terminator, 
     elsewhere further inland from the termionator, and little 
     splashes of green on Mare Frigoras - but lasting a brief time. 
     The red colour was as strong as a red LED and the green similar 
     to that of the northern lights. The observer's husband was asked 
     to independetly check Copernicus and remarked that he could see 
     a little bit of green at the top and some red near the bottom, 
     along the line of the internal shadow. Although there were 
     checks for red elsewhere on the Moon and none were seen, the 
     Moon was starting to get low and it is typical of spurious 
     colour in a few respects. Therefore the ALPO/BAA weight=1 for 
     safety.


2021-Apr-21 UT 10:17-10:53 Ill=62% Copernicus observed by Darling_D on 1990-8-30

     On 1990 Aug 30 at UT02:11-02:36 D. Darling (Sun Praire, WI, USA, 3" 
     refractor, x90, seeing conditions: "at,. boiling") noted a coloured 
     area on the west wall of Copernicus that was unusual in appearance - 
     however other craters along the terminator had a similar effect. There 
     was also a "dazzling bright spot on the E. rim and he witnessed 6 
     flashes from the lighted part of Copernicus over a very short time 
     interval. Cameron comments that the colour may well have been dur to 
     chromatic aberation because a refractor was used. The Cameron 2006 
     catalog ID=408 and the weight=0. The ALPO/BAA weight=1.


2021-Apr-21 UT 10:17-10:53 Ill=62% Proclus observed by Darling_D on 1990-8-30

     On 1990 Aug 30 at UT 02:11-02:36 D. Darling (Sun Praire, WI, USA, 3" 
     reflector, x90, atmosphereic conditions: boiling) found "N rim of Proc. 
     bright interior uniform gray". The Cameron 2006 catalog report is 
     slight unclear as the description for thnis 1990 Aug 30 TLP also 
     includes Copernicus and Censorinus in the list of TLP craters. So one 
     description which might refere to Copernicus, could possibly have been 
     meant for Proclus, namely: "Dazling bright spot on E rim. Rotated 
     eyepiece but no change. N rim of Proc.......". The Cameron 2006 catalog 
     ID=408 and weight=0. The ALPO/BAA weight=1.


2021-Apr-21 UT 10:51-10:53 Ill=62% Tycho observed by Blair_G on 1980-5-23

     On 1980 May 25 at UT 22:18 G. Blair (Bridge of Weir, Scotland, 216mm 
     reflector, seeing II-IV) suspected a short sharp flash, white in colour 
     north of Tycho's north wall. Nothing more seen. ALPO/BAA weight=1. 


2021-Apr-22 UT 05:32-06:12 Ill=70% Proclus observed by Cook_MC on 1982-2-3

     M.C. Cook (Frimley, UK) got an abnormally low brightness reading for
     Proclus, despite nearby Censorinus being normal. Crater Extinction
     Device used. The Cameron 2006 Extension catalog ID was 163 and the 
     weight was 3. The ALPO/BAA weight was 2 too.


2021-Apr-22 UT 05:47-07:28 Ill=70% Plato observed by Porter on 1976-9-4

     Plato 1976 Sep 04 UT 02:35-03:35 Observed by Porter 
     (Sarragansett?, Rhode Island, USA, 6" reflector x100, S=5, 
     T=?) "At 0235h albedo of floor was est. at 3. At 0325h the pt. 
     was albedo =1, 2 whole steps darker than earlier & noticeable 
     to the obs. 10-15 min later it returned to normal. (the few 
     meas. of albedo for this age were 1.5-2 which suggests that 
     the meas. of 3 was the anomalous one. Another pt. did 
     darken -- as reported). NASA catalog weight=3. NASA catalog ID 
     #1448. ALPO/BAA weight=1.


2021-Apr-22 UT 06:14-07:02 Ill=70% Proclus observed by Cameron_W on 1988-12-18

     On 1988 Dec 18 at UT20:25 W. Cameron (Sedona, AZ, USA - TV camera 
     telephoto) noticed on a live TV shot of the Moon (apparently channel 3 
     TV broadcast at 11:25PM local time), that Proclus was brighter than 
     Censorinus (or Dionysus) and was the brightest feature on the Moon. It 
     was photographed from San Juan in Puerto Rico. Cameron 2006 catalog ID=
     342 and weight=. ALPO/BAA weight=5. ALPO/BAA weight=1.


2021-Apr-22 UT 06:37-07:55 Ill=70% Ross_D observed by Cross on 1964-4-22

     Ross D vicinity 1964 Apr 22 UT 05:43-0637 Observed by Cross et 
     al. (Whittier, CA, USA, 19" reflector, x800-1200 & filters, S=7-
     8, T=1) "Gas cloud over it & its companion; everywhere else was 
     fine detail" NASA catalog weight=5. NASA catalog ID #809. 
     ALPO/BAA weight=3.


2021-Apr-22 UT 07:02-08:31 Ill=71% Daniell observed by Saxton on 1979-7-4

     Daniell 1979 Jul 04 UT 20:40-21:19 Observed by Saxton (UK?, 216mm 
     refractor?, seeing III, transparency: Good) "noticed that the east 
     end of Daniell was bright and fuzzy and had somewhat poorly defined
     edge to the bright part. A sketch was made, and possibly shows
     the same as in past reports" BAA Lunar Section Report. Cameron
     2006 extension catalog ID=59 and weight=3. Observer located in
     Leeds, England and used a 9" reflector x250. Seeing=III and
     transparency=good. ALPO/BAA weight=2.
     
     


2021-Apr-22 UT 07:54-09:49 Ill=71% Plato observed by Davies_H on 1988-10-20

     H. Davies (Llamandel, Swansea, UK, using a 3" refractor,
     detected a short duration reddish hue along the inner NE-NW? 
     rim (4-7 O'Clock location. Sketch supplied to Foley (BAA 
     coordinator). No similar effect seen elsewhere. A.C. Cook 
     (Frimley, UK) detected spurious colour on several craters, 
     including Plato that night. Cameron 2006 Catalog Extension ID=
     337 and weight=0. ALPO/BAA weight=1.


2021-Apr-22 UT 07:55-09:15 Ill=71% Bullialdus observed by Foley_PW on 1975-9-15

     Colour seen, mostly blueness on south rim and exterior of south
     rim at Bullialdus crater. Blueness seen too on Plato on inner SSW
     rim, but no colour reported on any other craters. Seeing III,
     12" reflector used x200 and x360.


2021-Apr-22 UT 07:55-09:15 Ill=71% Plato observed by Foley_PW on 1975-9-15

     Colour seen, mostly blueness on inner SSW rim. Blueness also seen
     on south rim and exterior of south rim at Bullialdus crater. No colour
     reported on any other craters. Seeing III, 12" reflector used x200 and 
     x360.


2021-Apr-22 UT 08:15-10:12 Ill=71% Mare_Crisium observed by Arsyukhin on 1981-6-12

     Arsyukhin and others (Moscow, USSR), with naked eye and binouculars 
     saw three dark spots suddenly appear on Mare Crisium and disappear 
     approximately 30 minutes later. Cameron 2006 catalog extension ID=145
     and catalog weight=4. ALPO/BAA weight=2.


2021-Apr-22 UT 08:15-10:12 Ill=71% Plato observed by Arsyukhin on 1981-6-12

     Arsyukhin and others (Moscow, USSR), with naked eye and binouculars 
     saw TLP activity in Plato that Cameron thinks confirms what UK
     observers saw later. Cameron 2006 catalog extension ID=145
     and catalog weight=4. ALPO/BAA weight=1.


2021-Apr-22 UT 08:44-09:37 Ill=71% Alphonsus observed by Moore_P on 1967-2-19

     Alphonsus 1967 Feb 19 UT 20:30-21:11 Observed by Moore, 
     Moseley (Armagh, Northern Ireland, 10" refractor, x360) "Blink 
     area between 1900 & 1940 with neg. results. Suddenly at 2030 
     there was a bright red glow, brightest Moseley had ever seen, 
     at Feb 17 suspectec place. Moore returned at 2037h in time to 
     see fading effect. Brief return at 2105-2111; neg. from 
     2120-2250h then clouds. Nothing on Feb 20. confirmation)." 
     NASA catalog weight=5. NASA catalog ID #1016. 
     ALPO/BAA weight=4.


2021-Apr-22 UT 08:47-10:41 Ill=71% Alphonsus observed by Jenning on 1966-4-1

     Alphonsus 1966 Apr 01 UT(?) 03:00-03:20 Observed by Jenning, 
     Harris (Coral Estates, CA, USA, 12" reflector) "Red patch from 
     c.p. to W. wall (no confirm. from Corralitos obs. moon blink 
     device & obs. at that time)" NASA catalog weight=3. NASA 
     catalog ID #924. ALPO/BAA weight=2.


2021-Apr-22 UT 08:48-09:03 Ill=71% Sinus_Iridum observed by Unknown_Observer on 1872-3-19

     In 1872 Mar 19 at UT 23:17 an unknown observer observed in Sinus 
     Iridum: "Covered with a light gray shadow thru which he saw dimly the 
     surface below - indicating obscuring matter over it. (Cameron says: 
     only w. 1/3 of bay would be in shadow as boundaries are 25-37W)". The 
     Cameron 1978 catalog ID=178 and the weight=3.


2021-Apr-22 UT 09:18-11:00 Ill=71% Agrippa observed by Capron on 1878-12-4

     Agrippa and vicinity 1878 Dec 04 UT 20:00? Observed by Capron (France?) 
     "Odd, misty look as if vapor were in or about them" NASA catalog 
     weight=3 (average). NASA catalog ID #209.


2021-Apr-22 UT 10:21-13:23 Ill=72% Copernicus observed by Johnstone_GH on 1954-11-6 *

     Observed by G.H. Johnstone of Albuquerque, NM, USA on 1954 Nov 05 UT 
     20:00 (according to Cameron), but 02:00-04:00 according to the
     original observation and at colongitudes 34.7 to 35.7 deg. 4" 
     reflector, x150 used. The obsewrver reported that the western part 
     (about 1/3rd of the interior) was pitch black with shadow. However 
     there was a zone about as wide, or perhaps only a fourth of the total 
     width that was distinctly a lighter bluish shade, almost like twilight. 
     The shadows of the peaks on the western edge of the rim were clearly 
     seen crossing this bluish shadowed area. Then this area ended sharply, 
     and the farside was bathed in light from the rising sun. The shadows of
     the peak were sharply defined across the twilight zone, and the edge of 
     the pitch black shadow was easily defined but not as sharp as the
     darker shadows crossing the the blue twilight zone. The observer 
     checked other craters but did not see this condition in any of them - 
     they all had the abrupt division between black and white that we would
     normally expect to see. Cameron 1978 catalog ID=579 and weight=2.
     Reference 1962 edition of ALPO's Journal: The Stolling Astronomer.
     ALPO/BAA weight=3.


2021-Apr-23 UT 05:35-06:50 Ill=80% Torricelli_B observed by Cook_MC on 1983-4-23

     A blue tinge was seen inside and outside the crater
     perimeter. The surrounding halo lost brightness that
     was observed on 1993 Jan 29. Observed on Apr 19, 20 and 28th.
     Cameron 2006 extension catalog ID=213 and weight=5.
     ALPO/BAA weight=3.


2021-Apr-23 UT 06:47-08:35 Ill=80% Torricelli_B observed by North_G on 1990-1-7

     On 1990 Jan 07 at UT 20:20-20:58 G.North (Herstmonceux, UK) thought 
     that he detected dullness in Torricelli B crater - Cameron comments 
     that this cannot be shadow). The Cameron 2006 catalog ID=386 and the 
     weight=3. ALPO\/BAA weight=2.


2021-Apr-23 UT 07:19-08:31 Ill=80% Proclus observed by Firsoff on 1954-9-8

     Brilliant blue color seen at first for seconds, later for min 
     2h later, in blue filter. Cameron 1978 catalog weight=4 (high).
     Cameron 1978 catalog ID 572.


2021-Apr-23 UT 07:39-08:54 Ill=80% Tycho observed by Taylor_DB on 1971-11-28

     Tycho 2971 Nov 28 UT 21:58-22:05 observed by D.B. Taylor (Dundee, 
     UK, darker area inside the crater (NE and SE floor) in a Moon 
     Blink device. However the observer does not report through which 
     filter ir was darker. ALPO/BAA weight=1.


2021-Apr-23 UT 08:09-09:46 Ill=81% Plato observed by Watkins_E on 1971-9-30

     Plato 1971 Oct 30 UT 19:35-20:55 E.Watkins (Braintree, UK, 4.5" 
     reflector, x45,x150, x225), thought he saw a faint patch at 
     19:35 and it still was visible at 19:40. At 19:50-19:55 he saw 
     what may have been the remainder. At 20:55 he noticed a shadow 
     in the area. ALPO/BAA weight=1.


2021-Apr-23 UT 09:50-10:31 Ill=81% Gassendi observed by Duckworth on 1969-11-20

     Gassendi 1969 Nov 20 UT 17:06-17:15 Observed by Duckworth 
     (Manchester, England, 8" refractor x250) Faint Pinkish 
     Obscuration on floor. Event in progress at 1706 - left telescope 
     at 1715 to report it, but TLP gone upon return. Gassendi was 
     normal from from 1734-1822h. NASA catalog weight=4. NASA catalog 
     ID #1223. ALPO/BAA weight=3.


2021-Apr-23 UT 10:45-11:26 Ill=81% Swift observed by Wilkins_HP on 1927-5-12

     Peice A (Swift=IAU name?) 1927 May 12 UT 22:03 Observed by Wilkins 
     (England, 15" reflector) "Complete obscuration of crater. Saw no trace 
     of it. It was vis. May 11 & faint on May 13. 3x in 1948 Moore saw whole 
     area misty gray & devoid of detail, whereas surroundings were sharp & 
     clear. Birt also found it invis. at times in late 1800's" NASA catalog 
     weight=4. NASA catalog ID #394. ALPO/BAA weight=3.


2021-Apr-23 UT 10:54-11:26 Ill=81% Plato observed by Fauth on 1906-3-6

     Plato 1906 Mar 06 UT 22:00? Observed by Fauth (Germany? 6" refractor) 
     "Color (brightness?) greatly enhanced as it was to be on the next 
     nite" NASA catalog weight=3 (average). NASA catalog ID #324.


2021-Apr-23 UT 11:09-11:26 Ill=82% Hyginus_N observed by Wilkins_HP on 1944-4-4

     Hyginus N 1944 Apr 04 UT 20:00? Observed by Wilkins (Kent, England, 
     15" reflector) "Darker than usual. S. edge of great crater valley was 
     bordered by a narrow dark band for 13km along its length" NASA catalog 
     weight=4 (high). NASA catalog ID #490.


2021-Apr-23 UT 11:12-11:26 Ill=82% Aristarchus observed by Weier_D on 1990-1-8

     On 1990 Jan 08 at UT00:55 D. Weier (Sun Praire, WI, USA, 12.5" 
     reflector, x159) observed an "anomalous black bar across Aris. Nearly 
     digonal to terminator." The nearby crater Prinz had curious shadow 
     patterns, perhaps related to the rising sun projecting shadows from the 
     eastern rim and "reflected down"? "At 0224 W wall had a break in it & a 
     diffuse glow where it should not be. Manske thinks it was Earthshine 
     effect. At 0305 Weier saw Manske's bar - with diffused light and 
     flicker like an aurora - like a gas with electric charge. At 0325 saw a 
     strange glow in Aris. but may be due to atm. though thought it to be a 
     LTP. Darling had never seen such effects before (flickering implies a 
     medium in it)." The Cameron 2006 catalog ID=387 and the weight=3. The 
     ALPO/BAA weight=3.


2021-Apr-24 UT 05:37-06:46 Ill=88% Gassendi observed by Haas_W on 1939-8-27

     Gassendi 1939 Aug 27 UT 02:00 Observed by Haas? (NM? USA, 12" 
     reflector?) "NE part of c.p. was I=6.4, compared with I=9.4 on 9/28/39 
     (see #462) under similar cond.@ NASA catalog weight=4 (high). NASA 
     catalog ID# 458.


2021-Apr-24 UT 05:37-06:56 Ill=88% Aristarchus observed by Budine on 1964-2-25

     Cobra Head, Aristarchus 1964 Feb 25 UT 02:37-02:38, 02:39-02:42 
     Observed by Budine (Binghamton, New York, USA, 4" refractor, x250, S=6, 
     T=4) "Red flashes" NASA catalog weight=3 (average). NASA catalog ID #
     802.


2021-Apr-24 UT 05:37-06:44 Ill=88% Proclus observed by Farrant_M on 1972-12-17

     Proclus 1972 Dec 17 UTC 18:30 Observed by Farrant (Cambridge, England, 
     8.5" reflector) "Crater appeared very bright (Apollo 17 Watch)." NASA 
     catalog weight=2 (low). NASA catalog ID #1359.


2021-Apr-24 UT 05:37-06:03 Ill=88% Aristarchus observed by Baumeister on 1973-8-10

     Aristarchus 1973 Aug 10 UTC 20:14 observed by Baumeister 
     (48.63N, 9.25E, 110mm reflector, T=2, S=2) "Orange to red 
     colours at the crater floor disappeared until 21:04" - 
     Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), 
     p53-61. ALPO/BAA weight=2.


2021-Apr-24 UT 05:37-06:39 Ill=88% Plato observed by Robinson_JH on 1973-8-10

     Plato 1973 Aug 10 UT 22:45 observed by Robinson (Devon, UK). 
     Observer noticed that the lighter areas on the floor were more 
     distinct in red than in the blue filter. ALPO/BAA weight=1.


2021-Apr-24 UT 05:37-06:53 Ill=88% Proclus observed by Bartlett on 1976-9-6

     Proclus 1976 Sep 06 UT 02:00 Observed by Bartlett (Baltimore, MD, USA, 
     4.5" reflector 45-300x, S=3, T=5) "Nothing vis. on floor of 2deg 
     brightness. Usually floor ray & Proc. A are vis. at this col. & c.p. is 
     5 deg bright. (must have been 2 deg tonite)." NASA catalog weight=4. 
     NASA catalog ID #1450.


2021-Apr-24 UT 05:37-06:50 Ill=88% Torricelli_B observed by Cook_MC on 1983-4-24

     All observers saw a blue tinge seen inside and outside the 
     crater. Marshall observed a bright spot in the middle of 
     the crater floor and thought perhaps that it was a central
     peak. No central peak can be found on Lunar Orbiter images.
     Cameron 2006 Catalog extension ID=214 and weight=5. ALPO/BAA
     weight=4.


2021-Apr-24 UT 05:37-07:26 Ill=88% Encke_B observed by Blanco_J on 1990-9-1

     Blanco, J. Vidal, of Gijon, Spain (3" refractor x72)
     noticed an unfamiliar very bright center near to Encke. 
     Cameron suspects that this was Encke B crater
     on the basis that it is a prominent small crater
     near to Encke. Cameron 2006 catalog extension ID=410
     and weight=2. ALPO/BAA weight=1.


2021-Apr-24 UT 06:36-10:18 Ill=88% Daniell observed by Crick on 1979-7-6 *

     Daniell 1979 Jul 06 UT 21:15-22:30 Crick (Belgium, 6" 
     reflector, Seeing=II and transparency=good.) noticed 
     obscuration on a bright spot on the south east wall. This spot 
     was quite prominent through a red Wratten 25 filter. The floor 
     was very dark. Other craters were checked and were normal. A 
     sketch was supplied and the position was the same as in other 
     earlier reports. Cameron 2006 catalog extension ID=60 and 
     weight=3. ALPO/BAA weight=3. 


2021-Apr-24 UT 07:59-09:38 Ill=89% Plato observed by Cook_MC on 1987-2-10

     Plato 1987 Feb 10 UT 21:05-22:10. M. Cook (Frimley, UK), "NE 
     ray distinct & also floor E of it, not distinct as on Dec 13 & 
     Jan 11, while March 10, 11 & 12 seen by Price, North, Peters, 
     Foley & M Cook, where rim was clear and sharp." - quote from 
     the 2006 Cameron Catalog extension - TLP ID=297 and weight=5. 
     Cameron gives the observers confirming this TLP as: M. Cook, 
     G. North and Davies. ALPO/BAA weight=2.


2021-Apr-24 UT 08:11-09:41 Ill=89% Herodotus observed by Bartlett on 1949-11-3

     In 1949 Nov 03 UT 01:06 J.Bartlett (3.5" refractor, x100) noted that 
     the floor of Herodotus was very dark, the east wall was very bright, 
     and the floor contained a central bright peak. The BAA/ALPO weight=3.


2021-Apr-24 UT 08:39-10:17 Ill=89% Kepler observed by Lugo on 1954-11-7

     Kepler 1954 Nov 07 UT 23:20 Observed by F.A. Lugo (Caracus, 
     Venezuela, 3.5" scope x125) Bright red star=like point just 
     outside E.wall - visible for an hour. NASA catalog weight=3. 
     NASA catalog ID #580. ALPO/BAA weight=3.


2021-Apr-24 UT 08:48-10:03 Ill=89% Aristillus observed by Berger on 1972-12-17

     Aristillus 1972 Dec 17 UTC 21:50-22:20 observed by Berger (51.5N, 9E, 
     60mm refractor, T=2, S=3) "Diffuse bright cloud in the NE corner of the 
     crater" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-
     61.


2021-Apr-24 UT 09:29-10:42 Ill=89% Herodotus observed by Beaumont_S on 1993-9-28

     On 1993 Sep 28 at UT 04:30-06:10 S.Beaumont (Cambridge, UK)observed 
     that the north east edge of Herodotus appeared as a "highland area 
     spilling over into" the Cobra's Head border or "overlook". The shadow 
     on the elevation was contiguous with a similar shadow over the Cobra's 
     Head "like a darkening of the terrain. Shadow appears softer diffused 
     without sharp bounds of most Lunar shadows. sketch. S. edge of crater 
     started to appear at 0615". The Cameron 1978 catalog ID=468 and the 
     weight=2. The ALPO/BAA weight=1 as the date or UT are wrong.


2021-Apr-24 UT 10:45-13:27 Ill=90% Plato observed by Taylor on 1972-10-19 *

     Plato 1972 Oct 19 UT 20:10 Observed by Taylor, Phillips, Ford, Kennedy 
     (Dundee, Scot. 10" refractor) "Taylor noted a slight blink on NW wall. 
     Ford said it was neg. Phillips was not sure. Taylor returned to 
     telescope & no blink. Kennedy reported neg." NASA catalog weight=1 
     (very low). NASA catalog ID #1347.


2021-Apr-24 UT 10:46-11:28 Ill=90% Plato observed by Fauth on 1906-3-7

     Plato 1906 Mar 07 UT 22:00? Observed by Fauth (Germany? 6" refractor) 
     "Color (brightness?) greatly enhanced as on the previous nite" NASA 
     catalog weight=3 (average). NASA catalog ID #324.


2021-Apr-24 UT 11:15-13:38 Ill=90% Tycho observed by Moore_P on 1980-7-24 *

     On 1980 Jul 24 at UT22:10-22:55 P. Moore (Selsey, UK, 15" reflector, 
     x360 and x400) found an area just south east of the central peak (and 
     upto the wall) to be quite dark in blue light, but normal brightness in 
     red light or in white light. All other features were normal colour-
     wise. At 22:55UT Tycho was normal again. Cameron 2006 catalog ID=103 
     and weight=4. ALPO/BAA weight=3.


2021-Apr-24 UT 12:02-13:38 Ill=90% Vallis_Schroteri observed by Bestwick on 1955-9-28 *

     Cobra Head 1955 Sep 28 UTC 23:00 Observed by Bestwick (England? 6?" 
     reflector x240) "Diffused brown patch of smoke or vapor, almost 
     obscured -- appeared over plain for a short distance."NASA catalog 
     weight=3. NASA catalog ID #612.


2021-Apr-25 UT 05:40-06:43 Ill=95% Montes_Haemus observed by Cooke_S on 1821-1-16

     On 1821 Jan 16 at UT 21:00 S. Cooke (Stonehouse, UK) An 
     effusion of  smoke effect, which lasted about a minute, seen. 
     It appeared like the fluttering of a bird and passed over the 
     Moon before it evaporated, and must have been foreshortened, 
     as it seemed in effect to have passed over the whole disc, 
     starting from west of Menelaus, and near Plinius. ALPO/BAA 
     weight=1.


2021-Apr-25 UT 05:40-06:09 Ill=95% Aristarchus observed by Cross on 1967-11-15

     Aristarchus-Cobra Head, 1967 Nov 15 UT 05:40-06:00 Observed by Cross, 
     Tombaugh (Las Cruces, NM, 12" reflector x800) and Harris (Tucson, AZ), 
     and Dunlap (Organ Pass, NM, 24" reflector with Moonblink). "Obs. 
     reddish color N. & E. of Aris. & more intense color nr. E.(IAU?) rim of 
     Cobra Head. Red color nr.C.H. confirmed by Tombaugh. Obtained 10 photos 
     between 0543-0549h in 3 spectral bands (blue, yellow, red, & integ. 
     light). No change dur. obs. per. but spot got smaller at moments of 
     good seeing. Isodensitometry of photos. At Corralitos 0152-0155 on 24-
     in image intensifier & filter sys. photoos at 0320-0330h. Harris at 
     Tucson got spectra. Neither of latter 2 show anything unusual. Its 
     edges were nebulous even at best seeing. Size @ that of Cobra's Head." 
     NASA catalog weight=5 (very good). NASA catalog ID #1053.


2021-Apr-25 UT 05:40-06:35 Ill=95% Plato observed by Foley_PW on 1978-8-16

     Peter Foley (Kent, UK, 8" reflector, seeing=II) noticed that
     the floor beneath the north wall, and the area over the north
     wall were indistinct (almost out of focus). Despite looking
     elsewhere in the crater and surrounds, no other blurring
     (obscuration of detail) could be seen, indeed everywhere else
     was sharp and detailed. Foley tried several eyepieces but this
     made no difference. He used a crater extinction device but
     found no variations in brightness. There was a slight
     darkening when he used a red filter in the Moon Blink device.
     The obscuration effect weakened between UT20:56 and 21:10,
     was difficult to see at 21:13 and had finished by 00:15.
     Patrick Moore (12" reflector, Dublin, Ireland) saw nothing 
     unusual when he started observing at UT 22:00. Cameron says 
     "Photos marked at location of phenomenon". Cameron 2006 
     extension catalog ID=37 and weight=5. ALPO/BAA weight=3.


2021-Apr-25 UT 06:03-07:26 Ill=95% Aristarchus observed by Louderback_D on 1985-12-25

     Louderback observed that the south west wall was a creamy deep yellow.
     There was also strong fluorescent blue on the west wall of the Cobra
     Head - Schroter's Valley area and this was similar to the violet glare
     seen on Aristarchus at times. Violet was seen between Aristarchus and
     the Cobra Head. Seeing coditions were poor. Brightening of a point
     near C occurred roughly every 10-15 seconds and lasted 0.5 sec -
     (Cameron concludes that this was not due to the Earth's atmosphere).
     A 0.2 step drop in brightness was seen on point A (twin spots).
     Point C had reduced by 0.6 steps. Elsewhere was stable in brightness.
     Cameron 2006 catalog ID=281 and weight=4. ALPO/BAA weight=3.


2021-Apr-25 UT 06:06-08:50 Ill=95% Aristarchus observed by Louderback_D on 1979-8-6 *

     Aristarchus normal in red and blue filters however the
     Cobra Head part of Schroter's Valley was brighter in blue.
     Indeed it was very dull in red - Louderback says that this
     was not surprising as the whole areas around Aristarchus is
     brighter in blue. Louderback is an experienced observer
     of the Aristarchus area of more than 10 years. Cameron 2006
     extended catalogID=63 and weight=1. ALPO/BAA weight=1.


2021-Apr-25 UT 07:44-08:46 Ill=95% Manilius observed by Haas_W on 1939-6-30

     Manilius 1939 Jun 30 UT 06:05 Observed by Haas (NM?, USA, 12"? 
     reflector) "Dark area in S. part was I=2.0 but was I=3.7 on 7/30/39. 
     Obs. conditions were very similar." NASA catalog weight=4 (high). NASA 
     catalog ID #449.


2021-Apr-25 UT 08:01-09:58 Ill=95% Plato observed by Schmidt_J on 1873-4-10

     Plato 1873 Apr 10 UTC 21:00? Observed by Schmidt (Athens, Greece, 6" 
     refractor) "Under high sun, 2 faint clouds in E. part of crater."


2021-Apr-25 UT 09:34-10:45 Ill=95% Aristarchus observed by Foley_PW on 1975-9-18

     Aristarchus 1975 Sep 18 UT 21:00? Observed by Foley (Kent, 
     England, 12" reflector) "Deep blue-viol. spot in NW (IAU?) 
     interior corner." NASA catalog weight=3. NASA catalog ID #1414. 
     ALPO/BAA weight=3.


2021-Apr-26 UT 08:01-09:23 Ill=99% Eratosthenes observed by Bartlett on 1976-9-8

     Eratosthenes 1976 Sep 08 UTC 04:29 Observed by Bartlett (Baltimore, MD, 
     USA, 4.5" reflector 45-225x, S=5-4, T=5) "Psuedo-shadow X3 was present 
     but X disappeared from wall(same intensity?) which was rated 4 deg. 
     Disappearance of X so unexpected that he examined inner S wall very 
     carefully & was certain it was free from psuedo-shad. Had vanished 
     within 24h. Other pseudo-shadows showed no change. X reappeared next 
     nite. (X must have been 4deg; &this is much higher than any other 
     meas.). Variability of wall shadows may habe been what Pickering saw, 
     suggests Bartlett." Cameron 1978 TLP catalog weight=4 and catalog ID
     1452. ALPO/BAA weight=2.


2021-Apr-26 UT 08:38-09:41 Ill=99% Madler observed by Haas_W on 1940-9-16

     Madler 1940 Sep 16 UT 02:10 Observed by Haas (New Mexico? USA, 
     12"  reflector?) "Bright spot on S. rim was I=5.8 comp. with 8.9 
     on Aug 17 (see #470)." NASA catalog weight=4. NASA catalog ID #
     473. ALPO/BAA weight=2.