TLP Repeat Illumination/Libration and Earthshine predictions for: Lithuiania - Vilnius



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


2026-May-01 UT 00:00-00:08 Ill=99% Plato observed by Fox_WE on 1938-2-14 *

     Plato 1938 Feb 14 UT 00:25 Observed by Fox (Newark, England, 
     6.5" reflector, x240) "Prominent gold-brown spot on E. wall 
     with yellow glow without definite boundary, spreading over 
     floor." NASA catalog weight=3. NASA catalog ID #431. ALPO/BAA 
     weight=3.


2026-May-01 UT 20:51-23:16 Ill=100% Torricelli_B observed by Cook_MC on 1993-4-6 *

     On 1993 Apr 06 at UT23:00 M.C. Cook (Frimley, UK) observed a TLP in 
     Torricelli B - "Noted that it was > yellow but only visible in mauve + 
     yellow combined". The Cameron 2006 catalog ID=460 and the weight=4. The 
     ALPO/BAA weight=2. 


2026-May-02 UT 20:41-23:42 Ill=98% Aristarchus observed by Kufer on 1972-3-30 *

     Aristarchus 1972 Mar 30 UTC 23:03-23:05 Observed by Kufer (11.5E, 
     48.25N, 110mm reflector) "A sudden brightening, but observations 
     limited by cloud" Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 
     30, pp53-61.


2026-May-03 UT 00:29-01:23 Ill=98% Taruntius observed by Wildey on 1962-9-15 *

     In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60" 
     reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in 
     magnitude in 2.5 hours - a photometric measurement. The average 
     magnitude for this age is 4.03, so therefore the crater had brightened 
     by two times above normal. The Cameron 1978 catalogID=769 and the 
     weight=5. The ALPO/BAA weight=3.


2026-May-03 UT 22:12-23:31 Ill=95% Mons_Piton observed by Louderback_D on 1981-10-15 *

     On 1981 Oct 15 at UT06:03-06:51 D. Louderback (South Bend, WA, USA, 3" 
     refractor, seeing=1-2 and transparency=5) observed that the brightenss 
     of 4 sun lit bright spots differed in red and blue light. "Appeared as 
     a cross. the 2 points A & D on his sketch (index) were affceted. They 
     were 10 pts dimmer in red than blue. Not due to seeing as they did not 
     fluctuate (as did the seeing)." This report came from the Cameron 2006 
     catalog and had an ID No. of 156 and a weight=3. The ALPO/BAA weight=2.


2026-May-18 UT 18:17-18:23 Ill=6% Aristarchus observed by Herschel_W on 1787-4-19

     were fainter. The third (about 0.066 deg from the northern limb)
     showed an erruption of fire or luminous matter. The brightness
     of this third volcano was much brighter than Mechain's comet.
     Webb thinks that these other two volcanos were Menelaus and
     Manilius. The Cameron 1978 catalog ID=32 and weight=4. The
     ALPO/BAA catalog weight=3.


2026-May-18 UT 18:17-18:23 Ill=6% Manilius observed by Herschel_W on 1787-4-19

     were fainter. The third (about 0.066 deg from the northern limb)
     showed an erruption of fire or luminous matter. The brightness
     of this third volcano was much brighter than Mechain's comet.
     Webb thinks that these other two volcanos were Menelaus and
     Manilius. The Cameron 1978 catalog ID=32 and weight=4. The
     ALPO/BAA catalog weight=1.


2026-May-18 UT 18:17-18:23 Ill=6% Menelaus observed by Herschel_W on 1787-4-19

     were fainter. The third (about 0.066 deg from the northern limb)
     showed an erruption of fire or luminous matter. The brightness
     of this third volcano was much brighter than Mechain's comet.
     Webb thinks that these other two volcanos were Menelaus and
     Manilius. The Cameron 1978 catalog ID=32 and weight=4. The
     ALPO/BAA catalog weight=3.


2026-May-18 UT 18:17-19:22 Ill=6% Aristarchus observed by Schroter on 1790-1-17 *

     On 1790 Jan 17 at UT 1800 Schroter (Lilienthal, Germany) observed a 
     small hazt spot of light in the vicinity of Aristarchus crater. The 
     1978 Cameron catalog ID=65 and the weight=4. The ALPo/BAA weight=1.


2026-May-18 UT 18:17-18:23 Ill=6% Aristarchus observed by Moore_P on 1974-2-23

     On 1973 Feb 23 before UT 23:00 P. Moore (Selsey, UK) reported 
     activity detected in Aristarchus. Fitton ovbserved from 23:40-
     00:20 and obsrved nothing unusual except for a minute white 
     area, about 1 km in diameter about 2km north of the central 
     peak. This spot kept on coming and going in the seeing. Fitton 
     regarded this as a permanent spot, although he had never noticed 
     it before. Nor could Fitton see the colour that he had noticed 
     on the previous night. A BAA report. ALPO/BAA weight=1.


2026-May-19 UT 18:19-19:23 Ill=12% Moon observed by Unknown_Observer on 1356-5-11

     A guest star trespassed against the moon. Cameron
     suspects that this was a meteor? ALPO/BAA catalog weight=1.
     Cameron 2006 catalog weight=0. Julian date 1356 May 03.
     Gregorian date 1356 May 11.


2026-May-19 UT 18:19-19:00 Ill=12% Aristarchus observed by Herschel_W on 1783-5-4

     William Herschel and Mrs Lind saw a red, 4th magnitude brightness, less
     than 3 arc sec in diameter. Herschel believed that he was seeing a 
     lunar volcano in eruption.


2026-May-19 UT 18:19-19:01 Ill=12% Aristarchus observed by Herschel_W on 1787-4-20

     the previous night". Its diameter is less than 3"
     (5-6 km) as judged by comparing with the angular diameter
     of Jupiter and also Jupiter's third satellite (the
     diameter of the active part of the volcano was at least
     twice the angular diameter of Jupiter's Moon). The shape
     was an irregular round figure with very sharply defined edges.
     It resembled a small piece of burning charcoal, when it is covered
     by a thin coat of white ash. The other two volcanos were 
     much further towards the centre of the Moon and 
     resembled large faint nebulae that are gradually
     much brighter in the middle; but with no well defined luminous
     spot within them. These three spots are plainly to be
     distinguished from the rest of the marks upon the Moon;
     for the reflection of the Sun's rays from Earth is, in its present
     situation, sufficiently bright with a ten-foot reflector, to
     show the Moon's spots, even the darkest of them. Such
     similar phenomena were not perceived in the previous month,
     despite using the same telescope. The volcano was not as bright
     as his 4th May 1783 sighting (resembling a 4th magnitude star as
     seen with the naked eye), though the latter was smaller in diameter.
     Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of
     4. The ALPO/BAA catalog weight is 3.


2026-May-19 UT 18:19-19:01 Ill=12% Manilius observed by Herschel_W on 1787-4-20

     the previous night". Its diameter is less than 3"
     (5-6 km) as judged by comparing with the angular diameter
     of Jupiter and also Jupiter's third satellite (the
     diameter of the active part of the volcano was at least
     twice the angular diameter of Jupiter's Moon). The shape
     was an irregular round figure with very sharply defined edges.
     It resembled a small piece of burning charcoal, when it is covered
     by a thin coat of white ash. The other two volcanos were 
     much further towards the centre of the Moon and 
     resembled large faint nebulae that are gradually
     much brighter in the middle; but with no well defined luminous
     spot within them. These three spots are plainly to be
     distinguished from the rest of the marks upon the Moon;
     for the reflection of the Sun's rays from Earth is, in its present
     situation, sufficiently bright with a ten-foot reflector, to
     show the Moon's spots, even the darkest of them. Such
     similar phenomena were not perceived in the previous month,
     despite using the same telescope. The volcano was not as bright
     as his 4th May 1783 sighting (resembling a 4th magnitude star as
     seen with the naked eye), though the latter was smaller in diameter.
     Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of
     4. The ALPO/BAA catalog weight is 2.


2026-May-19 UT 18:19-19:01 Ill=12% Menelaus observed by Herschel_W on 1787-4-20

     There were two other volcanos were much further towards the centre of 
     the Moon and resembled large faint nebulae that are gradually
     much brighter in the middle; but with no well defined luminous
     spot within them. These three spots are plainly to be
     distinguished from the rest of the marks upon the Moon;
     for the reflection of the Sun's rays from Earth is, in its present
     situation, sufficiently bright with a ten-foot reflector, to
     show the Moon's spots, even the darkest of them. Such
     similar phenomena were not perceived in the previous month,
     despite using the same telescope. The volcano was not as bright
     as his 4th May 1783 sighting (resembling a 4th magnitude star as
     seen with the naked eye), though the latter was smaller in diameter.
     Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of
     4. The ALPO/BAA catalog weight is 2.


2026-May-19 UT 18:19-19:23 Ill=12% Aristarchus observed by Gobel on 1824-5-1

     In 1824 May 01 at UT 21:00 Gobel (Koburg, Germany) observed near 
     Aristarchus, a blinking light of magnitude 9-10, in Earthshine. The 
     ALPO/BAA ID=99 and the weight=4. The ALPO/BAA weight=3.


2026-May-19 UT 18:19-18:24 Ill=12% Picard observed by Unknown_English_Observer on 1877-5-15

     East of Picard (56E, 15N) 1877 May 15 UT 20:30 Observed by an
     unknown observer (in England?) "Bright spot. (white patch) 
     there unlikely to be bright at sunrise normally)." NASA 
     catalog weight=3. NASA catalog ID #189. ALPO/BAA weight=2.


2026-May-19 UT 18:19-18:25 Ill=12% W_Limb observed by Golubev_VA on 1978-1-12

     On 1978 Jan 12 at 08:21UT (assuming this is not local time) V.A. 
     Golubev (Ussurian Sam Station, Vladivostock, Russia, x100) saw on the 
     western edge of the Moon an occultation of the magnitude 6? star 
     ZC2394. Just prior to the occultation, between the star and the dark 
     limb could be seen a bridge of light. The ALPO/BAA weight=1. 


2026-May-19 UT 18:19-21:26 Ill=12% Picard observed by Gray_R on 2002-9-10 *

     Picard 2002 Sep 10 UT 02:30-03:21 Observed by Gray (Winnemucca, NV, 
     USA, 152mm refractor x248,S=2-3, T=5) "observed in White light and 
     through Wratten Red 25  and Blue #38A filters. The crater through the 
     Red 25 filter looked very similar to the view in White light. Using the 
     Blue 38A filter Picard almost dissapeared - it looked like a dim, 
     faintly observable black spot with the sunlit, east facing west crater
     wall barely visible. Observer had not observed Picard very often, so 
     was not too familiar with it but it seemed odd that it almost vanished 
     through the blue filter." ALPO observational report. The ALPO/BAA 
     weight=3.


2026-May-19 UT 19:15-19:25 Ill=13% Earthshine: sporadic meteors

2026-May-20 UT 18:20-19:52 Ill=21% Aristarchus observed by Gobel on 1824-5-2

     In 1824 May 02 at UT 21:00-21:15 Gobel (Germany, seeing = excellent) 
     saw near Aristarchus (47W, 23N) a soft (matte) light like a star seen 
     through mist. Brightness increased suddenly to magnitude 9-10. After 
     several seconds it became weak, finally disappearing. repeated this 3 
     to 4 times in 15 minutes. The Moon was a very narrow sickle shape and a 
     major feature could be seen in Earthsine. The date given was 1821 but 
     Cameron says it is 1824. The Cameron 1978 catalog ID=88 and weight=4. 
     The ALPO/BAA weight=3. 


2026-May-20 UT 18:20-18:39 Ill=21% Milichius observed by Woodward_AJ on 1948-8-9

     In 1948 Aug 09 at UT 02:40 Woodward (Toronto, Canada, sky very 
     clear) observed, using a telescope, a bright, bluish-white to 
     greyish-yellow, 3 sec duration flash in Earthshine. The flash 
     was between magnitude 0 to 1 if one were looking for a similar 
     magnitude star in the sky without a telescope. There was 
     possibly a very slight motion of the flash in a southerly 
     direction. Also there were two terminal bursts. Cameron suggsts 
     that this might have been a meteor? Ref: Moore, P.A. Guide to 
     the Moon (1953), p117. The Cameron 1978 catalog ID=508 and 
     weight=0. The ALPO/BAA weight=1.


2026-May-20 UT 18:20-20:14 Ill=21% Macrobius observed by Persson on 1972-4-17 *

     Macrobius 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore, 
     Danmark, 2.5" refractor x58 & x100, seeing=good) "Macrob. was a white 
     ring without outline or shadow. (shad. should have been seen--sun  only 
     up 5deg alt. Something was raising albedo from 0 to surround." NASA 
     catalog weight=3 (average). NASA catalog ID #1328.


2026-May-20 UT 18:20-20:14 Ill=21% Proclus observed by Persson on 1972-4-17 *

     Proclus 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore, 
     Danmark, 2.5" refractor x58 & x100, seeing=good) "Proclus not as clear 
     as usual" NASA catalog weight=3 (average). NASA catalog ID #1328.


2026-May-20 UT 18:20-20:14 Ill=21% W_Limb observed by Hvidore on 1972-4-17 *

     On 1972 Apr 17 at UT 20:10-20:45 Hvidore (Denmark, 2.5" refractor, x58, 
     x100, seeing=good) noted a brightening of the dark limb between 
     Hercynian mountains and Cleostratus crater. Thought that it was due to 
     atmospheric disturbance. Cameron says similar to other reports e.g. No. 
     1156. The Cameron 1978 catalog ID=1330 and weight=1. The ALPO/BAA 
     weight=1.


2026-May-20 UT 19:17-20:10 Ill=22% Earthshine: sporadic meteors

2026-May-21 UT 18:22-18:27 Ill=32% Cyrillus_G observed by Paynter_L on 1983-8-13

     Cyrillus G 1983 Aug 13 UT  20:17-20:59 L. Paynter (Radcliffe, 
     UK, 22cm reflector, seeing III or better, transparency good). 
     Cyrillus G was relatively bright and surrounded by a shaded 
     area. On increasing the magnification from x65 to x130 he became 
     aware of a diffused "carise" colouration, in and around the 
     crater. The colouration was similar though to other spurious 
     colour on the Moon, but unlike other areas affected by spurious 
     colour, was more diffuse and spread out and not so concentrated. 
     In view of some uncertainty by the observer, ALPO/BAA weight=1.


2026-May-21 UT 18:25-20:22 Ill=32% Posidonius observed by Andre on 1963-10-22

     In 1963 Oct 22 at UT 21:00? Andre (Belgium, 2.25" refractor) noticed 
     that Posidonius A's shadow was not seen when it should have been seen. 
     The Cameron 1978 catalog ID=777 and weight=3. The ALPO/BAA weight=2.


2026-May-21 UT 19:38-20:39 Ill=32% Aristarchus observed by Reiland on 1975-3-18

     On 1975 Mar 18 at UT 00:57-04:00 Reiland, Brown and Lojeck (Pittsburgh, 
     Pennsylvania, 6" reflector x45 and 8" reflector x200, photos taken) 
     observed the following at Aristarchus: "While obs. Earthshine on moon, 
     saw it glowing -- a bright steady star-like glow, est. at 5-8th mag. 
     First noted at 0057h. Obs. other obj. then came back to it. It was 
     still there -- till moonset (@0500h). Saw it in other telscopes & 
     Lojeck took photos. (photo shows Aris. prominent, but also LaLande, 
     Pytheas & Timocharis. 2 prs. in Aris. but there are other pts on the 
     print, it may be grain)". The Cameron 1978 catalog ID=1404 and 
     weight=5. The ALPO/BAA weight=2.


2026-May-21 UT 20:39-00:00 Ill=32% S_Pole observed by Dzapiashvili on 1969-7-19

     South Cusp 1969 Jul 19 UT 17:55-19:10 Observed by Dzapiashvili 
     (Georgia, Soviet Union) "Saw an abnormally bright spot at end of 
     S.cusp. Polariz. meas. at 8.3% at 1845-1847h (Apollo 11 watch?)"
     NASA catalog weight=5 (very good). NASA catalog ID #1164.


2026-May-21 UT 19:19-20:41 Ill=32% Earthshine: sporadic meteors

2026-May-22 UT 18:23-20:16 Ill=42% Cepheus_A observed by Collins_M on 2000-10-4

     Cepheus A 2000 Oct 04 UTC 08:15-08:50 Observer: Maurice Collins 
     (New Zealand, 90cm ETX) - observer noted that crater was 
     extremely bright - wasn't sure if this was normal and at the 
     time rated it as the brightest (contrasty?) crater that he had 
     ever seen on the Moon. Many years later he suspected that he may 
     have mis-identified the crater. This still leaves us with thr 
     problem as to why a crater should be so bright in this region, 
     and if so, which one? ALPO/BAA weight=1.


2026-May-22 UT 20:40-21:00 Ill=43% Helicon observed by Novet on 1788-3-13

     Lunar volcano, seen on the dark side, as bright as a 
     6th magnitude star,


2026-May-22 UT 20:40-21:00 Ill=43% Riccioli observed by Schroter on 1788-3-13

     A bright spot was seen. Cameron 1978 catalog
     ID=40 and weight=3. ALPO/BAA catalog weight=2.


2026-May-22 UT 19:21-21:02 Ill=44% Earthshine: Camelopardalis: ZHR=? (vel=16 km/s)

2026-May-23 UT 18:25-18:34 Ill=53% Posidonius observed by Houdard on 1915-4-21

     On 1915 Apr 21 at UT 1800? Houdard (France) noticed a special 
     occurrence south of Posidonius which he took as evidence of water 
     vapor. The Cameron 1978 catalog ID=351 and weight=3. The ALPO/BAA 
     weight=2.


2026-May-23 UT 18:50-20:32 Ill=54% Mare_Crisium observed by Williams_AS on 1882-3-26

     A.S.Williams of West Brighton, UK, using a 2.75" Acromatic refractor 
     (x75, definition good, but it was too windy to use the 5.25") noticed 
     that the mare was a mass of light streaks and spots. This was not 
     considered unusual, but these features were unusually plain, distinct 
     and brught, especially the streaks. The observer could not recall 
     seeing the streaks so bright and clear with this instrument before, and 
     indeed hardly ever with the larger 5.25" telescope. The observer 
     continued to observe Mare Crisium on many nights for several months and 
     comments that such an unusual exhibition was later seen perhaps once 
     every 2-3 lunations. They are uncertain how much this effect depends 
     upon the state of the Earth's atmosphere. This TLP does not make it 
     into the Cameron 1978 catalog and so may not be a TLP - however it has 
     been included, just in case, and to try to understand what was actually 
     seen. ALPO/BAA weight=1.


2026-May-23 UT 19:23-21:14 Ill=54% Earthshine: Camelopardalis: ZHR=? (vel=16 km/s)

2026-May-24 UT 18:27-19:37 Ill=64% Unknown observed by Von_Speisssen on 1887-11-23

     On 1887 Nov 23 at 16:15-17:00 UT Von Speissen & others of Berlin, 
     Germany, using a 3.5" refractor (x180), saw a "Triangular patch of 
     light (time in Middlehurst catalog wrong? Moonrise was at > 18:30h. If 
     year =1887, age=8.8 days & time OK. must be same observation as ID=256 
     in Cameron 1978 catalog - note similarity of names and also the 
     reference date). Cameron 1978 catalog ID=258 and weight=1.


2026-May-24 UT 18:27-18:55 Ill=64% Ross_D observed by Harris on 1964-8-16

     SE of Ross D 1964 Aug 16 UT 04:18-05:20 Observed by Harris and 
     Cross (Whittler, CA, USA, 19" reflector?) "Bright area. 
     Condensations varying with time" NASA catalog weight=3. NASA 
     catalog ID #840. ALPO/BAA weight=3


2026-May-24 UT 18:27-18:59 Ill=64% Moon observed by Mattingly on 1972-4-21 *

     On 1972 Apr 21 at UT19:01 Mattingly (Apollo 16 commander, in orbit 
     around the Moon, using his naked eyes) saw a bright flash from below 
     his horizon on the lunar farside (approximate longitude=180 deg). he 
     was dark adapted at the time. However no sesimic event was recorded and 
     so Cameron suspects that this was not a meteor impact but a cosmic ray 
     striking his eye. The Cameron 1978 catalog ID=1331 and weight=3. The 
     ALPO/BAA weight=3.


2026-May-24 UT 18:27-18:34 Ill=64% Alphonsus observed by Darling_D on 1990-5-3 *

     On 1990 May 03 at UT 02:03 D. Darling (Sun Praire, WI, USA, seeing 
     steady) observed a point of light inside Alphonsus just to the north 
     of the central peak, along the "center ridge". It was seen again, half 
     way between the central peak and the noth west rim - along the ridge. 
     All other features were normal. The Cameron 2006 catalog ID=403 and the 
     weight=3. The ALPO/BAA weight=3.


2026-May-24 UT 18:49-20:43 Ill=64% Plato observed by Bianchini on 1725-8-16

     A track of reddish light, like a beam, was seen
     crossing the shadowed floor of Plato.This TLP has an ID
     No. of 17 in Cameron's 1978 catalog and a weight
     of 3. It has an ALPO/BAA weight of 2.


2026-May-24 UT 18:58-20:37 Ill=64% Plato observed by Williams_AS on 1882-3-27

     Plato 1882 Mar 27 UTC 20:10-21:00 Observer: A.S. Williams (Brighton, 
     UK, 5.5" saw the shadow filled floor of Plato at Sunrise with a 
     "Glowing and curious milky kind of light". About 1 hour after sunrise 
     at Plato, there was no trace of this effect. The TLP filled the whole 
     floor except at a quarter of the diameter from the east wall which was 
     actually quite black. The observer saw a curious phosphorescent glimmer 
     at sunset (April11th?). Cameron comments that Birt, Nelson and Waugh 
     saw obsecuring mist or fog in Plato on many occasions. Cameron 1978 
     catalog ID=229 and weight=3. ALPO/BAA weight=3.


2026-May-24 UT 20:59-21:16 Ill=65% Mare_Anguis observed by Louderback_D on 1979-12-27

     On 1979 Dec 27 at UT 05:32 D. Louderback (South Bend, WA, USA, 6" 
     reflector x240, seeing=3-6/10 and T=4) noticed "2 small high-sun areas 
     nr. Eimmart - brightening around Mare Crisium, except for interior of 
     Proclus - in blue light. They were brighter than 2 spots on Cap. 
     Agarum rated 8.5 & Proc. 9. Not as bright next night. Probably a real 
     blue light brightening". Cameron 2006 catalog ID=79, location on Moon: 
     (70E, 23N) and weight=4. 


2026-May-24 UT 21:03-21:16 Ill=65% Ross_D observed by Harris on 1965-9-4

     On 1965 Sep 03 UT03:00-05:00 D.Harris (Located near Whittier 
     College, Whittier, CA, USA, using a 10" f/8.2 Newtonian 
     reflector, x78 & x208, seeing 5-6, transparency 2-0) observed a 
     ridge obscured SSW of Ross D. No drawing was made, only a 
     written description. "Ridge not visible near crater; possible 
     white patch 1/3 Ross D diameter" The ridge is the wrinkle ridge 
     extending NNE from Ross D, a well established often visible 
     feature. Harris comments that this was not one of the better TLPs 
     seen near Ross D, and there were no independent observers, 
     neverless he was ceratin of this being a TLP, and it was 
     consistant with other activity seen near this crater between 1964 
     and 1970. Cameron 1978 catalog ID 891 and weight=3. ALPO/BAA 
     weight=2.


2026-May-24 UT 21:14-21:16 Ill=65% Plato observed by Brenner on 1895-5-2

     Plato 1895 May 02 UT 20:45, 23:45 Observed by Brenner and Fauth 
     (Germany?) "Streaks of light (Brenner) bright parallel bands in 
     center Fauth (indep. confirmation?)." NASA catalog weight=5. 
     NASA catalog ID #284. ALPO/BAA weight=1.


2026-May-25 UT 18:28-18:54 Ill=73% Censorinus observed by Hopp on 1972-4-22 *

     On 1972 Apr 22 at UT 18:58-00:28 Hopp (75mm refractor, 1200mm focal 
     length,transparency 4 out of 5 and seeing 4 out of 5, located at 52deg 
     30' N and 13deg 15'E) Censorinus brighter than normal relative to 
     Proclus. Published in Hilbrecht and Kuveler, Moon and Planets, 30 
     (1984) p53-61. ALPO/BAA weight=1.


2026-May-25 UT 18:38-20:32 Ill=73% Clavius observed by Cook_Miss on 1915-4-23

     Clavius 1915 Apr 23 UTC 20:00 Observed by Cook (England?) "Narrow 
     straight beam of light from crater A to B" NASA catalog weight=1 (very 
     poor). NASA catalog ID #352. ALPO/BAA weight=1.


2026-May-25 UT 20:22-21:14 Ill=74% Tycho observed by Abel_P on 2009-5-3

     On 2009 May 03/10 UT23:20-00:11 P. Abel (Leicester, UK, 20cm reflector, 
     x312, seeing III-IV) observed that the north east wall was slightly 
     brighter than would have been expected, slightly blurred (not seeing 
     related blurring) and had a strong orange-brown colour. No spurious 
     colour seen elsewhere. A change in eyepieces showed the same effect. No 
     luck in alerting other observers. A drawing was made at 23:20UT and 
     finished at 00:12UT. At 23:12UT part of the inner NW floor had a dull 
     brown colour, whereas before it was grey.By 00:11UT the colour effect 
     was fading and by 00:18 seeing condirions were too bad to continue. M. 
     Cook (Mundesley, UK, 9cm Questar telescope, x80, x130, seeing III, 
     transparency moderate to good) had observed Tycho earlier in the 
     evening at 22:15UT, but had seen no signs of colour. W. Leatherbarrow 
     (Sheffield, UK, 8cm scope, high cloud interuptions and bad seeing) had 
     taken monochrome images at UT 20:07 and 20:10, but these showed nothing 
     unusual, and he checked the crater visually at 00:00-00:30, but 
     detected no colour, although the Moon's low altitude contibuted to poor 
     seeing conditions and some spurious colour was seen. CCD images from M. 
     Collins (Palmerston North, New Zealand) taken at 00:46UT showed 
     nocolour apart from spurious colour on contrasty edges, in no way 
     reflecting what was seen early by P. Abel. The ALPO/BAA weight=2.


2026-May-25 UT 22:00-23:12 Ill=74% Birt observed by Capen_CF on 1955-4-2 *

     Birt 1955 Apr 15 UT 03:20-05:00 Observed by Capen (California 
     Seeing=Excellent) "Small craters between Birt & wall were invis. at 
     times under excellent seeing, while craterlets on w.side were 
     continually obs." NASA catalog weight=4 (high). NASA catalog ID #586.


2026-May-26 UT 19:04-20:54 Ill=82% Eudoxus observed by Unknown_Observer on 1882-1-29

     On 1882 Jan 29 at UT 17:00-17:30 an unknown observer noted an unusual 
     shadow in Eudoxus crater. The Cameron 1978 catalog ID=227 and the 
     weight=2. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.


2026-May-27 UT 19:00-19:30 Ill=89% Plato observed by Moseley_T on 1966-9-25

     Plato 1966 Sep 25 UT 23:12-23:35 Observed by Moseley (Armagh, Nortern 
     Ireland, 10" refractor, x140) "Eng. moon blink sys. blinks inside the 
     crater. Very dubious due to low alt. of moon." NASA catalog weight=1 
     (very low). NASA catalog ID #982.


2026-May-27 UT 19:00-19:54 Ill=89% Gassendi observed by Whippey_MR on 1967-6-18

     Gassendi 1967 Jun 18 UT 22:50-23:59 Observed by Whippey 
     (Northalt, England, 6" reflector?) "Faint redness outside NE & 
     SE wall of crater." Moore (10" Armagh refractor, x360) was 
     observing earlier 22:10-22:40, with and without a Moon Blink but 
     detected no redness, however his observing conditions were not 
     very good at the time. NASA catalog ID #1039. NASA catalog 
     weight=3. ALPO.BAA weight=2.


2026-May-28 UT 18:32-19:06 Ill=94% Aristarchus observed by Ventzke on 1972-4-25 *

     Aristarchus 1972 Apr 25 UTC 19:15-19:20 Observer Ventzke (located at 
     48.67N, 12.00E) - diffuse brightening on inner N. wall, reddish. 60mm 
     refractor used. Ref. p53-61 of Hilrecht & Kuveler Moon & Planets vol 
     30, 1984.


2026-May-28 UT 18:46-19:45 Ill=94% Earthshine observed by Saheki_T on 1950-8-25 *

     In 1950 Aug 25 at UT 10:55 T.Saheki (Osaka, Japan) observed a 
     stationary yellow-white flash on the Moon of duration 0.2 sec 
     and mag 6.5. Cameron suggests that this was a meteor. The 
     Cameron 1978 catalog ID=536 and weight=0. The ALPO/BAA weight=1.


2026-May-28 UT 22:45-23:27 Ill=95% Proclus observed by Bartlett on 1950-7-27 *

     Proclus 1950 Jul 27 UT 02:56 Observed by Bartlett (Baltimore, 
     MD, USA) described in the NASA catalog as: "C.p. of Proc. 
     disappeared)" 5" reflector used at x100, NASA catalog weight=4. 
     ALPO/BAA weight=2.


2026-May-30 UT 20:54-23:43 Ill=100% Promontorium_Agarum observed by Louderback_D on 1990-5-9 *

     On 1990 May 09 at UT08:24-08:28 D. Louderback (South Bend, WA, USA, 3" 
     reflector, x150, Clears sky) noticeed in Promontorium Agarum (Cape 
     Agarum), that at 08:24UT the west point (C) dimmed to a brightness of 
     6.5 before ragaining its normal brightness at 7. Cameron comments that 
     these are wedge measurements equivalent to 0.5 steps in Elger's 
     brightness scale. No other effects noticed elsewhere. The Cameron 2006 
     catalog ID=404 and the weight=3. The ALPO/BAA weight=2.


2026-May-31 UT 21:18-22:05 Ill=99% Aristarchus observed by Moore_P on 1963-11-1 *

     On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector) 
     observed something unusual in Aristarchus/Copernicus/Kepler - 
     the Cameron catalog is not very clear which. The Cameron 1978 
     catalog ID=779 and weight=5. ALPO/BAA weight=1.


2026-May-31 UT 21:18-23:05 Ill=99% Copernicus observed by Moore_P on 1963-11-1 *

     On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector) 
     observed something unusual in Aristarchus/Copernicus/Kepler - 
     the Cameron catalog is not very clear which. The Cameron 1978 
     catalog ID=779 and weight=5. ALPO/BAA weight=1.


2026-May-31 UT 21:18-22:10 Ill=99% Kepler observed by Manchester_University on 1963-11-1 *

     On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du 
     Midi, France, 24" reflector) observed in Kepler an 
     enhancement in red light at 672.5nm and 545.0nm. Luminescence 
     ~86% +/-3% of background. According to the Cameron catalog, 
     Moore(12" reflector, UK) noted something unsual between 22:30 
     and 03:00 but this might apply to Kepler, Coperncius, and/or 
     Aristarchus and that was seen 23:30-03:00? - the catalog is not 
     very clear. The Cameron 1978 catalog ID=779 and weight=5. The 
     ALPO/BAA weight=4.


2026-May-31 UT 21:18-23:35 Ill=99% Unknown observed by Scarfe on 1963-11-2 *

     On 1963 Nov 02 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral 
     line dpeth anomaly? The cameron 1978 catalog ID=780 and weight=5. The 
     ALPO/BAA weight=4.