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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
On 1983 Feb 17 at 19:00?UT G. Amery (Reading, UK) noticed that Aristarchus was not visible in Earthshine, despite other less prominent features being seen. The observation was confirmed by other observers. The Cameron 2006 catalog extension ID=204 and the weight=2. The ALPo/BAA weight=2.
On 1983 Feb 17 at 19:00?UT G. Amery (Reading, UK) noticed that Messier was ill-defined. The Cameron 2006 catalog extension ID=204 and the weight=2. The ALPo/BAA weight=1.
On 1969 Oct 16 at UT 00:00-00:30 Celis (Quilpue, Chile, 3" refractor, x60, seeing=very good) observed brilliant points at 8.5 magnitude in Aristarchus. This was not seen the next night or the one after, nor after 5 days age. The Cameron 1978 catalog ID=1204 and weight=1. The ALPO/BAA weight=1.
On 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.
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.
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.
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.
On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that the southern Mare Crisium appeared to be obscured by a pale grey haze. Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.
On 1983 Feb 18 at 19:00?UT P.W. Foley (Kent, UK) noted that Toricelli B was steel blue in colour and this spread 10-15 miles outside the crater. This was odd because Torricelli B was only 6 miles in size. Cameron 2006 catalog extension ID=205 and weight=3. ALPO/BAA weight=2.
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.
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.
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.
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.
On 1983 Apr 19 at 21:45UT M.C. Cook (Frimley, UK) reported that Censorinus' exterior white patch was grayish at this time and there was a "momentary glow outisde the crater to the North West. The Crater Extinction Device brightness measurement for Censorinus was 4.0 whereas Proclus was 4.4. Cook was expecting a lower CED brightness measurement. Foley notes that Censorinus is usually brighter than Proclus. On 1983 Jan 29 Chapman obtained a very high brightness measurement for this spot. The Cameron 2006 catalog extension ID=212 and the weight=3. The ALPO/BAA weight=2.
On 1983 Feb 19 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
On 1979 Jul 01 at 22:00?UT D.J. Raden (Fort Meade, FL, USA, using a 10" reflector) detected a flare near to Halley (5E, 9S) visually with the eye and it lasted about 3-4 min - a sketch was made. However it was also found on one photographic slide taken with an exposure of 35 seconds. The observer comments that visually the flare was not as bright as it appeared in the photograph. In an area near Halley. The Cameron 2006 catalog extension ID=57 and weight=5. The ALPO/BAA weight=4.
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.
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.
On 1997 Apr 14 at UT 20:00-22:00 F. Paolo (Legnano, Italy) photographed a lunar flare on the lunar limb.
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.
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.
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.
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.
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.
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.
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.
On 1979 May 04 at 21:30-22:00UT Coates detected a star-like point inside Hipparchus L crater using averted vision. Cameron in her 2006 catalog extension comments that Hipparchus L is a highlands impact crater with a rille on the western ejecta blanket. The crater is the smallest one in a chain that are sequenced to be half the size of the previous crater in the chain. Apparently the largest crater in the chain is Hind with a largely landslide covered floor - although on the south is a dome? with a summit crater. Cameron's 2006 catalog extension gives this TLP an ID of 51 and a weight=2. The ALPO/BAA weight=2.
On 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.
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.
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.
Thaetetus 1952 Dec 24 UT 20:00? Observed by Moore (England?) "Bright spot, hazy line of light" NASA catalog weight=4. NASA catalog ID 556. ALPO/BAA weigh=2.
On 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.
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.
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.
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.
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.
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.
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.
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.
Alphonsus 2004 Feb 29 UT 19:00-19:15 Observed by Brook (Plymouth, England, 60mm OG x120) "Checked central peak of Alphonsus using 60mm OG x120 + right angle prism. Moon at very high elevation, seeing excellent once clouds had dispersed, transparency also excellent. Time of observation 19-00 hrs UT to 19-15 hrs UT. Noticed fluctuation of brightness of A's central peak compared with the peak of Arzachel. Alphonsus' peak generally brighter." BAA Lunar Section report. ALPO/BAA weight=2.
On 1983 Feb 21 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12" reflector) noticed a deep steel blue colour inside Toricelli B with a lighter colour about 10-15 miles outside. Foley came to the conclusion that this was too visible for its size. Cameron 2006 Catalog extension ID=206 and weight=3. ALPO/BAA weight=2.
On 2010 Aug 19 at UT 00:50-01:02 J.Albert (Lakeworth, FL, USA, C11, Transparency 3, Seeing 7-8, 86F and very humid. Oberver checking out repeat illumination condition appearence for Tycho concerning LTP #468 in the 1978 Cameron catalog. Did not see the effect from the original TLP report, but did see, immediately at looking at Tycho a very faint hint of redness in a pencil thin arc (< 1/4 circumference of the rim) confined to the top of the rim of the well-lit north east wall. Coloured arc similar in thickness to Rupes Recta, but not as sharply defined. The outer (E) edge was perhaps sharper than the inner edge. The redness was more on the inside of the top of the rim. The outside of the rim was bright white. This effect was seen in three different eyepieces, at 311x, 224x and 400x. Checked for the effect on other craters nearby but could not see this effect anywhere else. The colour had dissapeared by 01:02UT. The fade took about 1-2 minutes. Observation of Tycho continued until 01:06UT, but all seemed normal. Quick checks were made again on Tycho periodically until 02:50UT but the colour was not seen again. ALPO/BAA weight=3.
On 1979 Jul 03 at UT 20:55-21:20 J-H. Robinson (Teighmouth, Devon, UK, 10" reflector, seeing II) observed that Messier was brighter than Messier A. No colour was observed. The Cameron 2006 catalog ID is 58 and the weight=3. ALPO/BAA weight=1.
Linne 1868 Jul 28 UT 20:00? Observed by Tacchini (Palermo, Italy) "Shadow not so marked-had a light penumbra, indicated a feeble cavity. Other craters had a black shad. On 29th appeared completely white. Crater normal on 26th. (letter to Madler Sep. 16, 1868)." NASA catalog weight=4 (high). NASA catalog ID #159.
On 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Colour seen, mostly blueness on south rim and exterior of south rim at Bullialdus crater. Blueness seen too on Plato on inner SSW rim, but no colour reported on any other craters. Seeing III, 12" reflector used x200 and x360.
Colour seen, mostly blueness on inner SSW rim. Blueness also seen on south rim and exterior of south rim at Bullialdus crater. No colour reported on any other craters. Seeing III, 12" reflector used x200 and x360.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars saw three dark spots suddenly appear on Mare Crisium and disappear approximately 30 minutes later. Cameron 2006 catalog extension ID=145 and catalog weight=4. ALPO/BAA weight=2.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars saw TLP activity in Plato that Cameron thinks confirms what UK observers saw later. Cameron 2006 catalog extension ID=145 and catalog weight=4. ALPO/BAA weight=1.
Alphonsus 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.
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.
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.
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.
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.
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.
On 1990 Jan 07 at UT 20:20-20:58 G.North (Herstmonceux, UK) thought that he detected dullness in Torricelli B crater - Cameron comments that this cannot be shadow). The Cameron 2006 catalog ID=386 and the weight=3. ALPO\/BAA weight=2.
Brilliant blue color seen at first for seconds, later for min 2h later, in blue filter. Cameron 1978 catalog weight=4 (high). Cameron 1978 catalog ID 572.
Tycho 2971 Nov 28 UT 21:58-22:05 observed by D.B. Taylor (Dundee, UK, darker area inside the crater (NE and SE floor) in a Moon Blink device. However the observer does not report through which filter ir was darker. ALPO/BAA weight=1.
Plato 1971 Oct 30 UT 19:35-20:55 E.Watkins (Braintree, UK, 4.5" reflector, x45,x150, x225), thought he saw a faint patch at 19:35 and it still was visible at 19:40. At 19:50-19:55 he saw what may have been the remainder. At 20:55 he noticed a shadow in the area. ALPO/BAA weight=1.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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."
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.
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.
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.