Lichtenberg area 1940 Oct 22 UT 07:12 Observed by Barcroft (Madera, CA, USA, 6" reflector) "Only slightly redish color this nite, comp. with previous nites (see #'s 467 & 477)" NASA catalog weight=3. NASA catalog ID #478. ALPO/BAA weight=1.
On 1958 Dec 02 at UT 06:00 an unknown observer detected a TLP on the Moon. The reference for this is from Palm, 1967 Icarus. The Cameron 1978 catalog ID=709 and weight=0. The ALPO/BAA weight=1.
1965 Oct 16 UTC 08:05-10:00 Observed by McLarin (Huntsville, AL, 20" reflector), Bates, Hall (Prt. Tobacco, MD, 16" reflector), Hardie (Nashville, TE, 30" reflector) "Color flashing pulsations intermittently detected by Trident MB device in Huntsville but not seen in Md, or vis. by Hardie when alerted. Pulsations in Cassini different from atmosphere" NASA catalog weight=2 (low). NASA catalog ID #906.
Alphonsus 1959 Oct 23 UT 02:10-02:35 Observed by Kozyrev (Crimea, Soviet Union, 50" reflector) "Red glows, emiss. spect. got C2, C3 (Moore obs. 0100-0300 & saw nothing unusual in an 8.5" reflector)" NASA catalog ID=723. NASA catalog weight=5. ALPO/BAA weight=4.
Aristarchus 1964 Jul 31 UT 02:00-02:23 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180) "Deep ravine on E.glacis interrupted midway of its length by apparent break just below rim of craterlet assoc. with EWBS. Normally, ravine is seen continuous. Probable obscuration at pt, of break." S=7, T=5. NASA catalog weight=4. NASA catalog ID #834. ALPO/BAA weight=2.
Triesnecker 1966 Jul 10 UTC 02:00-02:15 Observed by Allen (Cambridge, England) and other observations by Corralitos Observatory (Organ Pass, NM, USA). Described in NASA catalog as: "Faint illum. of a ridge in shadow; faded quickly (in BAA judged dubious). Not confirmed by Corralitos MB." 12?" refractor (x280) used at Cambridge and at Corralitos 24" reflector. NASA catalog weight=1 (very low). NASA catalog TLP ID No. #956.
In 1930 Sep 15 at UT00:00 Vasilev (Russia) observed the following in Alphonsus crater: "During SS there was a triangular spot nr. W. wall until merging with shad. of wall (normal?) (date wrong as age is 3.2d & should be @ 23d. 9/15/30 would be correct: aux. data for 15th". The Cameron 1978 catalog ID=0. The Cameron 1978 catalog ID=398 and weight=0. The ALPO/BAA weight=1.
On 1944 Aug 12 at UT 04:00 H.P. Wilkins (Kent, UK, 8.52" reflector) observed that central craterlet in Plato was unusually bright and shows up as a bright white spot on his sketch - though this might have been artistic license in his sketch. His written notes refer to the unusual lack of a rim (especially the northern part) to this craterlet. The ALPO/BAA weight=2.
Aristarchus 1970 Jul 26 UT 15:00? Observed by Sekiyuchi (Tokyo, Japan, 36" reflector) "Polarimetric and photoeletric anomalies on Moon" NASA catalog weight=5. NASA catalog ID #1268. ALPO/BAA weight=5.
Aristarchus 1965 Oct 18 UTC 07:30-07:36 Observed by George, Dervas (Huntsville, Alabama, 20" reflector x125) "Color with intermittent displays, detected with Trident MB device. Observers dubious. NASA catalog weight=2 (low). NASA catalog ID #907.
Copernicus 1955 May 15 UTC 03:30 Observed by Firsoff (Somerset, UK, 6.5" reflector x70) "Almost as bright in violet filter as Aristarchus" NASA catalog weight=4. NASA catalog ID #592.
Aristarchus 1983 Aug 03 UT 0305-0400 Observed by R,Moseley (Coventry, UK, 6" reflector, seeing II, Transparency very good). At the start of the observation, the NE wall and immediate exterior was the brightest area visible (this is normal) and seemed tinged with a faint blue/violet. At 03:45 the impression of colour was fading in the brightening sky, but by 03:55 the colour was back again with a faint violet/purple surrounding the whole formation from E clockwise to N. The observer found it difficult to decide whether it was really a colour on the Moon, or an optical illusion. ALPO/BAA weight=1.
On 1989 Apr 10 at UT01:30-02:00 D. Darling (Sun Praire, WI, USA, 12.5" reflector, x64, seeing excellent) observed that Earthshine was not as good as the previous night "~1/4
Bullialdus 1979 Oct 31 UT 20:20-20:30 G.W. Amery (Reading, UK) observed a plateau area to be dark and distinct in blue light (Wratten 44a), but only just visibly in red (Wratten 25) and yellow light. Observer wonders if this is natural surface colour? ALPO/BAA weight=1.
Aristarchus 1982 Nov 29 UT 21:47 Observed by P. Madej (Huddersfield, UK) flashes seen to NW. ALPO/BAA weight=1.
On 1983 Oct 20 at UT23:40 P. Moore (Selsey, UK) observed that Aristarchus was brighter than normal (as measured with a CED) and much more so that Censorinus, Menelaus, and Proclus craters (in turn). Cameron comments that Moore is a very experienced observer. The Cameron 2006 catalog ID=231 and the weight=4. The ALPO/BAA weight=2.
On 1977 Mar 04 at UT 20:55-21:18 JH Robinson (Teighmouth, Devon, UK, 26cm reflector, x200, Wratten 25 and 44a filters, seeing steady, transparency varies from fair to very poor and cloud eventually halted observations). Copernicus was very indistinct. All other features examined were normal. This is a BAA Lunar Section observation. ALPO/BAA weight=2.
On 1977 Mar 04 at UT 20:55-21:18 JH Robinson (Teighmouth, Devon, UK, 26cm reflector, x200, Wratten 25 and 44a filters, seeing steady, transparency varies from fair to very poor and cloud eventually halted observations). The floor of Fracastorius is significantly brighter in a red filter than in a blue filter. This is a BAA Lunar Section observation. ALPO/BAA weight=2.
Aristarchus 1976 Jan 16 UT 22:00-23:15 Observed by P.W. Foley (Wilmington, Kent, UK, seeing II) - Aristarchus was tremendously bright. No colour seen. ALPO/BAA weight=1.
Hyginus Nova 1877 May 27 UT 20:37 Observed by Klein (Cologne, Germany) NASA Catalog Event #190, NASA Weight=1 (Very Low). Event described as: "New crater 3mi.diam Didn't see anything there 12 yrs. previously in studies. (Schmidt showed it sometimes dark, sometimes light, sometimes not at all. Neison studied region minutely 20x from July 1870-Aug,1875 & did not record it. Gauth says it's not new (changes there?) "References: Neison, E. The Moon, Longmans, Green and Co., London, 1876; Astron. Reg. 17, 204, 1877?
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent, UK, 30cm Newtownian) observed blueness along the inner southern wall of Plato, though the centre of the activity was offset on one side. This is a BAA report. The ALPO/BAA weight=1.
Plato 1944 Sep 03 UTC 03:40 - A.W. Mount (Fort Worth, TX, USA, Conditions good, seeing 6/10) saw a small white bright point of light appear suddenly close to the W. wall of Plato glowed briefly as by far the most conspicuous object in the lunar field of view and vanished quickly after approximately 2 sec. It was star-like in appearance and was stationary on the Moon's surface - about magnitude 6? Angular diameter of the flash was <= 1". Observing conditions good enough to see the central craterlet in Plato. 20cm reflector used. Ref. DJALPO Vol 45, p28 Spring 2003.
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.
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 somehting 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=5.
On 1898 Apr 06 atUT 23:00 Pickering (Cambridge, Mass, USA, 15" refractor?) observed in Schroter's valley and it's vicinity "Variations in vapor col. Crater E now most conspicuous instead of C which is now least conspic., but not covered with vapor. (in drawing 2 gaps show, time est. fr. given ol. ". The cameron 1978 catalog ID=298 and weight= 3. The ALPO/BAA weight=2.
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.
On 1975 Mar 28 at UT22:30-23:42 P.W. Foley (Kent, UK) observed orange/red in Aristarchus. The ALPO/BAA weight=1.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent, UK, 30cm Newtownian) observed blueness along the inner southern wall of Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1989 Jun 20 UT 0628-06:58 R. Manske (Sun Praire, WI, USA, 1" refractor) discovered blue on the north west inner wall and red on the south east outer wall. At 05:39 he could see the blue but not the red. No colour was detected on Tycho, but he thought that he could detect a pinkish colouration over the whole Moon. The Cameron 2006 catalog ID= 367 and the weight=1. The ALPO/BAA weight=1.
Aristarchus 1983 Oct 22 UT 22:00 G.W. Amery, (Reading, UK, Seeing III-IV) found Aristrachus so bright that the CED was unable to give a reading. The crater's interior was also diffuse in appearance. The Cameron 2008 catalog ID=232 and weight=4. The ALPO/BAA weight=3.
Aristarchus 1969 May 03 UTC 07:00? Observed by Smith, Gallivan (Corralitos Observatory, Organ Pass, NM, 24" reflector, photos) "Bluing around crater. Visible on monitor, but immeasurable in photos" NASA catalog weight=5. NASA catalog ID #1125
On 1898 Apr 07 at UT 22:30 Pickering (Cambridge, Mass, USA, 15" refractor?) observed in Schroter's valley and it's vicinity "Variations in vapor col. Lge. gap in main column near edge of C. Gap not previously seen, but fine lines crossing it had. E is still most conspic. (time est. fr. col. given)". The Cameron 1978 catalog ID=298 and weight=3. The ALPO/BAA weight=2.
On 1980 Sep 25 atUT 20:20-22:14 P. Moore (Selsey, UK, 15"? reflector, seeing=III) found that Mons Pico was bright and had a reddish glow to its south west. The Cameron 2006 catalog ID=111 and weight=0. The ALPO/BAA weight=1.
On 1980 Sep 25 at UT20:20-22:14 P. Moore (Selsey, UK) noticed that the central craterlet was more visible in red than in blue. There was also a streak on the floor that was "shifted to S & W." The floor was dark and Mons Pico was bright. Peters found Plato's floor (and central craterlet) to be dark, and darker in blue than in red, however he was suffereing from spurious colour at his observing site. Cameron 2006 catalog ID=111 and weight=0. ALPO/BAA weight=1.
On 1980 Sep 25 at UT 20:20-22:14 Peters (Kent,UK, x240 and x120, seeing=III) observed Proclus to have an orange tint, however there was a lot of spurious colour in the area. The Cameron 1978 catalog ID=111 and weight=0. The ALPO/BAA weight=1.
2004 Aug 31 UT 22:30-22:35 C. Brook (Plymouth, UK) looked at Gassendi and noted a slight chestnut brown colouration in the dark area on the crater floor to the north of the central mountain leading to Gassendi A. It lasted for about two minutes during 22-30 hrs UT to about 22-35 hrs UT (observer unable be more precise). Used 60mm OG x120. Seeing quite steady trans good. Checked Gassendi again at 23hrs UT to 23-05. No sign of colour. Also area mentioned earlier seemed lighter now. No colour on Aristarchus. Plato floor dark -no sign of craterlets. Seeing good with just slight tremor. Trans good 60mm OG x120 used. The ALPO/BAA weight=2.
East of Picard (56E, 15N) 1877 May 29 UT 00:30 Observed by an unknown observer (in England?) "Bright spot. (nr. sunset, should normally be faint? as in Kuiper atlas where it is invisible.)" NASA catalog weight= 3. NASA catalog ID #191.
Plato 1965 Sep 12 UT 05:00 Observed by McCord (Mt Wilson Observatort, CA, USA, 60" reflector+spectrometer) "line depth ratios in spectra a/b (H), c/d (K) were abnormally high compared with 23 other areas, but not quite as pronounced as other areas on other dates." NASA catalog weight=5 (very high). NASA catalog ID 895. ALPO/BAA weight=5.
Mare Crisium 1973 Mar 20 UT ~19:55 Robinson (Devon, UK) patches clearer in a red filter than in a blue filter. This is unlikely to be a TLP, more likley something to do with effects in our atmosphere, but is worth checking out, just in case. ALPO/BAA weight=1.
In 1962 Sep 16 at UT08:05 Spirad (Victoria, B.C., Canada, 48" reflector) obtained a spectrum with a UV emission, in H & K lines compared to Jupiter and Mars. II-AO plates, 6A/mm dispersion. Fraunhofer lines much shallower than planetary ones. (whole Moon). The Cameron 1978 catalog ID=770 and weight=5. The ALPO/BAA weight=4.
On 2013 Dec 19 N. Longshaw (Oldham, UK, Seeing III, TAK FS 78 APO Refracror) observed a diffuse area east of the central peak of Geminus, to be sepia/brownish tint. The ALPO/BAA weight=3.
On 1988 Jul 31 at UT 07:09-08:10 D. Darling (Sun Prairie, WI, USA, 12.5"reflector, seeing=7/10 and T=3) did not detect the dark region on the south east floor of Proclus (the TLP from a few days earlier), but did see 2 "linear mounds". The Cameron 2006 catalog ID=335 and the weight=0. The ALPO/BAA weight=1.
On 1959 Nov 17 at Ut 22:00 an unnamed observer saw a light in Plato. The Cameron 1978 catalog ID=725 and weight=1. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT07:03-07:27, R. Manske (Sun Praire, WI, USA, 1 "refractor) found the colours pink and blue on Aristarchus, like the previous day, however this time there was also an orange tinge on the "back"" (North?) rim of Sinus Iridum and the same too on mare Crisium, all the way past Plato, in the direction of Cassini. This colour was not seen at higher magnifications. The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on Cassini all the way past Mare Imbrium edge, Plato etc - maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on Mare Imbrium edge all the way past Plato upto Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on Plato all the way past Mare Imbrium edge upto Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1" refractor) saw orange on the north? wall of Sinus Iridum and over a large part of the north of Mare Imbrium - "maybe atm. At high power (8mm eyepiece) & no filter. Saw no hint of color (due to smearing at high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1963 Nov 04 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral line dpeth anomaly? The cameron 1978 catalog ID=781 and weight=5. The ALPO/BAA weight=4.
Plato 1971 Apr 13 UT 03:30-04:30 W. Cameron (Greenbelt, MD, USA, 36" reflector & 6" grating) "spectrum obtained showed an extra absorption line at 4908+/-4A & possibly another. No other of 6 spectra of other features on the plate show it. No other of 20 spectra of Plato, including another on the same nite show it. Further reduction & analysis remain to be done." NASA weight=5. NASA catalog ID=#1291. ALPO/BAA weight=5.
Plato 1965 Sep 13 UTC 05:40 McCord (Mt Wilson, CA, USA, 60" reflector with spectragraph) - "Line depth ratio in spectra a/b (H), c/d (K) were abnormally high compared with 23 other areas, but not quite as pronounced as other areas on other dates." NASA catalog weight=5 (very high), NASA catalog ID #895.
Aristarchus 1987 June 14 UT 04:43-08:00 Observed by Curtis, Jacobs, and Manske (Yanna Research Station, Carl A. Fosmark Jr. Memorial Observatory, Madison Astronomical Society, WI, USA, 17" f4.5 Dobsonian and the 8" f10 SCT Celestron) "On the night 13/14 June 11:42 P.M. to 3:00 A.M. local time or 14 June 04:43 to 8:00 UT. Three people witnessed this event and all three of them observed with three different telescopes to rule out instrumental aberration. These three pople were members of the Madison Astronomical. The three observers involved are Keith Curtis, Tom Jacobs and Robert Manske. Keith Curtis took detailed notes of the event as he observed it. The observations were made at the Yanna Research Station, Carl A. Fosmark Jr. Memorial Observatory of the Madison Astronomical Society following the annual picnic. This is MAS dark sky site and is located near Brooklyn, Wisconsin. As they were observing the night sky they saw the Moon rising and noted a strong orange color due to atmospheric effects. Approximately 1/2 hour after the Moon rise they decided to turn one of the telescopes on it. It was at 04:43 UT, it was noted by Keith Curtis that as the Moon rose it began to loose the horizon color effect and return to its normal color, but he found that the red color was not leaving the crater Aristarchus. At first they all thought this was an atmospheric effect but decided it was a real event since they detected a second crater (Euler) showing red color on its rim. Keith Curtis said that the red color was very strong on the Western rim of Aristarchus with a strong blue/green or aqua green on the Eastern rim. Keith also reported that the glow opaque enough to prevent viewing of the interior of crater Aristarchus. He said they observed until 3:00 A.M. daylight saving time or 8:00 UT. and the red glow was still visible when they ended their observing session. Robert Manske description of the event was that he saw two craters glowing a strong red and blue giving it a rainbow effect. He said that the red glow was so strong he was unable to see the craters underneath during the entire observing session. Concerning the orientation of the red and blue was on the crater he stated that he did not remember since he failed to take any notes. Concerning whether there was any difference in appearance when they observed it with the 17" f4.5 Dobsonian and the 8" f10 SCT Celestron. He said that he could not detect any difference to the lunar formation or the color on it regardless of which telescope he used. He did mention that as the Moon was rising it had the appearance of one large Maria in the center of the disk. This illusion disappeared as the Moon rose higher into the sky. When talking to Tom Jacobs he said that he remembered that he did not see anything on the Moon until 1/2 hour after Moon rise. He said that he remembered that the entire Aristarchus region had a strong reddish or pinkish color. All three witness all reported variations in the type of color they were seeing. This would indicate that individuals color perception is a major factor during a color event. Keith Curtis saw a very strong coloration around the rim of the craters, where Robert Manske saw the entire region covered by this red and blue coloration and he could not see the interior of the craters underneath. Tom Jacobs reported that the glow covered the entire crater but he could see the crater underneath it. The Moon never achieved a height greater than 21 degrees so it could be that what the observers saw was caused by the Earths atmosphere. Further details can be found on the following web site: http://www.ltpresearch.org/ltpreports/ltp19870614.htm " ALPO observational report. Cameron 2006 catalog ID=303 and weight 5. ALPO/BAA weight=3.
Plato 1965 Sep 13 UTC 07:20 McCord (Mt Wilson, CA, USA, 60" reflector with spectragraph) - "Line depth ratio in spectra a/b (H), c/d (K) were abnormally high compared with 23 other areas, but not quite as pronounced as other areas on other dates." NASA catalog weight=5 (very high), NASA catalog ID #895.
On 1993 Dec 31 at UT 05:00-07:40 S. Beaumont (Cambridge, UK, 12" reflector) "saw a patch of hazy light to NW (from c.p. alpha) at 0550 craters B & J shadow of alpha had not reached E wall yet, but at 0536 it did. Alpha > at 0550. Craters B & J to SE had faded, vanished at 0630. Hazy patch remained around peak, alpha low mainly to NE like a comet's tail. Slightly reddish fringe to E wall. (shown in sketch)". The above has been quoted in full from the Cmeron catalog because the catalog desription is slightly ambiguous and any attempted summary might make the description more unreliable. The cameron 2006 catalog ID=470 and the weight=3. The ALPO/BAA weight=2.
Cassini/Tycho 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho appears brighter than Cassini bright spot in red filter. In violet filter Tycho and Cassini bright spot appear equally bright. (Tycho and Cassini bright spot in Deslandres - added at bottom of report?). 2.5" refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=1.
Tycho/Cassini 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho appears brighter than Cassini bright spot in red filter. In violet filter Tycho and Cassini bright spot appear equally bright. (Tycho and Cassini bright spot in Deslandres - added at bottom of report?). 2.5" refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=2.
Aristarchus 1964 Aug 26 UT 02:00-03:00 Observed by Genatt, Reid, (Greenbelt, MD, 16" reflector, x360, S=P-G), and Lindenblad (Washington, DC, USA, 26" refractor) "Red and Blue bands. Grew thinner & shorter. Alerted Naval Obs. One obs. tho't he saw Phenom. but not sure. (confirmation ?). (prof. astronomers, but not lunar observers)" NASA catalog weight=5 (very high). NASA catalog ID #844. ALPO/BAA weight=3.
Atlas 1954 Mar 23 UTC 00:00? Observed by Delmotte (France?) "Violet tint in crater" NASA catalog weight=3 (average). NASA catalog ID #562.
In 1957 Feb 10 at UT 22:00 an unnamed observer repirted a TLP somewhere on the Moon. The reference for this comes from: Palm, A. 1967, Icarus,& (2), p188-192. The cameron 1978 catalog ID=662 and weight=0. The ALPO/BAA weight=1.
Aristarchus 1979 Nov 07/08 UT 23:10-00:00 Observed by R.H. Ricketts (Lewis, Sussex, UK, 10" reflector, x300, Seeing Antoniadi II) - obscuration and colouration seen. ALPO/BAA weight=2.
Proclus 2001 Nov 04 UTC 07:00-07:43 "Robin Gray of Winneucca, Nevada, U.S.A. reported a contrast effect and brightening in the crater Proclus. Using a 15.2 cm refractor he conducted a Moon blink search with Wratten 25a and 38a blue filters. His report goes as follows: Moon Blink carried out. In Red 25 Proclus looked nearly the same as in white light. Through the Blue 38a filter, however, only the brilliant lit south east wall was clearly visible. The northeast wall was very dim with this filter. With no filters the NE and SE wall were brilliantly lit, the SE wall was almost as bright as Aristarchus. A thread like strip along the NW wall, possibly the rim of the crater, was also brilliantly illuminated. The interior of the crater was a featureless stygian black with the exception of a brilliant (intensity 9) thread of light that ran parallel to the illuminated east wall. Whether this was an L.T.P. or an optical effect of atmospheric turbulence is unknown, did not see anything similar elsewhere along the terminator though" ALPO/BAA weight=3.
On 1979 Nov 08 at 00:16UT P.Madej (Huddersfield, UK, 6" reflector, x48 and x110, seeing II and transparency very good) detected a small faint orange spot, close to the centre, but not at the centre. Spurious colour was visible on the northern flank of Aristarchus. The Cameron 2006 catalog ID=74 and weight=3. ALPO/BAA weight=2.
Plato 1886 Nov 14 UT UT 21:45 Observed by Lihou (France?) "Brilliant band N-S, area marked G in NE was only slightly visible, poorly defined. Drawing (there were rays on the floor)." NASA catalog weight=3 (average). NASA catalog ID #253.
On 1981 Oct 26 UT 20:44-21:14 M. Mobberley (Bury St Edmunds, UK, 14" Cassegrain, seeing III) noticed an ~100deg wide fan on the floor of Theophius, radiating on the central peak upto the surrounding base of the wall next to Cyrillus crater. This fan had a hint of yellow/red. The observer did not consider this to be abnormal - there was certainly no loss of focus here as far as the observer was concerned, and no mention is made of this effect in later observations that night. Plenty of spurious colour was reported. The ALPO/BAA weight=1.
Aristarchus 1966 Aug 05 UT 05:22-05:38 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x93, x125, x281, S=4, T=5), "S. part of floor was granulated & est. at 6 deg bright; faint yellow-brownish tint. Rest of crater 8 deg bright white."NASA catalog weight=4 (high). NASA catalog ID 963.
In 1937 Apr 29 at UT 09:30 Firsoff (Glastonbury, UK, 6" reflector and filters) observed a slight greenish colour (Cameron says colour of ground? no TLP?). The Cameron 1978 catalog ID=420 and Weight=4. The ALPO/BAA weight=3.
Plato 1966 Aug 05/06 UT 23:37-02:58 Observers: Corvan, Moseley (Armagh, N.Ireland, 10" refractor, x280) and Ringsdore (England, 8.5" reflector) "Several red glows at different places at different times. Each lasted a few min. (not confirmed by Ringsdore. Given as 8/4 in MBMW) NASA catalog weight=4, NASA catalog ID=#964. ALPO/BAA weight=2.
On 1958 Nov 01 at UT 00:00 a TLP was seen on the Moon (location and observer not given). The Reference for this is Palm, 1967. The Cameron 1978 catalog ID=702 and weight=0. The ALPO/BAA weight=1.
On 1958 Jul 14 at UT 21:00 Classen (Pulsnitz Observatory, East Germany, 8" refractor) observed Kepler to be 0.5 magnitudes brighter than Aristarchus, normally it is the other way around with Aristarchus being 0.3 brighter than Kepler. The Cameron 1978 catalog ID=1084 and weight= 3. The ALPO/BAA weight=2.
Theophilus 1965 Jul 18 UTC 08:52-09:01 Observed by Cross, Ariola (Whittler, CA, USA, 19" reflector, x450, S=4, T=3) "Red spots; ruby red within a pink area on c.p." NASA catalog weight=5. NASA catalog ID #885. ALPO/BAA weight=4.
1999 Jan 07 UT 01:57 C. Brook (Plymouth UK, 65mm refractor, x125, seeing good) found this mountain unusually dull. In contrast, Mons Pico, Montes Teneriffe, Montes Spitzenberg, were all normal. ALPO/BAA weight=1.
Plato 1825 Apr 08 UT 01:00 Observed by Gruithuisen (Munich, Germany) "West part of crater brighter than east part". NASA catalog weight=4. NASA catalog ID #106. ALPO/BAA weight=1.
Aristarchus 1964 Aug 28 UT 04:30-04:50 Observed by Bartlett (Baltimore, MD, USA, 4" reflector x240) "Faint blue-viol. radiance on EWBS; dark viol. on nimbus. S.floor dull, 6, granulated, distinct yellow-brown; rest of crater 8 bright. NASA catalog weight=4. NASA catalog ID #847. ALPO/BAA weight=2.
Alphonsus 2002 Sep 27 UT 00:00-02:15 Observed by Clive Brook (Plymouth, UK) "Central peak was bright 00:00 UT but had faded by at least 2 deg on the Schroter scale - no colour seen. Observer continued observing until 02:15 UT but central peak had dimmed considerably by then"
On 1989 Apr 26 at UT 10:22-10:44 D. Darling (Sun Praire, WI, USA, 3" refractor, x36-x140) found that the eastern half of Plato crater was dark - and he checked this using several eyepieces. moderate magnification resolved the dark region into bands, but too high a magnification (x140) made the bands dissappear. The Cameron 2006 catalog ID=362 and the weight=0. The ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA, 3.5" reflector, x160, Seeing-very good) suspected blue tinge on north west rim and brown/red on south east rim of Aristarchus crater + focus was slightly difficult. No similar colour effect seen on other craters. Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA, 3.5" reflector, x160) found that Clavius had a "D" shaped crater on its outskirts that made it appear to have a ridge crossing through it. Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1981 Oct 18 UT 22:14022:16 M.Mobberley (Bury St Edmunds, UK, 14" Cassegrain, seeing variable, transparency misty) found that the central craterlet on the floor of Plato was not visible, despite it being visible under similar colongitudes on other nights. Might be due to observing conditions, but observer suspicous. At 02:08 the observer comments that the central craterlet was ellusive, and at 02:42, though it is uncertain whether they regarded it as suspicous still at this stage? ALPO/BAA weight=1.
Triensecker Rille 1915 Jul 03 UTC 00:00? Observed by Markov (Russia) "Several spots changed their shapes compared with Gordeenko's depiction on 5/23/12 see #339; which cannot be explained by light variations." NASA catalog weight=3. NASA catalog ID #356.