On 1969 Oct 14 at UT 00:00-00:30 Celis et al. (Valparaiso, Chile, seeing=good and transparency=good). observed Aristarchus and found it to be: "Scintillating in irreg. way. Pulses of 1m each time changing with normal & irreg. periods. Best time to see this is 2-3d age. Brightenings comparable to 7.0-7.5 mag. stars, at age 2.2d;7.6-8.0 mag. at age 3.0 & 8.5-9.0 mag. at 4.2d. Moon obs. from age 1d to 62d with several refr. & refl. in program of obs. of scintillation in ashen light. (Atmospheric?)". The Cameron 1978 catalog ID=1203 and weight=1. The ALPO/BAA weight=1.
On 1981 Jul 06 at UT01:49 Hobdell (St Peterburg, FL, USA, 2.4" refractor) saw a yellow flash from Bullialdus in earthshine. ALPO/BAA weight=1.
On 1822 Jan 27 at UT 20:00? F. Struve (Pulkovo Observatory? Russia) observed near Aristarchus an 8th magnitude star-like point. Seen through overcast! (Klado gave date as 1821 but must be in error according to cameron). The Cameron 1978 catalog ID=95 and the weight=4. The ALPO/BAA weight=2.
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 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 1794 Mar 07 at UT 20:00 Stretton and Wilkins (England, UK) observed Aristarchus appearing as a light like a star in Earthsine to the naked eye(independent confirmation according to Cameron?). The Cameron 1978 catalog ID=73 and 74 and the weight=5. The ALPO/BAA weight=1.
On 1967 Apr 15 at UT 19:15-21:00 Classen (Pulsnitz Observatory, East Germany, 8" refractor) found that Aristarchus was very bright and the atmospheric seeing was very good until 21:00UT. Nothing unsual was seen on 16th and 17th April. Cameron reports that this was the first TLP seen by this group. The Cameron 1978 catalog ID=1022 and the weight=3. The ALPO/BAA weight=2.
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.
On 2012 May 26 UT21:21 J. Moeller (Syracuse, NY, USA, using a Konica Minolta DIMAGE Z5 digital camera, f/7.1, 1/250 sec exposure, ISO-50, 69mm focal length, digital zoom x3) captured a hand held image of the Moon in daylight. On the SW limb of the dark side of the Moon a bright spot can be seen. This has a brightness comparable to that of Mare Serenitatis. There is also a fainter dark blurred marking further inside the dark side. ALPO/BAA weight=1.
Agrippa 1966 Nov 19/20 UTC 23:58-00:14 Observed by Bartlett (Baltimore, MD, USA, 5" reflector x283, S=4, T=5) "Faint bluish tinge seen at base of NW wall beneath landslip" NASA catalog weight=4 (high). NASA catalog ID #995.
Cassini E 2002 Dec 11 UT 16:30-18:46 Observed by Knott (Liverpool, England, 216mm Newtonian, x216, red and blue filters used) seeing III, transparency good) "Observations carried out of the area extending from the Alpine Valley to the Crater Cassini. At 17:12 a pin point bright flash was seen NW of the rim of the crater E in white light. A 2nd pin point flash was also seen at 18:18, this time thru a blue filter. The 2nd flash was also seen on the NW rim of the crater E. The observer does not think this was a TLP as the seeing was III, but the flash was so bright as to be startling. Other peaks within the Alps were bright but were much less so in red and ble filters, where the rim of the crater E. NW edge was very bright in all filters, including white light. Incoming cloud prevented further observation." BAA Lunar Section report.
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 and limb 1967 Apr 17 UTC 21:30 Observed by Wise (England, 6.5" reflector, x90) "3 dark patches (Alphonsus) prominent. Suspected red patch (blink ?). (indep. confirm. of Cross 1h later?)." NASA catalog weight=3 (average). NASA catalog ID #1024.
Plato 1967 Apr 17 UTC 21:30 Observed by Wise (England, 6.5" reflector, x90) "Suspected a blink, (red?)" NASA catalog weight=2 (low). NASA catalog ID #1025.
On 1967 Apr 17 UT 21:30 Observed by Wise (England, 6.5" reflector, x90) saw a brilliant object nr. E(ast. ?) limb (West Lim IAU?) for 15m. Check on star maps neg. (indep. confirm. of Cross 1h later?)." NASA catalog weight=3 (average). NASA catalog ID #1024.
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 (high). NASA catalog ID #129. ALPO/BAA weight=3.
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.
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 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.
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.
On 1988 Feb 25 at UT20:00? P.W. Foley (Kent, UK, 12" reflector) found that Aristarchus was very bright (especially in the UV end of the spectrum) despite other features not being seen in Earthshine. The cameron 2006 catalog ID=318 and the weight=1. The ALPO/BAA weight=1.
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 1995 Sep 03 at UT19:40-20:15 P. Moore (Selsey, UK, 15" reflector at x400) observed that the floor of Plato was much darker than he would normally expect and futhermore no interior craterlets were seen. there was however a white patch that was barely visible at the location of the central craterlet should have been. G. North (UK) attempted to observe nut the Moon was too low and seeing terrible. F. Doherty reported Plato normal. Cameron 2006 catalog ID=475 and 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 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.
Plato 1949 Mar 09 UT 02:00-03:00 E.J.Reese (6" reflector x240) and one hour later T.R.Hake (5" refractor x300) both unable to see any detail on the floor of Plato, despite both being able to see a "difficult to see" cleft near to the crater Connon. Reese was able to see detail under similar illumination back in 1948 and 1947 and saw the floor craterlets in Plato clearly then. ALPO/BAA weight=1.
On 1989 Feb 15 at UT 03:15-03:30 M. Dixon (Palenque Ruins, Mexico, 7x35 binouculars) observed a point of light that was very bright in or near Mare Humorum. It was visible for 5 minutes then vanished. The Cameron 2006 catalog ID=353 and weight=1. The ALPO/BAA weight=1.
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.
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.
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.
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.
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 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.
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.
On 1980 Jul 22 at UT20:08-21:50 G.North (Sussex, UK, 8" reflector, x144 and x207, seeing III-V and transparency fair) suspected an obscuration on the north and north west wall. The effect came and went. May have been due to seeing and image contrast? Cameron 2006 catalog ID=101 and weight=1. ALPO/BAA weight=1.
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.
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.
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.
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.
Near Hyginus 1959 Sep 13 UT Observed by Bradford (S.Shields, England, 15"? reflector), Feist, Lovas (Hungary), Moore, Wilkins (Kent, England, 7" refractor, x500) "Obliterated by a hovering cloud (Feist disagrees). Budapest obs. saw a cloud at 21:02:30, lasting 5 m. Moore & Wilkins saw burst of light & dust cloud at 21:02:35 (confirm.) Drawing by Lovas." NASA catalog weight=5 and catalog ID #722. The ALPO/BAA weight=1.
Littrow, 1959 Sep 13 UT Observed by Bradford (S.Shields, England, 15"? reflector), Feist, Lovas (Hungary), Moore, Wilkins (Kent, England, 7" refractor, x500) "Obliterated by a hovering cloud (Feist disagrees). Budapest obs. saw a cloud at 21:02:30, lasting 5 m. Moore & Wilkins saw burst of light & dust cloud at 21:02:35 (confirm.) Drawing by Lovas." NASA catalog weight=1 and catalog ID #722. The ALPO/BAA weight=1.
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.
On 1984 Jan 14 at UT 20:00 P. Moore (Selsey, UK) observed that Aristarchus was brighter than it normally is at sunrise. No quantitative measurements were made though. The Cameron 2006 catalog ID=238 and weight=3. The ALPO/BAA weight=1.
Herodotus 1966 Nov 24 UT 21:50 H.Hill (UK, 7.25" reflector, x240), seeing 4-6/10, transparancy 4/5) sketched a central white diffuse patch inside the floor of the crater, with a size of about 1/7th the diameter of the crater. The eastern edge of the white patch was encroached by the shadow of the eastern rim. ALPO/BAA weight=3.
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.
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.
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.
Crick of Belgium 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. 6" reflector used. Seeing=II and transparency=good.
M. Cook of Frimley, "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 extyension - TLP ID=297 and weight=5. Cameron gives the observers confirming this TLP as: M. Cook, G. North and Davies.. 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.
Kepler 1954 Nov 07 UTC 23:20 Observed by Lugo (Caracus, Venezula) "Luminous pts. (MBMW say "bright pt.; just outside E.wall). NASA catalog weight=3 (average). NASA catalog ID #580.
Aristarchus 1919 Jun 10 UT 19:00-19:30 Observed by Lapshin (Russia) a "Greenish-yellow light shone from inside the crater for 1/2 hr. after which it returned to normal. Violet tint on W. bank & surrounding area & the dark color of the saddle & dark spot were distinct. Term. slightly E. of Herodotus. (Ast. E)=IAU W." NASA catalog weight=3. NASA catalog ID #372. ALPO/BAA weight=3.
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.
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.
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.
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.
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.
Aristarchus 1989 Oct 13 UTC 21:00 Observed by Cook (Frimley, Surrey, UK, 20cm reflector (visual and video)) "Aristarchus had what appeared to be a outline of a ghost crater on it's eastern side - quite large and bright". Cameron 2006 extended catalog TLP ID No=378 and weight=5. ALPO/BAA weight=3.
Gassendi 1976 Oct 04 UT 21:30 P. Moore (Selsey, UK, x400, seeing poor) observed redness in the c.p. area. The ALPO/BAA weight=1.
Plato 1981 Jun 15 UTC 21:30 Observed by Amery (Reading, England, 25cm reflector, seeing Antoniadi IV-V) At the 4 O'Clock position on the North West corner?, there was a dark smudge which reached from the floor across and over the wall and onto the terrain outside the crater. Foley, alerted by Amery, saw a dark show-like patch in the crater's north west corner, again lying across the rim. 2006 Cameron catalog extension ID=148 and weight=4. Foley used a 12" reflector and seeing was III-V. ALPO/BAA weight=3.
Plato 1870 May 13 UT 22:00? Observed by Pratt (---), Elger (Liverpool, England), (Gledhill (Brighton, England) "Extraordinary display of lights. 27 seen by Pratt, 28 by Elger, only 4 by Gledhill. (independ. confirm. ?" NASA catalog weight=5 (very good) NASA catalog ID #168. A bit more of a detailed report is as follows: "Upon the 13th of May, 1870, there was an "extraordinary display," according to Birt: 27 lights were seen by Pratt, and 28 by Elger, but only 4 by Gledhill, in Brighton. Atmospheric conditions may have made this difference, or the lights may have run up and down a scale from 4 to 28. As to independence of sunlight, Pratt says (Rept. B.A., 1871-88), at to this display, that only the fixed, charted points so shone, and that other parts of the crater were not illuminated, as they would have been to an incidence common throughout.(30) In Pratt's opinion, and, I think, in the opinion of the other observers, these lights were volcanic." ALPO/BAA weight=4.
Aristarchus 1965 May 15 UTC 01:40-02:15 Observed by Weresuik, McClench, Johnson (Pt. Tobacco, MD, USA, 16" reflector x240, S=F, T=G) and Delano (Massachusetts, USA, 12" reflector). "Crater had color(red?) detected by Trident MB & photos were obtained. There were pulsations. Delano saw E. wall of crater unusually bright (confirm. if at same time)." NASA catalog weight=5 (very good). NASA catalog ID #876.
Bailly 1974 Oct 29 22:00-23:00 Observed by Lord (St Annes-on- Sea, UK), 25cm reflector, x125 & x400,seeing III, transparency 5/5. South west floor was darker in a blue filter than in other filters. Observer thought this was due to a natural green colour here. Had seen this on 3 other occasions under early morning illumination. ALPO/BAA weight=1,
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.
On 1964 Jan 28 at 21:00? Scarfe (UK) obtained spactra showing luminescence? The Cameron 1978 catalog ID=798 and weight=5. The ALPO/BAA weight=3.
On 2002 mar 29 at 02:20-02:38UT C. Brook (Plymouth, UK, 60mm refractor, x120 - no cloud, slight haze, no wind, seeing good) noticed during first part of observing period that Aristarchus was getting steadily brighter, very much brighter than Proclus. This continued until 02:36UT when it dimmed suddenly over a period of about a minute or so. No colour effects seen. ALPO/BAA weight=2.
On 2002 mar 29 at 02:20-02:38UT C. Brook (Plymouth, UK, 60mm refractor, x120 - no cloud, slight haze, no wind, seeing good) noticed during first part of observing period that Aristarchus was getting steadily brighter, very much brighter than Proclus. This continued until 02:36UT when it dimmed suddenly over a period of about a minute or so. No colour effects seen. ALPO/BAA weight=2. Just as an after thought - was it Aristarchus that was varying, or Proclus?
Aristarchus 1967 Dec 16 UTC 22:00? Observed by Farrant (Cambridge, England, 8" reflector) "Crater took on an unusual appearance on inner NE (ast. ?) wall. Showed a very pale blue & the opposite wall a pale red color seen in no other features. Lasted only 10m & survived a change of eyepieces." Seeing=I (Antoniadi). NASA catalof weight=3 (average). NASA catalog ID #1056.
On 1978 Aug 18 at UT 22:00 Coates (England?, UK, 3" refractor, seeing=II) found that the inner bands of Aristarchus were hard to see, this was odd because the seeing conditions were good and he usually sees them? However he did not believe that there was any obscuration going on. The Cameron 2006 catalog ID=37 and weight=0. The ALPO/BAA weight=1.
On 1893 Apr 01 at UT 22:00 deMoraes of the Azores, Portugal, saw a shaft of light projecting from the Moon. Cameron 1978 catalog ID=280 and weight=0. ALPO/BAA weight=1.
Manillus 1955 Aug 03 UTC 21:00 Observed by Firsoff (Sommerset, England, 6.5" reflector, x200) "Maniluus very bright in all colors, especially blue, extraordinarily so" NASA catalog weight=4 (good). NASA catalog ID #602.
Timocharis 1955 Aug 03 UTC 21:00 Observed by Firsoff (Sommerset, England, 6.5" reflector, x200) "Crater was bright in blue, seemed large & diffused." NASA catalog weight=4 (good). NASA catalog ID #602.
On 1978 Aug 19 at UT02:45-04:00 Porter (Naragansetts, RI, USA, using a 6" reflector, Seing = 6/10) noticed blue on the north east corner of Aristarchus and an orange glow on the south east wall. They detected no movement or change in brightness. The observer used both eyes, to make sure it was not an eye defect, and three filters: red Wratten 25, blue Wratten 82 and Violet Wratten 47. Porter found that the colours faded for a duration of 5 minutes and then returned. Their right eye gave a good view and using their left eye they suspected that it was 0.5 steps brighter than the remainder of the crater. The suspected colour remained visible, even under moments of good seeing conditions. The colour eventually faded over time and was eventually gone. Porter reportd seein gcolour here on the following night. Apparently other bright spots showed no colour. Fitton suggests that the filters used confirm that the south east wass was definitely red in colour. The Cameron 2006 catalog ID=37 and the weight=0. ALPO/BAA weight=1.
Aristarchus 1973 Nov 10 UTC 20:00? Observed by Coates (England, 8" reflector x200, Moon at gigh altitude above horizon). "Attracted to crater because of an orange hue extending towards Herod. Has seen this at other times. Thinks not a LTP, but actual color on ground."NASA catalog weight=2 (low). NASA catalog ID #1381.
Observed by Bartlett (Batimore, MD, USA, S=4, T=5) "E.wall? blue glare. He was uncertain @it. Couln't focus it. Herodotus unaffected." NASA catalog weight=4. NASA catalog ID 581. ALPO/BAA weight=2.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th. Cloud-like effect where light had been (on 8th). Cameron 1978 catalog TLP ID No.=139 and weight=3. ALPO/BAA weight=2.
On 1992 Jul 16 at UT 03:32-09:31 D. Louderback (South Bend, WA, USA, 3" refractor, x134) detected yellow on the southern rim of Aristarchus, and the colour looked "darker" through a yellow filter and the region was "duller" than normal. The region was 1 intesnsity step brighter on the 2nd measurement, "on all points in it". The comet tail-like ray had 3 sections and was "mottled" in appearance. Finally the Cobra Head region had possible variations in brightness. The cameron 2006 catalog ID=451 and the weight=3. The ALPO/BAA weight=2.
Copernicus 1975 Jul 24 UT 22:52 Observed by Robinson (Teignmouth, England, 10" ? reflector or 4" refractor?) "Copernicus indistinct in red and blue filters" NASA catalog weight=3 (average). NASA catalog ID #1409.
Fracastorius 1975 Jul 24 UT 22:52 Observed by Robinson (Teignmouth, England, 10" ? reflector or 4" refractor?) "Fracastorius had a blink (red or blue?)" NASA catalog weight=3 (average). NASA catalog ID #1409.
Tycho 1975 Jul 24 UT 22:52 Observed by Robinson (Teignmouth, England, 10" ? reflector or 4" refractor?) "Tycho indistinct in red and blue filters" NASA catalog weight=3 (average). NASA catalog ID #1409.
Aristarchus 1954 Nov 12 UTC 02:20-03:05 Observed by Bartlett (Baltimore, MD, USA, S=5-6, T=3-4) "Blue-violet glare on EWBS & whole length of E. wall. Suspected viol. tint on VA; uncertain @ m" NASA catalog weight=4. This had faded later by 05:07. NASA catalog ID #582. ALPO/BAA weight=2.
On 1996 Jul 31 at 22:40UT P. Moore (Selsey, UK, 15" reflector, x300) noticed a lack of detail in the Cape Agarum area - he would normally have expected to have seen some craterlets. However he would not rate this observation much because the seeing was only III and he does not think that it was an obscuration. However just in case he wanted to record this report in the archives. ALPO/BAA weight=1.
Proclus 1973 Nov 11 UT 20:40-23:05 Observed by Savill (Cambridge, England, 12" refractor, x100?), Young (Yorks, England), Pedler (Bristol, England, 6" reflector?), Livesey (Scotland). "At 100x showed a bright spot in S.part of crater. At 300x was vis. but power too high. In 8-in refr. at 170x, at 2055h 2 spots present. Confirmed by Young. Seeing was improving. At 2104h in 12-in refr. at 260x the lower spot seemed distinctly enlarged & vaporous. Decided it was due to poor seeing. Later the 2 spots were better defined & separated but lower moved away fr. larger one & they seemed more separated than earlier. Obs. ended at 2305h when they decided it was not an LTP. but was 2 craters instead of humps. There were neg. repts. from others at the same time. (there are no craters in Proclus)." NASA catalog weight=2. NASA catalog ID # 1382. ALPO/BAA weight=1.
Schroter's Valley: Cobra Head 1824 Nov 08 UTC 00:00? Observed by Gruithuisen (Munich, Germany) "Mingling of all colors in small spots. Described a violet glimmer near Cobra Head & plateau that spreads; starts just after sunrise. Cameron 1978 catalog weight=4 and catalog ID=103. The ALPO/BAA catalog weight=3.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th. Cloud-like effect where light had been (on 8th). Cameron 1978 catalog TLP ID No.=139 and weight=3.
Plato 1870 Mar 19 UT 00:00? Observed by Gledhill? (halifax, England, 9" refractor) "Same group (of craters) as in Feb. illuminated. (if phase same as Apr. 1970 then date is Mar 19" NASA catalog weight=2 (low). NASA catalog ID #165.
On 1990 Dec 03 at UT23:00-01:30 M.C. Cook (Frimley, Surrey, UK) noticed that the central peak of Aristarchus was quite bright and extended to a circular region in the east in the crater "sprout" area - Cameron suggests that this is Bartletts self defined EWBS area?. Beyond the rim to the east was very bright. However no colour effect was seen in filters. A sketch was supplied. Cameron notes the coincidence of perigee and full Moon. The Cameron 2006 catalog ID is 416 and the weight=3. The ALPO/BAA weight=1.
On 1990 Jan 13 at UT 22:15-23:05 J. Pedler (Bristol, UK, seeing=III and transparency=excellent, no spurious colour) detected a blue region on the north of Aristarchus, varying in sharpness/diffuseness. The crater rim in this region could not be descerned. Eleswhere the crater rim was normal as too were other features. When a Moon blink device was used, no colour blink was detected, however through the blue filter the suspected area was bright and the crater rim indistinct. Whereas through the red filter the area looked perfectly normal. At 22:30UT the effect had vanished and everywhere was normal. The Cameron 2006 catalog ID=388 and the weight=5. The ALPO/BAA weight=3.
Proclus 1956 Jul 25 UTC 06:16-06:33 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=3-5, T=4) "C.p. distinctly vis. within floor shadeo, est. 5 deg bright but no trace of it at col. 122.37deg in Oct, '55(Oct. 4?)." NASA catalog weight=4 (good). NASA catalog ID #645. ALPO/BAA weight=2.
Four bright spots seen in Mare Crisium. There was also peculiar behaviour of the terminator. Source: Midlehurst 1968 catalog TLP ID=16. Ref Web 1962 p62-76. The ALPO/BAA weight=1.
On 1990 Jan 14 at UT 01:14-01:55 M.C. Cook (Frimley, UK, seeing=poor) observed that Aristarchus did not appear normal for this illumination. the northern half of Aristarchus was "2x>" than the southern half of the crater. There were two white patches of apron material near to the crater Herodotus that were 50% of the brightness of the southern half of Aristarchus. Furthermore the southern half of Aristarchus had a circle - "dull patch on inner S wall with a bright point shining through it. (Bartlett's EWBS?)". The Cameron 2006 catalog ID=389 and the weight=4. The ALPO/BAA weight=2.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th. Cloud-like effect where light had been (on 8th). Cameron 1978 catalog TLP ID No.=139 and weight=3.
Daniell 1894 Feb 23 UT 00:00? Observed by Krieger (Germany) "Strong, brownish-red coppery hue." NASA catalog weight=4 and catalog ID #281. ALPO/BAA weight=3.
1894 Feb 23 UT 00:00(?) Posidonius N. Wall observed by Krieger (Germany) "Strong, brownish-red coppery hue." NASA catalog weight=4 and catalog ID #281. ALPO/BAA weight=3.
On 1955 Oct 04 UT 22:00 Dubois and Kozyrev (Crimea, Soviet Union, 50" reflector) observed the following in Aristarchus crater: "Low disprsion (d=.13 whereas on Oct 28 & Nov d=0.03) Spectogram showing emiss. in central part nr. H&K". Cameron says that this is a confirmation of the previous Bartlett TLP? The Cameron 1978 catalog ID= 619 and weight=5. The ALPO/BAA weight=5.
Aristillus 1939 Jul 06 UT 05:00 Observed by Haas? (NM?, USA, 12" reflector?) "Dark area in W. part of floor was I=1.3 but other dates were brighter. or same. yet cond. similar (see # 454, 459 & 461)" NASA catalog weight=4. NASA catalog ID #450. ALPO/BAA weight=3.
Aristillus 1939 Sep 03 UT 05:00 Observed by Haas? (New Mexico?) "Dark area in W. part of floor was I=4.0, comp. with I=1.3, & I=3.7 (see #450, & #454). Used different telescope, but can't explain diff. in albedo, since phase is similar in 2 & dist. from term. similar in all (normal?)." NASA catalog weight=4. NASA catalog ID #459. ALPO/BAA weight=3.
Fracastorius 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth, England) "Blink seen. Floor brighter in red than in blue. Suspects colour is spurious". NASA catalog weight=1 (very low). NASA catalog ID #1410.
Plato 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth, England) "Blink seen. Floors brighter in red than in blue". NASA catalog weight= 1 (very low). NASA catalog ID #1410.
Theophilus 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth, England) "Blink seen. Floor brighter in red than in blue". NASA catalog weight=1 (very low). NASa catalog ID #1410.
Observed by Dachille & daughter (Univ. Park, Pennsylvania, 10.5" reflector, x75) "Flash -- then a brownish - red color patch. Alt. @ 20deg. (MBMW has Oct. 12, but is 13th UT)". NASA catalog weight=5 (very good). NASA catalog ID #674.
On 1979 Jul 14 at UT 00:24-01:10 P. Madej (Huddersfield, UK, 15cm reflector, x35, x52, x73 and x110, seeing IV-V, transparency very good). Note that the observing date was also written as Jul 18th in the original report? Puiseaux was very clear in white light, but could not see the cenrtral peak. The central peak though was visible through a Waretten 15 (yellow) filter. The ALPO/BAA weight=1.
On 1904 Aug 01 at 05:00? Pickering (Echo Mt., CA, USA) UT Plato: "Bright hazy obj., 2" diam. on floor, Obs before & after were normal". The Cameron 1978 catalog ID=318 and the weight=4. The ALPO/BAA weight=3.
Messier A 1951 Oct 20 UT 00:00? Observed by Moore (England) "Brilliant white circular patch in it. has seen it & Messier blurred several times." NASA catalog weight=4 (good). NASA catalog ID #545 Note that the date and time given are probably wrong as the Sun is ~7deg below the local horizon at this time. ALPO/BAA weight=1 to reflect this error.
Aristarchus 1957 Oct 13 UT 07:00?$ W.Haas, according to the 1978 NASA Catalog is supposed to have seen a bright spot of light -- "explosion" in this crater. Confirmation of activity in Aristarchus - Three independent observations within 4 hours. Cameron 1978 catalog weight=5 and TLP ID No.=676. Private comunication with Haas shows that he recorded nothing unusual on the 12th or 13th. Therefore an ALPO/BAA weight of 1 has been given until this matter is cleared up.
Jansen 2013 Aug 26 UT 00:30-01:30 P. Grego (Cornwall, UK, 20cm SCT, x200, seeing II, transparency good) observed a dark patch just east of Jansen D. He had not seen this before. There maybe a depression here hinted at in LOLA ndata. ALPO/BAA weight=1.
Aristarchus 1956 Jul 28 UT 05:20-05:55 Observed by Bartlett (Baltimore, MD, USA, 5" reflector, x180, S=5, T=4) "Vivid blue- viol. gl. on c.p., band across E. floor, & EWBS, E. & NE wall". N.B. The effect had vanished by 07:20UT. NASA catalog weight=4. NASA catalog ID 646. The ALPO/BAA weight=2.
On 1975 Jul 29 at UT 00:00 Fraser (England, 6" reflector, x70) and Howick (England, 3.5" reflector) observed the occultation of 51 Pisc. at emersion - Fraser saw a flash or spike of liht which proceeded emersion of primary by 0.4sec. The 9.0 mag companion appeared some moments later. Howick at 1 km away, with 3.5" reflector noted nothing unusual. Cameron says that no 3rd companion is known. The Cameron 1978 catalog ID=1411 and weight=2. The ALPO/BAA weight=1.
Callipus 1952 Sep 09 UT 21:00-21:20 Observed by Moore (England) "Hazy broad line of light seen fr. NW wall to SE wall over shad. floor. Gone next nite at 0120. He gave low wt. to obs. (sunlight between peaks?)." NASA catalog weight=1. NASA catalog ID #553. ALPO/BAA weight=1.
Aristarchus 1976 Aug 15 UT 23:00-23:45 Observed by Garbott (2) (Bedfordshire, England, 10" reflector x500, seeing Antoniadi I) and by Moore (Sussex, England, 15" reflector, x360, seeing Antoniadi IV) "Noted blue color on N. wall extending toward Herod. Also saw orange color in S. region. Confirmed by father. (similar to many of Bartlett's rept's.), More noted nothing unusual at 2320h." NASA catalog weight=4. NASA catalog ID #1444. ALPO/BAA weight=2.
Stochard of Dublin, Ireland, saw naked eye at 10:30UT on 1862 Nov 12 Aristarchus as extraordinarily bright as a bright spot on the Moon. This was seen in daylight with the waning crescent. Cameron 2006 extension catalog ID=6 and weight=3. ALPO/BAA weight=2.
On 2009 Oct 09 UT11:00-11:04 NASA's LCROSS upper centaur stage, followed 4 min later by the observation spacecraft, is due to impact into a the crater Cabeus in the hope of kicking up some dust and possible frozen volatiles. Note that this description is intended for observers on the date of impact and it is doubtful that any new science could be achieved by re-observing the same area months after the impact. If you are observing on the date of impact, then please observe around 11:00-11:04UT and ignore the predicted times in the headings. However this report is included as techniqcally if something is seen it is a TLP, albeit man-made! For those observing on the date in question here are a few observing tips to maximize the science of your observations: (1) If you are imaging, then please try to obtain images before the impact because you can then subtract these from images taken during the impact and hence show up faint changes that you might normally miss. (2) If you have a spare scope and camera,use this to observe through filters such as UBVR or I, or if you have narrow band interference filters, try observing in say Hydrogen Alpha, Methane, OH, or indeed any volatile that you might expect to see in a comet (the main source of water at the poles). (3) Please try checking the area long after the impact, just in case other effects might trigger a TLP. (4) Please go to some trouble to ensure accurate timings- these will be essential in order to understand the sequence of events - assuming any are seen. Timings can be obtained using a short wave radio or via a GPS. Note that you should always use UT or UTC. (5) Please send any observations that you make into the upload section of the LCROSS campaign observers web site. If you belong to an astronomical society e.g. BAA or ALPO, then do please send copies of your observations to the Lunar Sections of your society or club. (6) Finally this desription will be updated a day or two after the planned impact.
On 2009 Sep 09 UT23:31:43 P.Grego (St Dennis, Cornwall, UK, seeing II- III) suspected a flash south of Cabeus, just beyond the terminator. It was not bright, and lasted a fraction of a second. Thinks it might have been illusory as he saw some fainter flashes (cosmic rays?) during that nights observing session. ALPO/BAA weight=1.
Kepler 1966 DEc 04 UTC 05:10 Observed by de Beraud (Flossmoore, Ilinois, USA, 6" reflector, x360, S=G) "Saw a bright area thru. blue filter but could not see it in red filter. Decided it was a bluish phenomenon." NASA catalog weight=3 (average). NASA catalog ID #1001.
On 1983 Jan 05 at UT22:00 P. Madej (Huddersfield, UK) noticed some colour on Aristarchus. The Cameron 2006 catalog ID=195 and the weight= 2. The ALPO/BAA weight=1.
Aristarchus 1974 Sep 08 UT 04:45-06:30 Observed by Cowan and Johnson (Dublin, TX, 8" reflector, x59, x152, S=7) "Saw a bright luminous, blue, misty cloud on th NE rim. Obscur. for 1st hr. then gave way to pink & features became vis. Cloud was tear-drop shape. No movement to glow. Pink cloud glowed too. Very tenuous by 0130h. (Nakamura says there were no seismic events within several hrs. of this time). Another person saw it without being advised as the where it was." NASA catalog weight=5. NASA catalog ID #1393. ALPO/BAA weight=4.
On 2009 Sep 11 UT00:15-00:20 and 01:00-01:05 C.Brook (Plymouth, UK, 5" O.G., x100, seeing tremourlous but definition improving over time) noticed that the central peak(s) in Alphonsus were brightening gradually. No effect was seen earlier at UT23:30-23:35. One presumes that the effect also occured between these two observing times? The observer suspects that this was not a TLP, but is uncertain. ALPO/BAA weight=1.
On 1878 Oct 18 at UT 21:00? Gaudibert (France?, 4"refractor) observed Webb's white spot on SW border of Wargentin to be brilliant, however this had vanished by Oct 19. The Cameron 1978 catalog ID=204 and the weight=4. The ALPO/BAA weight=3.
Tycho 2006 Jan 22 UT 06:34-06:36 Observed by Fabio Carvalho (Assis, Sao Paulo Brazil, 25cm f/6 Newtonian) "Green colouration seen on a rim of Tycho, effect remained visible for only 2 minutes. Attempts to image it shortly afterwards failed as it had finished by then" An REA-Brasil observational report. ALPO/BAA weight=3.
On 2009 Sep 11/12 UT23:28-00:00 M.C. Cook (Mundesley, UK, 90mm Questar, x80 and x190, seeing II and transparency moderate-poor) observed pink on the north west rim of Tycho and green-blue on the inner SW rim. No sign of colour elsewhere on the Moon except for the S-E rim of Plato that was red. The Moon was about 20 deg in altitude at the time. The effect had gone by the end of the observing period. A simulation of spurious colour in different directions was generated by the BAA Lunar Section and found to possibly account for these colours, although there should have been some strong colours seen elsewhere in Tycho and none were. The BAA/ALPO weight=2.
On 1979 Jul 18 at UT 00:24-01:10 P. Madej (Huddersfield, UK, 15cm reflector, x35, x52, x73 and x110, seeing IV-V, transparency very good). Note that the observing date was also written as Jul 14th in the original report? Puiseaux was very clear in white light, but could not see the cenrtral peak. The central peak though was visible through a Wratten 15 (yellow) filter. The ALPO/BAA weight=1.
On 1878 Oct 18 at UT 21:00? Gaudibert (France?, 4" refractor) observed Webb's white spot on SW border of Wargentin that had been brilliant the previous night, had completely vanished tonight. The Cameron 1978 catalog ID=204 and the weight=4. The ALPO/BAA weight=3.