In 1952 Nov 26 at UT 01:00? Carle (USa, 8" reflector, x700,
seeing = excellent) observed the following in Plato: "Sketch
shows 8 spots -- 5 craters showed interior shad., 1
completely filled, but no others seen despite several hrs. of
study. Spots that should have been seen were missing. poor
seeing converts floor into shimmering shapeless blob. Has
observed it under good seeing & seen nothing on fl. as others
have noted". The Cameron 1978 catalog ID=555 and weight=3. The
ALPO/BAA weight=2.
On 1955 Aug 27 at UT 01:51 McCorkle (Memphis, Tennessee, USA, 6.5"
reflector, x200) observed a 2nd magnitude bright flare on the dark side
of the Moon. This remained steady, fading slightly before abruptly
disappearing. Cameron suggests that this might have been a meteor. The
Cameron 1978 catalog ID=604 and weight=0. The ALPO/BAA weight=1.
Proclus 1976 Jul 06 UT 01:35 Observed by Bartlett (Baltimore, MD, USA,
3" refractor, 40-450x, S=6, T=3) "Nothing vis. on floor (albedo=2 deg?)
(usually features are vis.)" NASA catalog weight=4 (high).NASA catalog
ID #1437.
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.
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.
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.
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.
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.
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 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.
Hyginus Nova 1867 Nov 14 UT 20:00? Observed by Crain, Klein, Eng.
officer (France?, Cologne (Germany), Enland?, 6" refractor?, S=E) "On
13th it was 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.
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.
Tycho 1940 Jul 14 UT 02:00? Observed by Haas (NM? USA, 12"?
reflector) "Luminous marks in shadow, ragged edged & irreg.
shape. E. wall had a milky luminosity" NASA catalog weight=4.
NASA catalog ID #468. ALPO/BAA weight=2.
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.
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 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.
On 1980 May 23 at UT 21:14-21:18 Marco Petek (Porto Alegre,
Brazil) saw in the region of Littrow and an area of dark mare
south west from Littrow to Argaeus, abnormal darkness, and a
rapid change of form. He also 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.
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.
Observed by Chernov (Russia) "A periodic change in shape of
small dark spot at bottom of round spot further N. adjacent to inner
wall. It was larger than in proceeding months at same sun elev."
NASA catalog weight=2 (low). NASA catalog ID #669.
The UT given in the Cameron 2006 extension catalog are: 20:58, 23:25-
02:20 and 01:40-04:00, however it is not clear what UT applies to which
of the observers or the two features reported as having TLP on that
night. On 1984 Feb 12-13 Marshall (South Anerica, seeing=III-II)
noticed that Moltke was very bright with a fuzzy violet hue - he had
never seen it like this before. Cameron 2006 catalog extension TLP ID=
240 and weight=2. ALPO/BAA weight=3.
The UT given in the Cameron 2006 extension catalog are: 20:58, 23:25-
02:20 and 01:40-04:00, however it is not clerr what UT applies to which
of the observers or the two features reported as having TLP on that
night. On 1984 Feb 12-13 Marshall (South Anerica, seeing=III-II) saw
initially no craterlets in Plato, despite the Moon being at a high
altitude. At 01:45UT the northwest corner of Plato was red. Again no
other craterlets showed. He found the surrounding wall to be too bright
and this was confirmed by Crater Extenction Device readings and had
problems focussing on the crater. By 02:00-02:50UT he noticed
variability in the visibility of the craterlets. By 03:48UT the central
craterlet was much brighter than before and the crater doublet had
brightened but the southern craterlet was still invisible. Cameron
comments that Marshall was a very experienced observer. A. Cook (of
Frimley, UK) obtained a photodiode line scan image of Plato. The
brightness of the north west wall was brighter than the bright area on
the west wall. Marshall and Mosely both saw a dark area on the floor of
Plato close to the south wall (from clock position of 11 o'clock. There
was a prominent white spot on the floor and the central craterlet was
seen, but only under good conditions. Mosely does not discuss the west
and north west wall brughtnesses that were seen earlier by Cook and
Marshall. Cameron 2006 catalog extension TLP ID=240 and weight=2.
ALPO/BAA weight=3.
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.
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.
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.
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.
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.
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.
Plato 1870 May 10 UTC 22:00 Observed by Birt (England) "Extraordinary
display of lights. Says not effect of sunlight" NASA catalog weight=4
(high). NASA catalog ID #167.
Plato 1982 Jun 02 UT 22:00. Mobberley could not see the
central craterlet on the floor of Plato tonight. Foley notes
that he could only just see the central craterlet on nights of
2-5th Jun and it was of reduced in brightness from normal.
North reported that the floor seemed nearly black, but
brighter in a green filter (x144 magnification used). All
three observers compared the Plato area to other areas for
reference. All the above seems normal, apart from the floor
being brighter in the green filter. Cameron 2006 extension
catalog ID 170 and weight=5. BAA/ALPO 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 1982 Apr 04 at UT 23:30-00:25 P. Madej (Huddersfield, UK, 7cm
refractor & 16cm reflector) noticed the TLP in his refractor
first of all at x25. So stepped up the magnification to x111 and
found the crater brightness not what he was expecting. He tried
different filters but found no difference in brightness. With
the 16cm reflector however some changes in brightness were
dected. The crater has a very pale yellow colour and it was
slightly darker than Lacus Somniorum. P. Foley tried to confirm
at 00:09 but the crater looked normal then. The Cameron 2006
catalog extension TLP ID is 167 and weight=3. ALPO/BAA weight=2.
Furnerius 1961 May 26 UT 02:20-03:00 Observed by Cameron (Aldephi, MD,
USA, 3.5" Questar reflector x160, S=G) "Crater stood out like
glittering points (small craters on rim?). Many features examined but
effect seen only on this crater and Stevinus (Specular refl. from flat
surface?)" NASA catalog weight=1 (very low). NASA catalog ID #738.
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.
Stevinus 1961 May 26 UT 02:20-03:00 Observed by Cameron (Aldephi, MD,
USA, 3.5" Questar reflector x160, S=G) "Crater stood out like
glittering points (small craters on rim?). Many features examined but
effect seen only on this crater and Stevinus. (Specular refl. from flat
surface?)" NASA catalog weight=1 (very low). NASA catalog ID #738.
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.
Plato 1980 May 25 UT 21:33-22:54 Observed by North (Seaford,
UK, seeing III-IV, 460mm Newtonian) Definite strong reddish
glow along NNW border, definitely much stronger than spurious
colouration and always visible when telescope moved in RA and
Dec to eliminate possible chromatic aberation effects in the
eyepiece. Effect ended by 21:54 UT. BAA Lunar Section Report.
ALPO/BAA weight=2.
Plato 1870 May 11 UTC 22:00 Observed by Birt (England) "Extraordinary
display of lights. Says not effect of sunlight" NASA catalog weight=4
(high). NASA catalog ID #167.
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.
Aristarchus Area 2004 Nov 22 UT 04:58-05:49 Observed by Gray
(Winemucca, NV, USA, 152mm f/9 refractor, seeing 4-5, trasparency 4-5,
x114, x228) "Blinked Herodotus with Wratten filters Blue 38A and Red
25. The illuminated west crater wall stood out brilliantly in blue
light, much more so than in white light. This was true also of
Aristarchus. Red light did not increase contrasts in Herodotus any more
than they were in white light. Shadows in Herodotus appeared as black
as the night west of the terminator and remained that way throughout
the observing period. No TLP seen in Herodotus tonight. A possible TLP
was seen to the west of Herodotus near the terminus of Schroters
Valley. It was noted at the beginning of the observing period that
there were four very bright spots of light, one near the end of
Schroters Valley, the other three grouped together a little farther
north. Although not far from the terminator they were definitely east
of it. It was noted that all of them nearly vanished in the Blue 38A
filter while Aristarchus and the rim of Herodotus gleamed brilliantly.
At 5:19UT it was noted that the most brilliant of the four lights, the
one near the terminus of Schroters Valley, had faded almost to
invisibility in white light. When first seen it had been brighter than
Aristarchus. It remained very dim after this through the remainder of
the observing period, and was unchanged at 7:35-7:49UT when I again
examined the area. The other three bright spots remained brilliant and
unchanged."
On 2016 Jun 17 UT 05:00 A.Anunziato (AEA, Argentina Meade ETX
105, seeing 7/10, sketch made) observed a very tiny light spot
where the shadow from topographic relief to the south of
Vallis Schroteri nerges into the crater rim shadow on the
floor of Herodotus. There should be no light spot here.
ALPO/BAA weight=1.
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.
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.
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.
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.
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.
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.
Plato & Pico 1984 Mar 14/15 UT 19:18-01:48 Observed by Foley (Kent,
England, 12" Reflector seeing I, Transparency Very Good) "Obscuration
and colur seen on Plato and colouration and brightness seen on
Piton (CED used)" BAA Lunar Section Report.
Plato & Pico 1984 Mar 14/15 UT 19:18-01:48 Observed by Foley (Kent,
England, 12" Reflector seeing I, Transparency Very Good) "Obscuration
and colour seen on Plato and colouration and brightness seen seen on
Piton (CED used)" on and Colour" BAA Lunar Section Report.
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.
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.
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.
Aristarchus 1972 Oct 19 UT 17:55-18:05 Observed by Gabriel (Wettern,
Belg. 4" refractor, x166, S=E), Hitchens (Stamine Locks, Eng., 8.5"
reflector, S=F), Peters (Kent, Eng., 10" relector), Amery (Reading,
Emg. 10?" reflector), Flynn (england, 12" reflector) "At 17:55h noted
bluish-purple color area just N. of Aris. & it reached just over N.
wall, lasted 2 min. At 1800h color noted again, but not as brilliant &
gone at 1801h. Seen again at 1804h & now was on E. (ast. ?) wall,
lasting M 1min. Sure of its reality but not of lunar origin. All gone
at 1805h. Hitchens noted a very bright spot on W. (IAU?) wall between 2
prominent bands. Blue darkening in W#38 filter, neg. in W#8,25,58 &
integrated light. Other areas gave similar but lesser effects. May be
due to damp geletin. (Moore thinks not LTP but many obs. have rep't
blue in Aris.) Others obs. later (2100, 2215-2300, 2305h) & noted
nothing unusual." NASA catalog weight=2 (low). NASA catalog ID #1346.
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 1870 May 12 UTC 22:00 Observed by Birt (England)
"Extraordinary display of lights. Says not effect of sunlight"
However an article by Nigel Logshaw in the Feb 2014 LSC suggests
that it was probably just normal fine scale spots and streaks on
the floor of the crater. NASA catalog weight=4. ALPO/BAA weight=
1. NASA catalog ID #167.
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.
On 1980 Apr 28, Louderback (South Bend, WA, USA using a 8" reflector
and a 2.5" refractor) observed a very bright reg region on top of the
south west rim of Aristarchus crater. This was on the same side as the
ray system between Aristarchus and Herodotus. Louderback noticed some
chromatic aberation - blue where he had seen the red patch before.
Louderback suspects chromatic aberation was the cause although did not
see red in that region ever again. "Patch was between his observation
points A and C. Point C was 5 points brighter in the red filter than in
the blue." A sketch was made. Cameron suspects that the TLP was real.
Cameron 2006 TLP catalog extension ID=92 and weight=3. ALPO/BAA
weight=2.
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.
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.
Variations in vapor column rising from the Cobra Head feature
(seen on several nights in succession) and also in the visibility of
craterlets A, C, F. Sunrise +2d. (time est. fr. gives colongitude).
Cameron 1978 catalog ID=279 and weight=3. Pickering was observing from
the southern station of Harvard University in Arequipa, Peru.
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.
Aristarchus 1969 Nov 22 UT 18:20-21:13 Observed by D. Cutts
(Chester, Eng., 8.5" reflector, x200), Moore (Sussex, Eng., 12"
reflector x425), Miles (Coventry, Eng. 5" refractor), Delaye and
Jourdran (Marseilles, Fr., 8" reflector) "Pulsating patch on W.
wall between 2 radial bands. Faded by 2000h. Returned to normal.
(Cutts). Miles saw strong pink in whole interior at 2112h.
Strong blink. No blink there at 2210-2212h. Gass., Grim., &
Plato were neg. Delaye & Joudan photog. it as very bright. Moore
got neg. results at 2135. (confirm. of activity?, Apollo 12
watch)." NASA catalog weight=5. NASA catalog ID #1226. 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.
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.
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,
Aristarchus, Cobra Head, 1969 Dec 23 UT 05:19-05:34 Observed by
A.R. Taylor (Buckinghamshire, UK, 8.5" reflector, 240x, Wratten
25 and 80B) Strong blink in crater at 0519. All traces gone by
0534. Could only see in filters, Plato, Copernicus, Gassendi all
normal. Obscur. also in Cob. Head." NASA catalog weight=4. NASA
catalog ID #1230. 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.
Stevinus 1961 May 29 UT 02:45-03:30 Observed by Cameron (Adelphi, MD,
USA, 3.5" reflector, x160, Questar, Seeing=good) "Craters stood out
like glittering points (small craters on rims?). Only anomalies among
many features examined (specular refl. from flat surface?)." NASA
catalog weight=4. NASA catalog ID #738. ALPO/BAA weight=1.
Furnerius 1961 May 29 UT 02:45-03:30 Observed by Cameron (Adelphi, MD,
USA, 3.5" reflector, x160, Questar, Seeing=good) "Craters stood out
like glittering points (small craters on rims?). Only anomalies among
many features examined (specular refl. from flat surface?)." NASA
catalog weight=4. NASA catalog ID #738. ALPO/BAA weight=1.
On 1992 Oct 10 at 18:57-19:04 UT I.S.Brukhanov (of Minsk, Belarus,
using a 6" refractor x40 and x98) saw a star like point inside Plato
crater of similar brightness to the central peak of Alphonsus. The
event lasted 90 seconds before weakening and vanishing completely at
19:04UT. Cameron 2006 catalog extension ID=455 and weight=3.
ALPO/BAA weight=3.
On 1981 Apr 18 at UT 19:50-22:10 M. Mobberley (Suffolk, UK, using a
14" reflector, seeing poor and transparency poor) observed faint-yellow
streaks still visible, but less prominent. Cameron mentions that
Bartlett noticed this colour, but in the south floor of Aristarchus.
Cameron 2006 catalog ID=133 and weight=3. 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.
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.
1837 Mar10 UT 13:46 (19:07 local time) T.G. Taylor (Madras,
India) whilst observing a 9th magnitude star being occulted,
noticed a 6th magnitude nebulous spot where Aristarchus
should be. Had never seen anything quite as bright as this on
previous occasions. ALPO/BAA weight=2.
On 1983 May 15 at UT20:30-21:05 P.W. Foley (Kent, UK, 12" reflector)
was unable to see Aristarchus in Earthshine, though other craters were
clearly visible. However by 21:30 the Cooks could clearly see
Aristarchus. The Cameron 2006 catalog ID=215 and the weight=0. The
ALPO/BAA weight=2.
W.limb 1983 May 15 UT 20:30-21:00 R.Moseley (Coventry,UK, 6"
reflector, x60) observed a faint but extensive brightening of
the W.limb, perhaps a little stronger at PA=80-90 deg. No other
features seen in Earthshine. Observation confirmed br R.Martiott
(Northampton, UK, 8.5" reflector). ALPO/BAA weight=1.
On 1987 May 03 at UT 19:00-19:30 H. Miles (Cornwall, UK, 5" refractor,
x30) found the Earthshine to be both pink and bright with prominent
features clearly visible. A "brilliant" star-like point was seen in
Aristarchus crater. There was another, albeit less bright spot near
Darney-Agatharides. Spots pesisted despite various tests. Foley also
confirmed that the Moon looked pink to him as well. The Cameron 2006
catalog ID=298 and weight=1. The ALPO/BAA weight=1.
On 1987 May 03 at UT 19:00-19:30 H. Miles (Cornwall, UK, 5" refractor,
x30) found the Earthshine to be both pink and bright with prominent
features clearly visible. A bright spot was seen near Darney-
Agatharides. An even more "brilliant" star-like point was seen in
Aristarchus crater. Spots pesisted despite various tests. Foley also
confirmed that the Moon looked pink to him as well. The Cameron 2006
catalog ID=298 and weight=1. The ALPO/BAA weight=1.
On 1991 Dec 09 at UT 22:50 D. Darling (Sun Praire, WI, USA, 3"
refractor, x36) witnessed a flash in Grimaldi crater. Cameron comments
that others had seen a flash there earlier, and there was a meteor
swarm. Fritschel (madison, WI, USA, naked eye observing) detected 3
flashes in Grimaldi and also at the western limb of the Moon. D. Weier
(Sun Praire, WI, USA, 3" refractor, x36) was also observing. The
Cameron 2006 catalog ID=436 and the weight=5. The ALPO/BAA weight=2.
On 1966 Apr 24 at 21:30UT R.Livsey (Scotland, 6" reflector at x275)
observed that Aristarchus was "fluorescent" in Earthshine. It is
uncertain whether the description of "fluorescent" should be involve
this observation being categorized as a TLP, however just for safety it
will be assigned an ALPO/BAA weight=1. This was a BAA Lunar Section
report.
On 1983 May 16 at UT20:35-22:10 P.W. Foley (Kent, UK) noted that
Aristarchus was dull in Earthshine (UT21:36-21:40). The floor was a
luminous rose/violet colour. The Cameron 2006 catalog ID=219 and the
weight=0. The ALPO/BAA weight=1.
On 1987 Mar 04 at UT 19:03-19:47 H. Miles (Cornwall, UK, 5" refractor,
x30, S=clear) found at 19:03 that Aristarchus was exceptionally bright
(even without blocking out the sunlit side of the Moon), being the most
easily seen crater on the Moon, and this was despite the sky not yet
being dark. The crater had faded by 19:20UT and at 19:47UT Earthshine
was no longer visible. CED brightness measurements were made and were
less than usual and the inside of the crater may have had a blue/gray
colour (unclear from the Cameron 2006 catalog description). The Cameron
2006 catalog ID=299 and the weight=2. The ALPO/BAA weight=2.
On 1880 Nov 06 at UT 20:00 an unknown observer observed a TLP at an
unknown location on the Moon. The Cameron catalog has an entry for this
date and time but does not specify the location, the observer or what
was seen. The Cameron 1978 catalog ID=218 and the weight=0. The
ALPO/BAA weight=1.
W.limb 1983 May 16 UT 22:00-23:00 R.Moseley (Coventry,UK, 6"
reflector, x60) observed a faint but extensive brightening of
the W.limb, perhaps a little stronger at PA=80-90 deg. No other
features seen in Earthshine although Aristarchus suspected.
ALPO/BAA weight=1.
On 1983 May 17 at UT20:13-20:40 P. Madej (Huddersfield, UK, x38 and
x63) found that Aristarchus was normal in appearance, but at 20:19 a
blood red disk was seen as bright as a 6th magnitude star. The colour
did not vary but the brightness changed from 4 to 8 over a 1.5-3min
period, on the south west wall. Foley (Kent, UK, 12" reflector)observed
Aristarchus at 22:10 and noted that it had the same rose-violet colour
as had been seen by him a day earlier. The Cameron 2006 catalog ID=220
and the weight=0. The ALPO/BAA weight=3.
On 1984 Nov 28 at UT 17:30-18:05 P. Madej (Huddersfield, UK) found that
the crater Hubble had a cream white oval patch for short while that was
2x brighter than it's surroundsings. The Cameron 2006 catalog ID=254
and weight=3. The ALPO/BAA weight=2.
On 1983 May 17 Foley (Kent, UK, 12" reflector)observed
Aristarchus at 22:10 and noted that it had the same rose-violet colour
as had been seen by him a day earlier. The Cameron 2006 catalog ID=220
and the weight=0. The ALPO/BAA weight=2.
Daniell 1979 Apr 02 UT 21:45-22:14 Obseved by Madej (Huddersfield, UK,
158mm reflector, f/4.2, x36-110, seeing II-III) "Obscuration seen" BAA
Lunar Section Report. Cameron says that this was a bright white cloud
that covered three quarters of the crater. A yellow filter was used at
21:48, but the cloud was still white, albeit thinner (at x110). By
22:14UT the TLP was barely visible and again no colour seen. Buczynski
(Lancaster, UK, seeing = poor) saw spurious colour. Later (22:31-
22:46UT?) Mellor obtained some photos, but these revealed no colour.
The Cameron 1978 catalog ID=48 and the weight=3. The ALPO/BAA weight=2.
On 1983 Jan 19 at UT 18:00-19:00 G. Amery (Reading, UK) discovered that
Aristarchus could not be seen in Earthshine, this was odd because less
prominent features could be seen. Other observers (Moore and Foley)
confirmed the very low brightness of the crater. The Cameron 2006
catalog ID=197 and the weight=2. The ALPO/BAA weight=2.
On 1983 Jan 19 at UT 18:00-19:00 G.W. Amery (Reading, UK) found that
Messier was difficult to define. The Cameron 2006 catalog ID=197 and
the weight=2. The ALPO/BAA weight=1.
Linne 1867 Aug 06 UT 21:00? Observed by Buckingham (England?)
"Crater in darkness, he saw a "rising oval spot". Other obs.
saw it as a triang. Bold black spot pointing to earth, slowly
diffused white & drift of white on slope of pyramid. (indep.
confirmation?)" NASA catalog weight=5 and catalog ID #155.
ALPO/BAA weight=2.
Near Ross D (23E, 12N) 1964 May 18 UT 03:54-04:53 Observed by
Harris, Cross et al. (Whittler, CA, USA, 19" relector x720, 8"
reflector x322, S=G) "White gas obscuration. Moved 20mph,
decreased in extent. Phenom. repeated. Drawing." NASA catalog
weight=5. NASA catalog ID 811. ALPO/BAA weight=4.
White spot near Censorinus 1966 Dec 18 UT 23:40-23:46 Observed by Enie
(Pittsburgh, Pennsylvania, USA, 8" reflector x100, S=G) "Attention
drawn to pink color in this usually white patch. Brightened to a light
reddish tinge for 2 mins, then faded back to pink, then to white,
Sketch." NASA catalog weight=4 (high). NASA catalog ID #1002.
On 2000 Feb 11 at UT19:00 G. North (Norfolk, UK) telephoned TLP
coordinator, Patrick Moore, to report a possible colour anomaly in
Aristarchus. Moore had poor conditions in Selsey (UK) and saw nothing
unusual. However by this time North was reporting that, the colour was
fading. Two other BAA members were alerted, but were clouded out. The
ALPO/BAA weight=3.
1968 Apr 04 UT 18:45-19:20 Observed by Darnella (Copenhagen,
Denmark, 6" refractor, x183) "Small area just E(ast.) of
Menelaus was seen with a reddish color which gradually faded.
Area was as large as Menelaus & had just come into sunlight. The
dome just W.(IAU) of Menelaus?)." NASA catalog weight=3. NASA
catalog ID #1065. ALPO/BAA weight=3.
Mons Piton 1843 Jul 04 UT 21:15-22:00 Observed by Gerling
(Germany?) "Bright pt. glowing like a star on the S. extension
of the Alps. On the following eve. found a small mt. which he
did not see before." NASA catalog weight=1. NASA catalog
ID=122. ALPO/BAA weight=1.
On 1983 May 20 at UT00:00-03:00 K. Marshall (Medellin, Columbia)
noted that Mons Piton was too bright near the terminator and was
surrounded by shadow. A sketch was made. The mountain appeared
segmented with one thin shadow line. The mountain looked like a
Mexican Sombrero hat. This appearance is normal. What was
abnormal was that Piton was brighter than Proclus, and only
slightly fainter than Censorinus. The CED brightness
measurements were normal Piton=3.6, Proclus=3.5 and Censorinus=
3.7. Please check to see whether this is still the case. The
cameron 2006 catalog ID=221 and the weight=3. The ALPO/BAA
weight=1.
Proclus 1972 Jan 23 UT 15:20-16:50 observed by Stolzen (51.17N, 9.25E,
50mm refractor, T=2, S=2) "Pure bright white point within crater" -
Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
Plato 1925 Jun 20 UT 20:00? Observed by Markov (Russia) "Light
bands in bottom seen in shadow & did not seem to be elevations.
These have been seen 5X from 1913-1922." NASA catalog weight=3.
NASA catalog ID #391. ALPO/BAA weight=2.
Alphonsus 1966 Apr 28 UT 21:58 Observed by Smith (England, 10"
reflector) and Corralitos Observatory (Organ Pass, NM, USA, 24"
reflector+Moon Blink) "Reddish patches, (not confirmed at Corralitos
with MB tho they give feature as Gassendi in their report)." NASA
catalog weight=2. NASA catalog ID #930. ALPO/BAA weight=1.
At 03:00UT(?) Evrard et al from the western US(?) saw somewhere
a reddish glow, followed by black obscuration. The date in the
Middlehurst catalog is 18/1/65, but there may have been a descrepency
between local time date and UT date? Cameron 1978 catalog TLP No=916
and weight=3.
On 1984 Dec 01 at UT 20:00 a British Astronomical Association Lunar
Section member (Southam, Warwickshire, UK) found no detail on the floor
of Autolycus, despite there being plenty of detail on the floor of
Aristillus crater. According to Foley, there should be some detail at
this stage of illumination. Grego reports that the observation was from
a Society for Popular Astronomy member and they described "a
homogeneous grey veil over the 20 km floor of the crater". The
Cameron 2006 catalog ID=255 and the weight=2. ALPO/BAA weight=2.
Aristillus 1939 Sep 23 UT 01:00 Observed by Haas? (New Mexico?, USA,
12" reflector?) "Dark area in W. part of floor had I=1.3. comp with I=
1.3, 3.7, 4.0 in #450, 454, & 459, respectively. (albedos disagree at
same phases, so are real anomalies). (normal here?)." NASA catalog
weight=4 (high). NASA catalog ID #461.
Alphonsus 1966 Apr 20 UT 22:28 Observed by Smith (Nottingham,
England, 10" reflector) Reddish patch possibly detected on SE
flank of central peaks, but more dubious than that from 28th
Apr. ALPO/BAA weight=1.
On 1987 Mar 09 at UT20:00 M. Mobberley (Sussex, UK) obtained some video
of Mons Pico - apparently these show the mountain with a puzzling
appearance (not sure whether it was the observer who claimed this or
some one who analyzed the tape). The Cameron 2006 catalog ID=300 and
the weight=5. ALPO/BAA=1.
1864 May 15-16 UT 23:00-01:00? East of Picard (probably Curtis
Observed by Ingall (Camberwell, England?) "Remarkable bright
spot" NASA catalog weight=3 (average). NASA catalog ID #134.
ALPO/BAA weight=3.