On 1969 May 20 at UT 03:18-04:27 Cross (Las Cruces, NM, USA 6"
refractor), Olivarez (Spain?), Kohlenberger, Gibson, Miller, Duarte and
Harris (CA, USA) observed brightenings, pulsations, scintillations in
Aristarchus crater. Cameron says independent confirmation seen by 4
observers, 1-2 magnitude increases, ranged between 1-30sec. Most active
period was 03:18-03:20UT, 04:17-04:27UT (Las Cruces). Calkins (West
Covins, CA, USA) UT 03:40-04:25 saw one major brightening up 2
magnitudes above steady state lasting 0.2 to 1.5 sec and another slow
brightening lasting 5-10 seconds. Kelsey (CA, USA) saw at 03:43-03:48UT
some brightenings. These observations were made during the Apollo 10
watch. The Cameron 1978 catalog ID=1127 and 1128 and weight=5. The
ALPO/BAA weight=4.
On 1973 May 06 at Ut 04:48 Bell (Lodi, CA, USA, 8.5" reflector x142)
saw a slow brightness increase in Reiner to magnitude 6, when suddenly
in the north east (IAU?) quadrant of the floor there was a very bright
pin-point blue-white flash of magntude 2 for approximately 0.5seconds.
After this the bright glowing of the crater diminished over about 15-
20 sec befofre returning to normal. The Cameron 1978 catalog ID=1366
and weight=3. The ALPO/BAA weight=3.
On 1881 May 04 UT 20:00 "Gamma" a psuedonym for an astronomer
(Germany?) observed Aristarchus to be be a very bright 8th magnitude
star with pulsations. The Cameron 1978 catalog ID=221 and the weight=3.
The ALPO/BAA weight=2.
On 1939 Feb 23 at UT17:00 Malakhov, Filippoova (Russia) observed an
intensive luminescence in background of ashen light that had ceased in
March, in Aristarchus (confirmed of Andrenko - says Cameron). Cameron
1978 catalog ID=446 and weight=5. ALPO/BAA weight=3.
On 1969 May 21 at UT 03:40-04:25 Kohlenberger (Fullerton, CA, 12"
reflector), Harris, Miller (Torrence, CA, 12" reflector), Bell and
Calkins (Ojai, Duarts, CA, USA), Kelsey (West Covins, CA, Riverside,
CA, USA) observed scintillations in Aristarchus - Cameron says
independent observations?). Members of Astronet took part in this
observation. Kelsey saw a brightening but not on the order of seconds
as others reported. Cameron suspects an atmospheric effect and also
comments that this was during the Apollo 10 watch. The Cameron 1978
catalog ID=1130 and weight=2. The ALPO/BAA weight=2.
On 1970 Jun 08/09 at UT 23:30-00:00 Celis (Quilpue, Chile, 3"
refractor, x60, seeing=good?) observed lots of activity in the
Aristarchus region - blue luminous star-like points, frequently
appearing. Cameron comments that maybe atmospheric effects. The Cameron
1978 catalog ID=1260 and weight=1. The ALPO/BAA weight=1.
Jansen-Maskelyne 1969 Jul 20 UT 00:53-01:00 Observed by Jean and Collak
(Montreal, Canada, 4" refractor and 6" reflector) "Jean and Collack
noted obscur. between Jansen and Maskel. from term. No features
discernible here whereas Proc. & Theoph. were already vis." NASA
catalog weight=2 (low). NASA catalog ID #1169.
Near Langrenus 1969 Jul 20 UT 00:53-01:00 Observed by McNamara (Canada,
6" reflector) "McNamara saw a flash nr. Lang. (meteor?) Apollo 11
watch)" NASA catalog weight=0 (very unreliable). NASA catalog ID #1169.
On 1970 Jun 09 at UT 23:15-23:30 Celis (Quilpue, Chile, 3"
refractor, x60, seeing=good) observed in the Aristarchus region:
"Brilliant blue star-like, uninterrupted. The Cameron
1978 catalog ID=1260 and weight=2. The ALPO/BAA weight=1.
near Proclus 1970 Apr 12 UT 00:15, 00:20 Observed by Loocks
(Valparalso, Chile, 12" reflector, x88) "Brilliant in area NW
of crater. No change in brightness Contrast to opacity of
illuminated fraction of this day Later saw a flash on the
moon. (Apollo 13 watch)." NASA catalog weight=2. NASA catalog
ID #1239. ALPO/BAA weight=2.
Theophilus 1970 Apr 12 UTC 00:25 Observed by Collier
(Montreal, Canada, 6" reflector?, x180) "Sharp E. inside wall
flashes; c.p. lighter than floor. Pink on peak & illum. wall.
Drawing. (Apollo 13 watch)." NASA catalog weight=2. NASA
catalog ID #1240. ALPO/BAA weight=2.
Klein (in Albategnius) 1971 Apr 31 UT 21:30 - 1971 May 01 UT
00:00 Observed by Fitton (England, 8" reflector, x200, filters)
"Attention distracted from Ptolemaeus to Klein where floor was
not normal. It had a pink line at foot of inner N. wall which
was bright in sunlight. Pink extended from N. to W. pt. Floor in
NW quad. was reddish-brown. All similarly illum. craters were
examined & no trace. Klein shifted to all parts of lens but
color persisted, but could not be induced in other craters. At
2230h floor took on more color in NW. In filters floor detail
vis. in red, almost invis. in blue, c.p. barely vis. Color
bright in red, & black in blue filter. In white light looked
like atm. above surface. Ptol. was equal in red & blue, & also
other craters. All seemed normal again on May 2nd. (date in ref.
gives Apr 30, Moore gives Apr 31? Ap 30 wrong as feature not
illum on that date, not even illum. on 5/2/71!)" NASA catalog
weight=4. NASA catalog ID #1292. ALPO/BAA weight=3.
Theophilus 1971 Mar 02 UT 20:30-22:50 Observed by Ringsdore
(Stoneleigh, England, 15" reflector, x360, seeing=good)
"Suspected TLP on c.p. 2 other obs. did not confirm. Orange-
pink glow. Faded for 10 min then reappeared." NASA catalog
weight=2. NASA catalog ID 1286. ALPO/BAA weight=1.
On 1982 Oct 22 at UT23:45-00:10 K. Marshall (Medellin,
Columbia) found the W-NW rim of Proclus was both red and very
bright. The brightness is normal, but as no similar colour
effect was seen elsewhere on the Moon, this was regarded as a
TLP. The Cameron 2006 catalog ID=187 and the weight=3. The
ALPO/BAA weight=3.
On 1984 Sep 30 at UT17:30-18:45 P. Madej (Huddersfield, UK, 83x,
seeing=I-II, transparency very good and no spurious colour) "Twilight
Earthsine at 1732, 83x light-darker blue by 1800. Looked like a star of
mag. 3-4 with no variations. Spot moved slightly from side to side, not
connected with alignment or optical. Luminescence may have expanded and
contracted, but not sure. Other regions in Earthsine not seen.
(Mobberley) saw Earthshine with naked eye. Aris seen before clouds
came. Earthsine > normal T=E. (Foley) took CED readings which confirm
the brilliance of it. No other features could be measured in
Earthshine."The Cameron 2006 catalog ID=250 and the weight=0. The
ALPO/BAA weight=1.
On 1982 Oct 22 at UT23:55 K. Marshall (Medellin, Columbia) found
the NE cleft in Posidonius to be abnormally bright, much more so
than the walls of the crater. The ALPO/BAA weight=1.
On 2009 Mar 31 at UT 19:26-19:50 Cook M.C. (Mundesley, UK,
90mm Questar reflector, x130, seeing II-III, transparency poor
to moderate). The crater had it's north-east to west wall
illuminated and a central feature on the floor, faintly seen -
both of these are normal. The crater itself though was much
brighter in a red filter, bright in a wellow filter, but dull
in a blue filter. Possible variation seen whilst using the red
filter, but this may have been due to haze. All other features
behaved normally. The ALPO/BAA weight=3.
On 1877 Jun 16 at UT 20:00 Harrison (USA?) noted on the western limb
variations of brilliancy along the dark limb reembled light of a moving
mirror held to a strong light against shadow of a dark ha.. Faint
greenish-blue streamers resembling terr. aurora streamers. He thought
they were same cause on the Moon. The effect was brighter two days
earlier. The Cameron 1978 catalog weight=3 and ID=192.
On 1969 May 22 at UT04:28-05:06 Harris (Tucson, AZ, USA, 21"
reflector), Ricke (8" reflector), and Cameron (Greenbelt, MD, USA, 21"
reflector, x40 and x250) observed "Brightenings & pulsations. 1st per.
0428-0440h(R&H); then 0500(R). 3rd per. 0506h(H). Pulsations
intermittent & increase @ 1/2 mag. except 1 was 1-2 mag. greater.
(atmosp. ?). Cameron at 0130-0330 did not see Aris. in 12-in refl. at
40x or 250x, & saw nothing abnormal. (Apollo 10 watch)". The Cameron
1978 catalog ID=1133 and weight=1. The ALPO/BAA weight=2.
Burg 1972 May 18 UT 20:50-21:45, 22:15-23:00 Observed by Moore
(Selsey, England, 12.5" reflector, x350, S=3-4), and Fitton
(Lancashire, England, 8.5" reflectpr, x200) "Suspected floor
brightening at 2050h with a luminous strip to the SW. Persisted
for sometime. Faded at 2110h & invis. at 2145h. Fitton from
2215h-2300h saw nothing unusual, (after event tho.)" NASA
catalog weight=3. NASA catalog ID #1333. ALPO/BAA weight=1.
Bright spot seen. The Cameron 1978 catalog
gives this TLP an ID No. of 36 and a weight
of 1. The ALPO/BAA catalog weight is also 1.
Proclus 1969 Jul 20 UT 03:55-04:15 Observed by Gergoulis, Morley,
Sevra, Skinner, and Naumann (Edinburg, TX, 17" reflector, x169) " Texas
group got a blink (red, Trident MB) on NW wall. Varied extremely.
Increased in brightness in red. Clouds stopped obs. 5 confirmed
visualy. (moon nr. horizon, Apollo 11 watch. No blink if spurious?)."
NASA catalog weight=3 (average). NASA catalog ID #1170.
On 1968 Jun 01 at UT 21:00? Kozyrev (Crimea?, Soviet Union)
Gas luminescence seen in Aristarchus crater. The Cameron 1978 catalog
ID=1075 and weight=3. The ALPO/BAA weight=3.
On 1969 May 23 at UT 03:58-04:17 Wald (Zurich, Switzerland), E. & L.
Cross (Las Cruces, NM, USA, 6" reflector, x120, S=F, T=VG). "Crater
pulsations (Wald). Variations suspected at 0318, 0320-25 by E. Cross,
0417-27 by E. & L. Cross saw non-periodic short var., sudden increases
1-2 mag. & sudden to slow, 1-30s decreases to normal 0441-0446.
(confirm. ?Apollo 10 watch)". The Cameron 1978 catalog ID=1139 and the
weight=5. The ALPO/BAA weight=4.
Biela, Maskelyne 1969 May 23 UTC 02:32-03:00 Observed by
Skinner, Perez, Barry, Bernie, Madison (Edinburgh, TX, USA)
described in NASA catalog as: "Bright W.rim & 2 spots on N.
&SE rim had blink (red -- Trident MB device) & event was in
progress at start of obs. Saw nothing without image tube.
Could not focus camera so no photos. Blink had ceased when
image tube was replaced. Temporary bright reddish spot nr.
Mask. photographed, (Apollo 10 watch). 17" reflector used.
NASA catalog weight=5. ALPO/BAA weight=5.
On 1969 May 23 at UT03:04-03:10 Jean (Montreal, Canada, 4" refractor,
seeing=good, transparency=3.) observed a white patch on the southern
horn of the Moon. It enlarged and became coloured pink and blue without
filters and reddish in a yellow filter(?). At 03:10UT the area became
as normal as the rest of the environment. Other observers participating
were: Rousseau (Canada, 8" reflector), Collier (Canada, 5.25"
refractor) and Dumas, St. Cyr (Canada, 5.25" refractor). Cameron
suspects a real event mixed in with Chromatic Aberation? Apollo 10
watch. The cameron 1978 catalog ID=1138 and weight=3. The ALPO/BAA
weight=2.
Maskelyne 1969 May 23 UT 02:32-03:00 Observed by Skinner, Perez,
Barry, Bernie, Madison (Edinburgh, TX, USA) descibed in NASA
catalog as: "Temporary bright reddish spot nr. Mask.
photographed, (Apollo 10 watch). 17" reflector used. NASA
catalog weight=5. ALPO/BAA weight=4.
On 1970 Apr 12 at UT 23:56 Loocks (Valparsiso, Chile, 12" reflector,
x88) observed a flash of magnitude 10 in Aristarchus - "not as
brilliant as usual (obscur. ?). Did not obs. permanent luminosity as in
other apportunities. (Apollo 13 watch)" The Cameron 1978 catalog ID=
1243 and weight=3. The ALPO/BAA weight=2.
Cyrillus 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso,
Chile, 12" reflector x88, LION network) "Small crater in Western
Cyrillus was much brighter than anything in the area". NASA catalog
weight=1 (very low). NASA catalog ID #1242.
Mare Numbium 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso,
Chile, 12" reflector x88, LION network) "Small crater in Western
Cyrillus was much brighter than anything in the area. Earlier
he got a blink at 35deg W 15 deg S 10th mag. Drawing (Apollo 13
watch)" NASA catalog weight=2 (poor). NASA catalog ID #1242.
Madler 1971 Mar 03 UT 21:30-21:45 J Andrews (Christchurch, UK,
8.5" reflector, x240, seeing I) observed a red fan shaped area to
the south of Madler - it covered part pf the mountainous area to
the south. The colour started fading at 21:45UT and had gone
within 5 minutes. ALPO/BAA weight=1.
On 1971 May 01 at UT21:00-21:50 Staedke, Jorgensen (Berlin, Germany,
x40 with filters) observed on Maurolycus a coloured, luminous
projection from the crater into and through the small crater on the
north rim. Colour of a dark candlelight then red. Length at diameter of
small crater. a drawing was supplied. Cameron 1978 catalog ID 1293 and
weight=1.
Near Theophilus - south of Madler - 1971 Mar 03 UT 21:30-21:35, 21:47
Observed by Hedley-Robinson (England, 3.75" refractor, x164, S=G,
steady haze) "Reddening in a fan form on bright area of that
formation, but red did not extend fully over it. Blink patrol started
at 2005h but no red till 2130h. Definte blink at 2147h" NASA catalog
weight=3 (average). NASA catalog ID #1287.
On 1972 May 19 UT 18:24 observed by Engels (52deg 40'N 9deg 5E, using
10x50 binouculars, transparency 2 out of 5, seeing unknown), a orange
to yellow bright flash was seen, lasting 0.1 sec at the southern rim of
Mare Crisium. Published in Hilbrecht and Kuveler, Moon and Planets, 30
(1984) p53-61. ALPO/BAA weight=2.
On 2012 Feb 28 R. Braga (Italy, Seeing III, Transparency very
good, AOG 100mm) UT 19:45-20:00 noted that only the tip of the
central peak was visible. Most of the crater was in darkness.
When viewed through a red filter, the central peak was visble,
but when viewed through a blue filter it was invisible.
ALPO/BAA weight=2.
Hase 1970 Apr 13 UT 01:28 Observed by Dumas (Montreal, Canada)
"Intermittent light on S.wall of crater (atm. ?) (Apollo 13 watch).
NASA catalog weight=1 (very poor). NASA catalog ID #1244.
On 1865 Nov 24 at 20:00? UT Williams and others (England, UK, 4"
telescope) saw in Earthshine that Carlini was had a distinct 8th
magnitude star-like speck in it. The Cameron 1978 catalog ID=140 and
the weight=3. The ALPO/BAA weight=3.
On 1964 Jul 16 at 03:55-04:10UT Cragg (Mt Wilson, CA, USA, 6"
reflector, x180, seeing 7, transparency 6) observed a pseudo hill
(700m high) some 3 km in diameter and casting a shadow, south
east of Ross D. The Cameron 1978 catalog TLP ID=830 and the
weight=4. The ALPO/BAA weight=3.
On 2009 Apr 01 at UT 20:00-20:30 C. Brook (PLymouth, UK,
5" refractor, x40 and x100, using red and blue gelatine
Edmund Optics filters observed that a few bright areas
in the centre of mare Crisium were brighter in red at
the start of the observing session than in blue, although
not at a higher magnification. The observation ended when
seeing worsened. The ALPO/BAA weight=2.
Torricelli 2011 Dec 31 UT 16:39-17:00 R.Braga (Milan, Italy,
80mm refractor) found the north rim or Torricelli to be very
bright at the start of the observing session but dimmed
considerably at around 17:00UT. Observer not sure on the
normal appearance of this crater. ALPO/BAA weight=2 followinf
repeat illumination images in the 2021 Apr ALPO TLO..
On 1877 Jun 17 at UT 21:00? Harrison (USA?) observed a light point on
the Earthlit side of the Moon. He also observed a luminous point that
could not be identified (Cameron speculates that this could be a
confirtmation of Denett's Bessel observation?). The Cameron 1978
catalog ID=195 and the weight=3. The ALPO/BAA weight=2.
Rabi Levi 1969 May 23 UT 05:28-05:35 Observed by Perez, Gay, Skinner,
Floodine (Edinburgh, TX, USA, 17" reflector) "3 small craters in it,
middle one had a blink (Trident MB --red) very bright & the NW crater
of the 3 had a dimmer blink. A few bright flashes were seen vis. by 3
obs. without the image tube, lasting 15s. Clouded out at 0525h, (alt.
of moon was very low--atm?, ? Apollo 10 watch)." NASA catalog weight=3
(average). NASA catalog ID #1140.
Noble (England?, seeing=fair) observed a badly defined white patch east
of Picard. Cameron 1978 catalog ID=201 and weight=3. ALPO/BAA weight=2.
Bessel 1877 Jun 17 UT 22:30 Observed by Denett (England?, 2.75"
reflector) "Tho't he could detect a minute pt. of light shining out of
dark crater. (no high peaks in Bessel to catch light.)" NASA catalog
weight=3 (average). NASA catalog ID #194. ALPO/BAA weight=3.
On 1965 Aug 04 at UT 04:02-04:04 Bornhurst (Monterey Park, CA, USA,
10" reflector, x240, S=F-G) observed some star-like flashes in
Aristarchus in ashen light. The Cameron 1978 catalog ID=889 and the
weight=3. The ALPO/BAA weight=2.
On 1965 Oct 02 at 04:00UT an unknown observer saw a TLP (feature name
not given in the Cameron catalog - nor a description or reference). The
Cameron 1978 catalog ID=898 and weight=1. The ALPO/BAA weigh=1.
Godin, Agrippa, Mare Crisium, and Webb's spot.... 1882 Apr 24
UT 21:30-22:00 Observed by Ridd (England?) "Shadow anomalies-
strange appearance. (he often noticed appear. that could only
be haze. Shadows blurred and oscillated. Shadows in Aristotles
were steady. E. of Agrippa shadows were misty as the foggy
which lifted & then became obscur. again. Intervals being 1o
min. (not terr. atmos.). Shadows never became clear whole time
of obs. Also saw a white spot NW of 5 on Nelson's map (Webb's
spot). " NASA catalog weight=2. NASA catalog ID #231. ALPO/BAA
weight=2.
Godin, Agrippa, Mare Crisium, and Webb's spot.... 1882 Apr 24
UT 21:30-22:00 Observed by Ridd (England?) "Shadow anomalies-
strange appearance. (he often noticed appear. that could only
be haze. Shadows blurred and oscillated. Shadows in Aristotles
were steady. E. of Agrippa shadows were misty as the foggy
which lifted & then became obscur. again. Intervals being 1o
min. (not terr. atmos.). Shadows never became clear whole time
of obs. Also saw a white spot NW of 5 on Nelson's map (Webb's
spot). " NASA catalog weight=1. NASA catalog ID #231.ALPO/BAA
weight=1.
Godin, Agrippa, Mare Crisium, and Webb's spot.... 1882 Apr 24
UT 21:30-22:00 Observed by Ridd (England?) "Shadow anomalies-
strange appearance. (he often noticed appear. that could only
be haze. Shadows blurred and oscillated. Shadows in Aristotles
were steady. E. of Agrippa shadows were misty as the foggy
which lifted & then became obscur. again. Intervals being 1o
min. (not terr. atmos.). Shadows never became clear whole time
of obs. Also saw a white spot NW of 5 on Nelson's map (Webb's
spot). " NASA catalog weight=1. NASA catalog ID #231. ALPO/BAA
weight=1.
Agrippa 1961 Oct 17 UTC 00:32-00:52 Observed by Bartlett (Baltimore,
MD, USA) described in NASA catalog as: "Shadow of c.p. medium gray,
compared with black wall of shadow" 5" reflector x180. NASA catalog
weight=4 (high)
On 1969 May 24 at UT 02:40 Ricker (Marquette, MI, USA, 10" reflector)
and Kelsey (Riverside, CA, USA, 8"? reflector). Ricker saw pulsations
in Aristarchus, partly confirmed by Kelsey. Cameron comments that it is
suprising that Aristarchus could be seen at first quarter - Apollo 10
watch. The Cameron 1978 catalog ID=1142 and weight=5. The ALPO/BAA
weight=4.
Proclus 1969 Jul 22 UT 00:30? 01:15-01:25 observed by Classen
(Pulsnitz, E.Germany, 8" reflector), Leroy (Pittsburgh, 21.5" reflector
x310) and Cutter (Pennyslyvania) "Brightening of crater (Classen).
Alternatate brighening of S.part of crater at 15s intervals (too long
interval for atm.) while N. half remained constant. Leroy confirmed
Cutter. (Both confirmed Classen Apollo 11 watch)." NASA catalog weight=
5. NASA catalog weight=1151. ALPO/BAA weight=3.
Ptolemeus 1970 Apr 14 UT 00:45-01:30 Observed by Nelson Travnik and Sergio Vianna (Matias Barbosa, Minas Gerais, Brazil, 4" refractor, x250, x400, - observing onditions very good, Kodak Wratten 15 an d 23 filters used) "A kind of glimmering mist lifted and wafted inside the shady hollow of the crat er (Apollo 13 watch)" NASA catalog weight=3 NASA catalog ID #1248. ALPO/BAA weight=1.
Theophilus 1972 May 20 UTC 19:10-19:59 Observed by Haiduk (13.25E,
52.5N, 75mm refractor) "Well visible brihtening on the SW wall" S=2, T=
3 Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, pp53-61.
On 1994 Apr 18 at UT14:40 C.D. Hua (China) found that the wall of
Picard had changed to dark. The ALPO/BAA weight=1.
Proclus 1972 Mar 22 UT 19:50-21:55 Observed by Jewitt
(Middlesex, England, 6" reflector x150, S=7, T=4), Beddoes
(England), and Moore (Selsey, England, 12.5" reflector, x250,
x460, S=E, S=F) "At 1905h noted c.p. was invis. under all
magnifications. At 2050h saw minute star-like flash @ 0.5s
duration, followed by another 10s later, & another one 10s after
that. Occurred on N. crater floor. Proc. C was vis. Was using
blink device. Beddoe saw nothing unusual from 1850-1900h (prior
to event). Moore alerted, saw nothing unusual from 2100h on
(after flash. c.p. variation similar to rep'ts by Bartlett e.g.
ID=1309." NASA catalog weight=2. NASA catalog ID 1327. ALPO/BAA
weight=1.
SE of Ross D 1969 May 24 UT 05:06-05:20 Observed by Harris
(Tucson, AZ, USA, 21" reflector, S=F-P) "Multiple albedo
changes, 2 bright areas vis. at 05:06, reduced at 0508h
Whittier, CA, USA, 19" refractor?) NASA catalog weight=0 (very
unreliable). NASA catalog ID #874. However a letter by Harris
states: Variable transparency - colourless bright area SE of
Ross D with variable condensation. ALPO/BAA weight=1.
On 1991 Apr 22 at UT 01:10-01:22 D. Darling (Sun Praire, WI, USA,
12.5", x99, seeing=7/10) observed that Piazzi-Smyth was
bright in red light but fuzzy in blue light. The Cameron 2006
catalog ID=424 and the weight=3. The ALPO/BAA weight=3.
On 1993 Mar 30 at UT 19:30 an unknown British observer (Reading, UK)
noted that the crater at the end of the Alpine valley looked unusual.
However M. Cook (Frimley, UK) also observed the feature but found
nothing unusual. The Cameron 2006 catalog ID=457 and weight=0. The
ALPO/BAA weight=1.
On 1993 Mar 30 at UT19:35-21:15 J. Knott (England, UK, 8.5" reflector,
x180 and x216, seeing=II and Transparency=good) observed at 19:35 the
central peak of Alphonsus appeared to be extra bright although was
normal later, however the observer suspects that this was a contrast
related and was not confident to send out a TLP alert. The Cameron 2006
catalog ID=458a and 458b and weights=0. The ALPO/BAA weight=1.
Torricelli B 2002 Oct 14 UT 02:58-03:43 Observed by Gray (Winnemucca,
NV, USA, 152mm refractor x114, x305, seeing Antoniadi III, transparency
good) "I was out this morning (2:58-3:43 UT, October 14, 2002)
observing Torricelli B. At 3:17 UT the west sunlit wall of the crater
brightened from an intensity (Elger Scale) of 5.0 to 9.0. In actual
terms it went from slightly less bright than the walls of Picard to as
bright as the sunlit west wall of Dionysius. This was observed at 114x
in white light, where all three craters were in the field of view
simultaneously. This event lasted less than a minute and no comparable
brightening in Dionysius or Picard was seen. The wall of Torricelli B
returned to 5.0 in brightness. I continued to observe Torricelli B in
white light until 3:43 UT, but the brightness remained at 5.0. Before
the brightening I tried blinking Torricelli with the following
combinations of filters: Wratten Red 25 and Blue 38A, Red 25 and Blue
80, and Red 25 and Schott BG38 (Blue Green). Nothing showed up more
prominently in any combination except the Red 25-Blue 38A combination,
where Torricelli B became invisible in the Blue, probably because of
the filter density. Both the Blue 80 and Schott BG 38 seemed closer in
density to the Red 25 than the Blue 38A is. I could not see any details
inside Torricelli B during this session, including the bright spot on
the NE rim." The ALPO/BAA weight=3.
Linne 1866 Dec 14 UT 20:00? Observed by Schmidt? (Athens, Greece?, 7"
refractor?) "Seen as a white spot, had been a fine black spot before as
seen by Schmidt. (Also Buckingham in Dec. 1866; also D 16,25th,27th, --
not LTP?" NASA catalog weight=0 (probably not a TLP. NASA catalog ID
146.
On 1991 Apr 22 at UT 02:03-02:14 D. Darling (Sun Praire, WI, USA,
12.5", x99, seeing 7/10) found, using a red and blue Moonblink
device that Atlas crater gave a blink, the dark spots inside the
crater have a dark nucleus in the blue filter. This effect was
not detected earlier that night. The Cameron 2006 catalog then
says "Atlas normal". The Cameron 2006 catalog ID=424 and the
weight=3. The ALPO/BAA weight=2.
Ptolemeus 2020 Jul 27 UT 23:00 N. Travnik (Brazil) observed
visually for 2nd time ever (first seen back in 1970), an
effect on the floor of this crater at local lunar sunrise:
"kind of glimmering mist lifted and wafted inside the shady
hollow of the crater". Almost certainly this is a combination
of atmopsheric seeing on the narrow shadow spires, but we
would like observers to look at this visually or obtain time
sequence images to try to replicate this effect. This report
is assigned an ALPO/BAA weight of 1 for now.
Atlas 1973 Apr 10 UT 18:37-19:49 Observed by Theiss (51N, 9.67E, 75mm
refractor, T=2, S=3) "N. wall of Atlas was yellow-green, several
magnifications tested with the same results" - Hilbrecht and Kuveler,
Earth, Moon & Planets, 30 (1984), p53-61
On 2009 Apr 02 at UT 21:45-22:05 C. Brook (Plymouth, UK,
5" refractor, x40 and x100, using red and blue gelatine
Edmund Optics filters (rose No. 47 and blue No. 80),
transparency poor due to thick haze. seeing was excellent)
observed that that the rays that crossed Mare Cisrium from
Proclus were brighter in red light than in blue. A similar
effect was also observed, to a lesser extent south of the
Mare. Non-mare Crisium rays from Proclus did not have this effect.
The TLP was not seen at the higher magnification of x100.
The ALPO/BAA weight=2.
On 1978 Nov 08 at UT03:00 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x95, seeing 8/10) saw near Beer and
Timocharis (11W, 30N) a bright flash inside the dark area. It
appeared like a diamond twinkling in sunlight and was somewhat
dazzling to the eyes. Cameron wonders in this was a meteor?
The Cameron 2005 TLP catalog ID=39 and weight=2. This is an
ALPO observation. The ALPO/BAA weight is 3.
Piton 1960 Dec 26 ? UT 00:00? Observed by Schneller (Cleveland, OH,
USA, 8" Reflector, x53), "Red obscuration; less intense than Nov. (date
not given, but discussion suggests near SR, therefore Dec 28th most
likely date -- ancill. data given for 28th)." NASA catalog weight=3
(average). NASA catalog ID #732.
Mare Vaporum 1969 Apr 24 UT 19:34 Observed by Bentley (England,
8" reflector, x320, S=E) "NW part of mare obscured for 4 min.,
gradually thinning." NASA catalog weight=3. NASA catalog ID No.
1123. ALPO/BAA weight=2.
Large plume-like diffuse cloud over central peak, very
large compared to central peak (@ approx 30km diameter)
with intensity much different from other parts. Brightness
between walls and shadowed floor. Would take 3 minutes to
collapse, so continuously fed. 13-14 days later, at SS,
central peak was normal. Kuiper took photos after Kozyrev's
observations, but saw nothing abnormal. Drawing. Haas saw
nothing in 12inch reflector at the time. Cameron 1978
catalog TLP ID=705 and weight=4. ALPO/BAA weight=2.
Aristillus 1973 Apr 10 UT 20:18-20:24 Observed by Pasternak (53.33N,
7.5E, 75mm refractor, T=3, S=3) "Faint reddish area at the SE wall of
Aristillus" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984),
p53-61.
Alphonsus 1966 Jun 26 UT 04:30-04:40 Observed visually by
D.Harris and E.Arriola (Whittier, CA, USA, 19" reflector x146,
and spectrum, S=4, T=1-0) "Absorp. spectrum (visual) of c.p.
band at 475+/-5nm (1st est.); 2nd est. at 485+/-5nm. Band
degraded towards the viol. Band nr.Hydrogen Beta. as if
abnormally broadened. So sign of anything unusual visually in
central peak in white light. Absorption appeared only on C.P.,
not over walls. Calibration corrections put band at 491+/-4nm"
NASA catalog weight=5. NASA catalog ID #948. ALPO/BAA weight=5.
Near archimedes 2001 Sep 25 UT 08:30 Observed by Try (Whangarei, New
Zealand, 4" f/10 reflector) "observed two possible L.T.Ps. on the edge
of the terminator near the crater Archimedes. They appeared to be two
bright points of light about the size of Mount Piton. They seem to
form a triangle with Mount Piton. He observed them for two hours and
they were still visible when he ended his observing session. He was
observing with a 4" f10 reflector. Then Moon age was 7.9 days old and
the colongitude was 4.83. submitted a drawing showing the area where
the lights were observed." ALPO report. ALPO/BAA weight=1.
Alpetragius 1958 Nov 19 UT 22:00-22:05 Observed by Stein
(Newark, New Jersey, USA, 4" refractor) "Shadow anomaly.
Portion of shadow vanished, replaced by lighter shade. At
22:05 gradually darkened & was normal in 20 sec." NASA catalog
weight=3. NASA catalog ID #704. ALPO/BAA weight=2.
Agrippa 1961 Oct 18 UT 00:43-01:00 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x180, S=2-3, T=5) "Shadow of
c.p. remained grayish, wall shad. normal black. Not due to
seeing as wall & landslide shad. not affected. Not caused by
refl. sunlight because other similar obs. showed different
aspects." NASA catalog weight=4. ALPO/BAA weight=2. NASA
catalog ID #750.
On 1969 May 25 at UT03:53-05:47 Ricke (Tucson, AZ, USA, 8" reflector),
Leasure (Tucson, AZ, USA), Freuland (Tucson, AZ, USA), Sheridan
(Wyoming, USA), and Harris, Tucson, AZ, USA). "At 0353h saw brightening
of 1s intermittent pulsations of 1 mag., confirmed by Leasure at 0357;
0400 Freuland saw brightening. At 0514h Ricke, 1 mag, at 0515h-0530 --
low amp. variations seen by Ricke & Harris. At 0525h Sheridan saw
bright. & puls. Harris at 0546h-47h saw 2 brightenings in crater.
(Apollo 10 watch seen in dark at gibbous phase!). (indep.
confirmation?)". The Cameron 1978 catalog ID=1146 and weight=5. The
ALPO/BAA weight=4.
Eratosthenes 1970 Apr 15 UTC 01:25-01:42 Observed by daSilva
(Brazil, 10" reflector x200 & 20" refractor x224, Seeing=good,
Transparency=Good). "Vis. blink? on lower c.p. Ilum. walls were
yellowish-white C.p. diamond brightness with a pt. flashing.
Turbulent atms. impeded confirm. Other features were normal
(Apollo 13 watch. S-IVB impact at 0109h, took 70 s to reach A12
Alsep." NASA catalog weight=3. NASA catalog ID #1252. ALPO/BAA
weight=3.
Eratosthenes 1961 Oct 18 UT 01:05-01:25 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x180, S=P, T=G) "Fluorescent
violet on inner W(IAU) wall (reported as bright spot in MB).
NASA catalog weight=4 (high). NASA catalog ID #751.
1972 Mar 23 UT 19:24 Observer: Rudolphi (48.58N, 10E, 60mm refractor,
Transparency=2) "Pure white very bright event" Ref: Hilbrecht & Kuveler
- Earth, Moon & Planets (30) pp53-61.
Schroter 1839 Jul 19 UT 22:00? Observed by Gruihuisen (Munich, Germany)
"Dark mist" NASA catalog weight=4 (high). NASA catalog ID #119.
ALPO/BAA weight=3.
Ross D 1969 May 25 UT 04:34-04:38 Observed by Cross (Las Cruces, NM, USA, 6" f/17 refractor) "Bright spot adjacent to
NE segment of crater, 1.5-2" at greatest extent & much
brighter than rim of Ross D. Fuzziness here & extensive
obscur. of detail E. of Ross D (Apollo 10 watch)" NASA
catalog weight=3, NASA catalog ID #1147. ALPO/BAA weight=3.
On 1980 Oct 17 at UT18:40-19:10 G. Blair (Weir, Renfrewshire,
Scotland, UK, 22cm reflector, seeing II, transparency excellent,
no spurious colour) noticed at 18:40UT that the bright central
peak of Alphonsus was elongated. At 18:41UT, at higher power,
the central peak separated from a bright point of light,
intensity about that of a 6th magnitude star. at 18:43UT a
filter check was made of the suspect point and surrounding
regions - slightly nrighter in red. At 18:50UT intensity of
bright point reduced to equivalent of 4th magnitude star. Noted
that Earthshine was the brightest that he had ever seen it. At
19:03 UT losing the Moon behind a chimney. UT 19:10 brief
appearance, bright point still seen at 4th magnitude. 19:27UT
the Moon disappears again. 20:15UT reappearance of the Moon and
Alphonsus appeared normal. The ALPO/BAA weight=2. This is a BAA
Lunar section observation.
Plato 1952 Apr 03 UT 20:45-21:30 Observed by Wilkins and Moore
(Meudon, France, 33" x460) whilst checking up on a 1923 28"
refractor sketch by W.H. Stevenson's, thry failed to detect a
prominent floor craterlet (featured in the 1923 sketch) just
inside the W wall. They suspected an obscuration.
Interestingly the whole floor was was reported to be lacking
in detail many hours later as observed by Cragg in the USA.
NASA catalog weight=5. NASA catalog TLP ID No. #550. ALPO/BAA
weight=2.
Apr 25 UT 20:20 Observed by Bentley (England, 8" rteflector
x320, S=VG) "Flashing star-like pts, in area beyond the
terminator, (atmosphere?)" NASA catalog weight=1. NASA catalog
ID #1124. ALPO/BAA weight=1.
Plato 1970 Apr 15 UT 05:38-05:40,05:51-05:53 Observed by Cross
(Las Cruces, NM, USA, 108mm Schiefspiegler or 152mm refractor,
S=6, T=5.5=VG). The observer noted a lack of detail inside the
crater floor, despite visibility of detail outside the crater.
Spectra were normal for color. (obs. similar to historic
reports. Apollo 13 watch?)" NASA catalog weight=1 and catalog ID
#1253. ALPO/BAA weight=2.
On 1989 Jun 12 at UT 21:18-22:25 G. North (Herstmonceaux, UK,
Coude, seeing=V) noted at 21:18UT that Torricelli B was
"barely visible"- possibly this was seeing related. M. Cook
(Frimley, UK, 8" reflector, seeing=IV) found Toricelli B to be
ëxtremely dull - impossible to judge shadows on floor in
contrast to Cens." Holmes (Rockdale, England, UK, 8"
reflector, seeing=II-III) at UT21:30 also found Toricelli B
difficult to find at magnifications less than 200x. Cameron
comments that "Dulling is common on it at high Sun but
illumination doesn't seem to be the cause or related". The
Cameron 2006 catalog ID=365 and weight=5.
The ALPO/BAA weight=2.
Alphonsus 1958 Dec 19 UT 20:00? Observed by Wilkins (Kent, UK)
described in the NASA catalog as: "Reddish patch on central
peak" 15" reflector used. NASA catalog weight=4. NASA catalof
TLP ID No. 711. ALPO/BAA weight=3.
Tycho 1940 Dec 09 UTC 04:00? Observer Barcroft (Madera, CA, USA). The
NASA catalog states: "Some luminosity on W. rim of outer slope". 6"
reflector used. NASA TLP catalog assigns a weight of 3 (average). NASA
catalog TLP ID No. #481.
Plato 1966 Jun 27 UT 21:40-21:55 Observed by Robinson (Teignmouth,
England, 10.5" reflector) and Sartory (England, 8.5" reflector + Moon
blink) "Color (red?) on SE wall detected by Eng. moon blink sys.
(confirm)." NASA catalog weight=5 (very high). NASA catalog ID 949.
Alphonsus 1969 Jul 24 UT 01:00-02:35 Observed by Fournier (Lowell, 6"
reflector x158) and Dillon (Massachuchusets, USA) "Fournier saw obscur.
& red in crater. 1 of the dark halos (NE) was very difficult to detect
-- seemed to be a whitish mist. Detail best seen in blue & green
filters. Dillon found halo much lighter than usual, with sharp boundary
washed out. Halo was darker thru blue filter, indicating red when it's
normally bluisg-green. Next nite it was normal. Worsening weather
stopped obs. (confirmation. Apollo 11 watch)." NASA catalog weight=5
(very good). NASA catalog ID #1185.
On 1987 Jul 05 at UT 21:18-21:38 H. Miles (Cornwall, UK, Moon's
altitude 19 deg) found the north west rim of Proclus was very bright
and when he alternated between red and blue filters got a colour blink
reaction. There is no Cameron 2006 catalog entry for this TLP report.
The ALPO/BAA weight=3.
On 1992 May 11 at UT 20:20-21:00 R. Amendsensvej (Esbjerj, Denmark,
10" reflector, x333) noted that Copernicus had "almost no disturbance.
Flash was seen between 2236:30 & 2236:40. Thus 10S". The Cameron 1978
catalog ID=444 and weight=1. The ALPO/BAA weight=2.
Bullialdus 1980 Oct 18 UT 20:15-20:25 Observed bt Amery
(Reading, England, 10" reflector) "Colour blink reaction in
English Moon Blink Device" BAA Lunar Section report. Cameron
suggsets that this might be a permanent coloured blink area.
Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA weight=3.
Fracastorius 1980 Oct 18 UT 17:55-18:15 Observed by Robinson (Devon,
England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink
reaction in English Moon Blink Device - inner wall brighter in red than
in blue light, despite other features appearing normal. BAA Lunar
Section report. Cameron 2006 catalog ID=115 and weight=3. ALPO/BAA
weight=2.
Manilius 1980 Oct 18 UT 17:55-18:15 Observed bt Robinson (Devon,
England, 260mm Newtonian, Seeing III, Transparency poor) "Colour blink
reaction in English Moon Blink Device - crater surrounds bright in red
and dull in blue light" BAA Lunar Section report. Cameron 2006 catalog
ID=115 and weight=3. ALPO/BAA weight=3.
Plato 1980 Oct 18 UT 17:55-18:15 Observed bt Robinson (Devon, England,
260mm Newtonian, Seeing III, Transparency poor) "Colour blink reaction
in English Moon Blink Device - floor patches easily seen in red, not
so well seen in blue" BAA Lunar Section report. Cameron 2006 catalog
ID=115 and weight=3. ALPO/BAA weight=2.
La Hire 1922 Nov 28 UT 22:00? Observer Wilkins (England). NASA
catalog states: "Shadow cut thru by white streak (real LTP?.
Pickering's atlas shows same phase & col. & shadow is all
dark; elong. in peaks are N-S not E-W)" 15" reflectore used.
NASA Catalog assigns a weight of 4. NASA catalog TLP ID No. #
388. ALPO/BAA weight=2.
Manilius 1972 May 22 UTC 20:10-20:40 observed by Kern (48deg 45'N, 8deg
45'E, 60mm refractor) "The SW inner wall became brighter at times" -
Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.
On 2009 Apr 04 at UT 20:30-20:45 C. Brook (Plymouth, UK) observed a
slight pinkish mottling on the floor of Plato. The effect was no longer
visible after 20:45UT. A telephone alert was put out to M. Cook and G.
North. The former saw no colour, but this was after the event finished.
The latter observer reported cloudy conditions. A.Cook was probably
observing at the same time as C. Brook, via a couple of remotely
controlled telescopes in Aberystwyth. The results (time lapse imagery
through narrow band filters) will be examined at a later date.
Plato 1972 Mar 24/25 UT 20:38-00:00 Observed by M.Burton (UK,
13.5" reflector, seeing IV-V, Transparency Fair, x180) UT20:38-
20:45 floor was darker in a red filter than in a blue. UT20:47-
20:56 JS Burgess (seeing 2/5, x200, with and without filters)
found everything normal (with and without filters). UT20:00-
20:07 and 21:30-21:35 A.J. Beddoes found everything normal (with
and without filters). However at 23:10 L.Fitton suspected that
the E (IAU?) floor of Plato had a red-brown cast, but could not
be quite sure. UT23:54-00:00 M.Burton, detected the floor was
darker in red than in blue light. Burton did not detect any
colour without the use of filters on either of the two occasions
that he detecetd a blink. In view of the fact that two observers
did not detect anything, albeit not concurrently with the TLP
reports, this TLP is being given an ALPO/BAA weight of 1.
On 1882 Feb 27 at UT 18:30-19:30 an unknown observer reported an
unusual shadow in Eudoxus. Apparently the shadow was seen to be normal
on 1882 Feb 25 at UT 20:30-20:45. The Cameron 1978 catalog ID=228 and
weight=3. Reference: Sirius Vol 15, 167, 1882. The ALPO/BAA weight=2.
Eimmart 1913 Apr 14 UT 01:00 Observed by Pickering (Mandeville,
Jamaica, 6.5" reflector) "By this date crater was clear & at an albedo
~5?. Drawings compare Jan. 16 & Aug.9, 1913." NASA catalog weight=3
(average). NASA catalog ID #344.
On 2009 Apr 04 at UT 21:40 M.C Cook (Mundesley, UK) after receiving a
telephone alert call, examined Plato crater. Although she did not
report C. Brook's slight mottled pink on the floor of Plato, she did
report through that the floor patches looked darker than normal,
especially in blue light and in red they were not visible at all. In
white light they were darker than normal. A.C. Cook was probably
observing at the same time via a couple of remotely controlled
telescopes in Aberystwyth. The results (time lapse imagery
through narrow band filters) will be examined at a later date.
Note that this observation was made after C. Brook said that he could
no longer see his TLP. Therefore this constitutes a different TLP
as there had been a gap of 1 hour since the last TLP report.
Agrippa 1966 Aug 26 UTC 01:52-02:24 Observer: Bartlett
(Baltimore, MD, USA, 5" reflector x437) "Shadow of C.p. was
grayish, wall shad. was normal black, C.p.itself barely disting.
from floor" S=5, T=3. NASA catalog weight=4 (high). NASA catalog
ID #966. ALPO/BAA weight=1.
In 1962 Sep 09 at UT 01:42-02:00 Bartlett (Baltimore, MD, USA,
5" reflector, x180, S=5-4, T=3) observed in Agrippa the shadow
of the central peak to be grayish, not much darker than the
floor, estimated at 3deg bright, whereas on 1962 Jul 12, at col
28deg, in the 5" telescope the dhadow was anormal black and
sharply defined against the floor which was 3 deg bright. The
Cameron 1978 catalog ID=768 and the weight=4. The ALPO/BAA
weight=2.
Shadow of central peak barely distinguishable.
Residual wall shadow normal black. Landslip very
conspicuous, 10 deg bright. Cameron 1978 catalog
TLP ID=1040 and weight=4. Cameron 2006 Catalog
Extension ID=12 and weight=4. ALPO/BAA weight=2.
On 1986 May 18 at UT 20:45-22:25 M. Mobberley (Suffolk, UK, seeing II-
IV) found that the central craterlet of Plato was an ëasily seen "white
splodge" although it was quite difficult to see when imaged with video.
Foley and Cameron comment on IR sensitivity of the CCD camera used. The
Cameron 2006 catalog ID=285 and the weight=1. The ALPO/BAA weight=1.
On 1974 Mar 3 at UT 19:06-20:20 J-H Robinson (Teighmouth, Devon,
UK, 10" refractor, x200, seeing=poor) got a Moon Blink reaction
on the South east wall of Plato, adjacent to the rim shadow and
alerted the BAA TLP network. Ford reported a negtive result at
19:35UT, although Robinson was still getting a blink reaction at
19:40UT, albeit fainter, red at times. Findlay at 19:43-19:52
and 20:00-20:05 saw nothing unusual. Robinson at 19:56UT no
longer saw a blink, but it returned at 20:05UT. Light in bothred
and blue filters. Not steady, but coming and going and gone at
20:09UT. Moore at 19:59-21:00, kennedy at 20:12-20:30, Taylor at
20:48-21:03 and Fitton at 20:05UT all got negative results. The
latter time coincides with Robinson's second blink reaction.
Cameron 1978 catalog ID=1390 and weight=1. ALPO/BAA weight=1.
Parry 1974 April 03 UT 01:10-01:45 Observed by Porter (Narragansett,
Rhode Island, USA, 6" reflector, S=F, T=2) "Darkening of floor &
brightening of central crater. Pulsations for 1 min. Albedo of LTP=2
(fl.), 6.5 (c.p.). Normal floor=3?. Floor seemed darker than earlier &
approached surrounding plain(=2) while N-S streak seemed more
conspicuous. Pulsations same freq. as star excursions so prob. due to
terr. atm. aberr. Streak most conspicuous at 0145h" NASA catalog
weight=2 (poor). NASA catalog ID #1391.
On 1983 Aug 19 at UT 07:15-07:30 D. Louderback (South Bend, WA, USA,
3" refractor, x150) found that the direct sunlit side of Mons Piton
mountain (E) was brighter than (his designated) points C and D and this
happened at the same time as some "blurring"at 07:15UT. The darker
side, between C, A and B were not so dark through a red filter as
through a blue filter (this was the opposite of what had been seen
before at a high sun angle). Louderback suspects that there had been a
colour change since he last observed. He also noted that in red light
the whole lunar disk appeared fuzzy and out of focus. Louderback noted
a 1 sec brightness on the east slope and the whole mountain sharp in
blue light. The Moon's altitude was low though. Brightness measurements
were 4 in blue light and >= 4.6 in red light and "so illdefined almost
blended into plain". Cameon commnets that a telescope colour/focussing
issue may have been at work here! The Cameron 2006 catalog ID=226 and
weight=4. The ALPO/BAA weight=1.
On 1989 Jul 14 at UT 03:28 D. Darling (Sun Praire, WI, USA) found a
darkening in the crater Proclus, but the shadow seen by Cook and Moore,
from a few hours earlier was not seen. The Cameron 2006 catalog ID=371
and the weight=2. The ALPO/BAA weight=1.
Sinus Iridum 2004 May 29 UT 20:44 Observed by Clementelli (Rome, Italy,
102mm diameter Vixen refractor 80-160x, sky conditions: clear, no wind)
"A blue/violet streak, lasting ~10 minutes was seen on the floor of
Sinus Iridum between crater Bianchini and Promontorium Heraclides. The
suspect TLP mybe an effect of instrumental achromatic aberration, but
there is the small possibility that the effect was real." A UAI
observational report. The ALPO/BAA weight=1.
Campanus 2014 Jan 11 UT 22:00-22:30 S.Bush (UK, 6" SCT, x180,
seeing average) made a sketch of the Campanus and Mercator
craters. He found that the central peak of Campanus difficult
to resolve and the floors of both craters were devoid of
detail. Mercator was the lighter shade of the two floors.
Earlier at 19:47 UT M.Brown (Huntingdon, UK) imaged this
region and using Registax resolved details on the floors of
both craters, though Mercator clearly was slightly lighter in
floor shade and had less detail on its floor than Campanus.
The most likely explanation was that it was just seeing
effects blocking the visibility of detail - this of course is
less of a problem for a Registax usid on the CCD image.
However just to be sure this observation is being given an
ALPO/BAA TLP weight of 1, to encourage visual observers to
attempt this observation under similar illumination and
seeing.
In 1875 Jul 14 at 02:00UT Davidson and Loftus (HMS Coronation, Gulf of
Siam Champion Bay, long 99deg, using naked eye and binoculars) observed
"a luminous projections from upper (N?) limb. Phenom. was absent there
on next nite, but a smaller 1 at another pt. (not an LTP? - but many
such repts)". The Cameron 1978 catalog ID= and weight=5. The ALPO/BAA
weight=3.
Archimedes 1979 Oct 01 UT 20:57-21:00 Observed by Cook (Frimley, UK,
13mm Monocentric + Barlow eyepiece, Seeing IV, transparency: thin
cloud) "Red seen on east, blue seen on west - almost certainly spurious
colour".
Bullialdus 1979 Oct 01 UT 21:04-21:07 Observed by Cook (Frimley, UK,
13mm Monocentric + Barlow eyepiece, Seeing IV, transparency: thin
cloud) "Red seen on east, blue seen on west - almost certainly spurious
colour". ALPO/BAA weight=1.
Alphonsus 1959 Feb 18 UT 21:00? Observed by hole (Brighton,
England, 24" reflector) "Red patch (Moore in Survey of the Moon
says Jan. '59). Moore says, Warner, in Eng. saw it bright red in
an 18-in refr. Hedervari & Botha in Hungary saw red patch &
several in US (indep. confirm. ?)" NASA catalog weight=5. NASA
catalog ID #714. ALPO/BAA weight=5.
On 1991 Apr 25 at UT 02:14-02:37 UT D. Darling (Sun Praire, WI,
USA, 12.5" reflector, x64, S=7/10, T=4) found that after
sketching Gassendi, that at 02:14 the central peak was very
bright in red light, and barely detectable in blue light. By
02:26UT a strong blink was noticed on the NW rim, being very
bright in the red filter. Effect still present at 02:32UT. The
effect was not seen earlier at 01:57UT. The Cameron 2006 catalog
ID=425 and weight=4. The ALPO/BAA weight=3.
On 1991 Apr 25 at UT 02:34-02:37 UT D. Darling (Sun Praire,
WI, USA, 12.5" reflector, x64) found that Atlas had spots in
it that were "more intense in blue". No blinks were detected
elsewhere on the Moon apart from Gassendi. The Cameron 2006
catalog ID=425 and weight=4. The ALPO/BAA weight=2.
On 1991 Feb 25 at UT 01:26-01:49 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x248, seeing=10/1, transparency=good) found
Gassendi's western rim to be bright in red and diffuse in blue
light. A sketch was provided. The Cameron 2006 catalog ID=420 and
the weight=4. The ALPO/BAA weight=2.
On 1979 Dec 29 at UT 17:45-18:20 Crick (Merchtem, Belgium, 6"
reflector, x140, seeing=III) found a violet spot in the NW inner wall.
The floor was obscured of detail on the northern half. All other
regions studied appeared normal. Observer unsure if this was a TLP or
spurious colour. Cameron 2006 catalog ID=80 and weight=3. ALPO/BAA
weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17" reflector)
and Fisher (Colfax, CA, 8" reflector, x300) observed a red glow in
Anaximander in the dark part of the Moon. The Cameron 1978 catalog ID=
784 and weight=5. The ALPO/BAA weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17"
reflector) observed a red glow in Aristarchus in the dark
part of the Moon. The Cameron 1978 catalog ID=
784 and weight=5. The ALPO/BAA weight=3.
Gassendi 1979 Dec 29 UTC 20:09-22:04 - Observer: Cook (Frimley, Surrey,
UK) "Colour seen - almost certainly spurious colour and not a TLP".
ALPO/BAA weight=1.
On 1991 May 24 at UT 20:00? Romualdo Lourencon (Sao Paulo,
Brazil, 60mm refractor, seeing=III) detected a circular cloud in
Jansen B and H? (Gazateer report says F and K). "The crater of
the event 100km diam. compared to Copernicus, dark with crescent
obscured region below it. Was S of Jansen. A circular depression
there was before LTP in darkness. Wonders if circ. depr. was
shadow of cloud? The Cameron 2006 catalog ID=428a and the
weight=3. The ALPO/BAA weight=1.
Alphonsus - 1966 Aug 27 UTC 06:05-06:25 observed by Haris, Eastman,
Bornhusrt, Cameron, astronet observers (Tucson, AZ, USA - 21" reflector
x200) and by Corralitos observatory (Organ Pass, NM, USA, 24"
reflector) "W. dark-haloed area varying & the small dark-haloed (40%)
area also varying. Seen by others present incl. the author (WBC) who
attributes the variations to "seeing". Not confirmed by Corralitos MB."
NASA catalog weight=1 (low). NASA catalog ID=968.
Ross D area - 1966 Aug 27 UT 06:06-06:25 observed by Harris, Eastman,
Bornhusrt, Cameron, astronet observers (Tucson, AZ, USA - 21" reflector
x200) and by Corralitos observatory (Organ Pass, NM, USA, 24"
reflector) "Obscuration on E. wall, bright area E. of crater at its
brightest. (I (WSC) was present at obs. but did not note anything not
attributable to bad seeing, but am not familiar with the area in normal
aspect. Others present did not see anything unusual, but Bornhurst &
Eastman confirmed). Corralitos Obs. found due to changing light
conditions. NASA catalog weight=1. NASA catalog ID=967.
ALPO/BAA weight=1.
40-54W, 54N-60N i.e. nr. South? or J.Herschel 1913 Jun 15 UT
22:00? Observer: Maw (Surrey, UK, 6" & 8" refractors) "Small
distinct redish spot which became diffused into a patch as
term. advanced on the plateau NE of the crater South. When the
plateau was on the term. (Goodacre says the crater was
J.Herschel for same date -- 2 different spots or misident. for
one?" NASA catalog weight=3. NASA catalog ID #345. ALPO/BAA
weight=2.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5"
reflector, x300, seeing=fair and transparency=good) through the
red filter at 02:18UT saw a bright area on the west wall of
Aristarchus crater become 2x brighter than normal then faded
back to normal in < 1 min duration. The spot was 8km centred on
sigma=0.682 and eta=0.397. No events seen at Kepler (Apollo 10
watch). The Cameron 1978 catalog ID=1149 and weight=4. ALPO/BAA
weight=3.
On 1969 May 28 at UT 02:18 Delano (Taunton? MA, USA, 12.5"
reflector, x300) suspected a short duration flare up on the W
wall of Aristarchus at 0.682 and 0.397, but it may have been due
to poor seeing. No events seen at Kepler (Apollo 10 watch). The
Cameron 1978 catalog ID=1149 and weight=4. ALPO/BAA weight=1.
On 1975 Feb 22 at 19:00-22:50 Fitton (Lancashire, UK, 8" reflector,
seeing=II-III-I) saw Aristarchus (at 19:00UT) blue, with no obscuration
visible in white, red or blue filters. This was not a telescopic
effect. "Obs. 4.5h. Says it & next 5 nites obs. were due to high
pressure system W. of obs.". Foley found nothing unsual in Aristarchus
in his observing session, which overlapped Fittons. The 1978 catalog
ID=1396 and weight=3. The ALPO/BAA weight=1.
On 1975 Feb 22 at 20:04-22:50 P.W. Foley (Kent, UK, 12" reflector,
seeing=good) observed Prinz to have a diffuse white obsecuration. There
were pulsations of 30-50sec intervals. Effect ceased at 22:50UT and
indeed was fading earlier from 22:35UT. Photgraphs were taken but
showed nothing unusual and no colour. Aristarchus was also negative.
The Cameron 1978 catalog ID=1396 and weight=3. The ALPO/BAA weight=2.
On 1980 Dec 18 at UT20:46-23:58 A.C. Cook (Frimley, UK, 12" reflector,
40-250x, S=IV and transparency good) found the north west wall to be
brighter in red than in blue light, however the effect faded during
21:29-21:41UT and was gone by 22:40UT. There was however spurious
colour on the north west wall. M. Cook (Frimley, UK) found the central
peak to be both bright and diffuse, and brighter in red than in blue
light during 20:52-20:57UT, however at "22:53-23:58 c.p. very bright &
previous area decreased in size. No detail in white or red, just
visible in blue. Sketch (J. Cook) Orange out on NW rim & on NW side of
c.p. Similar effects seen on other craters. (madej) c.p. & W. rim wall
very sharp. c.p. disappears in yellow but still seen in purple.
(pedler) c.p. > red than blue but no obstruction. W wall interior
dusky, darker in blue." A.C. Cook's photo depicts the central peak as
very bright. Cameron 2006 catalog TLP ID=120 and weight=5. ALPO/BAA
weight=2.
On 1992 May 13 at UT 20:16-21:29 several observers reported a TLP in
Plato mostly concerning the visibility of floor craterlets, however
observer seeing varied from III-V. North (UK, 18.25" reflector)
reported "Colouration and floor craterlets very prominent. Seeing
Antoniadi V, Transparancy Poor.". Foley (Kent, UK, 12" reflector
seeing=III-IV) found the floor to be bright and in the better moment of
seeing detected floor craterlets. The WNW spot was misty some of the
time. Moore (Selsey, UK, 15" reflector, seeing V) had very poor seing
conditions. J.D. Cook and M.C. Cook (Frimley, UK, 3.6" reflector,
seeing II-III) used a CCD camera at 22:11 UT. The Cameron 2006 catalog
ID=445 and the weight=5. The ALPO/BAA weight=2.
On 1983 Jul 21 at UT 21:02-23:18 P.W. Foley (Kent, UK, 12" reflector,
seeing=III) found the region around the cleft on the souther rim to be
out of focus - however atmospheric conditions were turbulent until
23:18UT. An unsual dark triangular region (long base against rim) was
seen to extend from the inner rim at 12 o'clock onto the floor for 13-
16km. The crater had lots of detail elsewhere. M. Cook (Frimley, UK)
found the south east to soth west to be obscured again, but not as
badly as she had seen on the 20th July. J. Cook (Frimley, UK) found the
dark region had 2 white bands on the side and the south west wall was
blurred like it was on the 20th July - this time tough colour was not
present. There were also two light patches on the floor. Mosely
(Coventry, UK) observed the south wall at x120 and found the wall out
of focus at the 11 o'clock location. Through a yellow filter he saw a
"white mistiness: on the top of the southern rim and only the south
east cleft could be seen (no colour). By 22:40-23:00 the effect had
cleared up. No dark triangular patch was seen. When Marshall (Surrey,
UK) observed (22:30-03:00) nothing unsual was seen, though a sketch
provided shows a light patch on the floor located at 11 o'clock. All
observations, made by all observers had some atmospheric turbulence,
however trsnparency was good. The Cameron 2006 catalog ID=225 and the
weight=5. The ALPO/BAA weight=3.
Aristarchus 1969 Jul 26 UT 02:15-03:00 Observed by Jose L. da
Silva (Rio de Janeiro, Brazil, 13" refractor) "Unusual
brightness whole time in center of W. inner slope; rest of
crater & Herodotus appeared normal. SW to NW inner slope had
pronounced brightness. Aris. still in dark! Apollo 11 watch)."
NASA catalog weight=3. NASA catalog ID=1186. ALPO/BAA weight=1.
Aristarchus 1969 Jul 26 UT 02:30-03:00 Observed by Mauro Migon
(19" refractor), Julio Nogueira (10" refractor), Wairy Cardoso
(13" refractor) all from Rio de Janeiro, Brazil "Crater was
gray-bluish, different from any other region & unusually bright.
Cardoso saw brightening, used blue, red, green & neutral
filters. Apollo 11 watch, Jose da Silva says obs. no good, obs.
was inexperienced. However it is similar to many other obs. with
much experience)." NASA catalog weight=2. NASA catalog ID
No. 1187. ALPO/BAA weight=1.
On 1992 May 13 at UT 22:30 R. Turner (Wolverhampton, UK, 3.6"
reftactor, x50) noticed that there was a white spot on the WSW rim that
he had not seen earlier. The Cameron 2006 catalog ID=445 and weight=5.
ALPO/BAA weight=1.
Pico 1976 Mar 12 UT 21:00? Observed by Findlay (England?) "A ray seen
extended fr. mt. in SW (IAU?) direction -- likened to a hockey stick.
(not seen in Pickering's photo atlas at col.=53 deg)." NASA catalog
weight=3 (average). NASA catalog ID #1430.
Gassendi 1951 May 17 UT 22:45 Observed by Wilkins (Kent,
England, 15" reflector) "Bright speck glowed for 3s. (meteor ?)"
This was to the W of the central Mts and about the same
magnitude as a 4th mag star to the naked eye. JALPO Vol 5 No 8
p4, quotes a 1s duration. NASA catalog weight=0. NASA catalog
weight=544. ALPO/BAA weight=1.
On 1963 Nov 28 at UT 00:30-01:45 Barr, Greenacre, Hall and
Dungan (Flagstaff, AZ, USA, 24" refractor, and 69" reflector)
observed pink on the outer SW rim and a red spot towards the S of
this. A red spot was seen on the eastern side of Vallis Schroteri
but only by Barr and Dungan. Other features checked for
atmospheric spectral dispersion and chromatic aberation - but the
colours in Aristarchus were not due to these. Smaller 12" scope
checked but no effects seen - presumably due to resolution and
image contrast issues? Pink on the SW rim may have been seen in a
69" scope by Boyce and Ford. ALPO/BAA weight=4.
Aristarchus 1973 Feb 14 UTC 18:31-18:34 observed by Fuger (49N, 8.42E,
75mm refractor, T=1, S=2) "Violet colours on S. of the crater" -
Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61
Herodotus 1966 Jun 30 UTC 03:10-03:35 Observed by Bartlett (Baltimore,
MD, USA) described in the NASA catalog as: "Bright pseudo-peak again
vis. within floor shadow. Peak est. 5 bright. Had seen it at successive
lunations in '66" 4" x280 refractor used. NASA catalog weight=4 (high).
NASA catalog TLP ID No. #950. ALPO/BAA weight=3.
Herodotus 1950 Jun 27 UTC 02:30 Bartlett (Baltimore, MD, USA) reported
a bright point in crater. This is mentioned in the Middlehurst TLP
catalog but not in the Cameron catalog. The source comes from a
Strolling Astronomer article. ALPO/BAA weight=3.
On 1992 Mar 16 at UT 00:39-01:14 D. Weier (Sun Praire, WI, USA, 11"
reflector) at 00:39UT noted some soft, diffused, faint ïllumination
within the shadow projected over the Cobra Head area, though it had a
sharp appearance to the edge of the shadow. D. Darling (Sun Praire, WI,
USA, 11" reflector) was taking photographs from UT 00:51 and making
drawings and visual descriptions. The first 3 photographs in the
sequence have the crater as normal. Four other photographs reveal an
abnormality. Seeing conditions were excellent and a great deal of
surface detail was seen inside Aristarchus crater - however the
apeparance of the Cobra's Head was "washed out" and again shadows near
to this were illuminated. The NASA catalog ID=442 and the weight=5. The
ALPO/BAA weight=3.
On 1891 Oct 14 at UT 18:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw is Schroter's Valley and the vicinity
"Varitions in vapor column and visibility of craterlets A, C and F
(Plate B) in early period at Peru. Directional vaporjet towards F
varied but was always continuous. Later, in Musa. There was a break in
it. D was quiescent in early period. (due to change in telescope &
atmosphere ? Time estimated from given colongitude)." Cameron 1978
catalog ID=273 and weight=3. ALPO/BAA weight=2.
On 2001 Aug 30 at UT20:35-21:15 C. Brook (Plymouth, UK) found a dimming
in the central peak of Alphonsus, however it had returned to normal by
Aug 31 UT 00:29-00:50UT when A.C. Cook (Alexandria, VA, USA, 8"
reflector) examined the area, though there were some slight brightness
variations that were attributed to seeing conditions. The ALPO/BAA
weight=2.
On 1993 Apr 03 at 23:39UT C. Adams (FL, USA, 24" reflector, x168)
noticed a "translucent orange" colour in Gassendi crater within a 35deg
sector (apex at the centre) - row of 3 central peaks extending west -
the western central peak appeared as a dome with a summit craterlet.
The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA
weight=3.
On 1993 Apr 03 at 23:39UT D. Weier (Sun Praire, WI, USA, 7x50
binoculars) observed 2 flashes within the Proclus crater. The Cameron
2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=2.
Cavendish 1956 Jan 24 UTC 20:34-20:45 Observed by Houghton and Warner
(England) "Variable flashes seen from W. inner(?) wall of crater, then
a little inside the terminator. Flashes began with a bright glare at
20:34, were very bright for ~3 min, then faded. Flash rate
approximately every 1.5 sec. Other point like peaks did not flash. Also
indications were seen of reflections of flashes from E. (inner?) wall
and the crater's floor was faintly lit by a glare. Ref: Strolling
Astronomer p27, Vol 45, 2003. 17cm reflector x230. Seeing good-
excellent. NASA catalog assigns this observation a weight of 4 (good).
NASA TLP ID No. #631.
Hislop of England? saw Aristarchus as nebulous at the centre, despite
the fact that elsewhere features were well defined. The Cameron 1978
catalog ID=246 and the weight=3. The ALPO/BAA weight=2.
Aristarchus 1982 Nov 27 UT 20:13-01:00 J-H Robinson (Teighmouth, Devon,
UK) found that the bands of Aristarchus were clearer in red than in
blue light. North found that the sunlit part of the crater was very
bright. M. Cook described the crater as a "kaleidoscope of colour.
Foley observed UT 23:05-01:00 (Kent, UK, Antionadi III, Transparency
Moderate) - Colouration Seen - Ref: BAA Lunar Section Circular. The
Cameron 2006 catalog ID=190 and weight=5. The ALPO/BAA weight=3.
On 1985 Jun 29 at UT 22:56 M.C. Cook (Frimley, UK, seeing poor)
observed that Torricelli B looked as bright as a mountain to its south
west - no colour was seen. Cameron comments that this was similar to
Marshall's 1985 Jul 1 observation. The cameron 2006 catalog ID=278 and
the weight=3.
Herodotus 1971 Jul 05 UT 03:48 Observed by Bartlett (Baltimore,
MD, USA) described in the NASA catalog as: Pseudo-c.p. I=
4(albdeo) appeared to cast a distinct shadow. 1st time seen.
(Apollo 15 photo shows an apparent slight elev. nr. center --
very very low hills? 5" refelctor x79,283x, NASA catalog weight=1
(low). ALPO/BAA weight=2.
Promontory LaPlace 1977 Jan 31 UT 20:49-23:00 Observed by Foley
(England, 11.75" reflector, x360), Prout (England, 4" refractor or
reflector?), Findlay (Dundee, Scotland, 10" reflector, x180, S=VG),
Ford (Dundee, Scotland), Mooney (Dundee, Scotland) "With filters in
eyepiece, tho't he saw a possible darkening in the blue but no
variation in red. Altho. a deep shadow is normal to the W. of the cape
at this period, (then cape must have a slope > 30deg!). he wondered if
shad. was more extensive than usual? Prout noted a dark inky coma-
shaped spot. Dundee obs. concluded it was a shadow. Took photos.
Analysis of them was underway at time of rep't." NASA catalog weight=5
(very high). NASA catalog ID #1462.
On 1963 Nov 28 at UT 05:00-06:00 Greenacre, Barr, Hall and
Dungan (Flagstaff, AZ, USA, 24" refractor) observed a deep violet
area form on the western exterior of Aristarchus, and a less deep
violet area form to the eastern edge of Aristarchus. As these
were becoming stronger, a blue-like haze formed on the sunlit
floor of Aristarchus, that obscured underlying detail. The
ALPO/BAA weight=2.
On 1997 Oct 13 at UT11:09-11:21 D. Rodway (Oamaru, South Island, New
Zealand, 8.5" reflector, x270) saw a deep salmon-pink colouration in
the south east corner interior of the crater Aristarchus. This colour
was confirmed by the observers wife. By 11:21 UT the colour had faded
completely. Rodway had been a lunar observer since 1958, using a wide
range of instruments from 3 inch refractors to 12 inch reflectors and
had observed a TLP in Gassendi back in 1966 (from L'ondon, UK), and so
was an experienced observer. The ALPO/BAA weight=4.
E. of Picard 1948 Aug 16/17 UTC 22:30-02:26 Observed by Moore & Baum
(Chester, UK) described in NASA catalog as: "2 areas E. of Picard
appeared featureless. Cloud-like patches, 12(?)inch reflector. NASA
catalog weight=4 (high). NASA catalog ID No. #509.
Alphonsus 1966 Aug 28 UTC 06:00-08:00 Observers from Astronet (Tucson,
AZ, USA). NASA catalog states: "Brightenings in 2 dark patches & near
fainter (40%) dark patch (40% of way from the c.p. to W. wall). 21"
x200 reflector used. NASA catalog weight=2 (poor). NASA catalog TLP ID
No. 969.
On 1975 Mar 24 at UT19:08-19:45 P.W. Foley (Kent, UK) observed blueness
in the North East (Classical?) corner of Aristarchus. Moon blink seen -
pale in red. Most other observers clouded out. The ALPO/BAA weight=3.
Aristarchus 1972 May 25 UT 19:32-19:38 Observed by Leitzinger (8.75E,
48.75N, Germany, 60mm f/15 telescope T=2, S=2) "Bright point at SE wall
well visible, colour changed to orange shortly before it disappeared"
published in Hilbrecht & Kuveler (1984) Moon and Planets, Vol 30, p53-61.
Promontoroum Agarum. On 2015 Nov 24 UT 00:50-01:15 J. Albert
(Lake Worth, FL, USA, Celestron C11, x224, seeing 4/10,
transparency = 3rd magnitude) observed that this feature was
slightly brighter through a red Wratten 25 filter than
through a blue Wratten 44a filter. ALPO/BAA TLP weight=2.
On 1980 Sep 22 at UT05:00? D. Louderback (South Bend, WA, USA, 8"
reflector, x140 and 2.5" refractor) observed in Promitorium Agarum that
one of his pre-designated points, called "A", through to "C and "D" was
at least 5 brightness points brighter in red than in blue light. The
reverse was true on Sep 25th. Tonight the red seemed to be on a narrow
strip on the western edge. The Cameron 2006 catalog ID=109 and the
weight=3. The ALPO/BAA weight=3.
Eratosthenes 1936 May 04 UT 05:40 Observed by E.P.Martz
(Mandeville, Jamaica) "Detected bright spots on floor" NASA
catalog weight=3 (average). NASA catalog ID #414. Ref. Haas, W.
1942, J.Royal.Ast. Soc. Canada, 36, 398. ALPO/BAA weight=1.
On 1963 Nov 28 at UT 22:30-00:00 Fisher (Colefax, CA, USA, 8"
Newtonian reflector)observed a yellow on crater rims adjacent to
Anaximander. Yellow colour also seen on Aristarchus that night.
The ALPO/BAA weight=1.
On 1979 Dec 02 at UT 00:36 D. Darling (Sun Praire, WI, USA, 12.5"
reflector, x349, seeing? 9-10/10 at 32 deg altitude) observed a bright
flash between Aristarchus and Prinz crater on the illuminated part of
the surface. The Cameron 1978 catalog ID=76 and weight=3. The ALPO/BAA
weight=2.
Aristarchus 1973 Apr 15 UTC 19:03-20:13 observed by Pasternak (53deg
20'N, 7deg 30'E, 75mm reflector) "N wall was blue to violet, beginning
disappearance at 20:08UT., end at 20:13UT." - Hilbrecht and Kuveler,
Earth, Moon & Planets, 30 (1984), p53-61
On 1981 Oct 11 at UT04:45-05:03 D. Louderback (South Bend, WA, USA, 3"
refractor) detected a violet tinge on the dark nimbus of Aristarchus,
however by 05:13 the coloured tinge had gone. Louderback suspects an
atmospheric effect. The Cameron 2006 catalog ID=155 and weight=0. The
ALPO/BAA weight=1.
Aristarchus 1973 Feb 15 UTC 17:07-19:31 Observed by Theiss (51N, 9.67E,
75mm refractor) "Area 4-5 diameters of Aristarchus were coloured
clearly yellow to red" Ref: Hilbrecht & Kuveler (1984) Moon & Planets
30, pp53-61.
Aristarchus - 1969 Jul 27 UT 05:00-07:00 Observed by W.
Cardoso (Rio de Janeiro, Brazil, 13" Refractor) "Brightening.
Filter used, (Jose da Silva says obs. no good, obs.
inexperienced. Apollo 11 watch)." NASA catalog weight=0. SA
catalog ID No. 1188. ALPO/BAA weight=1.
Pythagoras-Cleostratus 1974 Feb 05 UT 01:45,02:45 observed by
Lord (St Anne's-on-Sea, Eng., 3" refractor, x135) "Event
normal in integrated light. Light, full surface detail in red
filter, dark, with full surface detail in blue filter. Other
term. features did not show it. Only E.floor of Pythag.,
Babbage northern crater chain & NW floor of Cleostr.
(According to Fitton's criteria this was a tenuous gas above
the surface. Date given as 5th, but term. was at least 3deg
E. Therefore these features were in the dark then. Ancill.
data given for 6th)." NASA catalog weight=3. NASA catalog
ID=#1387. ALPO/BAA weight=3.
Pythagoras-Cleostratus 1974 Feb 05? UTC 01:45,02:45 observed by Lord
(St Anne's-on-Sea, Eng., 3" refractor, x135) "Event normal in
integrated light. Light, full surface detail in red filter, dark, with
full surface detail in blue filter. Other term. features did not show
it. Only E.floor of Pythag., Babbage northern crater chain & NW floor
of Cleostr. (According to Fitton's criteria this was a tenuous gas
above the surface. Date given as 5th, but term. was at least 3deg E.
Therefore these features were in the dark then. Ancill. data given for
6th)." NASA catalog weight=3 (average). NASA catalog ID=#1387.
Manillius 1969 Jul 27 UT 05:45-05:46 Observed by Wairy Cardoso
(Rio de Janeiro, Brazil, 13" refractor, x360) "Bright spot in
Manillius (Apollo 11 watch, J. M. L. da Silva says obs. no good
because of inexper. of obs)" NASA catalog weight=0. NASA catalog
ID #1189. ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm
reflector, thin streamers of cloud across sky, but no wind)
Aristarchus had a faint pale yellow tint along the rim and the
crater was very bright. No detail seen in in Vallis Schroteri.
Yellow spot also seen on the northern limb (Carpenter and
Pythagoras?). Both effects had been seen the previous night and
were confirmed by friends. Colour still present when observing
stopped at 03:00 UT. The ALPO/BAA weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm
reflector, thin streamers of cloud across sky, but no wind.)
Carpenter had a yellow tint along the W rim. Ywllow tint seen
on Pythagoras and also Aristarchus. Effect had been seen the
previous night and were confirmed by friends. Colour still
present when observing stopped at 03L00 UT. The ALPO/BAA
weight=1.
On 1963 Nov 29 at UT 01:30-03:00 Fisher (Colefax, CA, USA, 20cm
reflector, thin streamers of cloud across sky, but no wind.)
Pythagoras had a yellow tint along the W rim. Ywllow tint seen
on Carpenter and also Aristarchus. Effect had been seen the
previous night and were confirmed by friends. Colour still
present when observing stopped at 03L00 UT. The ALPO/BAA
weight=1.
Menelaus 1969 Jul 27 UT 1969 Jul 27 UT 06:27-07:30 Observed by
Wairy Cardoso (Rio de Janeiro, Brazil, 13" refractor, x360)
"Brightening in Menelaus (Apollo 11 watch, J. M. L. da Silva
says obs. no good because of inexper. of obs)" NASA catalog
weight=0. NASA catalog ID #1189. ALPO/BAA weight=1.
Alphonsus (black spot, upland #1) 1965 Oct 08 UT 05:48-08:23 Observed
by McCord (Mt Wilson, CA, USA, 60" reflector + spectrograph) "Line
depth ratios a/b(H?), c/d (K?) were significantly low for upland #1 &
abnormally high for Alphonsus black spot, but not as pronounced as the
other area was high compared with 23 other areas" NASA catalog weight=5
(very good). NASA catalog ID #899.
Aristarchus, Herodotus - 1967 Sep 16 UTC 23:50-23:55 observed by
Seeliger (Dresden, Germany, 30" reflector, 90, 140x) "Dark streaks on
E.(ast. ?) outside walls of both craters. No shadow from Herod. wall.
Drawings (wall < 18 deg slope if no shadow normally)." NASA catalog
weight=3 (average). NASA catalog ID=#1044.
Aristarchus 1976 Jan 14 UT 20:00-23:00 Observed by P.W. Foley
(Wilmington, Kent, UK) - Deep Violet/Blue spot interior N/WW
corner. No colour seen elsewhere. It was only a blue spot on the
Jan 13. ALPO/BAA weight=1.
Plato 1976 Jan 14 UT 20:50 Observed by J.H-Robinson (Teignmouth,
UK, 26cm Newtonian, Wratten 25 and 44a filters, x200, seeing
fair to poor). The Plato floor patches were clearer in red than
in blue light. ALPO/BAA weight=1.
Schickard 1944 Aug 31 UTC 21:00? Observed by Wilkins (Kent, England)
described in the NASA catalog as: "Saw a mist in it which was gone next
nite. interor was dotted with white spots, contrasting sharply with
dark areas. All very clear on Aug 15 at sunset". 8.5" reflector. NASA
catalog weight=4 {high). NASA catalog TLP ID No. #492. ALPO/BAA
weight=3.
On 2010 Apr 27 at UT 00:10-00:30 and 01:45-02:00 P. Grego (St
Dennis, UK, 20 and 30cm reflectors) noticed a craterlet just
to the east of Briggs and an E-W trending lineament or wrinkle
ridge that did not show on NASA LAC charts. Further checks did
not reveal it on Lunar Orbiter mosaics, but the craterlets
(and not the E-W trending ridge) were visible in LROC
topography data. The ridge is possibly a very low relief
feature that shows only under very shallow illumination
conditions. The ALPO/BAA weight=1 until we get confirmation at
repeat illumination.
Aristarchus 1967 Sep 17 UTC 02:05-02:21 Observers: Delano (Fall River,
MA, USA) and Corralitos Observatory (Organ Pass, NM, USA). The former
used a 12.5" reflector at 400x and the latter a 24" reflector. The NASA
catalog states the following: "A rimtop cratelet on SW rim appeared
almost as bright as c.p. thru a Wratten 25 filter (red) but no brighter
than a lower central wall & rim thru a Wratten 48 (blue) filter. Inner
W. slope of craterlet displayed a bright red color which became less &
less noticeable until 0212h It was no longer brighter than other parts.
At 0217 it flared again brighter red for 1m. (indep. confirm. of
Seeliger for activity in Aris. ?) Corralitos MB did not confirm. NASA
catalog weight=4. NASA catalog TLP ID No. #1045.
ALPO/BAA weight=2.
On 1975 Mar 25 at UT18:50-20:50 P.W. Foley (Kent, UK) observed
blue/grey in Aristarchus. The ALPO/BAA weight=1.
On 1983 Sep 20 at UT 05:08-06:13 Louderback (South Bend, WA, USA,
3" refractor, x150, seeing poor and chromatic aberation on the limb)
detected "purple"in the vicinity of Aristarchus crater and this was
stongest on the north and north west external rims, however there was
no "violet glare"from inside the crater. However the region of the
central peak was very bright - though he could not detect the central
peak. The brightness of the TLP was 4.5 and it should normally be 3
(nimbus area). Near the "big plain"it was 7. The chromatic aberation
seen on the crater. There was also violet on the northen wall of
Herodotus crater and the Cobra Head. Ït appeared dark blue in the blue
filter", the surrounds remained gray". Apparently on the 26th the"ring
was still dark with faint violet - nearly normal". Cameron comments
that the TLP was due to spurious colour. The Cameron 2006 catalog ID=
229 and the weight=3. The ALPO/BAA weight=2.
On 1975 Mar 25 at UT19:59-20:02 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1985 Jul 01 at 02:00-03:00 UT K. Marshall (Medellin, Columbia)
observed thatTorricelli B was very bright - verified using a C.E.D. No
colour was seen though. the Cameron 2006 catalog ID=279 and the weight=
4. The ALPO/BAA weight=3.
Bullialdus 1979 Oct 04 UT 20:24-21:25 JH-Robinson (Devon, UK,
260mm Newt. x200 Seeing Antoniadi IV-V, Transp.=haze) observed a two
bright points on the south west floor patch to be brighter in red than
in blue at 21:12. The effect was still present at 20:36 but back to
normal by 20:43-20:48. Amery (Reading, UK) found a possible brownish
tinge on the west wall, though spuroius colour was present elsewhere on
the Moon. Foley found the WSW corner darkened in blue light. Cook found
pink on south rim of Bullialdus and Pedler found Bullialdus to be a
confused mass with bright and dusky spots and patches - no colour seen.
Cameron 2006 catalog ID=72 and weight=0. ALPO/BAA weight=1.
On 1979 Oct 04 at UT21:05-23:40 P.W. Foley (Kent, UK, 12" reflector,
x360, seeing=II) detected colour in Aristarchus (and also in Bullialdus
- there was a TLP alert at this time for Bullialdus) but nowehere else
on the Moon. Aristarchus had a CED brightness value of 3.8 at 21:05
(though at this time no colour) and 3.4 at 23:40 and the floor was now
slate blue/gray in colour. Other features remained constant in
brightness. The Cameron 2006 catalog ID=72 and the weight=0. The
ALPO/BAA weight=1.
Darwin 1945 Oct 19 UT 23:23 - P.Moore (UK) saw 3 brilliant
points of light on wall. 12" reflector used. NASA catalog ID #
495, NASA weight=3. ALPO/BAA weight=3.
Plato 1945 Oct 19 UT 23:24:30 Observed by Thornton (Northwich,
England) described in the NASA catalog as: "Bright flashes on
the floor near E.wall (meteor?) but others have seen flashes
there too. time given is 1123, must be P.M., local time. MBMW
gives date as Oct 19, which is wrong" Haas (more reliable
account) in his 2003 article in Strolling Astronomer Vol 45,
p28 states" 23cm x220 reflector used - "minute but brilliant
flash of light seen just inside eastern border of walled plain
Plato. Colour was said to be orange side of yellow. NASA
catalog weight=4 & NASA catalog TLP ID No. #494. ALPO/BAA
weight=3.
Aristarchus-Herodotus 1964 Sep 20 UTC 04:15-04:50 - Observers: Crowe &
Cross (Whittier, CA, USA, 19" reflector x390) "Several red spots in
area between the 2 craters. No change in phenom. so stopped observing"
NASA catalog weight=5 (very good). NASA catalog ID #849.
On 1965 Sep 09 at UT 13:20 Presson observed an orange-red srip on the
floor of Aristarchus. Cameron says that this was confirmed later by
Bartlett? The Cameron 1978 catalog ID=892 and weight=2. The ALPO/BAA
weight=2.
Aristarchus 1959 Jan 23 UT 06:20 - Observer: Alter (Mt Wilson,
CA, 60" reflector x700) "Brilliant blue in interior later
turning white. Photos obtained. (MBMW has this entry twice for
diff. dates because source gave UT date as 23rd.)" NASA
catalog weight=5. NASA catalog ID = #712. ALPO/BAA weight=4.
nr.Ross D 1964 Sep 20 UTC 04:55-05:00 - Observers: Harris & Cross
(Whittler, CA, USA, 19" reflector x250) "Opaque, outgassing,
obscuration" NASA catalog weight=5 (very high). NASA catalog ID #850.
Near Aristarchus 1788 Apr 19 UT 20:00? Observed by Schroter
(Lilienthal, Germany) Event described as: "Small area very
brilliant & other bright spots". No additional references
given. NASA Catalog Event #44, NASA Weight=4. ALPO/BAA
weight=1.
Gassendi 1968 Jun 09 UT 21:35-21:45 Observer: Miles (UK, 5"
refractor x120) "Blink inside NW wall. Trees stopped obs. at
2145h. At 2155h no blink vis. (Moore has date as June 6th, 1958
=misprint? as there weren't blink sys. then. Moon at low alt
7deg)." NASA catalog weight=2. NASA catalog ID #1077. ALPO/BAA
weight=2.
On 2013 Jan 25 UT 19:05-19:15 R.Braga (Milan, Italy, 115mm
refractor, x267, seeing III, transparency average) observed that
Plato in general was normal in appearance, but the east rim was
showing a remarkable golden (yellow-golden) hue. This was a
repeat illumination observation for a W.E. Fox TLP observation
from 1938 Feb 14. The observer was wondering whether they were
in some way biased after reading the original report desription
- so uncertain over this being a TLP. In view of uncertainty
ALPO/BAA weight=1.
Plato 1938 Feb 14 UT 00:25 Observed by Fox (Newark, England,
6.5" reflector, x240) "Prominent gold-brown spot on E. wall
with yellow glow without definite boundary, spreading over
floor." NASA catalog weight=3. NASA catalog ID #431. ALPO/BAA
weight=3.
Aristarchus 1976 Jan 15 UT 19:30-20:50 Observed by P.W. Foley
(Kent, UK, 12" reflector) - Aristarchus was abnormally bright
(Cameron suspects that this is a confirmation an explosion
effect seen earlier by Greenland: "On 1976 Jan 15 at 19:45Ut
Greenland (Crawley, UK, 7x50 binooculars) thought that they
saw an "explosion" on the Moon (in the general region of
Aristarchus) for a fraction of a second, followed by a bright
spot in the same position (not an astronomer). After
discussions with others, decided it was a moment of transition
to greater intensity (better seeing?). Moore thinks it was
atmospheric but says it should be on record. Cmeron's 1978
catalog ID=1425 and weight=5". For the Foley report: Cameron
1978 catalog TLP ID=1427 and weight=5. ALPO/BAA weight=1.
Aristarchus 1950 Jun 29 UT 05:20-05:41 Observed by Bartlett
(Baltimore, MD, USA, 3.5" reflector x100, S=6, T=5) "Strong
bluish glare on E..SE wall." NASA catalog weight=4. NASA
catalog ID #529.
(65E, 56N) near Endymion & Mare Humboldt 1968 Jun 10 UT 02:35 Observed
by Provenmire, Robinson et al. (Hamburg, PA, USA, 6" reflector x105,
Seeing=good, alt=20deg) "While waiting for reappearance of Antares from
a grazing occultation at 13+/-4deg P.A. saw a prolonged blue flash
lasting from minimum of 1/2 to a max. of 2.0 s. Several others along
obs. path of several miles also saw it so not a local phenom. (located
38 deg from cusp, azimuth=157 deg?)" NASA catalog weight=5 (very good).
NASA catalog ID #1078.
Galvani B: On 2019 Sep 13 UT 23:26 K. Kilburn (Manchester, UK,
BAA - ED80 refractor, x2 Barlow, Canon 550 DSLR) took a
sequence of images from 23:25-23:27 UT. On one of the images,
taken at 23:26UT there is a blue/green spot on Galvani B.
There is a hint of a possible fade of the spot in the other
images but this is not conclussive. Te spot might just be a
cosmic ray event or a bright part of the crater rim coming
into view under brief exceptional seeing for one frame only.
We need simlar illumination, and if possible topocentric
libtation images, under different atmospheric conditions to
confirm this. It would be great if the images were in colour
too. The ALPO/BAA weight=1.
On 1897 Jun 14 at UT 23:00 Pickering (Cambridge, Mass. USA) observed in
"Schroter's valley and the vicinity variations in vapor colum. Break in
col. toward F and eruption of crater D. 3.4 d after sunrise". The
Cameron 1978 catalog ID=389 and the weight=3. The ALPO/BAA weight=2.
Plato 1980 Oct 23 UT 21:00(+/- approx 1 hour) Observed by
Chapman (Kingston Upon-Thames, UK, 11.5cm refractor, seeing III,
transparency poor. No spurious colour seen. During one (or
both?) of these sessions, a Moon Blink was used and produced no
results on all craters tested on, apart from Plato where the SW
corner of the floor was brighter in red, and also visible in
white light, but viewing was poor and at the limit for his
telescope. ALPO/BAA weight=1.
Cauchy 1969 Jul 29 UT 06:00-06:22 Observed by Claudio
Pamplona and Jackson Barbosa (Fortaleza, Brazil, 2"
refractor) "very bright and clear(?) pulsating 3,3s,3s with
crater illum. then 3s area illum. red & no filter area
pulsated for 22m. Confirmed by Jackson (Apollo 11 watch)".
NASA catalog weight=3. NASA catalog ID #1193. ALPO/BAA
weight=3.
On 1993 Apr 06 at UT23:00 M.C. Cook (Frimley, UK) observed a TLP in
Torricelli B - "Noted that it was > yellow but only visible in mauve +
yellow combined". The Cameron 2006 catalog ID=460 and the weight=4. The
ALPO/BAA weight=2.
Helicon A 1977 Feb 03 UT 2009-23:52 Foley and Moore observed the
crater to be changing in brightness. Jewitt and Elms failed to
detect this. ALPO/BAA weight=1.
Aristarchus 1976 Jan 16 UT 22:00-23:15 Observed by P.W. Foley
(Wilmington, Kent, UK, seeing II) - Aristarchus was tremendously
bright. No colour seen. ALPO/BAA weight=1.
Aristarchus 1973 Feb 17 UTC 22:15-22:45 Observed by Rose, Hunt,
Robinson, Coleman (UK) described in the NASA catalog as: "Rose tho't
W.rampart was diffuse over 1/3 its length. Alerted Hunt who tho't there
was a dark patch (in poor seeing) but the diffuse effect was neg.
Robinson tho't things norm. also Coleman(Seeing=poor). Moore thinks not
real phenom. Rose used a 14", hunt a 6" and Robinson (and? Coleman) a
10" reflector. NASA catalog weight=1 (low). NASA catalog TLP
ID No. 1363
Gauss 1967 Sep 19 UT 02:33 Observer: Chilton (Hamilton, ON,
Canada, 12.5" Gregorian, 200x and a 4" refractor). In a polaroid
filter the west wall was missing. Effect seen in large scope and
also in 4-in finder. His conclusion was that W. wall reflected
polarized light. Cameron 1978 catalog weight=3 (good)
and TLP ID #1047. ALPO/BAA weight=4.
Herodotus 1968 Aug 09 UTC 02:05-03:45 Observed by Lowe (Springfield,
VA, USA) described in the NASA catalog as: "With naked eye saw a bright
spot in NW part of Moon; tho't it was Aristarchus, but 7x binoculars
showed it to be Herod. which was brighter than Aris! still apparent at
0245h, but was normal at 0345h. (at FM, must have been an extraordinary
event)". Naked eye and 7x binoculars used. The NASA catalog assigns
this a high weight of 4. The NASA catalog TLP ID No. is #1087.
Reference for observation is personal communication from the observer
to Winified Sawtell Cameron. ALPO/BAA weight=3.
1974 Mar 08 UT 22:55 R. Livesey (Scotland, UK) noted that
this crater was reddish, but suspected that it was an optical
effect? ALPO/BAA weight=1.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato, though the centre of the activity was offset on one side. This
is a BAA report. The ALPO/BAA weight=1.
Hyginus Nova 1877 May 27 UT 20:37 Observed by Klein (Cologne,
Germany) NASA Catalog Event #190, NASA Weight=1 (Very Low). Event
described as: "New crater 3mi.diam Didn't see anything there 12 yrs.
previously in studies. (Schmidt showed it sometimes dark, sometimes
light, sometimes not at all. Neison studied region minutely 20x from
July 1870-Aug,1875 & did not record it. Gauth says it's not new
(changes there?) "References: Neison, E. The Moon, Longmans, Green and
Co., London, 1876; Astron. Reg. 17, 204, 1877?
Lichtenberg 1955 May 07/08 UT 23:00-01:00 Observer: Jean
Nicolini (Brazil). Ref: Azevedo (1962) NASA catalog weight=1,
NASA catalog ID 590. ALPO/BAA weight=1.
Aristarcus 1975 Feb 26/27 UTC 21:00-00:30 Observed by: Foley (Kent, UK,
12" reflector), Kennedy (Dundee, UK, 8" reflector), Gannon (Middlesex,
UK, 6" reflector), Amery (Reading, UK, 10" reflector), Fitton
(Lancashire, UK, 8" reflector), Turner (Sussex, UK, 8" reflector)
"Foley) Neg. at 2100h. At 2123h NE wall was blue, decr. at 2220h. New
spot at 2221h due N. At 2227h blue fr. ENE to N. & faint blue on rim.
Interior clear detail, but obscur. at ENE-N, (Kennedy) at 2222h got
neg., also at 2229h-2300h. (Gannon) at 2245-2253h got neg. (Amery) at
2315h saw crater bright, bands clear, c.p. bright & very bright pt. to
NE of c.p. N. wall bluisg gray mist extending into N. part of crater.
Got slight blink in red till 2335h. (Fitton) at 2330h saw blue in N.
interior but no blink, no obscur. in long exam. Blue varied with
position in FOV. Polariz. with many rotations showed normal. Blue only
in Aris., none elsewhere till 2359h. (Turner at 2330h got neg. till
2359h. (Amery) at 2359h saw most detail clear. Blink distinct in red.
At 0030h(27th) saw blue mist now gray, seeing deteriorating. Herod. was
normal, (Fitton explains obs. as due to high press. system W. of
obs with temp. inversions). NASA catalog weight=5 (very high). NASA
catalog ID #1399.
"Proclus D. (Bartlett's designation) appeared as a dark spot,
conformable to lts appear. at col. 111.15 deg in '55. Proc. A
(Bartlett's designation) completely invisible the ordinarily easy to
see. Conspic. a' col.103.78deg in 55' & st 110.1 deg in '55, but also
invis. at col. 30.78deg in '56". Cameron 1978 catalog ID 665 and
weight=4. Observer based in Baltimore, MD, USA and used a 5" reflectore
x180 and S=4 and T=5. ALPO/BAA weight=2.
Aristarchus 1972 Mar 30 UTC 23:03-23:05 Observed by Kufer (11.5E,
48.25N, 110mm reflector) "A sudden brightening, but observations
limited by cloud" Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol
30, pp53-61.
Observed by Bartlett (Baltimore, MD, USA) described in NASA
catalog as: "Strong viol. gl. on EWBS, whole length of E. wall.
Dark viol. on nimbus pale viol. on plateau m. Area was hazy --
couldn't focus it. Brilliantly clear nite.3.5(?) reflector x180
used. NASA catalog wight=4, NASA catalog ID #665. ALPO/BAA
weight=2.
Mare Crisium 1965 Oct 11 UTC 05:15 Observed by McCord (Mt Wilson, CA,
100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K)
abnormally high compared with 23 other areas (including
Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
On 2012 Jan 09 UT 21:01-21:08 Hahn crater was imaged by N. Hazel
(Beverley, Yorkshire, UK, Nikon D7000 with 70-300 zoom at max,
with 2x teleconverter, at f9, 1/320 sec, ISO 400 – tripod
mounted, mirror up), A series of images were taken. The 21:06 one
showed a grey column cutting across the central floor of the
crater from the west and then bisecting the eastern rim. All
detail inside is completely invisble. Some (but not all) of the
other images showed a more blurred view of this feature. It's
possible that this was a seeing ripple effect, or just the
natural appearance of shadings on the Moon at this time, however
for now this will be given an ALPO/BAA weight of 1.
In 1958 aug 20 at UT 20:00? an unknown observer noticed that
Promontorium Agarum appeared filled with fog or mist. The Cameron 1978
catalog ID=510 and the weight=3. The ALPO/BAA weight=2.
Aristarchus 1970 Apr 22 UT 07:00
Observed by Thomas.
Plato 1869 Sep 21-22? UTC 00:00? Observed by Gledhill (Halifax, UK, 9"
refractor) "Group I craters-notable illum. accomp. by a single light on
a distinct spot. (similar to Aug. obs. & if same phase as Ap 1870, date
=22nd.). NASA catalog weight=2 (poor). NASA catalog ID #164.
Mare Crisium 1965 Oct 11 UTC 07:32 Observed by McCord (Mt Wilson,
CA, 100" reflector + spectrogram) "Line depth ratios a/b (H),,
c/d (K) abnormally high compared with 23 other areas (including
Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog
ID 902.
Aristarchus 1966 Jul 04 UTC 06:15-06:35 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x142) & by Corralitos Observatory
(Organ Pass, NM, USA, 24" reflector). "S.region of floor was granulated
& dull est. at 6 & pale yellow-brown tint. Rest of crater est. 8 bright
white. Not confirmed by Corralitos MB" S=5, T=4. NASA catalog weight=4
(high). NASA catalog ID #955. ALPO/BAA weight=3.
On 1970 Aug 12 at UT21:00? an unknown observer commented about Plato:
"Light #22, remarkable increase in brightness. #32 subsided & #14 shone
out then faded & #16 brightened. (Fort says that till Apr. 1871 selenog
recorded 1600 obs. of fluctuations of lights in Plato & had drawn 37
graphs of indiv. lights. These were deposited in the library of the
Royal Astronomical Society by Birt)." The Cameron 1978 catalog ID=169
and the weight=3. The ALPO/BAA weight=2.
In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60"
reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in
magnitude in 2.5 hours - a photometric measurement. The average
magnitude for this age is 4.03, so therefore the crater had brightened
by two times above normal. The Cameron 1978 catalogID=769 and the
weight=5. The ALPO/BAA weight=3.
Aristarchus 1969 Jun 30 - Jul 01 UT 23:37-00:00, 00:02-00:05
Observers: Moore (Sussex, UK, 12.5" reflector x360), Altizer,
Arabanel (Corralitos Obs., Organ Pass, NM, USA, 24" reflector)
"SE wall was orange, detected by Eng. MB Fading by 2353h, only a
trace at 2358h & disappeared at 0000h. Later at 0002-0005h
suspected again. Alt. was low. Bluring around crater seen at
Corrralitos Obs. in the MB, but immeasurable on photos." NASA
catalog ID #1150, NASA weight=2(for Moore), 5 (for Corralitos
Obs). ALPO/BAA weight=3.
Aristarchus 1939 Dec 27 UT 08:00? Observed by Barcroft (Madera, CA,
USA, 6" reflector) "Faint bluish mist on inner W. wall (according to
Firsoff it was right after SR, but this can't be as age=16d & SR comes
at 11d)" NASA catalog weight=3 (average). NASA catalog ID #464.
Mare Crisium 1965 Oct 11 UTC 10:10 Observed by McCord (Mt Wilson, CA,
100" reflector + spectrogram) "Line depth ratios a/b (H),, c/d (K)
abnormally high compared with 23 other areas (including
Aristarchus?)." NASA catalog weight=5 (very high). NASA catalog ID 902.
On 1980 Oct 25 at UT03:53-05:21 D. Louderback (South Bend, WA, USA,
2.5" refractor, seeing=1-2 and transparency=2) found Proclus to
have a slight yelloow tinge on the north wall. the brightness of
Proclus was 9 and that of Eimmart 8. Cameron 2006 catalog ID=117 and
weight=3. ALPO/BAA weight=3.
On 1980 Oct 25 at UT03:53-05:21 D. Louderback (South Bend, WA, USA,
2.5" refractor, seeing=1-2 and transparency=2) found Promontorium
Agarum to have a slight blue tinge - apparently similar to that seen on
Eimmart from an earlier date. Cameron 2006 catalog ID=117 and weight=3.
ALPO/BAA weight=2.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1975 Mar 28 at UT22:30-23:42 P.W. Foley (Kent, UK) observed
orange/red in Aristarchus. The ALPO/BAA weight=1.
On 1989 Jun 20 UT 0628-06:58 R. Manske (Sun Praire, WI, USA, 1"
refractor) discovered blue on the north west inner wall and red on the
south east outer wall. At 05:39 he could see the blue but not the red.
No colour was detected on Tycho, but he thought that he could detect a
pinkish colouration over the whole Moon. The Cameron 2006 catalog ID=
367 and the weight=1. The ALPO/BAA weight=1.
Aristarchus (Bartlett, 1965 Oct 12 UTC 02:15-20:25, 5 inch
reflector x280) - NASA catalog quotes "Nimbus was only a dark
violet hue". NASA catalog weight=4. NASA catalog ID #904.
ALPO/BAA weight=1.
Aristarchus 1975 Feb 27/28 UT 22:00-01:00 Observers: Robinson
(Teignmouth, England - 10" reflector), Fitton (Lancashire, England -
8" reflector), Amery (Reading, England - 8" reflector), Mills
Observatory (Dundee, Scotland, 10" reflector) - NASA catalog states:
"Robinson at 2200h got blink on E.wall, stong at 200x till 2225h.
(Fitton) at 2200h (moon low) at 200x saw vivid blue to N., vivid yellow
& orange to S. in Aris., Proc., Menelaus, & many other bright craters
til 2300h. Then Aris. less blue & mare obj. no colors. No blinks in
these craters. No obscur. Polariz. normal till 2330h using many
rotations. At 2330h Aris. blue in N. but fainter. Only Proc. remained
blue till 0020h (28th). Photo-electric scan at 2340h was normal for
Aris. (600 microamps) compared with Tycho (900 microamps), total of 10
scans. all neg. with 15km resolution. Blink neg. but blue still vis. in
N. in white light till 0030h. At 0100h (S=III at 200x) Proc. clear of
blue, Aris. nearly clear, blink neg. (Amery) at 2310h saw blue on N.rim
of Aris., no color in other craters at 300x. No blink in Aris. S. part
of Aris. indistinct but abnormal. No blink till 2350h. (Mills
Observatory) at 0000h checking rep'ts got blink in S.part of Aris. Blue
only in N.part. Similar blue in bright craters in E.hemisphere & blue
halo on S.limb till 0020h. Concluded due to optical effects. Fitton
says due to atm. effects from high press. sys. W. of obs (blue on one
rim & red on other due to chrom. aberr. ? If spurios, should get no
blink & similar crater conditions should exhibit same phenomena all
over Moon). NASA catalog weight=5. NASA catalog TLP ID No.
1400. ALPO/BAA weight=3.
Proclus 1975 Feb 27/28 UTC 22:00-01:00 Observers: (Fitton) at 2200h
(moon low) at 200x saw vivid blue to N., vivid yellow & orange to S. in
Aris., Proc., Menelaus, & many other bright craters til 2300h. Then
Aris. less blue & mare obj. no colors. No blinks in these craters. No
obscur. Polariz. normal till 2330h using many rotations. Only Proc.
remained blue till 0020h (28th). Photo-electric scan at 2340h was
normal for Aris. (600 microamps) compared with Tycho (900 microamps),
total of 10 scans. all neg. with 15km resolution. Blink neg. but blue
still vis. in N. in white light till 0030h. At 0100h (S=III at 200x)
Proc. clear of blue, Aris. nearly clear, blink neg. Concluded due to
optical effects. Fitton says due to atm. effects from high press. sys.
W. of obs (blue on one rim & red on other due to chrom. aberr. ? If
spurious, should get no blink &similar crater conditions should exhibit
same phenomena all over Moon). NASA catalog weight=5 (very high). NASA
catalog TLP ID No. #1400.
On 1981 Oct 15 at UT06:03-06:51 D. Louderback (South Bend, WA, USA, 3"
refractor, seeing=1-2 and transparency=5) observed that the brightenss
of 4 sun lit bright spots differed in red and blue light. "Appeared as
a cross. the 2 points A & D on his sketch (index) were affceted. They
were 10 pts dimmer in red than blue. Not due to seeing as they did not
fluctuate (as did the seeing)." This report came from the Cameron 2006
catalog and had an ID No. of 156 and a weight=3. The ALPO/BAA weight=2.
On 2009 Apr 12 at UT 00:00 C. Brook (Plymouth, UK, 2" refractor, x25,
Edmund Optics filter No. 80 (blue) and No. 47 (light rose/purple))
noted that the rays of Proclus stood out better in light rose/purple
than in blue. Not just the rays crossing Mare Crisium. The ALPO/BAA
weight=1.
On 1992 May 19 at UT 01:00-02:05 P. Moore (Selsey, UK, 15" reflector,
x260) saw at 01:25UT an unmistakable red-orange glow on the south and
south-east rim with the "Spur". Apparently Chapman (Kent, UK) detected
it easily. At 01:33UT the colour was barely visible. No TLP alert was
issued because the souther edge of Mons Pico also exhibited a hint of
colour, and anyway the seeing conditions were poor. Despite this no
other features revealed colour. The Cameron 2006 catalog ID=446 and the
weight=0. The ALPO/BAA weight=1.
On 1992 May 19 at UT 01:00-02:05 P. Moore (Selsey, UK, 15" reflector,
x260) noted that the southern slope of Mons Pico had a tint of colour.
No other features revealed colour apart from Aristarcus, where a TLP
was going on. The Cameron 2006 catalog ID=446 and the weight=0. The
ALPO/BAA weight=1.
Alphonsus 1966 Sep 02 UTC 03:16-04:18 Observed by Whippey (Northolt,
UK, 3" refractor) & Corralitos Observatory (Organ Pass, NM, USA, 24"
reflector) "A series of weak glows, final flash at 0418h. Not confirmed
by Corralitos MB" NASA catalog weight=3 (average). NASA catalog ID 971.
Aristarchus 1970 Apr 23 UTC 07:00
Observed by Thomas
Aristarchus and vicinity 1975 Feb 28 UT 03:20-03:45 Observers LeCroy
Jr & Sr (Springfield, VA, USA). NASA catalog states: "Orange flash in
crater that then spread over whole crater then turned to bluish haze at
0320h. Couldn't see surface underneath. All W. hemisphere was brighter
than normal. Blue was only on Aris. Rest of Moon was examined for
phenom. but none seen elsewhere. Gone by 0343h (just a few hrs after
Eng. obs. -- not likely U.S. obs. had temp. inversion high press. sys.
W. of him too). 4.5" reflector 45x, 150x. NASA catalog weight=4.
NASA catalog TLP ID No. #1401. ALPO/BAA weight=4.
Plato 1966 Sep 02 UT 0625 Observed by Kelsey (Riverside, California,
USA, 8" reflector x300) "Landslip at west would not focus. (Ricker not
certain it was a real LTP)." NASA catalog weight=2 (low). NASA catalog
ID 973.
In 1950 Jul 02 UT07:22 Bartlett (Baltimore, MD, USA, 3.5"
reflector) saw no dark bands on the inside of Aristarchus,
despite detail being seen elsewhere. He would normally have
expected to have seen bands at this colongitude, based upon past
observations. The ALPO/BAA weight=2.
Aristarchus 1983 Oct 23 UT 19:00-01:30 Observer: Foley (Kent, UK,
12" reflector, seeing=II) noiced at 19:00UT an extended bright
spot on E wall and extending beyond. This was brighter than other
areas of the crater. There was also occasional star-like
glistening. Foley comments that the inside of Aristarchus was
slightly obscured. The TLP started fading from UT20:30 and
finished by 01:30UT. six out of nine independent observers
confirmed the effects seen. In total 14 observers observed, 9
reported back and 6 found abnormalities in Aristarcus though all
encountered variable seeing conditions - some had spurious
colour. Cameron comments that this was one of the best
recorded/confirmed TLP events. All CED brightness measurements
obtained were very high. Moore, Nicolson and Clarke (5" refractor
and 15" reflector, 230-350xseeing III) found the crater to be
very bright at 19:11UT through a 5" refractor and there was a
blob on the east rim (Bartlet's EWBS?) at 19:14UT. Nicolson also
saw a very bright star-like area on the eastern wall but this was
not defined as it usually is. The crater was also very bright at
22:43UT using the 15" reflector available to these observers. At
01:07UT they used a Moon blink and discovered that the bright
region was bright in blue light and less bright in red - although
this was not a detactable blink when switching rapidly between
filters. They found that the crater had returned to normal by
01:15UT. M.C. Cook (Frimley, UK, seeing III-IV) observed a large
diffuse spot on the east of the crater that was brighter in blue
than in red light and the CED device gave a high reading. J.D.
Cook (Frimley, UK, seeing III-IV) made a skecth that showed the
bright spot extended on the east wall - again the CED reading was
high and a lot of detail was visible on the floor. A.C. Cook
(Frimley, UK, seeing III-IV) also noted remarkable detail and the
bright (as confirmed by CED) blob on the eastern rim. G. North
(Sussex, UK, seeing III-II) also confirmed the bright blob on the
eastern wall. Wooller found the north west wall was a dirty
yellow colour - though no colour was seen elsewhere in or outside
the crater. Mosely found the crater to be bright and his sketch
revealed the extension of the bright blob on the eastern rim and
again a great deal of interior detail. Amery (Reading, UK, seeing
III) found Aristarchus to be "a brilliant splash against dulled
background in violet filter, especially polarizing filter. CED +
polarizer readings high, but not as high as previous night".
Mobberley (Suffolk, UK, seeing III-IV) remarked that "spurious
colour a total mess around Aristarchus & nothing abnormal seen".
A photograph was taken at 20:50UT reveals the bright blob and
entire detail. Peters (Kent, UK, seeingIII-II) observed
Aristarchus with a UV screen from 20:15-21:23UT and comented that
althogh being very bright, there was no variation between white
and UV. It was checked with a Moon Blink device and the radial
bands were clearly seen in white light, < in blue. The Cameron
2008 catalog ID=233 and the weight=5. The ALPO/BAA weight=4.
On 2002 Sep 23 at UT22:45-23:56 C. Brook (Plymouth, UK) noticed that
the bands inside Aristarchus varied (UT22:45-22:56) in definition
whilst the rim of Herodotus and the rays of Kepler and Copernicus
remained sharp. These bouts of variation were 1-2min in duration. At
23:56UT when he checked again the periodic blurrings of the bands were
still present. The observer suspected atmospheric effects. M.Cook
(Frimley, UK) observed 22:00-22:30 and could see only 2 bands on the
west wall - but this may have been because of poor transparancy. The
ALPO/BAA weight=1.
Aristarchus 1964 Oct 23 UTC 02:35-02:45 Observed by Bartlett
(Baltimore, MD, USA, 3" refractor, 133 & 200x, S=3-5, T=4) "South floor
region granulated, 6 deg bright with very faint trace of pale yellow
color; rest of crater 8 deg bright." NASA catalog weight=4 (good), NASA
catalog ID #859.
In 1962 Sep 16 at UT08:05 Spirad (Victoria, B.C., Canada, 48"
reflector) obtained a spectrum with a UV emission, in H & K lines
compared to Jupiter and Mars. II-AO plates, 6A/mm dispersion.
Fraunhofer lines much shallower than planetary ones. (whole
Moon). The Cameron 1978 catalog ID=770 and weight=5. The ALPO/BAA
weight=4.
On 2013 Dec 19 N. Longshaw (Oldham, UK, Seeing III, TAK FS 78
APO Refracror) observed a diffuse area east of the central
peak of Geminus, to be sepia/brownish tint. The ALPO/BAA
weight=3.
On 1988 Jul 31 at UT 07:09-08:10 D. Darling (Sun Prairie, WI, USA,
12.5"reflector, seeing=7/10 and T=3) did not detect the dark region on
the south east floor of Proclus (the TLP from a few days earlier), but
did see 2 "linear mounds". The Cameron 2006 catalog ID=335 and the
weight=0. The ALPO/BAA weight=1.
On 1959 Nov 17 at Ut 22:00 an unnamed observer saw a light in Plato.
The Cameron 1978 catalog ID=725 and weight=1. The ALPO/BAA weight=1.
Gassendi 1966 Sep 03 UT 01:11-01:46 Observers: Moore (Armagh, N.
Ireland, 5 & 12" reflectors), Moseley (Armagh, N. Ireland, 10"
refractor), Corralitos Observatory (B.Middlehurst, Organ Pass,
NM, USA, 24" reflector), Cave , Gill (UK? 6" reflector x365),
"Eng. moon blink sys. detected red glows on c.p. & round it.
Independently seen by Cave. Not confirmed by Corralitos M.B."
NASA catalog ID#975, NASA weight=5. ALPO/BAA weight=4.
Aristarchus 1969 Aug 01 UTC 04:40-05:38 Observed by C. Pamplona
e J. Barbosa(Fortaleza, Brazil using 12" x235 and 5" x100
reflectors) - NASA catalog reports: "Enhanced area in SE wall,
no pulsation, no color. Usually NW wall is brightest. After
0538h NW region was brightest again, (Apollo 11 watch, indep.
confirm. ?)" NASA catalog weight=3. NASA catalog TLP ID No. #
1196. ALPO/BAA weight=2.
Atlas 1969 Aug 01 UT 03:36-04:00 Observed by Pither
(Nottinghamshire, England) NASA catalog reports: "Eng. moon
blink in crater at 0336h close to E. wall, NE of central
feature. Oval in shape & dirty brownish color & hazy. Started
fading at 0345h but may have been due to dawn, Neg results on
other features, (Apollo 11 watch)." 12" x450 reflector used.
NASA catalog weight=3. NASA catalog TLP ID No. #1195.
ALPO/BAA weight=3.
Macrobius 1971 Mar 15 UT 02:07-03:15 Observed by Sparks (Exmouth, UK,
6" reflector x400) "Strong pink color extending whole curve of crater's
illum. wall, starting & ending in shadow side. Color grew deeper, then
faded & ended at 0315h. Changed eyepieces. No other feature had this
tho. looked for. Survived many separate powers of eyepieces."
NASA catalog weight=2 (low). NASA catalog ID #1289.
In 1963 Oct 05/06 at UT 23:35-00:45 Scarfe (Cambridge, UK, 36"
reflector, transparency: hazy - high cirrus) observed very strong
luminescence at 50% of the total light (recorded photo-electrically) at
Hydrogen alpha (656nm), Sodium-D (589nm) and Fe(RMT 15) 539.71nm,
542.97nm, 543.45nm, 544.69nm, 550.15nm, and 550.68nm. The Cameron 1978
catalog ID= and weight=5. The effect was especially strong in
Aristarchus at 545.0nm. The Cameron 1978 catalog ID=776 and weight=5.
The ALPO/BAA weight=5.
In 1963 Oct 05/06 at UT 23:35-00:45 Scarfe (Cambridge, UK, 36"
reflector, transparency: hazy - high cirrus) observed very strong
luminescence in Copernicus at 50% of the total light (recorded photo-
electrically) at Hydrogen alpha (656nm), Sodium-D (589nm) and Fe(RMT
15) 539.71nm, 542.97nm, 543.45nm, 544.69nm, 550.15nm, and 550.68nm. The
Cameron 1978 catalog ID= and weight=5. The Cameron 1978 catalog ID=776
and weight=5. The ALPO/BAA weight=4.
In 1963 Oct 05/06 at UT 23:35-00:45 Scarfe (Cambridge, UK, 36"
reflector, transparency: hazy - high cirrus) observed very strong
luminescence in Kepler at 50% of the total light (recorded photo-
electrically) at Hydrogen alpha (656nm), Sodium-D (589nm) and Fe(RMT
15) 539.71nm, 542.97nm, 543.45nm, 544.69nm, 550.15nm, and 550.68nm. The
Cameron 1978 catalog ID= and weight=5. The Cameron 1978 catalog ID=776
and weight=5. The ALPO/BAA weight=3.
Lictenberg Area 1940 Oct 19 UT 07:11 Observed by Barcroft
(Madera, CA, 6" reflector) Pronounced reddish-brown or orange
color. Less marked than previous night, & slight on 22nd. See
#'s 477; 478". NASA catalog weight=3. NASA catalog ID #476.
ALPO/BAA weight=2.
Aristarchus 1970 Apr 24 UTC 07:00
Observed by Thomas
Aristarchus 1961 Nov 27 UTC 23:30 Observed by Kozyrev (Crimea, Soviet
Union) described in NASA catalog as: "Emission lines in spectrum of
c.p. in red & blue, H2 identified, (he had obtained C2 & Swan bands in
Alphonsus in '58 & '59" 50" reflector used. NASA catalog weight=5 (very
high). NASA catalog TLP ID No. #755.
On 2009 Jun 11 at UT01:00-01:15 C. Brook (Plymouth, UK, 2" refractor,
x25, seeing excellent and no cloud or haze) obsrved fluctuations in the
brightness of Aristarchus crater. No brightness fluctuations were seen
elsewhere. The ALPO/BAA weight=1.
Aristarchus 1964 Aug 26 UT 02:00-03:00 Observed by Genatt, Reid,
(Greenbelt, MD, 16" reflector, x360, S=P-G), and Lindenblad
(Washington, DC, USA, 26" refractor) "Red and Blue bands. Grew
thinner & shorter. Alerted Naval Obs. One obs. tho't he saw
Phenom. but not sure. (confirmation ?). (prof. astronomers, but
not lunar observers)" NASA catalog weight=5 (very high). NASA
catalog ID #844. ALPO/BAA weight=3.
In 1957 Feb 10 at UT 22:00 an unnamed observer repirted a TLP somewhere
on the Moon. The reference for this comes from: Palm, A. 1967, Icarus,&
(2), p188-192. The cameron 1978 catalog ID=662 and weight=0. The
ALPO/BAA weight=1.
Atlas 1954 Mar 23 UTC 00:00? Observed by Delmotte (France?) "Violet
tint in crater" NASA catalog weight=3 (average). NASA catalog ID #562.
Aristarchus 1979 Nov 07/08 UT 23:10-00:00 Observed by R.H.
Ricketts (Lewis, Sussex, UK, 10" reflector, x300, Seeing
Antoniadi II) - obscuration and colouration seen. ALPO/BAA
weight=2.
Plinius 1889 Sep 13 UTC 23:00? Observed by Thury (Geneva,
Switzerland) NASA Catalog Event #265, NASA Weight=3 (Average)
Event described as: "Unusual black spot with intensely white 4"
border over CP. Normal aspect is 2 craters. #260 says that
Gaudibert saw same thing in Sep. - confirmed". References:
Nature 41, 183, 1890 (April). The ALPO/BAA weight=1, this is
probably perfectly normal.
Plato 1982 Sep 07 UT 0330-0430. K.P. Marshall (Columbia, 12"
reflector, seeing III) saw no craterlets on the floor of Plato,
but what he considered unusual was an extremely bright short
section of the north rim of Plato - far brighter than, any other
part of the rim, and only slightly less bright than Mons Piton.
ALPO/BAA weight=1.
Plato 1915 Apr 03 UTC 23:00? Observed by Markov (Russia) NASA
catalog describes observation: "Appearance of bright spots
that could even be seen in a 43mm (2-in) tube" 2" refractor
used. NASA catalog weight=2. NASA catalog TLP ID NO. #350.
ALPO/BAA weight=2.
Near Aristarchus 1970 Mar 26 UT 17:00 Observed by Sekiguchi,
Maisumoto (Tokyo, Japan, 36" reflector) "Pts. N & S of crater
were brighter by 0.3 & 0.2 mag. respectively than normal --
far beyond limits of error. Color index (CI) also showed less
depend. on phase by 0.1-0.2 mag. Did not show reddening dur.
enhancement. Polariz. was less by 1-2%. Photog. photom.
showed brightening over whole moon. Resolution = 2,3 km" NASA
catalog weight=5 and catalog ID #1236. ALPO/BAA weight=3.
North of Kepler 1970 Mar 26 UT 17:00 Observed by Sekiguchi, Maisumoto
(Tokyo, Japan, 36" reflector) "Photog. photom. showed brightening over
whole moon. CI N. of Kepler enhanced by 0.5 mag. Resolution = 2,3 km"
NASA catalog weight=5 (Very high). NASA catalog ID #1236.
1886 Oct 16 UTC 22:00 Observed by Lihou (France?) "Unusual phenomena ?
(drawing)" Ref Sirius, Vol 20, 45 p69 (1887). NASA catalog weight=1
(very low). NASA catalog ID #252. ALPO/BAA weight=1.
On 1975 Mar 02 at UT05:00-06:18 P.W.Foley (Wilmington, Dartford,
Kent, UK, 12" reflector) observed blueness along the southern
wall of Plato. This is a BAA observation. Note that it
is assumed that this is the same as Cameron's catalog 1975
Mar 02 UT 01:00 or 23:00 report by an Unknown English Observer
who apparently observed colour in Plato (Red or violet). The
Cameron 1978 catalog ID=1402 and weight=1. The ALPO/BAA
weight=1.
Plato 1966 Aug 05/06 UT 23:37-02:58 Observers: Corvan, Moseley
(Armagh, N.Ireland, 10" refractor, x280) and Ringsdore (England,
8.5" reflector) "Several red glows at different places at
different times. Each lasted a few min. (not confirmed by
Ringsdore. Given as 8/4 in MBMW) NASA catalog weight=4, NASA
catalog ID=#964. ALPO/BAA weight=2.
On 1890 Oct 03 at UT 22:00 Muller of Germany saw in Posidonius an
unusual shadow (Moon low? and crater in dark part-terminator 2 deg past
west wall - according to Cameron). Cameron 1978 catalog ID=267 and
weight=3. ALPO/BAA weight=2.
Copernicus 1955 May 12 UTC 03:40 Observed by Firsoff (Somerset, UK,
6.5" reflector x70) "Pico was invis. in violet filter. Copernicus was
bright in it." NASA catalog weight=4 (high). NASA catalog ID #591.
Mt Pico 1955 May 12 UTC 03:40 Observed by Firsoff (Somerset, UK,
6.5" reflector x70) "Pico was invis. in violet filter. Copernicus
was bright in it." NASA catalog weight=4. NASA catalog ID #591.
ALPO/BAA weight=3.
Agrippa 1966 Sep 05 UTC 04:47-05:00 Observed by Bartlett (Baltimore,
MD, USA, 5" reflector, 283x) "Within the wall shadow, the landslip was
faintly illum., est. at 4, & distinctly brownish". S=6-1, T=3-1. NASA
catalog weight=4 (good). NASA catalog ID #975.
On 1985 Sep 04 at UT 22:15 A.V. Arkhipov (Russia) detected a bright
flash in Mare Tranquilitatis that lasted < 1 second and had a diameter
of < 2 arc seconds i.e. the limit of seeing resolution. The Cameron
2006 catalog ID=280 and the weight=3. The ALPO/BAA weight=3.
Aristarchus 1961 Nov 27 UTC 23:30 Observed by Kozyrev (Crimea, Soviet
Union) described in NASA catalog as: "Emission lines in spectrum of
c.p. in red & blue, H2 identified, (he had obtained C2 & Swan bands in
Alphonsus in '58 & '59" 50" reflector used. NASA catalog weight=5 (very
high). NASA catalog TLP ID No. #755.
Alphonsus 2002 Sep 27 UT 00:00-02:15 Observed by Clive Brook (Plymouth,
UK) "Central peak was bright 00:00 UT but had faded by at least 2 deg
on the Schroter scale - no colour seen. Observer continued observing
until 02:15 UT but central peak had dimmed considerably by then"
Aristarchus 1964 Aug 28 UT 04:30-04:50 Observed by Bartlett
(Baltimore, MD, USA, 4" reflector x240) "Faint blue-viol.
radiance on EWBS; dark viol. on nimbus. S.floor dull, 6,
granulated, distinct yellow-brown; rest of crater 8 bright.
NASA catalog weight=4. NASA catalog ID #847.
ALPO/BAA weight=2.
On 1958 Dec 02 at UT 06:00 an unknown observer detected a TLP on the
Moon. The reference for this is from Palm, 1967 Icarus. The Cameron
1978 catalog ID=709 and weight=0. The ALPO/BAA weight=1.
On 1975 Mar 04 at UT03:46-06:01 P.W.Foley (Wilmington, Dartford,
Kent, UK, 12" reflector) observed bluesness along the southern
wall of Plato. This is a BAA observation. The Cameron 1978
catalogue ID is #1403 and has a weight of 1. The ALPO/BAA
weight=1.
On 1975 Mar 04 UT 04:01-05:30 P.W. Foley (Wilmington, Dartford, Kent,
UK, 12" reflector, seeing excellent, no turbulence, slight frost and
mist) had a suspicion of blue on the entire north wall of Aristarchus
crater - not seen visually but detected with a Moon Blink device.
Crater extremely bright and unable to penetrate it visually.
Surrounding areas charp. No red/orange on south wall. All other areas
proved negative. Photographs taken. No change in appearance over this
time. ALPO/BAA weight=2.
1965 Oct 16 UTC 08:05-10:00 Observed by McLarin (Huntsville, AL, 20"
reflector), Bates, Hall (Prt. Tobacco, MD, 16" reflector), Hardie
(Nashville, TE, 30" reflector) "Color flashing pulsations
intermittently detected by Trident MB device in Huntsville but not seen
in Md, or vis. by Hardie when alerted. Pulsations in Cassini different
from atmosphere" NASA catalog weight=2 (low). NASA catalog ID #906.
On 1980 Oct 30 at UT03:19-03:41 P. Madej (Huddersfield, UK, 158mm f/4
reflector, seeing I-II, and transparency very good. Wratten 15 (yellow)
and Wratten 35 (purple) used. No spurious colour seen). At 03:19UT, the
observer noted that Mons Spitzbergen looked sharper at x52. At x72
bright flashes of a bright lunar gray to a light orange colour seen.
BAA Lunar Section TLP team alerted. At 03:32UT a yellow filter used and
the flashes were better seen, one flash approximately 20-30 sec apart.
At 03:31UT Madej used a purple filter and could not see Mons
Spitzbergen but did see the flashes (45-60 sec apart). cameron 2006
catalog TLP ID=118 and weight=3. ALPO/BAA weight=3.
Plato 1980 Oct 30 UT 05:00-0704 Observed by F.C. Butler (SW
London, UK, seeing III, but worsening (but not as bad as IV)
towards the end of the observing period, transparency 100%
clear, 22cm Newtonian reflector, x144, x185). The floor seemed
quite devoid of detail, apart from a vague mottling seen during
the briefest moments of best seeing conditions. At the start of
the observing period he could just glimpse the central craterlet
at x185, but could not be sure. ALPO/BAA weight=1.
Alphonsus 1964 Oct 27 UTC 05:18-06:10 Observed by Hall, Johnson,
Weresulk (Pt. Tobacco, MD, USA, 16" reflector x400, S=5-7). "Red spot.
Pink glow detected with Trident MB & seen visually too." NASA catalog
weight=5. NASA catalog ID #863.
On 1994 Apr 03 at 11:23UT D. Darling (Sun Praire, WI, USA) noticed that
Copernicus crater had a red spot on the west wall (found using Moon
Blink filters Wratten 29 and Wratten 38). The ALPO/BAA weight=3.
Alphonsus 1958 Dec 03 UTC 11:00? Observed by Alter, Mt Wilson, CA, USA,
60" reflector "Photog. spect. showed floor of crater redder than
neighboring areas outside its walls. (Palm had a rep't for this date --
same area?). NASA catalog weight=4 (high). NASA catalog ID #710.
On 1994 Jan 04 at UT21:00 J. Nibbering (Rosendaal, Netherlands)
obtained a photograph that shows a large crescent of light centred on
Tycho crater, but includes also: Lilius, but not to Clavius. Cameron
suspects strongly that it was caused by camera lens flare. The Cameron
2006 catalog ID=471 and the weight=5. The ALPO/BAA weight=1.
On 1981 Oct 21 at UT 11:35-11:48 B. Hobdell (St Petersberg, FL, USA,
10" reflector) found that the south peak of Plato on floor glowed white
at 11:35UT, then a milky shade spread all aorind Plato's floor
(previously completely shadow filled). The needle like shadows started
to be indistiguishable through the sunlight (dawn on Earth). The cloud
like feature was washed out by daylight at 11:48UT and conformed to the
"white area except a tail that reached the cetre of Plato" Spurious
colour was not seen. The Cameron 2006 catalog ID=157 and weight=3.
On 2009 Jun 16 at UT 03:20-03:40 P. Morgan (UK, 30.5cm reflector, x400,
seeing=6/10 and transparency=5/5) observed a large diffuse ashen-like
effect over the shadow filled floor of Plato. The effect was lighter
towards the south. Observer checked the effect with both left and right
eyes and it remained the same. Unusually no shadow spires from rim
moutain peaks were seen. A check for colour in the region effected
revealed none. As time progressed, terrestrial twilight encroached. A
sketch was made. The ALPO/BAA weight=1.
On 1981 Oct 21 at UT13:40-13:45 D. Louderback (South Bend, WA, USA,
10" reflector) observed a cloud on the north east quadrant of
Aristarchus crater, and also covered the bright spot on the east wall
(Cameron says that the east wall bright spot is Bartlett's "EWBS".
Louderback mentions that this TLP gave Aristarchus a diamond ring
effect. The Cameron 2006 catalog ID=157 and weight=3. The ALPO/BAA
weight=2.
Aristarchus appeared dimmer than normal.
This report has an ALPO/BAA weight of 1.
1965 Aug 21 UTC 06:55-08:05 Observed by Gilheany, Johnson, Segerstrom
(Port Tobacoo, MD, USA) described in the NASA catalog as: "Color patch
detected by Trident; MB device. Color was pink. Astronauts on Gemini 5
saw terrestrial auroras from space on this date". 16" reflector used.
NASA catalog weight=5 (very high). NASA catalog ID No.#890.
Aristarchus 1961 Dec 3 UTC 03:05-03:40 Observed by Kozyrev (Crimea,
Soviet Union) described in NASA catalog as: "Emission lines in spectrum
of c.p. red & blue, H2 identified, several km2 area. Projected into
shadow cast by W. wall. Source rose to a height above the crater. 50"
reflector used NASA catalog weight=5 (very high). NASA catalog TLP ID
No. #756.
On 1977 Dec 07 at 04:24UT (assuming that this is not local time) V.M.
Chernov (Soviet Union) observed that the north cusp was more than 180
deg and a bright dot seen. Ashen light visible. Moon 3.5 days before
New Moon. On 6th Dec at 04:20UT the cusp was seen to be normal. The
ALPO/BAA weight=1.
On 1977 Dec 07 at 04:24UT (assuming that this is not local time) V.M.
Chernov (Soviet Union) observed that the south cusp was more than 180
deg. Ashen light visible. Moon 3.5 days before New Moon. On 6th Dec at
04:20UT the cusp was seen to be normal. The ALPO/BAA weight=1.
East of Picard (56E, 15N) 1877 May 15 UT 20:30 Observed by an
unknown observer (in England?) "Bright spot. (white patch)
there unlikely to be bright at sunrise normally)." NASA
catalog weight=3. NASA catalog ID #189. ALPO/BAA weight=2.
On 1970 Jul 06 at UT 22:45-23:45 Celis (Paso Hondo, Chile, 3"
refractor, x60, x100, x135, seeing=very good) saw Aristarchus as an
outstanding bright patch (10 deg bright) electric blue colour, every 10
sec groups of 3 or 4 separate sparkles for 10sec then a period of calm
for 30sec-1min. At 130x was almost constant form. Sometimes the form
would be radial like an open band with extended fingers. This was
observed in the dark part of the Moon and Cameron suspects atmopsheric
effects. The Cameron 1978 catalog ID=1264 and weight=2. The
ALPO/BAA weight=2.
On 1978 Jan 12 at 08:21UT (assuming this is not local time) V.A.
Golubev (Ussurian Sam Station, Vladivostock, Russia, x100) saw on the
western edge of the Moon an occultation of the magnitude 6? star
ZC2394. Just prior to the occultation, between the star and the dark
limb could be seen a bridge of light. The ALPO/BAA weight=1.
On 1980 Nov 10 at UT18:05 J-H Robinson (Teighmouth, Devon, UK, Seeing
III, Transparency poor, Filters Wratten 25 (red) and 44A(blue)) found
the area to be bright in red and dull in blue - but suspected that this
might have been a permanent colour blink e.g. natural colour. This does
not have an entry in the 2006 Cameron catalog. ALPO/BAA weight=1.
On 1980 Nov 10 UT 17:55-18:15 J-H Robinson (Teighmouth, Devon, UK)
observed the floor patches in Plato to be easy in red, but not so well
seen in blue. This is a BAA Lunar Section report. ALPO/BAA weight=1.
Note the month or day must be wrong!
the previous night". Its diameter is less than 3"
(5-6 km) as judged by comparing with the angular diameter
of Jupiter and also Jupiter's third satellite (the
diameter of the active part of the volcano was at least
twice the angular diameter of Jupiter's Moon). The shape
was an irregular round figure with very sharply defined edges.
It resembled a small piece of burning charcoal, when it is covered
by a thin coat of white ash. The other two volcanos were
much further towards the centre of the Moon and
resembled large faint nebulae that are gradually
much brighter in the middle; but with no well defined luminous
spot within them. These three spots are plainly to be
distinguished from the rest of the marks upon the Moon;
for the reflection of the Sun's rays from Earth is, in its present
situation, sufficiently bright with a ten-foot reflector, to
show the Moon's spots, even the darkest of them. Such
similar phenomena were not perceived in the previous month,
despite using the same telescope. The volcano was not as bright
as his 4th May 1783 sighting (resembling a 4th magnitude star as
seen with the naked eye), though the latter was smaller in diameter.
Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of
4. The ALPO/BAA catalog weight is 3.
the previous night". Its diameter is less than 3"
(5-6 km) as judged by comparing with the angular diameter
of Jupiter and also Jupiter's third satellite (the
diameter of the active part of the volcano was at least
twice the angular diameter of Jupiter's Moon). The shape
was an irregular round figure with very sharply defined edges.
It resembled a small piece of burning charcoal, when it is covered
by a thin coat of white ash. The other two volcanos were
much further towards the centre of the Moon and
resembled large faint nebulae that are gradually
much brighter in the middle; but with no well defined luminous
spot within them. These three spots are plainly to be
distinguished from the rest of the marks upon the Moon;
for the reflection of the Sun's rays from Earth is, in its present
situation, sufficiently bright with a ten-foot reflector, to
show the Moon's spots, even the darkest of them. Such
similar phenomena were not perceived in the previous month,
despite using the same telescope. The volcano was not as bright
as his 4th May 1783 sighting (resembling a 4th magnitude star as
seen with the naked eye), though the latter was smaller in diameter.
Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of
4. The ALPO/BAA catalog weight is 2.
There were two other volcanos were much further towards the centre of
the Moon and resembled large faint nebulae that are gradually
much brighter in the middle; but with no well defined luminous
spot within them. These three spots are plainly to be
distinguished from the rest of the marks upon the Moon;
for the reflection of the Sun's rays from Earth is, in its present
situation, sufficiently bright with a ten-foot reflector, to
show the Moon's spots, even the darkest of them. Such
similar phenomena were not perceived in the previous month,
despite using the same telescope. The volcano was not as bright
as his 4th May 1783 sighting (resembling a 4th magnitude star as
seen with the naked eye), though the latter was smaller in diameter.
Cameron's 1978 ALPO catalog has a TLP ID No. of 33 and a weight of
4. The ALPO/BAA catalog weight is 2.
Bright spot (in dark part of Moon - confirmation of Arkhipov?). Cameron
1978 catalog weight=5 and Cameron 1978 catalog serial No. 418,
In 1948 Aug 09 at UT 02:40 Woodward (Toronto, Canada, sky very
clear) observed, using a telescope, a bright, bluish-white to
greyish-yellow, 3 sec duration flash in Earthshine. The flash
was between magnitude 0 to 1 if one were looking for a similar
magnitude star in the sky without a telescope. There was
possibly a very slight motion of the flash in a southerly
direction. Also there were two terminal bursts. Cameron suggsts
that this might have been a meteor? Ref: Moore, P.A. Guide to
the Moon (1953), p117. The Cameron 1978 catalog ID=508 and
weight=0. The ALPO/BAA weight=1.
On 1970 Jul 07 at UT 23:00-23:30 Celis (Paso Hondo, Chile, 3"
refractor, x60, x100, x135, seeing=good) observed the following in
Aristarchus: "Similar conditions as last night (#1264) but diminished
in brightness to 40% (to 6deg bright. Real phenom. in the dimming?)".
The Cameron 1978 catalog ID=1265 and weight=3. The ALPO/BAA weight=3.
On 1980 Nov 11 at UT17:35-18:32 G. Blair (Weir, Scotland, UK) at
17:35UT immediately noted that the Earthsine was extremeley bright. All
large detail easily seen on unilluminated disk. 17:38UT a definite pale
reddish brown tinge enveloped the Aristarchus area. 17:39 seemed to be
getting larger and more intense west (IAU) side. Attempted to contact
other observers. 17:40UT Aristarchus still had a bright central peak.
17:50UT fading a little from the west (IAU). 18:00UT slight revival in
brightness. 18:15UT effect still visible when Aristarchus set behind a
high western horizon. The two sketches supplied show the illuminated
region around the crater with extension to the west (IAU). P. Foley
(Kent) found thatAristarchus was bright enough in Earthshine to be seen
with the naked eye. Telescope in operation at 18:00UT and the entire
Aristarchus region was bathed in violet/rose colour with what appeared
to be a strong ray extending to the west (IAU). Detail could be clearly
seen inside Aristarchus crater such as the central zone, west and north
wall and rim in relief from point southeat to northwest. CED measure
0.8 (white), 0.9 (blue), 0.2 (red). No other reading in Earthshine gave
a measure in red. Observation ceased by 18:32UT as the Moon was very
low. ALPO/BAA weight=3.
Macrobius 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore,
Danmark, 2.5" refractor x58 & x100, seeing=good) "Macrob. was a white
ring without outline or shadow. (shad. should have been seen--sun only
up 5deg alt. Something was raising albedo from 0 to surround." NASA
catalog weight=3 (average). NASA catalog ID #1328.
Proclus 1972 Apr 17 UT 20:10-20:45 Observed by Persson (Hvidore,
Danmark, 2.5" refractor x58 & x100, seeing=good) "Proclus not as clear
as usual" NASA catalog weight=3 (average). NASA catalog ID #1328.
On 1972 Apr 17 at UT 20:10-20:45 Hvidore (Denmark, 2.5" refractor, x58,
x100, seeing=good) noted a brightening of the dark limb between
Hercynian mountains and Cleostratus crater. Thought that it was due to
atmospheric disturbance. Cameron says similar to other reports e.g. No.
1156. The Cameron 1978 catalog ID=1330 and weight=1. The ALPO/BAA
weight=1.
In 1824 May 02 at UT 21:00-21:15 Gobel (Germany, seeing = excellent)
saw near Aristarchus (47W, 23N) a soft (matte) light like a star seen
through mist. Brightness increased suddenly to magnitude 9-10. After
several seconds it became weak, finally disappearing. repeated this 3
to 4 times in 15 minutes. The Moon was a very narrow sickle shape and a
major feature could be seen in Earthsine. The date given was 1821 but
Cameron says it is 1824. The Cameron 1978 catalog ID=88 and weight=4.
The ALPO/BAA weight=3.