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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
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.
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.
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.
Plato 1967 May 20 UT 01:13 K.Simmons (Jacksonville, FL, USA, 10"
reflector) observed a large bright (intensity 6.5) oval area on
near the central floor. According to Ricker and Kelsey (ALPO
selected area coordinators) this is unusual. ALPO/BAA weight=1.
Om 1987 Sep 04 at UT 03:00 J. Caruso (Middletown, CT, USA, 3"
refractor, x155, S=6/10 and T=8/10) found that Bianchini G was not
visible, however Heraclides E, Helicon G, and indeed many other smaller
craters could be seen. There were two small mountains in the general
area of Bianchini G. and a mare ridge - all these were clearly seen.
Caruso states that Bianchini G should normally be much more clearly
seen than the other features mentioned and is the same size as
Heraclides E. The Cameron 2006 catalog ID=305 and the weight=3. The
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 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.
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.
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
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.
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.
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.
nr Fra Mauro 1970 Aug 14 UT 05:00? Observed by Bell (Californina).
"Bright blue-white flare (meteor?)(call for obs. at Fra Mauro at
perigee because of moonquakes there -- therefore biased to tidal
hypothesis. That was the original location given for the A1 moonquake
site, but it is located elsewhere now. Ancill. data given for 1970)."
NASA catalog weight=1. NASA catalog ID #1273. 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.
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.
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.
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.
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.
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.
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.
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.
Near Furnerius 1920 Nov 23 UTC 20:00? Observed by an unknown observer
(England?) "Shaft of light projecting from Moon, or spot so bright it
appeared to (strong ray?)" NASA catalog weight=1 (very low). NASA
catalog ID #378
Aristarchus 1982 Nov 28 UTC 23:35-23:55 Observed by Foley (Kent, UK,
Antionadi III, Transparency Moderate) - Colouration Seen - Ref: BAA
Lunar Section Circular. 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.
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.
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.
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.
On 1988 Apr 01 atUT01:15-03:20 H.Hill (Lancaster, UK, 10" reflector,
x286) observed that east of Lichtenberg were ëxtensive rosy areas"
around the northern edge of the lava sheet. Hill believes that it may
have been the same effect as seen by Madler (Germany), Barcroft (USA)
and Baum's (UK) 1951 observation. The colour was "ünmistakable" and
nothing to do with the atmospheric spurious colour. Other features were
checked. the cameron 2006 catalog ID=322 and the weight=3. THe ALPO/BAA
weight=2.
On 1992 Jan 18 at UT 22:34-23:48 A.C. Cook (Frimley, UK, 8" reflector,
seeing=III) was able to see 4 craterlets and two rays on the floor of
Plato. This was suprising because Moore, using a larger telescope and
magnification, was unable to see any detail here on 1991 Dec 12th at
02:10 - according to Cameron. The Cameron 2006 catalog ID=438 and the
weight=2. The ALPO/BAA weight=1.
Aristarchus 1982 Nov 29 UT 21:47 Observed by P. Madej
(Huddersfield, UK) flashes seen to NW. ALPO/BAA weight=1.
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.
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.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 3 minutes
Aristarchus brightened. Cameron 2006 catalog ID=180 and weight=0.
ALPO/BAA weight=1.
On 1982 Aug 04 at UT19:25 Arkhipov (Ukraine). found that for 5 minutes
Copernicus flashes. Cameron 2006 catalog ID=180 and weight=0. 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
On 1988 Apr 03 at UT02:25-02:30 Culver (Harker Heights, X, USA, Meade
2045 reflector, x40, seeing=turbulent) detected flashes coming from
just north of the centre of Mare Tranquilitatis. Some of these flashes
were of a duration of seconds whilst others were several minutes.
Altogether ~20 flashes were seen, and not in the same place. "5 small
star-like points could be located - and there were lots of craterlets".
The spots were "lined up E-W at N of 10 deg latitude." Colour was not
visible on these nor variations. Apparently the observer had seen this
type of TLP before but had not reported them. The Cameron 2006 catalog
ID=323 and weight=2. the ALPO/BAA weight=2.
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.
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.
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.
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 1992 Jan 20/21 at UT 23:49-00:15 M.C. Cook (Frimley, UK, 3" Questar
telescope, x130, seeing=III) managed to see the central craterlet in
Plato and an unnamed one north west of Mons Pico. Cameron comments -
"were this & No. 429 LTP or just good seeing?)." Note it is possible
that she mean LTP 439 in which case it would refer to the previous
nights TLP. The Cameron 2006 catalog ID=439 and the weight=2. The
ALPO/BAA weight=1.
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.
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.
Aristarchus & A 1965 Nov 10 UTC 01:25-01:57 Observed by Bartlett
(Baltimore, MD, USA, 4" reflector, S=6, T=6) "Viol. tinge & radiance
around nimbus; used red filter. Aris. A became larger." NASA catalog
weight=4 (high). NASA catalog ID #913.
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.
Lichtenberg area 1940 Oct 18 UT 07:11 Observed by Barcroft
(Madera, CA, USA, 6" reflector) "Pronouced reddish-brown or
orange color, less marked on next nite, & slight on 22nd, see
#'s 477, 478." NASA catalog weight=3. ALPO/BAA weight=2. NASA
catalog ID #476.
Aristarchus 1970 Apr 23 UTC 07:00
Observed by Thomas
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.
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.
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.
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.
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 1970 Apr 24 UTC 07:00
Observed by Thomas
Posidonius 1849 Feb 11 UT 02:00? Observed by Schmidt (Athens, Greece,
7" refractor) "Bright little crater in it was shadowless. Schroter saw
repeated changes in it & others & once saw this crater's shadow
replaced by a gray veil. Gruithuisen saw the same thing as Schroter in
1821." NASA catalog weight=4 (high). NASA catalog ID #128. ALPO/BAA
weight=3.
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.
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.
Aristarchus-Herodotus 1967 May 29 UT 06:40-07:25 Observed by Anderson
(Manchester, N.Hampshire, 10" reflector, x212, S=G, T=E) "After timing
sunset on Theophilus & Cyrillus turned to Aris.-Herod. At 0640 saw red-
brown color centered at ?=.685, eta=+.390. Glow strongest at largest
area at 0640. Decreased in area but not in intensity to 1/2 its size at
0648. At 0650 color gone. Seen again at 0658 but not so pronounced.
Faded out at 0700, obs. terminated at 0725. (Haas thinks it might have
been atm. dispersion at such low alt. of 12-17 deg)." NASA catalog
weight=1. NASA catalog ID #1038. ALPO/BAA weight=1.
On 1981 Dec 16 at UT 17:45 B.W. Chapman, Kingston-Upon-Thames,
UK, 11.5cm refractor, seeing II, trasnparency Fair) found the
east outer ridge brighter in red - inclined to blue. The
ALPO/BAA weight=1.
On 1981 Dec 16 at UT 17:45 B.W. Chapman, Kingston-Upon-Thames,
UK, 11.5cm refractor, seeing II, trasnparency Fair) found the
west inner ridge lighter in red, and so to the east and south-
west floor. The ALPO/BAA weight=1.
Alphonsus 1959 Oct 23 UT 02:10-02:35 Observed by Kozyrev
(Crimea, Soviet Union, 50" reflector) "Red glows, emiss.
spect. got C2, C3 (Moore obs. 0100-0300 & saw nothing unusual
in an 8.5" reflector)" NASA catalog ID=723. NASA catalog
weight=5. ALPO/BAA weight=4.
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.
Near Calippus 1973 Jan 25 UT 19:20-19:30 Observed by Frank
(E.Pepperell, Massachusetts, USA, 6" reflector, x100, S=G) "Bright spot
nr. Calippus. Sketch (Calippus alpha, or unnamed peak N. of it?). Est.
albedo=8.5 & surroundings at 0.5 at 1015h. Obj. not noticeable at all
during 1st 1/2 cycle thru FM in Dec. & Jan. (ALPO-LTP prog.)" NASA
catalog weight=0 (very unreliable). NASA catalog ID #1360.
White spot in Walter 1973 Jan 25 UT 19:20-19:39 Observed by
Frank (E.Pepperell, Massachusetts, USA, 6" reflector, x100,
S=G) "White spot in Walter barely distinct fr. surroundings &
crater rim. It's albedo=8, surroundings=7 (ALPO-LTP prog.)"
NASA catalog weight=3. NASA catalog ID #1360. ALPO/BAA
weight=2.
Aristarchus 1976 Nov 13 UT 05:25 Observed by Bartlett (Baltimore, MD,
USA, 3" refractor, 54-200x, S=6, T=4) "Floor 8deg except S.=6deg which
is also granulated & la pale yellow. Different aspect fr. other obs. at
same col. Viol. in outer nimbus. Bright blue-viol. glare where viol.
radiance was on 11th. SWBS still large & 9 deg bright." NASA catalog
weight=4 (high). NASA catalog ID #1457.
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.
Aristarchus 1976 Nov 14 UT 06:09 Observed by Bartlett (Baltimore, MD,
USA, 3" refractor, 54-200x, S=5-4, T=5) "Walls & floor 8deg except S.=
6deg, SWBS now smaller but still 9deg. S.floor still granulated & now
yellow-brown. Strong viol. tint still on outer nimbus but now viol.
radiance (gas?) again on ENE rim as on 11th, but not as on 13th"
NASA catalog weight=4 (high). NASA catalog ID #1458.
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 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.
Aristarchus 1976 Nov 16 UT 06:15 Observed by Bartlett (Baltimore, MD,
USA, 3" refractor, 54-200x, S=4, T=5) "Crater very dull except EWBS=
9deg & large. W.glacis=5deg & inner E.wall 6deg. Floor is dull 5deg,
c.p.=10 deg. SWBS has disappeared. No viol. anywhere" NASA catalog
weight=4 (high). NASA catalog ID #1460.
On 1821 July 25 at UT 03:30 Gruithuisen (Munich, Germany) observed,
near Aristarchus, some brilliant flashing spots on the Earthlit side of
the Moon. These disappeared after a short while then re-appeared. The
Cameron 1978 catalog ID=90 and weight=4. The ALPo/BAA weight=3.
Rocca 1938 Apr 26 UTC 09:30 Observer Haas? (NM?, USA, 12"? reflector)
"Colored (dark?) area was intensity I=1.0". NASA catalog weight=4
(high. NASA catalog ID #434.
Roca 1938 Apr 27 UT 09:40 Observed by Haas (New Mexico? 12?" reflector)
"Colored area was I=1.3" NASA catalog weight=3 (average). NASA catalog
ID #435.
Alphonsus 1968 May 05 UT 20:00 Observed by Farrant (Cambridge,
England, 8" reflector, x220, Seeing: Good). "Did not see gray patch SE
(ast. ?) of c.p. Noted W. (ast. ?) dark patch was invis. while S. one
was seen easily, emerging from shadow. On 7th all seen easily, emerging
from shadow. On 7th all 3 clearly vis. with the darkest one the invis.
one on 5th." NASA catalog weight=3. NASA catalog ID #1071. ALPO/BAA
weight=1.
On 1979 Sep 29 at UT10:00-12:00 S. Turner (Maryborough, Australia)
observed a strong beacon like flash in white light that moved back and
forth in the east wall of Plato (very bright) and Mons Pico. tried
changing eyepiece and the field of view, but this wasn't the cause of
the effect. A check at 11:07UT did not show the effect, but it was back
again by 11:18UT being more pronounced at Mons Pico than the east wall
of Plato. SSW of Mons Pico was also blinking slightly. At 11:32 the
blinking effect was irregular 5-10 sec and this continued until
12:00UT. Cameron 2006 catalog ID=71 and weight=0 but she suggests
atmospheric scintillation as a cause. ALPO/BAA weight=1.
On 1979 Sep 29 at UT10:00-12:00 S. Turner (Maryborough, Australia)
observed a strong beacon like flash in white light that moved back and
forth in the east wall of Plato (very bright) and Mons Pico. tried
changing eyepiece and the field of view, but this wasn't the cause of
the effect. A check at 11:07UT did not show the effect, but it was back
again by 11:18UT being more pronounced at Mons Pico than the east wall
of Plato. SSW of Mons Pico was also blinking slightly. At 11:32 the
blinking effect was irregular 5-10 sec and this continued until
12:00UT. Cameron 2006 catalog ID=71 and weight=0 but she suggests
atmospheric scintillation as a cause. ALPO/BAA weight=1.