On 2008 Oct 19 during 05:40-06:30UT D. Holt of Chipping, UK observed an
anomalous patch of illumination just to the west of the centre of the
Posidonius J crater. It is possible that this is just some high ground
on the floor protruding through the shadow filled crater at sunset.
Therefore this has been assigned a weight of 1 for now, just in case it
is a TLP - until proven otherwise.
On 1991 Jul 31 at UT 07:50 D. Louderback (South Bend, WA, USA, 3"
refractor) observed that the south floor of Aristarchus was wellow -
"almost gold, spilled over S wall on ray toward Herodotus". Cameron
comments that Bartlett often reported a yellow floor but not a spill of
the colour over to the external ray. Cameron also comments that
Louderback's refractor would refract more in blue light than in yellow,
therefore she did not think that it was due to chromatic aberation. The
Cameron 2006 catalog ID=431 and the weight=3. The ALPO/BAA weight=2.
On 1991 Jul 31 at UT 07:50 D. Louderback (South Bend, WA, USA, 3"
refractor) found that all of Mons Piton was "unusually dark". Points D,
C (E and S resp), usually brightest points, but this time were not
bright. "Whole mt was as dark as W wall usually is at this time. In
violet filter Piton disappeared completely, but was a little brighter
in red filter and points D & G showed. Color not seen by eye. No albedo
measured. Suggests red event." Cameron rules out chromatic aberation
from Louderback's refractor. The Cameron 2006 catalog ID=431 and the
weight=3. The ALPO/BAA weight=1.
Plato 1975 Jun 28/29 UT 23:00-01:20. Foley (Wilmington, UK, 12"
reflector, seeing, III, good clarity transparency). At 23:00,
00:30, and 01:15 blue was seen on the inner wall:floor southern
boundary, and red on the corresponding northern floor:wall
boundary. However by 01:20, blue was now on the S-NW floor:wall
boundary, and red on the NE-SE floor:wall boundary. Atmospheric
spectral dispersion existed in many regions, but did not change
like the colours in Plato. Similar appearance craters such as
Grimaldi, Schickard, and Riccioli, were checked for a similar
change in colour, but no change was noticed in these. ALPO/BAA
weight=1.
Callipus 1952 Sep 09 UT 21:00-21:20 Observed by Moore (England)
"Hazy broad line of light seen fr. NW wall to SE wall over shad.
floor. Gone next nite at 0120. He gave low wt. to obs. (sunlight
between peaks?)." NASA catalog weight=1. NASA catalog ID #553.
ALPO/BAA weight=1.
Aristarchus 1976 Aug 15 UT 23:00-23:45 Observed by Garbott (2)
(Bedfordshire, England, 10" reflector x500, seeing Antoniadi I)
and by Moore (Sussex, England, 15" reflector, x360, seeing
Antoniadi IV) "Noted blue color on N. wall extending toward
Herod. Also saw orange color in S. region. Confirmed by father.
(similar to many of Bartlett's rept's.), More noted nothing
unusual at 2320h." NASA catalog weight=4. NASA catalog ID #1444.
ALPO/BAA weight=2.
Stochard of Dublin, Ireland, saw naked eye at 10:30UT on
1862 Nov 12 Aristarchus as extraordinarily bright as a bright
spot on the Moon. This was seen in daylight with the waning
crescent. Cameron 2006 extension catalog ID=6 and weight=3.
ALPO/BAA weight=2.
On 2009 Sep 09 UT23:31:43 P.Grego (St Dennis, Cornwall, UK, seeing II-
III) suspected a flash south of Cabeus, just beyond the terminator.
It was not bright, and lasted a fraction of a second. Thinks it might
have been illusory as he saw some fainter flashes (cosmic rays?)
during that nights observing session. ALPO/BAA weight=1.
On 1973 Oct 17 at Ut 11:30 Androsan (Edmonton, Canada, 6" reflector,
x230) observed a glow 1-2 sec reappearance of Saturn's rings at a place
of ring's appearance on the dark limb. The observers attributed it to
Saturn and its rings. Cameron speculates that it might be due to gas or
dust at the lunar surface. Eye was attacted to the glow which
delineated the limb at a position angle of 210 deg at emersion, at
Earthshine at Edmonton. The Cameron 1978 catalog ID= and weight=2. The
ALPO/BAA weight=1.
Plato 1975 Jun 29/30 UT 23:05-00:30. Foley (Wilmington, UK, 12"
reflector, seeing, III, good clarity transparency). At 23:05,
blue was seen on the inner wall:floor southern boundary, and red
on the corresponding northern floor:wall boundary. However by
00:30, blue was now on the W floor:wall boundary, and red on the
E floor:wall boundary. Atmospheric spectral dispersion existed
in many regions, but did not change like the colours in Plato.
Similar appearance craters such as Grimaldi, Schickard, and
Riccioli, were checked for a similar change in colour, but no
change was noticed in these. ALPO/BAA weight=1.
Aristarchus 2004 Dec 03 UT 00:00-01:00 Observed by Brook (Plymouth,
England, 60mm OG x120) "Fluctuation in the brightness in Aristarchus
still present but less pronounced than yesterday. Also saw the bright
short ray on the opposite side to the main ray in Aristarchus that
Amato saw yesterday - but this may be normal?" BAA Lunar Section
report.
Aristarchus 1974 Sep 08 UT 04:45-06:30 Observed by Cowan and Johnson
(Dublin, TX, 8" reflector, x59, x152, S=7) "Saw a bright luminous,
blue, misty cloud on th NE rim. Obscur. for 1st hr. then gave way to
pink & features became vis. Cloud was tear-drop shape. No movement to
glow. Pink cloud glowed too. Very tenuous by 0130h. (Nakamura says
there were no seismic events within several hrs. of this time). Another
person saw it without being advised as the where it was." NASA catalog
weight=5. NASA catalog ID #1393. ALPO/BAA weight=4.
On 2009 Sep 11 UT00:15-00:20 and 01:00-01:05 C.Brook (Plymouth, UK, 5"
O.G., x100, seeing tremourlous but definition improving over time)
noticed that the central peak(s) in Alphonsus were brightening
gradually. No effect was seen earlier at UT23:30-23:35. One presumes
that the effect also occured between these two observing times?
The observer suspects that this was not a TLP, but is uncertain.
ALPO/BAA weight=1.
M.C. Cook (Frimley, UK, seeing=III-II) noticed that the crater had a
blue/green colour and that this varied, filling a large circular patch,
brightly illuminating to the ESE-SSE (IAU?) spilling over the wall and
the rim. Shadows inside the crater were large and elongated. The filter
response was greater in the blue than through a yellow or red
Microfiche. Spurious colour was noticed elsewhere but not in
Aristarchus. Cameron 2006 extension catalog ID=313 and weight=3.
ALPO/BAA weight=3
Tycho 2006 Jan 22 UT 06:34-06:36 Observed by Fabio Carvalho
(Assis, Sao Paulo Brazil, 25cm f/6 Newtonian) "Green colouration
seen on a rim of Tycho, effect remained visible for only 2
minutes. Attempts to image it shortly afterwards failed as it
had finished by then" An REA-Brasil observational report.
ALPO/BAA weight=3.
On 2009 Sep 11/12 UT23:28-00:00 M.C. Cook (Mundesley, UK, 90mm Questar,
x80 and x190, seeing II and transparency moderate-poor) observed
pink on the north west rim of Tycho and green-blue on the inner
SW rim. No sign of colour elsewhere on the Moon except for the
S-E rim of Plato that was red. The Moon was about 20 deg in altitude
at the time. The effect had gone by the end of the observing period.
A simulation of spurious colour in different directions
was generated by the BAA Lunar Section and found to possibly account
for these colours, although there should have been some strong colours
seen elsewhere in Tycho and none were. The BAA/ALPO weight=2.
Eratosthenes 1976 Jun 20 UT 07:57 Observed by Bartlett
(Baltimore, MD, USA, 4.5" refractor, 40-450x, S=6.5, T=4-3)
"Floor covered with shadow & c.p. seen as 5deg bright spot.
Another minute spot 5deg bright on SE floor in shadow. (only low
hills on floor in SE. spot on terrace?" NASA catalog weight=4
(high). NASA catalog ID 1436.
Eratosthenes 1976 Aug 18 UT 06:12 Observed by Bartlett (Baltimore, MD,
USA, 4.5" refractor, 45, 225x, S=6, T=3-2) "Again, c.p. is vis. within
shadow but much brighter than on Aug, 4 (4 deg) & similar to June at
same col. The 2nd bright spot seen in June was not seen tonite.
(roughness on walls seen in LO IV & V pics show why these pseudo-
shadows appear)." NASA catalog weight=4 (high). NASA catalog ID #1445.
UT 08:30 or UT 20:30? SW inner wall of Aristarchus was intesnity
I=0.5, but was I=2.5 on July 2 at Col. 195. Observing conditions were
identical. Band is darkening near col. 180. (Observation made in
daylight?). Cameron 1978 NASA catalog ID=425 and weight=4
(very experienced observer). ALPO/BAA weight=3.
During sunset at this feature, with the interior in shadow
the observer saw that the central peak was nebulous and fuzzy
and not what one would expect. Cameron saw it on 9 Oct 1993
at sunset and noted that it was not nebulous, just a grey patch
although briefly she suspected perhaps two points/peaks?.
The Cameron 2006 extended catalog ID is 467 and the weight is
3. The ALPO/BAA weight is also 1. The observer used an 8"
reflector and conditions were S=4 and T=4.
On 1979 Jul 18 at 08:30-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Reichenbach glowed for a short time and then
faded. Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 08:30-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Stevinus glowed for a short time and then
faded. Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA weight=1.
On 1979 Jul 18 at 08:56-09:05 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found Cleomedes (and other features) to glow, some with
flashes and pulsations. At 09:06 UT Cleomedes was glowing, but by
09:06UT it could no longer be seen. Cameron 2006 catalog ID=61 and
weight=0. ALPO. BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Condorcet (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Delambra (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Macrobius (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Manilius (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Mare Crisium (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Maskelyne A (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Menelaus (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Proclus (and other features - 12 in total)
were blue in colour - some had flashes that expanded from the centres
(at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA
weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Promontorium Agarum (and other features - 12
in total) were blue in colour - some had flashes that expanded from the
centres (at different rates). Cameron 2006 catalog ID=61 and weight=0.
ALPO/BAA weight=1.
On 1979 Jul 18 at 09:40-10:00 D.Darling (Sun Praire, WI, USA, 12.5"
reflector, x80) found that Tisserand (and other features - 12 in total)
were blue in colour - some had flashes that expanded from the centres
(at different rates). Cameron 2006 catalog ID=61 and weight=0. ALPO/BAA
weight=1.
Aristarchus 1969 Jan 12 UT 12:00 Observed by Taboada (Mexico,
Seeing Excellent) "Region showed same characteristics as
previous days, perhaps a little darker color brown but more
remarkable. Used red, blue & green filters & difference in color
noted in & out of region. (permanent ground color seen?)." NASA
catalog weight=3. NASA catalog ID #1116. ALPO/BAA weight=2.
Heywood of Westville, Ohio, USA, using a 2" refractor under fair seeing
conditions, saw an unusually bright glow covering the dark part, nearly
uniform. Thought it was electric because it was too bright for
earthshine. It apparently obscured features. Cameron's 1978 TLP catalog
ID=243 and weight=1. ALPO/BAA weight=2.
Mare Crisium 1951 Oct 26 UT 08:48:15 L.T. Johnson (USA)
suspected a mag 6 flash in Earthshine in Mare Crisium. ALPO/BAA
weight=2.
Two observing times are given for two observers, 10:30-11:07 UT and
10:45-10:52UT. Castle (Rock Island, IL, USA, 8" 51x and 102x reflector)
found that the Proclus region was brighter than the rest of the
Earthlit region. They used averted vision at x102 and noticed that
Proclus was the brightest object in the center of a glowing area. The
size of the glowing area was three times that of the diameter of
Proclus in the E-W direction and 4-5 x the diameter in the N-S
direction. East of glow was not so well defined. Darling (Sun Praire,
WI, USA, 3" reftactor x56) noticed a brightening in the Earthshine in
this region and alerted Brit. but they were clouded out.Cameron 2006
catalog extension ID=410 and weight=1. ALPO/BAA weight=1.
Rocca 1938 Jul 28 UT 08:00 Observed by Haas (NM?, USA, 12?" reflector)
"Colored (dark ?) area was I=4.3, comp. with I=1.0 on 4/26/38 (see #
434) & I=1.3 on 4/27/38 (see #435)" NASA catalog weight=4 (high). NASA
catalog ID #441.
On 1990 Sep 30 at D. Darling (Sun Praire, WI, USA, 12.5"
reflector, x150) observed a red spot on the west wall (bright
in red filter and faint in the blue filter. No filter
reactions were found elsewhere. Gassendi had much detail
visible. A sketch was made. BAA observers in the UK were
alerted but they could not observe due to cloud. Cameron
2006 extension catalog ID=411 and weight=5. ALPO/BAA weight=3.
Gassendi 1967 Jan 21 UT 19:36-20:24 Observed initially by
Moore & Moseley (Armagh, N.Ireland, 10" refractor, x360, S=G),
Ringsdore (England, 10" reflector), Sartory (Farnham, England,
15" reflector?), Duckworth (England), Kilburn (Ashton,
England, 6" reflector), Farrant (England, 8" reflector) "Eng.
moon blink at 1936 (no events from 1750-1815h) outside SE
wall, brighter at 1939h, seen vis. at 1940h, faint at 1946h.
Moved NW at 1950h. At 2000h, Moseley saw it farther W., lost
it at 2008h. Seen again at 2026h further toward group of
hills. Moore saw it faint at 2002h, lost it at 2005h, vis. &
blink at 2007h. Checks again at 2010-50h, 2130-50, 2200-20,
2250-2300, 2325-0000h.Duckworth suspected blink in S.Iridium
nr. Bianchini later, but clouds intervened, after clearing
couldn't see it. Neg. obs. in 11 other features, inc.
Alphonsus & Plato. Confirmed Gass blink 2018-2024h" NASA
catalog weight=5. NASA catalog ID #1010. ALPO/BAA weight=4.
Alphonsus 1969 Nov 20 05:27 (UT)? Observed by Argus/Astronet (San
Diego, Sacramento, CA, USA) "Brightening in crater. (San Diego &
Sacramento obs. confirmed, but astronauts did not see anything. Apollo
12 watch)." NASA catalog weight=3 (average). NASA catalog ID #1222.
Gassendi 1971 Oct 29 UT 22:15-22:50 observed by J.Coates and
A.R. Neville (Burnley, UK, 6" reflectir, x192, slight fog,
seeing jumpy but good at times). An in ititial Moonblink
search proved negative. However white light observations by
Coates revealed a golden brown colour between the black
interior shadow and the base of the (bright W (IAU?) wall).
Neville confirmed its appearance as a coppery hue and saw the
colour for 5 minutes before it vanished at 22:55UT. ALPO/BAA
weight=2
Plato 1966 Dec 23 UT 06:15-07:10 Observed by Kelsey (Riverside, CA,
USA, 6" reflector, S=P, T=G) and Coralitos Observatory (Organ Pass, NM,
USA, 24" reflector +Moonblink) "3 brilliant spots on floor, all showed
blinks, (permanent colored Ground features ?). Not confirmed by
Corralitos MB." NASA catalog weight=2 (low). NASA catalog ID #1005.
Gassendi 1977 May 28/29 UT 20:45-21:15 Observed by D. Sims
(Dawlish, Devon, UK) saw a hazy area on the south east floor
that was normal in red and white light but darker in blue.
This was partly confirmed by J-H Robinson (Devon, England, 10"
reflector) 21:24-23:12 who saw the south east floor of
Gassendi to have a loss of detail - but no colour seen,
although at 21:57-21:58 it was slightly brighter in red than
in blue briefly. P. Doherty (22:45-23:15) did not see anything
ususual. D. Jewitt (22:22-22:55) did not reveal anything
ususual, apart from spurious colour. The Cameron 1978 catalog
ID=3 and ID=1463. The ALPO/BAA weight=3.
Aristarchus, Schroter's Valley, Herodotus 1881 Aug 06 UT 00:00?
Observed by Klein (Cologne, Germany, 6" refractor, 5" reflector)
"Whole region between these features appeared in strong violet
light as if covered by a fog spreading further on 7th. Examined
others around & none showed effect. Intensity not altered if
Aris. placed out of view." NASA catalog weight=4 (high). NASA
catalog ID #224. ALPO/BAA weight=3.
On 1990 Oct 1st at 00:44-01:24UT D Darling (Sun Praire, WI, USA)
observed that Gassendi still had a blink effect when viewed through
blue (Wratten 38A) and red (Wratten 25A) filters. No effect was seen on
Aristarchus. Gassendi was brighter in the red filter and this was
confirmed by Weier. Sketches were made and brightness measurements
taken. Both observers used a 12.5" reflector x159. At 01:00UT the NW
wall was 7.5, the SW wall 8.0, the S. wall 7.5, the floor 6.0, the
outer E. wall 8.0, the N. floor 5.5. Gassendi A W. wall was 9.5,l
Aristarchus W. floor was 8.0, NW wall 8.0, shadowed floor 0.0, E. outer
wall 7.0, NBP 5.5, area between Aristarchus and Herodotus 6.0, and the
comet like tail: 8.2 on the E. and 8.5 on the W. The Cameron 2006
catalog extension TLP ID=412 and weight=5. The ALPO/BAA weight=4.
Schroter's Valley 1955 Aug 29 UT 19:45 Observed by Firsoff (Somerset,
England, 6.5" reflector x200, S=P-F) "Valley almost completely
invisible in blue" NASA catalog weight=4 (high). NASA catalog ID #605.
Bullialdus 1974 Sep 27 UT 22:45-23:40 Observed by Findlay, Ford
(Dundee, Scotland, 10" refractor, 150x, 180x, filters) "Saw yellowish-
orange color in crater. After clouds passed at 2300h color still there
& gave a slight blink which no other craters did. Not seen in red
filter, dark in blue. Ford saw it along ridge fr. c.p. to SW wall.
Alert did not bring confirm. as clouds intervened for all others." NASA
catalog weight=4. NASA catalog ID #1394. ALPO/BAA weight=3.
Torricelli B 2005 Jan 22 UT 03:15-03:23 Observed by Raul Salvo
(Montevideo, Uraguay UT 03:15-03:23) showed that Torricelli B
was dark, and there was some brightness variability although the
background setting on these images was low and seeing could
account for the brightness variation? An ALPO report.
Aristarchus 1976 Sep 05/06 UT 18:45-01:35 Observed by Prout
(England?, 12" reflector, S=III-II), Foley (England, 12"
reflector), Moore and Spry (Sussex, England, 12" reflector)
"Viol. hue on crater on W. wall, especially NW corner seen by
Prout & 2 Foleys. Moore & Spry did not see color. All obs. noted
that the crater was dull Hobdell, of St Petersburg, FL, USA, using a 2"? refractor?
and Seeing=I-II, saw a bright region on the north west wall
that seemed to change in brightness. In truth, there were
other features elsewhere on the Moon that also fluctuated,
but not as much as Aristarchus was. No colour was noticed.
Cameron suspects fluctuations in our own atmosphere.
Cameron 2006 extension catalog ID 131 and weight=1. ALPO/BAA
weight=1.
Proclus 1970 Oct 12 UT 00:54 Observed by Bartlett (Baltimore, MD, USA,
4" reflector, 51x-181x) "Floor darkened to intensity 1.5 deg (albedo) &
c.p. became invis. Next day c.p. reappared & was 5 deg bright & 6deg
bright on 15th" NASA catalog weight=4 (high). NASA catalog ID #1277.
Schickard 1972 Sep 19 UT 19:45-20:25, 20:00-23:30 Observed by Watkins
(Herts., Eng. 4.5" reflector, x225, S=G) Amery (Reading, Eng.m 12"
reflector?), Fitton (Lancashire, Emg., 8.5" reflector) and Moore
(Selsey, Eng., 12.5" reflector?, 4.5" refractor 45-225x, S=P)
"Luminous, nebulous spot attracted Watkin's att'n. Got brighter.
Checked 'scope--not instru. Obj. had greenish-gray color, size @ 15km.
Amery & Fitton with blink devices noted nothing unusual at later times
(2000-2330h). Aris., Plato, Gass. were neg. at 1930-2025h (date not
given, guessed at fr. available info.). Turbulence, lasting
secs. at a time." NASA catalog weight=2. NASA catalog ID #
1344. ALPO/BAA weight=2.
Herodotus 1957 Sep 05 UT 02:55-03:24 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector x180, S=1-5, T=5) Pseudo
peak visible within floor shadow at 03:10h" NASA catalog
weight=4. NASA catalog ID #671. ALPO/BAA weight=3.
On 2002 Feb 24 UT 05:15-05:35 W. Haas (Las Cruces, NM, USA) observed an
obscuration in Herodotus - the shadown was, almost, but not
completely black. ALPO/BAA weight=2.
On 2002 Feb 24 UT 06:05-06:20 W. Haas (Las Cruces, NM, USA) observed
that the shadow was, almost, but not completely black. This might have
been related to the observing conditions.
ALPO/BAA weight=2.
On 1933 Oct 01 at UT 03:00 Rawstron (USA, 4" refractor, x330) observed
the following in Mons Pico B: "Haze -- much narrower & elongated than
on Sep. 1". The Cameron 1978 catalog ID=407 and weight=3. The ALPO/BAA
weight=2.
On 1955 Oct 28 at UT00:00? Kozyrev (Crimea, Soviet Union, 50"
reflector) detected in Aristarchus Fraunhofer lines in UV spectra that
were much narrower than in the solar spectrum. This indicated
luminescent glow which overlapped contour(?) lines. Greatest after Full
Moon, but fluctuated monthly with no indication of solar activity
effect. The Cameron 1978 catalog ID=621 and the weight=5. The ALPO/BAA
weight=5.
On 1955 Oct 28 at UT 00:06 W. Taylor saw a naked eye flash on the Moon
in the north east area, on the edge of Mare Vaporum. The flash was
intense and radiated to a large area. The duration was 1/4 seconds.
Aristarchus, Schroter's Valley, Herodotus 1881 Aug 07 UT 00:00?
Observed by Klein (Cologne, Germany, 6" refractor, 5" reflector) "Whole
region between these features appeared in strong violet light as if
covered by a fog spreading further on 7th. Examined others around &
none showed effect. Intensity not altered if Aris. placed out of
view." NASA catalog weight=4 (high). NASA catalog ID #224.
Observed by Haas (Las Cruces, NM, USA) "Temporary greyness seen in
interior shadow." ALPO/BAA weight=3.
Aristarchus 1981 Mar 17 UT 22:40-23:25 Observed by Moore
(Selsey, England, 15" reflector, seeing III) "Aristarchus very
bright according to Crater Extinction Device and a coloured
blink detected" BAA Lunar Section TLP report. ALPO/BAA
weight=1.
On 2016 Jun 17 UT 05:00 A.Anunziato (AEA, Argentina Meade ETX
105, seeing 7/10, sketch made) observed a very tiny light spot
where the shadow from topographic relief to the south of
Vallis Schroteri nerges into the crater rim shadow on the
floor of Herodotus. There should be no light spot here.
ALPO/BAA weight=1.
A fleeting faint reddish patch was seen in Gassendi
at 21:15UT. This observation has an ALPO/BAA weight of 2.
On 1990 Oct 02 at 02:25-02:45UT D. Darling (Sun Praire, WI, USA using a
12.5" reflector at x159, with red and blue filters), saw a blink
effect on the west wall of Plato i.e. brighter through a blue filter
than through the red. No Colour blinks seen on Gassendi or Aristarchus.
Cameron 2006 Catalog TLP=413 and weight=4.
1954 Aug 11 observed by Firsoff (Somerset, UK, 6.5" reflector,
x200) "Brilliant in red filter, variable)" NASA catalog
weight=4. NASA catalog ID #570. ALPO/BAA weight=3.
Babbage 1974 Sep 29 UT 00:00-01:00 Observed by Lord (St Annes-
on-Sea, UK, 10" refractor, Wratten 25 and 44a filters, 125x,
S=II-III). Activity observed in SW floor between A & W. wall.
Details not obscured in either filter, but slightly more
darker than surroundings in the blue filter. NASA catalog
weight=2. NASA catalog ID #1395. ALPO/BAA weight=2.
1996 Jun 28 UT 21:04 F. Ferri and D. Zompatori (Anzio), using
a 20cm f/6 reflector, reported that (translation) "Using a
blue filter the area was invisible". This is a UAI observation
from Italy. ALPO/BAA weight=1.
Ross D 1965 Apr 14 UT 06:03-06:22 Observed by Harris (Whittier?, CA?,
USA, 19"? reflector) "Phenomenon description unavailable. Given at an
ALPO meeting" NASA catalog weight=0 (very unreliable). NASA catalog ID
#874.
Schroter's Valley 1897 Oct 08 UT 22:00 Observed by Pickering
(Cambridge, Maas., USA, 15"? refractor) "Variations in vapor col.
Tillsow, C was largest compared with D&E& most conspicuous 1.3 d after
sunrise. Drawing. (time est. fr. given colon.)" NASA catalog weight=3
(average). NASA catalog ID #291.
On 1988 Jan 02 at 05:57-06:13 UT D. Louderback (South Bend, WA, USA,
using a 8" reflector, seeing 4 out of 10) observed that points B and D
on Cape Agarum faded suddenly from 7.0 to 6.4 (B) and 6.0 (D). However
these returned to their normal levels at 06:13 UT. Cameron 2006
extension catalog ID=316 and weight=4. ALPO/BAA weight=3.
On 1977 May 30 at 21:04-02:13UT J.H.-Robinson noted a loss of
detail inside Gassendi, however he did not regard this as a
TLP. The effect was also seen by P.W. Foley. Cameron 2006
extension catalog TLP ID=16 and weight=0 ALPO/BAA weight=1.
On 1984 Feb 14 P. Moore (Selsey, UK) thought that there was something
odd about Mons Pico in that it looked very bright and gave a good
impression of a crater. Cameron 2006 catalog extension ID=241 and
weight=5. ALPO/BAA weight=2.
On 1984 Feb 14 P. Moore (Selsey, UK) observed that Plato was darker
than the nearby mare and no detail could be seen on the floor or the
eastern wall - the later was obscured. At 23:40UT some dimming was
still present on the north east wall and still no detail on the floor
of Plato. Cook noticed that the eastern floor close to the wall was
misty and also noted no detail on the floor. Amery though noted that
all parts of the floor were sharp although some darkening was visible
in the north west and a hint of obscurtion. The east wall though was
quite sharp. Mosely could see the central craterlet but from 8-6
o'clock tricky to define (Foley says that this effect has been seen at
this colongitude before). Streak ray across the floor of Plato seen
(North) - filter measurements made. Cameron 2006 catalog extension ID=
241 and weight=5. ALPO/BAA weight=2.
On 1988 Jan 02 at 06:41-07:08 UT D. Louderback (South Bend, WA, USA,
using a 8" reflector, seeing 4 out of 10) observed that at 06:56 UT
Aristarchus floor (point F) brightened rapidly from an intensity of 5.2
to 6, however at 07:08 UT the spot returned to normal. He also noticed
that the bands on the walls varied every few minutes. A mist like
appearance was seen on the floor of Aristarchus. Through a red filter
he could see through the haze, but floor detail could not be seen
through a blue filter. Cameron 2006 extension catalog ID=316 and
weight=4. ALPO/BAA weight=3.
Vallis Schroteri 1991 Aug 23 UT 02:19-02:49. Flashing spot at
end of SV fluctuated. Herzog, Darling & Weier confirmed spot
but not fluctuation. Spot brighter in red than blue, but Cobra
Head was bright in blue. No other region was abnormal.
On 1980 Apr 28, Louderback (South Bend, WA, USA using a 8" reflector
and a 2.5" refractor) observed a very bright reg region on top of the
south west rim of Aristarchus crater. This was on the same side as the
ray system between Aristarchus and Herodotus. Louderback noticed some
chromatic aberation - blue where he had seen the red patch before.
Louderback suspects chromatic aberation was the cause although did not
see red in that region ever again. "Patch was between his observation
points A and C. Point C was 5 points brighter in the red filter than in
the blue." A sketch was made. Cameron suspects that the TLP was real.
Cameron 2006 TLP catalog extension ID=92 and weight=3. ALPO/BAA
weight=2.
Manilius 1939 Jul 30 UT 06:00 Observed by Haas? (NM?, USA, 12?"
reflector) "Dark area in S. part wad I=3.7 comp. with #449. Cond. were
similar. (phase same. real difference?). (normal here?)"
Schickard 1940 May 20 UT 20:00 Observed by Moore (England, 12?"
eflector) "Fog on floor -- milky appearance, less pronounced
than on 8/2/39 (see #456)." NASA catalog ID #465. NASA catalog
weight=4. ALPO/BAA weight=2.
Mare Humboldtianum 1951 Jan 21 20:47-22:00 UT observed by Baum
(Chester, England). The appearance of some mountains on the
limb appeared to change over time, with some mistiness. ALPO/BAA
weight=2.
Madler 1940 Aug 17 UT 06:45 (Cameron gives 07:30 but Haas says
this is wrong) Observed by Haas (New Mexico?, USA, 12"
reflector?) Bright spot on S. rim had I=5.8 on this date but
8.9 on Aug. 17, when observing conditions were similar (see #
473). NASA catalog weight=4. NASA catalog ID #470.
ALPO/BAA weight=3.
Aristarchus 1989 Oct 13 UTC 21:00 Observed by Cook (Frimley, Surrey,
UK, 20cm reflector (visual and video)) "Aristarchus had what appeared
to be a outline of a ghost crater on it's eastern side - quite large
and bright". Cameron 2006 extended catalog TLP ID No=378 and weight=5.
ALPO/BAA weight=4.
Plato 1937 Jul 22 UT 06:20 Observed by Haas (Alliance, Ohio,
USA, 12" reflector?) "Floor distinctly greenish, but was gray on
June 23, 1937 at 0430 & col.84 (normal?)" NASA catalog weight=4
(high). NASA catalog ID #421. ALPO/BAA weight=3.
Plato 1916 Oct 10 UT 21:00? Observed by M, Maggeni (Florence
Obs., Italy) "Reddish shadow spread over part of crater. Looked like
vapor (like nitrous vapor) and obscured underlying craters. The Cameron
1978 catalog weight=3 and ID = 365. The ALPO/BAA weight=3.
Aristarchus. 2024 Feb 23 UT 19:22. A.Conway (Bootle, UK - 20cm
Newtonian (dobsonian), 9mm Plossl eyepiece, Samsung A33 mobile
phone camera, 36 sec AVI file at 30fps, seeing probably
average-good). Noticed a blue tinge on northern rim of the
crater. This is probably normal, but we are flagging this up
as a weight 1 TLP, in order to obtain some repeat illumination
observations and confirm that the strength of the blueness is
normal.
Archimedes 1940 Aug 18 UT 03:25 Observed by Haas (NM?, USA, 12"
reflector?) NE outer wall had I=5.0, but was I=2.5 on June 20
(see #467) (similar colong.)" NASA catalog weight=4. NASA
catalog ID #471. ALPO/BAA weight=2.
Archimedes 1940 Jun 20 UT 07:30 Observed by Haas (NM, USA, 12?"
reflector) "NE wall (outer) had I=2.5 on this nite but 5.0 on
Aug. 18 (see #471 -- both same phase so real diff. 2.5 normal?)"
NASA weight=4. NASA ID No. #467. ALPO/BAA weight=2.
Near Censorinus 1964 Apr 26 UT 20:00? Observed by Hopmann
(Czchoslovakia?) "Surface brightening somewhat similar to Kopal and
Rackham in #779" NASA catalog weight=3 (average). NASA catalog ID #810.
Proclus 1972 Nov 20 UT 20:20 Observed by Farrant (Cambridge, England,
8.5" reflector, x178) "Dark patch in crater. Disappeared by next nite.
The normal ring seemed thickened. On Dec. 7. the crater appeared
bright. Drawings. (prob. real LTP, nr. FM)" NASA catalog weight=3
(average). NASA catalog ID #1350.
Lichtenberg 1951 Jan 22 18:19.2-18:38.5 UT observed by Baum
(Chester, England). Tiny red spot noticed initially and then
faded. Location of spot 31.403N 66.167W. 20cm refractor x90-
x100. Seeing fair-extremely good. NASA catalog assigns a
weight of 3. NASA TLP ID No. #542. ALPO/BAA weight=3.
Gassendi 1966 Dec 27 UTC 06:30-07:05 Observed by Kelsey (Riverside, CA,
USA, 6" reflector?) "Very faint blink on SW (ast. ?) floor & on another
N. of it on NW floor. Obs. considers obs. very suspect" NASA catalog
weight=1 (very poor). NASA catalog ID #1006.
Aristarchus 1954 Oct 12 UT 00:55-02:10 Observed by Bartlett
(Baltimore, MD, USA, 3.5" refractor x100, S=5-6, T=5) "Pale
violet radiance on S.wall SE, E, NE walls, & c.p. At 0409 strong
violet tint E 1/2 of fl.very faint on W. 1/2 of floor & W. wall.
Dark violet on nimbus & pale violet on Mt. m" NASA catalog
weight=4. NASA catalog ID #576. ALPO/BAA weight=2.
On 1989 Oct 14 UT 19:00?, 22:00? P.W. Foley (Kent, U.K., using a 12"
reflector) noted that although the brightness of Aristarchus crater
seemed steady, that there was just too much detil to see inside the
crater than one would expect. Appeared as two craters - Cameron
commented that this was often seen by Bartlett. Several observers
apparently confirmed this TLP? Cameron 1978 catalog extension ID=379
and weight=5. ALPO/BAA weight=2.
Plato 1878 Nov 09 UTC 21:00 UTC Observed by Klein (Cologne, Germany,
6" refractor?) "Faint, but unmistakable white cloud not seen before."
NASA catalog weight=4. NASA catalog ID #207.
Aristarchus 1973 Feb 15 UTC 17:07-19:31 Observed by Theiss (located at
51N 5.67E) "area 4-5 diameters of Aristarchus were coloured clearly
yellow-red" 120mm reflector used. Ref Hilbrecht & Kuveler (1984) Moon
and Planets Vol 30 p53-61. ALPO/BAA weight=1.
Plato 1973 Aug 13 UT 22:25-22:35 observed by Pedler (Devon, UK).
Observer noticed a slight blink on a lighter patch on the floor
just beneath the south(?) rim using Moon blink filters.
ALPO/BAA weight=1.
David Darling observed bright glittering on Aristarchus. This
was followed by a flare up in brightness at 00:38:05 UT in the
comet-like ray area of the crater equivalent in intensity to the
central peak. Then he saw another one on the north east rim of
Aristarchus of the same brightness. A third flare was seen at
00:49UT in south of Herodotus, on the comet-like ray. Another
two flares were observed at 00:56UT on the north west rim of
Aristarchus. Darling suspects that these effects were due
to seeing effects and Cameron agrees. However Weier suspects
that they were TLP? Brightness measurements by Weier were for
the south west rim of Herodotus 8.0, for a spot at the Cobra's
Head 9.0 and 7.5 for C.H. Cameron apparently did not see the flashes
but did suspect that the interior of Aristarchus was a bit unusual.
Don Spain did not see anything unsual at all. Cameron 2006 extended
catalog ID=380 and the observation weight=3. The ALPO/BAA weight=2.
Aristarchus 1967 Dec 16 UTC 22:00? Observed by Farrant (Cambridge,
England, 8" reflector) "Crater took on an unusual appearance on inner
NE (ast. ?) wall. Showed a very pale blue & the opposite wall a pale
red color seen in no other features. Lasted only 10m & survived a
change of eyepieces." Seeing=I (Antoniadi). NASA catalof weight=3
(average). NASA catalog ID #1056.
On 2002 Mar 29 at 02:20-02:38UT C. Brook (Plymouth, UK, 60mm refractor,
x120 - no cloud, slight haze, no wind, seeing good) noticed during
first part of observing period that Aristarchus was getting steadily
brighter, very much brighter than Proclus. This continued until 02:36UT
when it dimmed suddenly over a period of about a minute or so. No
colour effects seen. ALPO/BAA weight=2.
On 2002 mar 29 at 02:20-02:38UT C. Brook (Plymouth, UK, 60mm refractor,
x120 - no cloud, slight haze, no wind, seeing good) noticed during
first part of observing period that Aristarchus was getting steadily
brighter, very much brighter than Proclus. This continued until 02:36UT
when it dimmed suddenly over a period of about a minute or so. No
colour effects seen. ALPO/BAA weight=2. Just as an after thought - was
it Aristarchus that was varying, or Proclus?
Louderback, of South Bend, WA, USA observed a bright area over
Mons Anguis and Eimmart - it resembled a comet and had a bluish
colour and varied in brightness. The colour was confirmed as it
was not seen in a red filter but could be seen in blue and white
light. Other features were checked but did not show anything
similar although a violet glare was suspected in the blue filter. A
sketch was made. Observer made Eimmart 8 in brightness at 07:30UT.
Noted that the area around Eimmart appeared opaque at times and less so
at other times. At 08:52UT the phenomenon was seen again. On May 2nd
a bright spot was still seen in the region but it was not changing
dimensions. During the observation on Apr 30th the atmospheric
transparency was excellent. A 2.5" refractor was used. Reference:
Personal communication from Louderback to Cameron on 1980 Jul 16th.
The Cameron 2006 catalog extension ID of this TLP was 93 and the
weight was 4. ALPO/BAA weight=3.
On 1955 Oct 02 at UT 05:30-05:55 Bartlett (Baltimore, MD, USA, 3.5"
reflector, x100, S=7, T=5) observed the following in Aristarchus
crater: "Viol. gl. on E, NE rim, over EWBS resembled a viol. mist.
Crater itself was hazy, could not get a sharp focus". The Cameron 1978
catalog ID=615 and weight=4. The ALPO/BAA weight=2.
Mobberley noticed that Torricelli B was bright and had an even brighter
spot on the inner north wall. The observation was made from UT19:45-
21:40 using visual and video techniques. There was also a bright region
NNE of Toricelli B, that was noticed. Foley examined the video and
found that the crater faded in brightness over time and also the bright
area to the NNE was not as bright on video as had been seen visually.
Foley speculates that because the CCD camera was sesnitive to the near
IR that maybe the spot was blue?. Foley observed from 21:12-21:21UT and
also saw the bright spot on the inner north wall - but saw a blue halo
around the crater. Response in blue filter, darkening over whole
region. Brightness measures with a crater extinction device (CED)
indicated that the crater was 80-85% the brightness of Censorinus.
There was a bright area NNE of the region. M. Cook observed 22:10-
22:16UT (15cm reflector and seeing III-IV) and also saw that the crater
was very bright indeed with a spot NNE of the region (same position as
28/28 1985 observation) - suspected that the crater might have been
brighter than Censorinus, but judgement effected by seeing. In a blue
filter the crater dulled leaving the bright spot prominent (but only
during a good moment of seeing) - therefore had some suspicion of
seeing effects. At 01:00-01:04UT M. Cook used a 12" reflector on the
area, but the seeing was even worse - but did manage a check of the
brightness of Torricelli B to Censorinus and now made it one quarter of
that of Censorinus and no sign of the crater dimming in the blue as had
been seen earlier in the 6" refletor. A. Cook (Frimley, seeing V) at
21:15UT (Dec 27) thought that Torricelli B looked normal and saw no
colour. At Dec 28 at UT 00:02-00:25 A. Cook obtained some CCD images
through red+IR (Wratten 25) and IR (Wratten 87) but found no colour
differences, though there was a very slight hint that a brightness fade
may have occurred between those two observing times. Note that this
report does not have an entry in the Cameron 2006 Extension Catalog.
The ALPO/BAA weight=4.
Aristarchus 1976 Aug 11 06:44 Observed by Bartlett (Baltimore, MD, USA,
4.5" reflector, 45-300x, S=4-3, T=4) "Pale viol. radiance (gas?) on
plateau m. Dark viol. tinge on nimbus. C.p.=10 deg walls=8deg, & all of
floor=8 deg. W.wall out of focus due to haziness (gas?)." NASA catalog
weight=4 (high). NASA catalog ID #1441.
On 1983 Jan 29/30 at UT20:35-01:00 Sykes (UK?) observed that
Linne appeared to brighten for approximately 20 min and had the
appearance of a point (confirmed). This observation was made
during a major Torricelli B TLP. The Cameron 2006 catalog ID=198
and the weight=5. The ALPO/BAA weight=2.
Torricelli B 1983 Jan 29/30 UTC 20:35-02:30 Observed by Foley (12"
reflector, seeing Antoniadi II, Transparency=good, no spurious colour
seen), Moberley (14" reflector, seeing Antoniadi II, transparency
excellent, spurious colour strong), Cook, J & M (12" reflector, seeing
Antoniadi II-III, transparency moderate). All observers based in
southern England. "Initially crater brightest feature on the Moon, then
it faded. Strong colour also seen by all observers e.g. green-blue to
violet. Report of observations written up in JBAA Vol 100, No. 3, p117
123, (2000) - probably one of the best reorted TLP". The Cameron 2006
catalog ID=198 and weight=5. The ALPO/BAA weight=5.
On 1984 Feb 17 at 19:45-22:20UT P. Madej noticed colour in Aristarchus
and telephoned the BAA Lunar Secton TLP network. Mosely at 21:15UT
observed that Aristarchus was both bright and fuzzy - there was some
spurios color (red on south and blue on the north) but this was
replaced by violet. By 21:30UT (transparency=fair) the centre of the
crater was bluish and the west wall creamy white. the north and south
walls were brilliant white. By 22:00-22:30 UT the seeing had improved
and the crater looked unusual - now the centre was violet and the west
wall duller, off-white. By 05:35UT the crater was difficult to define
according to Cook - 4 bands could be seen under II seeing and the north
rim was fuzzy and less bright than the east wall (this was hazy). P.
Moore observed that the crater was normal at 04:00UT. Cameron 2006
catalog extension ID=242 and weight=3. ALPO/BAA weight=2.
On 1984 Feb 17 at 19:45-22:20UT P. Madej (England, seeing=III-
IV, x50)noticed that the crater Reinhold had a blood red spot
on the northern terraces, at the base of the inner wall in a
summit crater on the last of a crater chain or ridge
descending from the top to floor". Cameron 2006 catalog
extension ID=242 and weight=3. ALPO/BAA weight=3.
Proclus 1972 Nov 21 UT 21:30 Observed by Farrant (Cambridge, England,
8.5" reflector, x130) "Thickened bright ring remained, but the dark
patch had disappeared. (dark patch prob. real temporary phenom. as it
was seen nr. FM when contrasts are strongest, yet disappeared" NASA
catalog weight=1 (very low). NASA catalog ID #1351.
CCD images taken through Wratten 25 (red+near IR) and 87
(near IR only) filters. Between 00:02 and 00:25UT there
was some slight evidence that a fade may have taken place
however careful analysis by Cook casts doubt on this.
Probably it was more related to a degradation in image
quality due to seeing than a true TLP. An ALPO/BAA
weight of 1 has been assigned.
On 1983 Jan 29 at UT22:09 M.Mobberley (Sulfolk, UK, 14" reflector)
noted that Arago B had a slight tinge of violet colour, and was a lot
less (bright?) than Torricelli B's blueness. Other craters checked but
were not showing any blue colour. The Cameron 2006 catalog ID=198 and
weight=5. The ALPO/BAA weight=3.
On 1983 Jan 29 at UT22:09 M. Mobberley (Suffolk, UK), found that Moltke
crater was "exceptionally bright". Other craters (apart from Arago B
Torricelli B etc) appeared normal. The Cameron 2006 catalog ID=198 and
the weight=5. The ALPO/BAA weight=2.
Aristarchus 1973 Oct 12 UTC 18:13-18:45 observed by Pasternak "Bright
region of the S. of the crater, color was red." - Hilbrecht and
Kuveler, Earth, Moon & Planets, 30 (1984), p53-61. ALPO/BAA weight=1.
Enhancement of spectrum in UV and CaI recorded on photoelectric
spectrometer scans by Grainger and Ring in Italy. Effect seen on
Aristarchus. Cameron 1978 catalog ID=740 and weight=5. ALPO/BAA
weight=5.
Aristarchus 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson,
CA ?, 60" reflector? Photometer) "Reddish color in Aris. 0.88
magnitudes brighter than normal (photometry)." NASA catalog weight=5
(very good). NASA catalog ID #758. ALPO/BAA weight=3.
Bullialdus 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson,
CA ?, 60" reflector? Photometer) "1.05 magnitudes brighter than normal
(photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758.
ALPO/BAA weight=2.
Kepler 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson, CA
?, 60" reflector? Photometer) "1.03 magnitudes brighter than normal
(photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758.
On 1970 Nov 14 UT20:10 J.Coates (Burnley Astromical Society,
8.5" reflector, x102 and x204) saw a dirty green colour on the
NW region of the crater, in patches, with a green area nearby.
ALPO/BAA weight=1.
Proclus 1955 Nov 01 UTC 02:50-03:05 Observed by Bartlett (Baltimore,
MD, USA, 3.5" reflector x100, S=6, T=5) "Proc. D normally 5 deg bright
was vis. tonite only in blue light, whereas usually is vis. in
integrated light. However at col. 110.5 deg it was a dark spot (see #
816) C.p. tonite was normal 5 deg bright but in Oct. lun. was dark".
NASA catalog weight=4 (good). NASA catalog ID #625. Note Proclus D does
not refer to the crater Proclus D as defined by the IAU, but probably
to a spot inside the crater that Bartlett designated D!
1969Jan04 UT19:30-20:00 W.Deane (Hendon, UK, 2" refractor)
observed a bright yellow spot just E of Aristarchus, stretching
from the S. end of Montes Harbinger to the S. wall of Prinz. The
ALPO/BAA weight=1. ALPO/BAA weight=1.
Gassendi 1940 Aug 20 UT 03:25 Observed by Haas (NM?, USA, 12"
reflector?) "Largest bright spot on SE pt. of floor had I=8.6
(real changes? see @ '#649, 474, & 475, all similar change)."
NASA catalog weight=4. NASA catalog ID #472. ALPO/BAA weight=2.
Peirescius 1985 Dec 28 UT ~20:56 (Col. 112.5) H. Hill (UK)
observed that this crater was piercingly bright. Repeat
colongitude observations on later dates failed to show a
similar effect. ALPO/BAA weight=2.
Aristarchus 1976 Aug 12 UT 07:30 Observed by Bartlett (Baltimore, MD,
USA, 4.5" reflector 45-225x, S=6=3, T=5) "Nimbus around c.p.=2deg,
S.floor=6deg & was red; rest of floor=8deg. This is only tint in
Aris.). Tonite saw a pale red glow suffasing the S. region of the
crater. Bright blue radiance (gas?) on ENE wall. Viol. radiance on
plateau m gone tonite. Red glow on 13th & the region was yellow-
brown." NASA catalog weight=4 (high). NASA catalog ID #1442.
In 1941 Jul 11 at UT 04:00? Haas (New Mexico?, USA, 12" reflector)
observed near Hansteen "Moving luminous speck, estimated 0.1" diam.,
mag 8 (rept. date was 10. Lunar meteor?". The Cameron 1978 catalog ID=
487 and weight=3. The ALPO/BAA weight=2.
On 1986 Feb 26 at 05:00UT a photograph was obtained by T. Kohman of
Pittsburgh, PA, USA (3.5" Questar and 0.25 sec exposure) that had two
bands above the limb, resembling ejecta plumes. Cameron suspects that
these are probably flare from the eyepiece optics. Cameron 2006
extension catalog ID=282 and weight=0. ALPO/BAA weight=1.
Plato 1870 Apr 17 UT 22:00? Observed by Gledhill? (Halifax, England,
9" refractor) "Group 1 again in illum. as in Aug., Sep. 1869
observations." NASA catalog weight=2 (low). NASA catalog ID #166.
On 1983 Jan 30 at UT 23:45 Chapman (England, UK) observed that
Censorinus was low in brightness. The Cameron 2006 catalog ID=199 and
the weight=4. The ALPO/BAA weight=2.
On 1983 Jan 30 at UT 23:45 P.W. Foley (Kent, UK, 12" reflector)
measured that the brightness of the region around Toricelli B was 2.3
(high) and there was a slight blue colour. The Cameron 2006 catalog ID=
199 and the weight=4. The ALPO/BAA weight=2.
Gassendi 1967 Jan 28 UT 00:04-01:06 Observed by Moseley (Armagh,
Northern Ireland, 10" refractor, x350, Seeing=Good) "Small moon blink
(Eng.) not quite concentric with the crater, half way from c.p. to SE
(IAU?) wall. Lasted till 0007h then clouds. Seen again at 0100h-0106h,
then lost with poor seeing. Looked again at 0148, 0230, 0310, but neg.
Other areas also neg." NASA catalog weight=4 (high). NASA catalog ID #
1013.
Aristarchus 1969 Dec 26 UT 03:35-03:45 Observed by Kilburn (England,
6" x192) "Suspected faint blink & glow outside of SW(IAU?) wall. Large
area was gray toward Herod. Another blink inside between 2 bands
at0330h. At 0345h neither blinks seen. Blink seen in blue (=red
event?). Next nite crater was normal." NASA catalog weight=3 (average).
NASA catalog ID #1231.
Aristarchus 1968 Dec 07 UT 07:00? observed by Corralitos Observatory
(Organ Pass, NM, USA, 24" reflector+Moon Blink) "Bluing around 3
craters, strongest at Aris. Lasted several days. Photos show 30% more
intensity in blue filter than in red or neutral. Moon's declination
northerly. Obs. think it was due to atm. effects" NASA catalog weight=5
(very high). NASA catalog ID #1105.
On 1968 Dec 07 at UT 07:00? Corralitos Observatory (Organ Pass, NM,
USA, 24" reflector and Moon Blink device) observed a bluing around
three craters, one of which was Kepler. This effect lasted several
days. Photographs were taken that show30% more intensity in the blue
filter than in red or neutral. The Moon's decination was northerly. The
observers suspect that it was an atmospheric efect and not a TLP. The
Cameron 1978 catalog ID=1105 and the weight=5. The ALPO/BAA weight=3.
Plato 1971 Dec 04 UT21:00-21:10 D.B.Taylor (Dundee, UK, 10"
refractor, conditions poor and turbulent). Observer suspected
colour orange colour near bright spot on north wall. Observation
ceased due to being clouded out. ALPO/BAA weight=1.
Gassendi 1940 Jul 22 UT 05:00 Observed by Haas (NM?, USA, 12"
reflector?) "Largest bright spot in SE part of floor had I=8.6,
but 6+ on other dates. (see #472, 474 & 475). (8.6 is normal?)"
NASA catalog weight=4. NASA catalog ID #469. ALPO/BAA weight=3.
Proclus 1956 Jul 25 UTC 06:16-06:33 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector, x180, S=3-5, T=4) "C.p.
distinctly vis. within floor shadeo, est. 5 deg bright but no
trace of it at col. 122.37deg in Oct, '55(Oct. 4?)." NASA
catalog weight=4 (good). NASA catalog ID #645. ALPO/BAA
weight=2.
On 1897 Oct 13 at UT 20:00 Pickering (Cambridge, Mass. USA, 15"
refractor?) observed in Shroter's valley and the vicinity, "Variations
in vapor column" The Cameron 1978 catalog ID=292 and the weight=1. The
ALPO/BAA weight=1.
Aristarchus 1976 Aug 13 UT 07:30 Observed by Bartlett (Baltimore, MD,
USA, 4.5" reflector 45-225x, S=6=3, T=5) "Nimbus around c.p.=2deg,
S.floor=6deg & was red; rest of floor=8deg. This is only tint in
Aris.). Tonite saw a pale red glow suffasing the S. region of the
crater. Bright blue radiance (gas?) on ENE wall. Viol. radiance on
plateau m gone tonite. Red glow on 13th & the region was yellow-
brown." NASA catalog weight=4 (high). NASA catalog ID #1442.
On 1985 Dec 29th at UT 23:23-23:58, M. Mobberley (Bury St. Edmunds,
Suffolk, UK, seeing II-III) made a video scan of the Moon. P.W. Foley
examined the tape and noted something that Mobberley had not seen
visually. Two scans of Totticelli B had taken place, one at 23:23 and
the other at 23:58UT. In the first a brilliant point appeared briefly,
on the western rim, positioned at 3o'clock. In the second video
sequence this brilliant spot was present continuously and wandered
along the rim. It was possible to monitor frequency of turbulence
present, this apparent movement did not ppear to conform, although
judgement here was extremelydifficult as the feature was at absolute
point of resolution, a little better than 0.5 mile. Also considered was
the implication of the equipment effect, this did not seem to fit
either as other nerby craters in the same configuration, 30% shadow
filled with sunlight on exterior of western walls. A point to watch for
in future. ALPO/BAA weight=3.
Janssen K 1992 Sep 14 UTC 21:30-0025 Observed by Brook (Plymouth, UK,
4" reflector, Antoniadi II seeing). "Crater > & similar one was sharp
EW wall especially bright. Floor in shadow. No obscuration on floor but
no detail in bright part could be seen. At 23:20 had dimmed slightly,
continued to do so. At 00:40 was noticeably < Began to see detail
00:25, TLP over. G. North (Herstmonceux, 18" reflector) took photos in
this time K was grayish, not very bright. C. Brook noticed K very
bright condition its rays 1/2 length. L. Harris (UK, 10" Reflector with
CCD camera). Cameron 2006 catalog ID=453 and weight=5.
In 1897 Oct 14 at UT 00"50 Pickering (Cambridge, Mass. USA, 15"
refractor?) observed "Refractive displacement of lunar atm. at
bright limb was 0.4" (time is for occultation of Alctone in
Pleiades)" The Cameron 1978 catalog ID=294 and the weight=3. The
ALPO/BAA weight=1. Note this may? refer to an occultation, in
which case it will be pointless to observe again for a
particular illumination.
Messier & A 1972 Aug 27 UT 08:51-09:21 Observed by Hansen (LeMoore, CA,
USA, 6" reflector, x200) "Perculiar thread of shadow connecting the 2
craters. Sun's elev. @ 6deg. Drawing (possibly a high peak on E.wall of
A casting a shadow?)" NASA catalog weight=1 (very low). NASA catalog ID
#1342.
Birt 1972 Sep 25 UT 23:20-23:45 Observed by Doherty (Stoke-on-Trent,
England, 10" reflector x280, S=VG) "All bright areas were similar in
intensity (albedo) but 2 larger ones at times seemed brighter. N & S.
The E. IAU? wall of the small craterlet showed most prominently & at
times suspected a faint pt. of light just W. of its center. This was
very suspect however." NASA catalog weight=1 (very low). NASA catalog
ID #1345.
Grimaldi 1937 Sep 23 UT 05:00 Observed by Firsoff (Glastonbury,
England, 6" reflector + filter) "Variations in green. Strong green on
this date. Other dates of variation are:
Date Time Color
4/29/37 0930 slight
3/23/38 09?30 strong
7/24/38 0830 gray-green
NASA catalog weight=4 (high). NASA catalog ID #424.
On 1944 Mar 12 at UT 23:00 H.P. Wilkins (Kent, UK, 8.5" reflector)
observed that Plato appeared incomplete - the central crater had it's
north wall obscured. cameron comments that maybe this was due to the
low altitude of the Moon? The Cameron 1978 catalog ID=491 and
the weight=4. The ALPO/BAA weight=2.
Darling, alerted by Keyes saw Aris >> brighter obj on moon (as
it normally is) Comet ray & N rim of Herod. >> could see no
detail - Aris. except two bands, moon was pale yellow (low alt.)
with halo around it. Nothing unusual elsewhere. Cameron 2006
catalog extension ID #384 and weight=0. ALPO/BAA weight=1,
just in case there is some merit in this report?
Near Bacon, Barocius, Nicolai i.e. 16E-25E, 52S-42S 1878 Nov 13 UTC
02:30 Observed by Hammes & others (Oskaloose, Iowa, USA, 6.5"
reflector) "Lunar volcano (drawing) (investigation & correspondence
cast doubt on location)" NASA catalog weight=? NASA
catalog ID #208.
LeCroy Jr. and Sr. (Springfield, VA, 4.5" reflector, x75, S=VG, T=3)
observed the following in the Aristarchus and Herodotus region: "Prior
to 0542h the 2 craters were 2 bright spots within bright areas. Then a
brightness developed merging them together into one big bright area
with no discernable details. Returned to normal at 0554h. Sketches.
Albedo=10+ where normal albedo is 9.5". The Cameron 1978 catalog ID=
1413 and weight=4. The ALPO/BAA weight=3.
On 2006 Dec 08 at UT 17:32 (+/- 2 min) M. Collins (Palmerston
North, New Zealand, 3.5" Maksutov, 40mm eyepiece, seeing III-IV)
observed during daylight hours an extremely bright flash south of
Godin. It flared up and down over a fraction of a second an appeared
three times brighter than the Moon background itself. The ALPO/BAA
weight=1.
Plato 1877 Nov 23 UT 22:00? Observed by Crain, Klein, Eng.
officer (France?, Cologne, Germany, England?, 6" refractor?) "A
luminous triangular object on floor & each craterlet on floor
outlined as a lum. pt. (indep. confirm.?)" NASA catalog weight=5
(very high). NASA catalog ID #199. ALPO/BAA weight=4.
C.Brook (Plymouth, UK) noticed that the east wall of this crater was
brighter than the walls of nearby craters. Cameron comments that Foley
says that this is normal and agrees. Cameron 2006 Catalog Extension ID=
433 and weight=1. ALPO/BAA weight=1.
Plinius 1937 Jul 27 UT 04:37 Observed by Haas (Alliance, OH,
12"? reflector) "E. end of c.p. varied in intensity at similar
lighting conditions. Intensity was low est on this nite, being
at I=5.0. Other nites were:
Date Time col. I
6/23/37 0600 84 8.5
7/20/37 0200 58 6.0
7/22/37 0300 78 6.5
9/22/37 0700 114 6.0
9/24/37 0830 142 6.5
10/17/37 0100 59 8.5
10/21/37 0500 109 8.5
NASA catalog weight=4 (good) on this and the nights listed. NASA
catalog ID #422. ALPO/BAA weight=3.
Aristarchus 1969 Dec 28 UT 00:24 Observed by Kilburn (England, 6"
reflector x192) "Blink in same place as #1231. Very faint and large
area." NASA catalog weight=3 (average). NASA catalog ID #1232.
Something resembling a cigar shaped shiny object seen
on S rim - hanging over a smaller crater. It looked like a bright
aluminum can in the sun & cast a shadow onto the rim. The length
was 8-10 miles long x 1 mile wide at the central point.
It appeared tapered to points at both ends. Observer studied it
for several hours. S term. ~60-70miles away. Apparently not related
to topog. Alt. 8deg. Cameron 2006 Extension catalog weight=3.
ALPO/BAA catalog weight=1.
Observed by Bartlett (Baltimire, MD, USA, 5" reflector, x150) "N. half
of crater hazy & ill-defined". S=5, T=4. NASA catalog weight=4 (good).
NASA catalog ID 571.
Schroter's Valley & Vicinity 1897 Oct 15 UT 19:00 Observed by
Pickering (Cambridge, Mass. USA, 15"? refractor) "Variations in vapor
col. change in direction of cloud rising from F is marked - (time est.
from given colon.)" NASA catalog weight=3 (average). NASA catalog ID #
292.
Theophilus 1971 Dec 06 UT 21:35-23:20 Observed by Findlay, Ford,
Taylor, Robbie (Dundee, Scotland, 10" reflector x180), Bolger
(Chester, England), Fitton (Lancashire, England, 8" reflector).
"Red-orange patch on E. (IAU?) floor even without a blink.
Others confirmed. Dimmed by 2105h but still seen. Dimmer yet at
2230h & gone at 2300h. Baum saw brownish-red patch at 25.5E,
12.5S. Taylor saw reddish patch SE of crater, fainter at 2220h,
gone at 2300h. Fitton saw image very dull,yellow & steady.
Filters showed nothing unusual, & nothing seen at 2320h." NASA
catalog weight=5. NASA catalog ID #1320. ALPO/BAA weight=3.
Aristillus 1939 Sep 03 UT 05:00 Observed by Haas? (New
Mexico?) "Dark area in W. part of floor was I=4.0, comp. with
I=1.3, & I=3.7 (see #450, & #454). Used different telescope,
but can't explain diff. in albedo, since phase is similar in 2
& dist. from term. similar in all (normal?)." NASA catalog
weight=4. NASA catalog ID #459. ALPO/BAA weight=3.
Aristillus 1939 Jul 06 UT 05:00 Observed by Haas? (NM?, USA,
12" reflector?) "Dark area in W. part of floor was I=1.3 but
other dates were brighter. or same. yet cond. similar (see #
454, 459 & 461)" NASA catalog weight=4. NASA catalog ID #450.
ALPO/BAA weight=3.
Fracastorius 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth,
England) "Blink seen. Floor brighter in red than in blue. Suspects
colour is spurious". NASA catalog weight=1 (very low). NASA catalog ID
#1410.
Plato 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth, England)
"Blink seen. Floors brighter in red than in blue". NASA catalog weight=
1 (very low). NASA catalog ID #1410.
Theophilus 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth,
England) "Blink seen. Floor brighter in red than in blue". NASA catalog
weight=1 (very low). NASa catalog ID #1410.
Aristarchus 2004 Dec 02 UT 03:00 Observed bt Michael Amato (West Haven,
CT, USA, 127mm Maksutov, x123) "The brightness variation (as seen by
Brook earlier) was very apparent. One thing never seen before by Amato
was a thin short bright ray that extended out in the opposite direction
as Aristarchus bright ray". The higher the Moon climbed in the sky the
more obvious this short thin bright ray became. An ALPO report.
Aristarchus 1973 Oct 16/17 UT 22:16-01:00 Observed by Morgan
(England) "Invis. of NW wall bands. Seeing by no means
perfect" NASA catalog weight=1. NASA catalog ID #1376.
ALPO/BAA weight=1.
Aristarchus region 1955 Sep 07 UT 03:00 Observed by Firsoff (Somerset,
England, 6.5" reflector x200, S=VG) "A dirty brown misty effect on the
area NE (Ast. ?) of crater. Darkened in blue & yellow filters alike."
NASA catalog weight=5 (very high). NASA catalog ID #608.
Copernicus 1955 Sep 07 UT 03:20 Observed by Firsoff (Somerset, England,
6.5" reflector x200, S=VG) "Brightening up of crater in the blue
filter" NASA catalog weight=4 (high). NASA catalog ID #607.
In 1955 Sep 07 at UT 03:45-05:20 Bartlett (Baltimore, MD, USA, S=5, T=
3) observed the following in Aristarchus crater: "Strong blue-viol. gl.
in E, NE rim & E. base of c.p. Dark viol. nimbus, granular aspect of
floor". Cameron suggests that this is confirmation of Firsoff's TLP of
the same day? The Cameron 1978 catalog ID=609 and weight=5. The
ALPO/BAA weight=2.
Eratosthenes 1976 Sep 14 UTC 04:24 Observed by Bartlett (Baltimore, MD,
USA, 4.5" reflector, 45-300x, S=6, T=3 hazy) "Pseudo shadow F
disappeared & wall here is same intensity as whole inner crater wall, =
4deg. No change in X, X3 or X2 (4 deg much brighter than normal)." NASA
catalog weight=4 (good). Cameron c1978 atalog ID=1453 and weight=4. The
ALPO/BAA weight=2.
Aristarchus 1956 Jul 28 UT 05:20-05:55 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector, x180, S=5, T=4) "Vivid blue-
viol. gl. on c.p., band across E. floor, & EWBS, E. & NE wall".
N.B. The effect had vanished by 07:20UT. NASA catalog weight=4.
NASA catalog ID 646. The ALPO/BAA weight=2.
On 1997 Jul 25/26 at UT 23:00-00:00 S. Fox (Dundee Tayside, Scotland,
UK, 15cm f/5 reflector with x4 Barlow). A series of photographs were
taken that show a glow just beyond the terminator, near to Callipus
crater. Almost certainly this is lens flare from the Barlow lens. The
ALPO/BAA weight=1.
Taurus Mts 1955 Sep 08 UT 01:35 (Sep 08 EDT 07:35) Lahbert (Irenton,
Ohio, USA, small telescope x 90) observed: "Attention directed to mts.,
saw 2 distinct flashes 1/4s apart that came from edge of those mts.
(mts. in dark)." Cameron 1978 catalog weight=3 (average) and ID = 611.
ALPO/BAA weight=2.