In 1962 Sep 16 at UT08:05 Wildey, Pohn (Mt Wilson, CA, USA, 60"
reflector) Taruntius faded from Vmag-3.21 to 4.04, a 0.82 difference in
magnitude in 2.5 hours - a photometric measurement. The average
magnitude for this age is 4.03, so therefore the crater had brightened
by two times above normal. The Cameron 1978 catalogID=769 and the
weight=5. The ALPO/BAA weight=3.
Aristarchus 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.
Aristarchus 1969 Jun 30 - Jul 01 UT 23:37-00:00, 00:02-00:05
Observers: Moore (Sussex, UK, 12.5" reflector x360), Altizer,
Arabanel (Corralitos Obs., Organ Pass, NM, USA, 24" reflector)
"SE wall was orange, detected by Eng. MB Fading by 2353h, only a
trace at 2358h & disappeared at 0000h. Later at 0002-0005h
suspected again. Alt. was low. Bluring around crater seen at
Corrralitos Obs. in the MB, but immeasurable on photos." NASA
catalog ID #1150, NASA weight=2(for Moore), 5 (for Corralitos
Obs). ALPO/BAA weight=3.
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.
Plato 1966 Sep 02 UT 0625 Observed by Kelsey (Riverside, California,
USA, 8" reflector x300) "Landslip at west would not focus. (Ricker not
certain it was a real LTP)." NASA catalog weight=2 (low). NASA catalog
ID 973.
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.
In 1950 Jul 02 UT07:22 Bartlett (Baltimore, MD, USA, 3.5"
reflector) saw no dark bands on the inside of Aristarchus,
despite detail being seen elsewhere. He would normally have
expected to have seen bands at this colongitude, based upon past
observations. The ALPO/BAA weight=2.
Aristarchus 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.
On 2002 Sep 23 at UT22:45-23:56 C. Brook (Plymouth, UK) noticed that
the bands inside Aristarchus varied (UT22:45-22:56) in definition
whilst the rim of Herodotus and the rays of Kepler and Copernicus
remained sharp. These bouts of variation were 1-2min in duration. At
23:56UT when he checked again the periodic blurrings of the bands were
still present. The observer suspected atmospheric effects. M.Cook
(Frimley, UK) observed 22:00-22:30 and could see only 2 bands on the
west wall - but this may have been because of poor transparancy. The
ALPO/BAA weight=1.
In 1962 Sep 16 at UT08:05 Spirad (Victoria, B.C., Canada, 48"
reflector) obtained a spectrum with a UV emission, in H & K lines
compared to Jupiter and Mars. II-AO plates, 6A/mm dispersion.
Fraunhofer lines much shallower than planetary ones. (whole
Moon). The Cameron 1978 catalog ID=770 and weight=5. The ALPO/BAA
weight=4.
On 2009 Jun 11 at UT01:00-01:15 C. Brook (Plymouth, UK, 2" refractor,
x25, seeing excellent and no cloud or haze) obsrved fluctuations in the
brightness of Aristarchus crater. No brightness fluctuations were seen
elsewhere. The ALPO/BAA weight=1.
Aristarchus 1964 Aug 26 UT 02:00-03:00 Observed by Genatt, Reid,
(Greenbelt, MD, 16" reflector, x360, S=P-G), and Lindenblad
(Washington, DC, USA, 26" refractor) "Red and Blue bands. Grew
thinner & shorter. Alerted Naval Obs. One obs. tho't he saw
Phenom. but not sure. (confirmation ?). (prof. astronomers, but
not lunar observers)" NASA catalog weight=5 (very high). NASA
catalog ID #844. ALPO/BAA weight=3.
In 1957 Feb 10 at UT 22:00 an unnamed observer repirted a TLP somewhere
on the Moon. The reference for this comes from: Palm, A. 1967, Icarus,&
(2), p188-192. The cameron 1978 catalog ID=662 and weight=0. The
ALPO/BAA weight=1.
On 1975 Mar 02 at UT05:00-06:18 P.W.Foley (Wilmington, Dartford,
Kent, UK, 12" reflector) observed blueness along the southern
wall of Plato. This is a BAA observation. Note that it
is assumed that this is the same as Cameron's catalog 1975
Mar 02 UT 01:00 or 23:00 report by an Unknown English Observer
who apparently observed colour in Plato (Red or violet). The
Cameron 1978 catalog ID=1402 and weight=1. The ALPO/BAA
weight=1.
Aristarchus 1961 Nov 27 UTC 23:30 Observed by Kozyrev (Crimea, Soviet
Union) described in NASA catalog as: "Emission lines in spectrum of
c.p. in red & blue, H2 identified, (he had obtained C2 & Swan bands in
Alphonsus in '58 & '59" 50" reflector used. NASA catalog weight=5 (very
high). NASA catalog TLP ID No. #755.
Agrippa 1966 Sep 05 UTC 04:47-05:00 Observed by Bartlett (Baltimore,
MD, USA, 5" reflector, 283x) "Within the wall shadow, the landslip was
faintly illum., est. at 4, & distinctly brownish". S=6-1, T=3-1. NASA
catalog weight=4 (good). NASA catalog ID #975.
On 1985 Sep 04 at UT 22:15 A.V. Arkhipov (Russia) detected a bright
flash in Mare Tranquilitatis that lasted < 1 second and had a diameter
of < 2 arc seconds i.e. the limit of seeing resolution. The Cameron
2006 catalog ID=280 and the weight=3. The ALPO/BAA weight=3.
Aristarchus-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.
Alphonsus 2002 Sep 27 UT 00:00-02:15 Observed by Clive Brook (Plymouth,
UK) "Central peak was bright 00:00 UT but had faded by at least 2 deg
on the Schroter scale - no colour seen. Observer continued observing
until 02:15 UT but central peak had dimmed considerably by then"
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.
On 1980 Oct 30 at UT03:19-03:41 P. Madej (Huddersfield, UK, 158mm f/4
reflector, seeing I-II, and transparency very good. Wratten 15 (yellow)
and Wratten 35 (purple) used. No spurious colour seen). At 03:19UT, the
observer noted that Mons Spitzbergen looked sharper at x52. At x72
bright flashes of a bright lunar gray to a light orange colour seen.
BAA Lunar Section TLP team alerted. At 03:32UT a yellow filter used and
the flashes were better seen, one flash approximately 20-30 sec apart.
At 03:31UT Madej used a purple filter and could not see Mons
Spitzbergen but did see the flashes (45-60 sec apart). cameron 2006
catalog TLP ID=118 and weight=3. ALPO/BAA weight=3.
Plato 1980 Oct 30 UT 05:00-0704 Observed by F.C. Butler (SW
London, UK, seeing III, but worsening (but not as bad as IV)
towards the end of the observing period, transparency 100%
clear, 22cm Newtonian reflector, x144, x185). The floor seemed
quite devoid of detail, apart from a vague mottling seen during
the briefest moments of best seeing conditions. At the start of
the observing period he could just glimpse the central craterlet
at x185, but could not be sure. ALPO/BAA weight=1.
On 1994 Apr 03 at 11:23UT D. Darling (Sun Praire, WI, USA) noticed that
Copernicus crater had a red spot on the west wall (found using Moon
Blink filters Wratten 29 and Wratten 38). The ALPO/BAA weight=3.
Alphonsus 1958 Dec 03 UTC 11:00? Observed by Alter, Mt Wilson, CA, USA,
60" reflector "Photog. spect. showed floor of crater redder than
neighboring areas outside its walls. (Palm had a rep't for this date --
same area?). NASA catalog weight=4 (high). NASA catalog ID #710.
On 1994 Jan 04 at UT21:00 J. Nibbering (Rosendaal, Netherlands)
obtained a photograph that shows a large crescent of light centred on
Tycho crater, but includes also: Lilius, but not to Clavius. Cameron
suspects strongly that it was caused by camera lens flare. The Cameron
2006 catalog ID=471 and the weight=5. The ALPO/BAA weight=1.
On 2009 Jun 16 at UT 03:20-03:40 P. Morgan (UK, 30.5cm reflector, x400,
seeing=6/10 and transparency=5/5) observed a large diffuse ashen-like
effect over the shadow filled floor of Plato. The effect was lighter
towards the south. Observer checked the effect with both left and right
eyes and it remained the same. Unusually no shadow spires from rim
moutain peaks were seen. A check for colour in the region effected
revealed none. As time progressed, terrestrial twilight encroached. A
sketch was made. The ALPO/BAA weight=1.
On 1981 Oct 21 at UT 11:35-11:48 B. Hobdell (St Petersberg, FL, USA,
10" reflector) found that the south peak of Plato on floor glowed white
at 11:35UT, then a milky shade spread all aorind Plato's floor
(previously completely shadow filled). The needle like shadows started
to be indistiguishable through the sunlight (dawn on Earth). The cloud
like feature was washed out by daylight at 11:48UT and conformed to the
"white area except a tail that reached the cetre of Plato" Spurious
colour was not seen. The Cameron 2006 catalog ID=157 and weight=3.
On 1981 Oct 21 at UT13:40-13:45 D. Louderback (South Bend, WA, USA,
10" reflector) observed a cloud on the north east quadrant of
Aristarchus crater, and also covered the bright spot on the east wall
(Cameron says that the east wall bright spot is Bartlett's "EWBS".
Louderback mentions that this TLP gave Aristarchus a diamond ring
effect. The Cameron 2006 catalog ID=157 and weight=3. The ALPO/BAA
weight=2.
Aristarchus 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 1788 May 01 at UT 01:00? Schroter (Lilienthal, Germany, reflector
used) observed a small depression near Aristarchus, 1, that had a
strong glimmer. The Cameron 1978 catalog weight=4 and ID=45. The
ALPO/BAA weight=2.
Aristarchus 1961 Dec 3 UTC 03:05-03:40 Observed by Kozyrev (Crimea,
Soviet Union) described in NASA catalog as: "Emission lines in spectrum
of c.p. red & blue, H2 identified, several km2 area. Projected into
shadow cast by W. wall. Source rose to a height above the crater. 50"
reflector used NASA catalog weight=5 (very high). NASA catalog TLP ID
No. #756.
On 1977 Dec 07 at 04:24UT (assuming that this is not local time) V.M.
Chernov (Soviet Union) observed that the north cusp was more than 180
deg and a bright dot seen. Ashen light visible. Moon 3.5 days before
New Moon. On 6th Dec at 04:20UT the cusp was seen to be normal. The
ALPO/BAA weight=1.
On 1977 Dec 07 at 04:24UT (assuming that this is not local time) V.M.
Chernov (Soviet Union) observed that the south cusp was more than 180
deg. Ashen light visible. Moon 3.5 days before New Moon. On 6th Dec at
04:20UT the cusp was seen to be normal. The ALPO/BAA weight=1.
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.
On 1977 Dec 08 at 04:04UT V.M. Chernov (Soviet Union) observed that the
south cusp was prolongated into Ashen light. This is the only occasion
where he had seen this effect on two successive nights. However a
similar effect was seen by F. Gruihuisen on 1840 Mar 5th and 6th. The
ALPO/BAA weight=1.
On 1788 May 08/09 at UT 20:00-01:00? Mechain (France) observed bright
spots near Aristarchus. This was confirmed by Schroter and Bode
(Lilienthal, Germany, 7" reflector and refractor). The Cameron 1978
catalog weight=5 and ID=46 & 47. The ALPO/BAA weight=4.
In 1965 Jul 02 at UT 04:20-05:50 Albert and Welch (Azuss, CA, USA, 8"
reflector, x375) and Emanuel (West Covina, CA, USA, 4.5" reflector)
observed 4th magnitude star-like flashes to blotches in Aristarchus, in
ashen light. Cameron says that this is independent confirmation and
also that the date in MBMW is 7/1/65 which is local time + 2nd UT. The
Cameron 1978 catalog ID=881 and weight=3. The ALPO/BAA weight=3.
On 1969 May 20 at UT 19:35-20:30 Gomez (Spain, 12" reflector) observed
blue-white pulsating light in Aristarchus that illuminated the inner
walls - it was maximum at 19:55UT. This observation was made during the
Apollo 10 watch. The Cameron 1978 catalog ID=1128 and weight=5. The
ALPO/BAA weight=2.
South Cusp 1969 Jul 19 UT 17:55-19:10 Observed by Dzapiashvili
(Georgia, Soviet Union) "Saw an abnormally bright spot at end of
S.cusp. Polariz. meas. at 8.3% at 1845-1847h (Apollo 11 watch?)"
NASA catalog weight=5 (very good). NASA catalog ID #1164.
On 1985 May 24 at UT 21:01-22:40 P.W. Foley (Kent, UK, 12" reflector)
observed that Aristarchus was very bright (varied) and had a strong
(transient) red/rose colour and the crater floor was glowing. Detail
was visible. Mobberley (Suffolk, UK) also found the floor of the crater
to be "glowing". Photographs of Earthshine excellent. The Cameron 2006
catalog ID=274 and the weight=5. The ALPO/BAA weight=3.
On 1984 Jul 04 UT 22:08-23:09 Foley (12" reflector, Kent, UK) found
that Censorinus gave a low brightness CED reading of 58%, despite all
other measured points on the Moon as being normal. M. Cook (Frimley,
UK) found Censorinus to be extremely dull compared to Proclus. J.D.
Cook (Frimley, UK) found Censorinus to be quite dull, barely above
background levels. The Cameron 2006 catalog ID=246 and the weight=4.
The ALPO/BAA weight=3.
On 1984 Jul 04 at UT 22:05-23:09 Richardson (Swinton, Yorkshire, UK,
seeing=VE) found that a peak west of Theophilus crater had a deep blue
colour, and this was strange because no colour was seen elsewhere on
the Moon. Foley (Kent, UK, 12" reflector), once alerted, found a dome
east of Kant? to be blue, and likewise no colour was seen elsewhere on
the Moon. Cameron 2006 catalog ID=246 and the weight=4. The ALPO/BAA
weight=3.
On 1984 Jul 04 UT 22:08-23:09 Foley (12" reflector, Kent, UK) found
that Torricelli B was a much lower brightness than was expected and
this remained the case for the rest of the lunation. The Cameron 2006
catalog ID=246 and the weight=4. The ALPO/BAA weight=1.
Knopp of Paysandu, Uruguay on 1885 Feb 21 at 23:00-23:30? UT saw red
patches in the crater. Reddish smoke or mist. The observer says several
others had seen a star like point there that night. Cameron's 1978
catalog ID=348 and weight=4. ALPO/BAA weight=3.
Triesnecker Rille 1912 May 23 UT 18:00? Observed by Gordeenko
(Russia) "Change in shape from representation by Brenner and
Krieger not accountable by lighting conditions" NASA catalog
weight=0. ALPO/BAA weight=1. NASA catalog ID #339.
Proclus 1972 Jun 18 UTC 20:50-21:15 Observed by Kern (8.75E, 48.25N,
60mm refractor) "Yellow to white bright pattern at the NW wall, visible
only occasionally" S=4, T=3 Ref: Hilbrecht & Kuveler Moon & Planets
(1984) Vol 30, pp53-61.
Censorinus 1984 Jul 05 UT 21:05-21:25 Observed by Cook (24" reflector
with line scan photodiode array at Mill Hill observatory, London) "Two
line scan photodiode array images were taken which used the motion of
the Moon to build up an image. The first image at 21:25UT did not
include all of Censorinus, but the part that it did include was not
very bright. The 21:25UT image did include all of Censorinus and the
crater was bright, including the part that was just visible in the
previous image. Possibly the seeing was worse at 21:05? and this could
explain the brightness descrepency, but it is worth checking again by
taking images at the same illumination conditions" BAA Lunar Section
report. At 21:17 M. Cook (Frimley, UK) found Proclus to be brighter
than Censorinus (more so than the previous night) and obtained variable
readings for Censorinus. Cameron 2006 catalog ID=247 and weight=3.
ALPO/BAA weight=2.
On 1871 Nov 20 at UT 17:30-19:30 H. Pratt (UK) saw one of the most
spectacular TLP obscurations that he had ever seen in Mare Frigoras. He
observed a kind of haze around the north west (NE?) slopes of Plato.
This effect was not seen elsewhere and all objects in Mare Frigoris
were indistinct or veiled. By 18:30 the effect was modified and by
19:30 very little trace was seen. Ref. from Corliss.
Knopp of Paysandu, Uruguay on 1885 Feb 22 at 23:00-23:30? UT saw a
definite light, looking like Saturn in Cassini?. The previous night he
had seen red patches in the crater. Cameron's 1978 catalog ID=348 and
weight=4. ALPO/BAA weight=2.
Plato 1972 Jun 19 UT 21:40-22:30 Observed by S.A. Jones
(Swansea, Wales, 12" reflector x150) and Moore (Selsey, England,
12.5" reflector x450) "Noted a bright area in the center. Moore
noted nothing unusual & he tho't obs. saw one of permanent light
patches" NASA catalog weight=0 (very low). NASA catalog ID #
1336. 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.
Plato 1895 May 02 UT 20:45, 23:45 Observed by Brenner and Fauth
(Germany?) "Streaks of light (Brenner) bright parallel bands in
center Fauth (indep. confirmation?)." NASA catalog weight=5.
NASA catalog ID #284. ALPO/BAA weight=1.
On 1979 Dec 27 at UT 05:32 D. Louderback (South Bend, WA, USA, 6"
reflector x240, seeing=3-6/10 and T=4) noticed "2 small high-sun areas
nr. Eimmart - brightening around Mare Crisium, except for interior of
Proclus - in blue light. They were brighter than 2 spots on Cap.
Agarum rated 8.5 & Proc. 9. Not as bright next night. Probably a real
blue light brightening". Cameron 2006 catalog ID=79, location on Moon:
(70E, 23N) and weight=4.
Plato 1907 Jan 22 UT 20:00 Observed by Fauth (Germany?) "Glow of light
in part of crater" NASA catalog weight=3 (average). NASA catalog
ID 327.
Plato 1932 Apr 15 UT 06:57 Observed by A.V. Goddard & friend
(Portland, Oregon, USA, 16" telescope, S=G steady) "Sudden
appearance of a white spot like a cloud of steam (in appearance
only), and in less than a minute it had spread in a NW
direction, until it almost reached the rim of the crater" NASA
catalog weight=4. NASA catalog ID #403. ALPO/BAA weight=4.
On 1938 Mar 13 at UT 04:00-06:00 Barker (Chestnut, England, UK) noted a
slight reddish colour in Plato. However Fox (Newark, UK, 6.5"
reflector, x240) saw none on the south east wall, but instead saw a
yellowish glow on the southern floor at the same time (confirmation?).
Appearently Fox saw the same effect on Apr 10, 11, and May 8-11, then
on June 8-10. The Cameron 2006 catalog ID=432 and the weight=5. The
ALPO/BAA weight=3.
SE of Langrenous 1947 Aug 28 UT 21:00? Observed by Baum
(Chester, England) A long mountain mass, on limb to the SE of
Langrenus crater, had a decidedly bluish cast. To the north, on
the limb, were several ordinary peaks appearing in profile and
some were sharp and pointed. NASA catalog ID=498. NASA catalog
weight=3. ALPO/BAA weight=2.
On 1891 Sep 16 at UT 19:00? Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Dense clouds of vapor apparently rising from its bottom and pouring
over its SW wall torrds Herodotus. He says no activity till day after
sunrise & ceases a few days before sunset. (Part of an extensive
observing of only a few features under all aspects of lighting.
Drawings and Phtos obtained." Cameron 1978 catalog ID=269 and weight=1.
ALPO/BAA weight=1.
Aristarchus 1972 Jun 25 UTC 22:42-22:51 Observed by Quindeau (8deg 35'
E, 51deg 25' N, 60mm refractor) "Bright point at NE wall of crater".
Ref: Hilbrecht & Kuveler, Earth Moon & Planets, Vol 30, pp53-61 (1984).
On 1985 Sep 28 UTC 20:54-23:52 P.W. Foley (Suffolk, UK) found (actually
before 20:54 UT) brightness variance in Torricelli B. J.D. Cook
(Frimley, UK) observed a brief blue coloured patch somewhere in the
Torricelli B region, but could not pin it down precisely. At 22:50UT
M.C. Cook (Frimley, UK, 30cm reflector, seeing III - occasionally V,
transparency moderate to good) Found the crater to have an elongated
appearance (in SSW-NNE direction) in white light, similar to the
previous night. A bright elongated spot was seen on the NNE floor,
close to where the wall should be. Not able to define the rim. There
was a very dark surrounding area to the crater, similar to what it was
on the previous night (roughly 1/4 brightness of Censorinus). 23:04UT
brighter in yellow, then red, then blue. At 23:10 it was seen that blue
filter dulled the crater - this was odd because both Censorinus and
Proclus were brighter in blue, which is what he would normally expect.
At23:15 UT Censorinus was brighter in blue, then yellow then red
filters and some orange spurious colour seen to the south of
Censorinus. At 23:23UT no spurious colour seen on Proclus or
Censorinus. 23:46UT Torricelli B elongated as before, but a very faint
ray might have been seen to the south west of the rim. This report is
not in the 2006 Cameron catalog. The ALPO/BAA weight=3.
On 1994 Apr 25 at UT11:08 B. Soulsby (Australia) found a darkening on
the north floor of Copernicus crater. The ALPO/BAA weight=1.
Aristarchus 1959 Mar 24 UT 04:35-05:15 Observed by Bartlett
(Baltimore, MD, USA, 4" reflector x180, S=3, T=5) "Strong blue &
blue-viol. gl. on E.wall, EWBS, SWBS with intermittent display.
At this time he noted in his 5-in L a total disappearance of
viol. gl. & reappear. 1 min. later. Altogether, found 4 such
occurences in his records, in '54, '57, ' & '59." NASA catalog
weight=4. NASA catalog ID #716. ALPO/BAA weight=2.
On 1981 Dec 12 at UT 00:31 P. Madej (Huddersfield, UK) saw some flashes
between Plato and Mons Pico. The cameron 2006 catalog ID=160 and
weight=3. The ALPO/BAA weight=2.
Plato 1921 Nov 15? UT 20:00? Observed by Chernov (Russia, 2" refractor
x94) "Temporary increase in brightness of the light band at bottom
noted close to FM. Crater actively noted in Oct. 10." NASA catalog
weight=1 (very low). NASA catalog ID #384.
Plato 1869 Aug 23/24? UTC 23:00-01:00? Observed by Gledhill? (Halifax,
England, 9" refractor) Group I of craterlets (as designated by several
famous obs. before) exhibited notable illumination, accompanied by a
single light on a distinct spot. (if obs. similar to Ap 1870 obs. then
date =Au 23-24). NASA catalog weight=2 (low). NASA catalog ID #162.
On 1975 Dec ?? at 19:00UT P.W.Foley (Kent, UK), and possibly P. Moore?
(Selsey, UK) - unusual events were reported which might have been due
to minor structral changes. Albedo=76% (=7.6?). Cameron 1978 catalog
ID=1425 and weight=3. ALPO/BAA weight=1.
Aristarchus 1975 Dec 19 UT 22:45 Observed by Foley (Kent, England)
"Suspected anomaly in it", NASA catalog weight=1 (very low). NASA
catalog ID #1424.
In 1942 Feb 02 at UT 18:20-19:15 Y.W.I. Fisher (Brussels,
Belgium) a whitish glow near the Earthlit limb, near to
Kepler (37W, 7N). The duration of the event was 55 min.
The Cameron 1978 catalog ID=488 and weight=2. The
ALPO/BAA weight=1. Ref. p220-221 IAU Symposium
No. 14 - The Moon.
On 1975 Dec 19 at UT22:45 P.W. Foley (Kent, UK) suspected an anomaly in
Aristarchus. Cameron 1978 catalog weight=1424 and weight=1. ALPO/BAA
weight=1.
On 1986 Apr 26 at UT 21:00 etimated) H. Miles (Cornwall?, UK)
found that Aristarchus was "still brighter in moments of
better seeing". The rim could be seen as a complete circle.
The Cameron catalog ID=283 and the weight=3. The ALPO/BAA
weight=1.
Messier A 1951 Aug 20 UT 01:48-03:00 Observed by P.Moore
(England, 8.5" reflector, x350). Bright cloud like circular
patch seen on S wall of Messier A. It was the brightest object
in the vicinity. Observations ceased due to the Moon setting
behind a tree. W.Haas thinks that this effect is not unusual at
similar colongitudes. Moore checked again under similar
illumination and still considers the Aug 20 appearance abnormal.
NASA weight=4. NASA catalog ID #545. ALPO/BAA weight=2.
On 1993 Dec 31 at UT 05:00-07:40 S. Beaumont (Cambridge, UK, 12"
reflector) "saw a patch of hazy light to NW (from c.p. alpha) at 0550
craters B & J shadow of alpha had not reached E wall yet, but at 0536
it did. Alpha > at 0550. Craters B & J to SE had faded, vanished at
0630. Hazy patch remained around peak, alpha low mainly to NE like a
comet's tail. Slightly reddish fringe to E wall. (shown in sketch)".
The above has been quoted in full from the Cmeron catalog because the
catalog desription is slightly ambiguous and any attempted summary
might make the description more unreliable. The cameron 2006 catalog
ID=470 and the weight=3. The ALPO/BAA weight=2.