Sabine 1967 Sep 11 UT 00:32,00:45 Observers: Jean at al. (27 obs., 21
telescopes, Montreal, Canada, 3-6" refractors, reflectors) "A black,
rectangular-shaped cloud vis. in M.Tranquill, moving W-E (IAU ?) &
dissipated nr. term., surrounded by viol. colour. Bright yellow flash
at 00:45, (obs. in response to request to obs. impact of Surveyor V at
0046) NASA catalog weight=3. NASA catalog ID #1043. ALPO/BAA weight=2.
On 1985 Jun 14 UT 21:16-21:40 Observed by A.C. Cook Frimley, UK,
30cm reflector, seeing IV, transparency moderate, very litle
spectral dispersion noticed - Wratter 25 and 44a filters used)
UT 21:16-21:19 Censorinus slightly brighter in red and more
detail seen. Observed other features before and after this.
Checked again UT21:31-21:40 - same appearance. Torricelli and
Torricelli B in comparison looked normal with other craters of
similar size. ALPO/BAA weight=1.
On 1988 Jul 21 at UT 01:00? an Unknown observer (name and geographical
position not given in the cameron catalog) detected a darkening on the
floor of Proclus crater - this was also seen by other observers - some
of whom were making observations independently. The Cameron 2006
catalog ID=330 and the weight=1.
On 1969 Jul 20 at UT09:30 Whelan (Wellington, New Zealand, 10"
and 6" reflectors. Other observers involved were: Mackrell
(New Zealand, 6" reflector) and Spellman (4" reflector)
observed Maskelyne crater undergoing a whitish glowing
brightening. Shadowy filling of whole crater. Apollo 11 watch.
The Cameron 1978 catalog ID=1179 and the weight=3. The
ALPO/BAA weight=2.
On 1970 Apr 13 at UT09:00-09:03 Whelan (Walters, New Zealand, using a
10" reflector) observed Menelaus to have a deep red cloud that seemed
to surge upward from outside the southern edge of the crater wall and
disperse around the outside edge, spreading out on reaching Mare
Serentiatis. All clear again though by 09:03UT, (Apollo 13 watch).
Drawing supplied. Cameron 978 catalog ID=1246 and weight=3. ALPO/BAA
weight=3.
Posidonius 1969 May 23 UT 11:35-12:45 Observed by Osawa (Hyogo-ken,
Japan, 8" reflector x286) "W.(ast. ?) rim of crater was yellow in
integ. light, brownish to deep yellow in filter, with no blink.
Hue seen thruout obs. (true ground color? or seeing ? or true LTP?)
thin clouds. (Apollo 10 watch)". NASA catalog weight=3 average. NASA
catalog ID #1141.
On 1982 Jul 27 at UT 20:04 P. Madej (Newsome, Huddersfield, UK, 16cm
reflector, x33, seeing I to II, transparency fair, Hoya linear type
polarizer filter) observed that when the filter was used on Mare
Crisium, that the north part became a bright gray when turned to 45deg,
but when turned the other way it returned to normal. The ALPO/BAA
weight=3.
Piton 1960 Dec 26 ? UT 00:00? Observed by Schneller (Cleveland, OH,
USA, 8" Reflector, x53), "Red obscuration; less intense than Nov. (date
not given, but discussion suggests near SR, therefore Dec 28th most
likely date -- ancill. data given for 28th)." NASA catalog weight=3
(average). NASA catalog ID #732.
Mare Vaporum 1969 Apr 24 UT 19:34 Observed by Bentley (England,
8" reflector, x320, S=E) "NW part of mare obscured for 4 min.,
gradually thinning." NASA catalog weight=3. NASA catalog ID No.
1123. ALPO/BAA weight=2.
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.
Large plume-like diffuse cloud over central peak, very
large compared to central peak (@ approx 30km diameter)
with intensity much different from other parts. Brightness
between walls and shadowed floor. Would take 3 minutes to
collapse, so continuously fed. 13-14 days later, at SS,
central peak was normal. Kuiper took photos after Kozyrev's
observations, but saw nothing abnormal. Drawing. Haas saw
nothing in 12inch reflector at the time. Cameron 1978
catalog TLP ID=705 and weight=4. ALPO/BAA weight=2.
Alphonsus 1966 Jun 26 UT 04:30-04:40 Observed visually by
D.Harris and E.Arriola (Whittier, CA, USA, 19" reflector x146,
and spectrum, S=4, T=1-0) "Absorp. spectrum (visual) of c.p.
band at 475+/-5nm (1st est.); 2nd est. at 485+/-5nm. Band
degraded towards the viol. Band nr.Hydrogen Beta. as if
abnormally broadened. So sign of anything unusual visually in
central peak in white light. Absorption appeared only on C.P.,
not over walls. Calibration corrections put band at 491+/-4nm"
NASA catalog weight=5. NASA catalog ID #948. ALPO/BAA weight=5.
Alphonsus 1960 Jan 06 UT 18:00 Observed by Warner and Hole (London,
England, 18" refractor and 24" reflector, Moon blink used) "Red spot.
Hole saw this on several other occasions(indep. confirm)." NASA catalog
weight=5 (very good). NASA catalog ID 727.
On 1988 Jul 22 at UT 02:15-04:00 P.W. Foley (Kent, UK, 11"
reflector) made a sketch of a dark area of the (East) floor of
Proclus that revealed a large anomalous dark region - there
should be no shade here when the sun is at an altitude of above
50 deg!. BAA lunar section archives reveal similar dark shadings
- however on this night it was a different shaped dark area. The
appearance was confirmed by several observers. Foley reported
that the region affected stretched from Proclus to Theophilus.
The TLP was seen in the USA too by D, Darling as early as
01:31UT and by others on his TLP network - brightness
measurements of the "c.p." were 3.5 and the remainder of the
floor was 5.5. However the observers did not all agree on the
same position for this dark area. The Cameron 2006 catalog ID=
331 and the weight=2. The ALPO/BAA weight=2.
Herschel 2005 Aug 13 UT 00:07-00:29 Observed by Daniel del Valle
Hernandez (Aguadilla, PR, 8"SCT, x225, S=7, T=4) "Interesting
configuration of shadows with umbra and penumbra. Effect seemed to
reduce over time." An ALPO report. The ALPO/BAA report=2.
Flash seen in Ptolemaeus (A?) - possibly a meteor. Cameron 1978
catalog weight=1. Cameron 1978 catalog ID=863.
2009 Apr 13 UT 18:55-20:00 J. Adee (UK) and later A. Jarwaski (UK) saw
Mons Pico to be incredibly bright. Adee reported naked eye visibility,
though this does not show up in later CCD images. Jarwaski saw another
nearby Mt very bright as well. This has been assigned an ALPO/BAA
weight of 1, though I suspect it is just normal for Pico to get quite
bright at sunrise.
Patches of brightness seen in the area between craters Aratus and Joy.
Seemed to the observer to be perhaps slightly brighter than one would
expect - the observer thought that their observation only barely
constitured a TLP but decided to send the report in anyway. This
has been assigned an ALPO/BAA weight of 1.
On 1994 Apr 19 at UT 00:00 P. Kursewicz (Epping, NH, USA) observed a
dark patch surrounding Picard crater. The ALPO/BAA weight=1.
Plato 1918 May 20 UT 18:00? Observed by Markov (Russia) "Brightness in
shadow of the light sector & 1 spot" NASA catalog weight=3 (average).
NASA catalog ID #369. ALPO/BAA weight=2.
Proclus 1970 Jul 11 UT 20:35-20:45 Observed by Dean, Jamieson,
Sparks (Ruislip, ------, England, 6" relector x156) "Dean saw
something in Proclus, alerted Jamieson who saw nothing unusual
at 2043h, but tho't Secchi was quite bright. At 2035 Sparks saw
Proc. fluctuate. Red & blue filters showed some reduction in
brightness. E. edge showed darkening, but not as dark as in
shadows. 10 min later, returned to normal. (Sparks confirmed
Dean)." NASA catalog weight=5. NASA catalog ID #1267. ALPO/BAA
weight=3.
1970 Jul 11 UT 20:35-20:45 During a TLP alert for Proclus, Jamieson
saw nothing unusual, but found instead that Secchi was quite bright.
NASA catalog weight=5 (very good). NASA catalog ID #1267. ALPO/BAA
weight=1.
On 1982 Jul 28 at UT20:38-20:48UT A.C. Cook (Frimley, Surrey, UK, 12"
reflector, seeing IV-V, some spurious colour prsent) observed that the
central peak of Alphonsus was brighter in red light than in blue, so
much so that at the start of the session the peak could hardly be seen
in blue light. The central peak varied in brightness in red light but
not in white light. The central peak of arzachel was brighter than that
of Alphonsus in white light but had no colour - Arzachel's central peak
did however appear to fade in brightness over time (or was it Alphonsus
getting brighter?). Cameron 2006 catalog ID=177 and weight=3. The
ALPO/BAA weight=2.
Plato 1952 Apr 03 UT 20:45-21:30 Observed by Wilkins and Moore
(Meudon, France, 33" x460) whilst checking up on a 1923 28"
refractor sketch by W.H. Stevenson's, thry failed to detect a
prominent floor craterlet (featured in the 1923 sketch) just
inside the W wall. They suspected an obscuration.
Interestingly the whole floor was was reported to be lacking
in detail many hours later as observed by Cragg in the USA.
NASA catalog weight=5. NASA catalog TLP ID No. #550. ALPO/BAA
weight=2.
Apr 25 UT 20:20 Observed by Bentley (England, 8" rteflector
x320, S=VG) "Flashing star-like pts, in area beyond the
terminator, (atmosphere?)" NASA catalog weight=1. NASA catalog
ID #1124. ALPO/BAA weight=1.
Plato 1970 Apr 15 UT 05:38-05:40,05:51-05:53 Observed by Cross
(Las Cruces, NM, USA, 108mm Schiefspiegler or 152mm refractor,
S=6, T=5.5=VG). The observer noted a lack of detail inside the
crater floor, despite visibility of detail outside the crater.
Spectra were normal for color. (obs. similar to historic
reports. Apollo 13 watch?)" NASA catalog weight=1 and catalog ID
#1253. ALPO/BAA weight=2.
On 1989 Jun 12 at UT 21:18-22:25 G. North (Herstmonceaux, UK,
Coude, seeing=V) noted at 21:18UT that Torricelli B was
"barely visible"- possibly this was seeing related. M. Cook
(Frimley, UK, 8" reflector, seeing=IV) found Toricelli B to be
ëxtremely dull - impossible to judge shadows on floor in
contrast to Cens." Holmes (Rockdale, England, UK, 8"
reflector, seeing=II-III) at UT21:30 also found Toricelli B
difficult to find at magnifications less than 200x. Cameron
comments that "Dulling is common on it at high Sun but
illumination doesn't seem to be the cause or related". The
Cameron 2006 catalog ID=365 and weight=5.
The ALPO/BAA weight=2.
Alphonsus 1958 Dec 19 UT 20:00? Observed by Wilkins (Kent, UK)
described in the NASA catalog as: "Reddish patch on central
peak" 15" reflector used. NASA catalog weight=4. NASA catalof
TLP ID No. 711. ALPO/BAA weight=3.
On 1994 Apr 19 at UT 22:00 R. Knopp (Berlin, Germany) noticed a
darkening of the interior of the crater Atlas. The ALPO/BAA weight=1.
Eratosthenes 1954 May 11 UTC 20:00 Observer: Catermole (UK, 3"
refractor) "Central peak invis. tho surroundings were sharp".
NASA catalog ID #563, NASA weight=4 (high). ALPO/BAA weight=2.
Plato 1982 Nov 24 UT 22:00-23:30. K.P. MArshall (Columbia, 12"
reflector, x100, x200, x480, seeing III, reasonably steady, but
some turbulence. No craters could be seen on Plato's floor,
despite observing conditions being acceptable. The floor was
evenly toned, and the walls were sharply defined. By 23:10 there
was a suspicion that the central craterlet was there, but he
could not quite make it out, even with averted vision. ALPO/BAA
weight=1.
Alpetragius 1889 Sep 4 UTC 02:30-03:00 Observed by E.E. Barnard (Lick
Observatory, CA, USA, 36" refractor x150, x700) "Shadow of CP diffused
& pale. Entire inside of crater seemed filled with haze or smoke. Shad.
of E.wall was black & sharp. CP & floor seen thru haze. No other
craters showed this appear. (date&time rep't=Sep3, 1830L.T)." N.B. Sun
above the horizon at 02:30 - sun sets at Lick at 02:37! NASA catalog
weight=4 (good). NASA catalog ID #264. ALPO/BAA weight=3.
On 1988 Jul 23 at UT03:07 D. Darling (Sun Praire, WI, USA, 12"
reflector, x150, seeing = 6/10) discovered that the dark area on the
floor of Proclus, seen earlier by UK observers was still present, but
less so (?) and the shape changed. When viewed through a green filter
it was less distinct. "Change with two other filters. Polarizer gave a
circular shape with a knot on SE side & W58 in White." The measured
brightness of Proclus was 9 on three sides and 8.5 on its west rim. The
floor was 5.5, but the dark spot was 4. Alphonsus, Bullialdus,
Copernicus, Eratosthenes, Plato and Ptolemeaus were all normal. The
Cameron 2006 catalog ID=332 and the weight=1. The ALPO/BAA weight=1.
Tycho observed by G. North (UK) seen to have greyness
inside parts of its shadow. Confirmed by J.D. and M.C. Cook
Possibly light scattered of illuminated wall into shadow
or highland starting to break through the shadow.
ALPO/BAA weight=2.
Plato 1952 Apr 04 UT 02:45 Observer: T.A.Cragg (Mt Wilson, CA,
USA, 31cm reflector, x420, seeing fairly good, transparency
fair) - Obscur. of floor (seen a few hours after Wilkins & Moore
obs. confirm.?) " - indeed Haas in Stolling Astronomer 2002 Vol
45, p29 states that Cragg was amazed to see Plato's floor with
absolutely nothing on it! He was able to draw details elsewhere
in other features. NASA catalog weight=5. NASA TLP ID No. #551.
ALPO/BAA weight=2.
On 1994 Apr 20 at UT 01:31 D. Darling (Sun Praire, WI, USA) found that
Picard crater was surrounded by a dark nebulous patch - it was
impossible to resolve detail inside this dark zone. The ALPO/BAA
weight=1.
On 1965 Jul 08 at 01:00?UT a white streak was seen in Grimaldi,
extended towards the limb. This was observed by Rubens de
Azevedo, et. al., Brazil. The Cameron 1978 catalog ID=884 and
weight=3. ALPO/BAA weight=2.
In 1962 Sep 09 at UT 01:42-02:00 Bartlett (Baltimore, MD, USA,
5" reflector, x180, S=5-4, T=3) observed in Agrippa the shadow
of the central peak to be grayish, not much darker than the
floor, estimated at 3deg bright, whereas on 1962 Jul 12, at col
28deg, in the 5" telescope the dhadow was anormal black and
sharply defined against the floor which was 3 deg bright. The
Cameron 1978 catalog ID=768 and the weight=4. The ALPO/BAA
weight=2.
On 1986 May 18 at UT 20:45-22:25 M. Mobberley (Suffolk, UK, seeing II-
IV) found that the central craterlet of Plato was an ëasily seen "white
splodge" although it was quite difficult to see when imaged with video.
Foley and Cameron comment on IR sensitivity of the CCD camera used. The
Cameron 2006 catalog ID=285 and the weight=1. The ALPO/BAA weight=1.
On 1988 Jul 24 D. Darling (Sun Praire, WI, USA, 12" reflector,
x150, S=7/10, T=3) observed the following in Proclus: "At 0213
the previously observed gray area was 1/3 of July 22 and V
shaped and fanned out across the floor. Could see hint of knot
seen before. Craters named in 7/23/88 (#319) were all normal
this time too". Is it possible that this report refers to the
crater "Gray" rather than "Proclus" as the column field suggests
in the Cameron catalog? The Cameron 1978 catalog ID=333 and
weight=5. The ALPO/BAA catalog weight=2.
On 1981 Sep 08 at UT 21:28-21:34 P. Madej (Huddersfield, UK, seeing
III-IV and trasnaparency good) observed a light orange transparent
cloud extending from the north east inner corner across over the floor
of Plato. Camero comments that this report was confirmed by 3 othr
observers. The shape of this clud varied. The Cameron 2006 catalog ID=
153 and weight=4. The ALPO/BAA weight=3.
Dawes 1973 Feb 12-23 UT 22:30-01:20 Observed by Porter (Narragansett?,
RI, USA, 6" reflector x96, S=9, T=0-4, alt=55-75deg?) "Brightening of
some of permanent pts. monitored while others stayed steady & normal
brightness. (Other nites' obs. suggest that he saw end of dimming event
& return to normal). Distinct fluctuations." NASA catalog weight=4
(good). NASA catalog ID #1361.
Tycho 1998 Feb 06 UT 22:48-22:54 R. Braga (Corsica (MI),
Italy, 102mm f8.8 refractor, x180, with diagonal, Wratten 23A,
80A and an OR5 filter, seeing II, Transparency good). Observer
noticed that the floor darkened towards the NW (IAU),
particularly with the blue Wratten 80A filter. The ALPO/BAA
weight=1.
On 1975Mar22 at UT 21:17-21:23 Findlay and Ford (Mills Observatory,
Dundee, UK, 25cm refractor, Wratten 25 and 44a filters used) A white
spot was observed on the rim of Bulialdus that was perhaps slightly
brighter in red than in white light. The observers however decided that
they did not regard this as a TLP. This is a BAA Lunar Section
Observation. ALPO/BAA weight=1.
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.
On 1991 Feb 25 at UT 01:26-01:49 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x248, seeing=10/1, transparency=good) found
Gassendi's western rim to be bright in red and diffuse in blue
light. A sketch was provided. The Cameron 2006 catalog ID=420 and
the weight=4. The ALPO/BAA weight=2.
On 1979 Dec 29 at UT 17:45-18:20 Crick (Merchtem, Belgium, 6"
reflector, x140, seeing=III) found a violet spot in the NW inner wall.
The floor was obscured of detail on the northern half. All other
regions studied appeared normal. Observer unsure if this was a TLP or
spurious colour. Cameron 2006 catalog ID=80 and weight=3. ALPO/BAA
weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17" reflector)
and Fisher (Colfax, CA, 8" reflector, x300) observed a red glow in
Anaximander in the dark part of the Moon. The Cameron 1978 catalog ID=
784 and weight=5. The ALPO/BAA weight=3.
On 1963 Nov 27 at UT 03:00 Olivarez (New Jersey?, USA, 17"
reflector) observed a red glow in Aristarchus in the dark
part of the Moon. The Cameron 1978 catalog ID=
784 and weight=5. The ALPO/BAA weight=3.
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.
Archimedes 1973 Jun 11 UTC 21:05-21:15 observed by Pasternak (53deg
20'N, 7deg 30'E, 75mm reflector) "Faint red area at the E of Archmedes,
diminution from 21.10-21.15UT" - Hilbrecht and Kuveler, Earth, Moon &
Planets, 30 (1984), p53-61
Gassendi 1979 Dec 29 UTC 20:09-22:04 - Observer: Cook (Frimley, Surrey,
UK) "Colour seen - almost certainly spurious colour and not a TLP".
ALPO/BAA weight=1.
On 1991 May 24 at UT 20:00? Romualdo Lourencon (Sao Paulo,
Brazil, 60mm refractor, seeing=III) detected a circular cloud in
Jansen B and H? (Gazateer report says F and K). "The crater of
the event 100km diam. compared to Copernicus, dark with crescent
obscured region below it. Was S of Jansen. A circular depression
there was before LTP in darkness. Wonders if circ. depr. was
shadow of cloud? The Cameron 2006 catalog ID=428a and the
weight=3. The ALPO/BAA weight=1.
On 1988 Jul 25 at UT03:15 H. Davis (Madison, WI, USA) stated that
Proclus was normal apart from a "slightly darker area in SW (Ast) SE
(IUE) corner." The Cameron 2006 catalog ID=334 and the weight=0. The
ALPO/BAA weight=1.
Callipus and vicinity 1973 Feb 13 UT 23:16-23:50 Observed by Frank
(E.Pepperell, Massachusetts, USA, 6" reflector x100, Seeing=good,
altitude=45 deg). "Large dark patch, albedo=3 present E. of Calippus.
Drawing. (Shows it into Callippus also). Never seen before or since.
Albedo normal (4.5) at 2350h. (obs. monitors Callippus in ALPO-LTP
program)." NASA catalog weight=3 (average). NASA catalog ID #1362.
On 1975 Mar 23 at UT 20:40 P.W. Foley (Kent, UK) found a brownish
colour on the north west wall. This is a BAA Lunar Section report. The
ALPO/BAA weight=2.
Gassendi - 1966 Sep 25 UT 20:20-20:50 observed by Moore and
Moseley(Armagh, N.Ireland, 10" refracfor x140) "Reddish patches,
regarded dubious, owing to low altitude of the Moon". NASA
catalog weight=1. NASA catalog ID #981. ALPO/BAA weight=1.
Bullialdus 1979 Oct 31 UT 20:20-20:30 G.W. Amery (Reading, UK)
observed a plateau area to be dark and distinct in blue light
(Wratten 44a), but only just visibly in red (Wratten 25) and
yellow light. Observer wonders if this is natural surface
colour? ALPO/BAA weight=1.
On 1991 May 24 at UT 23:10 M.C. Cook (Frimley, UK) found the
apron region of Censorinus had a very dull white apron, but was
not diffuse. A sketch was supplied by this experienced observer.
The Cameron 2006 catalog ID=428b and the weight=3. The ALPO/BAA
weight=2.
Plato 1872 Jul 16 UTC 21:00? Observed by Pratt (England?) "NW portion
of floor was hazy" NASA catalog weight=3 (average). NASA catalog ID #
179.
Gassendi 1967 Jun 18 UT 21:10-22:30 Observed by Whippey
(Northalt, England, 6" reflector?) "Faint redness outside NE &
SE wall of crater." Moore (10" Armagh refractor, x360) was
observing too 22:10-22:40, with and without a Moon Blink but
detected no redness, however his observing conditions were not
very good at the time. NASA catalog ID #1039. NASA catalog
weight=3. ALPO.BAA weight=2.
A.S.Williams of West Brighton, UK, using a 5.25" Calver, x150 and
definition fairly good. Observer noticed that the Mare seemed covered
with a close network of innumerable streaks, and spotted with countless
numbers of light specks, so that it would hardly be possible to
delineate them all in one night. The spots and streaks together must
have numbered ~1000. The observer had never seen anything like the
number of spots and streaks. Peirce A, was not at all easy to see and
neighboring spots almost as bright made it difficult to distinguish
which one was Peirce A. ALPO/BAA weight=3.
On 1982 Aug 01 at 00:00-01:00 K. Marshall (Medellin, Columbia, 12"
reflector, seeing I-II) noted shading on the east floor of Plato that
was apparently lighter than the rest of the floor and this was seen at
both low and high magnifications. Foley notes that this was unusual.
There were three craterlets visible on the floor - the central one was
the brightest. Cameron 1978 catalog ID=178 and weight=3. 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.
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.
On 1993 Apr 03 at 23:39UT C. Adams (FL, USA, 24" reflector, x168)
noticed a "translucent orange" colour in Gassendi crater within a 35deg
sector (apex at the centre) - row of 3 central peaks extending west -
the western central peak appeared as a dome with a summit craterlet.
The Cameron 2006 catalog ID=450 and the weight=3. The ALPO/BAA
weight=3.
On 2001 Aug 30 at UT20:35-21:15 C. Brook (Plymouth, UK) found a dimming
in the central peak of Alphonsus, however it had returned to normal by
Aug 31 UT 00:29-00:50UT when A.C. Cook (Alexandria, VA, USA, 8"
reflector) examined the area, though there were some slight brightness
variations that were attributed to seeing conditions. The ALPO/BAA
weight=2.
On 1993 Apr 03 at 23:39UT D. Weier (Sun Praire, WI, USA, 7x50
binoculars) observed 2 flashes within the Proclus crater. The Cameron
2006 catalog ID=450 and the weight=3. The ALPO/BAA weight=2.
Aristarchus 1982 Nov 27 UT 20:13-01:00 J-H Robinson (Teighmouth, Devon,
UK) found that the bands of Aristarchus were clearer in red than in
blue light. North found that the sunlit part of the crater was very
bright. M. Cook described the crater as a "kaleidoscope of colour.
Foley observed UT 23:05-01:00 (Kent, UK, Antionadi III, Transparency
Moderate) - Colouration Seen - Ref: BAA Lunar Section Circular. The
Cameron 2006 catalog ID=190 and weight=5. The ALPO/BAA weight=3.
On 1963 Nov 28 at UT 05:00-06:00 Greenacre, Barr, Hall and
Dungan (Flagstaff, AZ, USA, 24" refractor) observed a deep violet
area form on the western exterior of Aristarchus, and a less deep
violet area form to the eastern edge of Aristarchus. As these
were becoming stronger, a blue-like haze formed on the sunlit
floor of Aristarchus, that obscured underlying detail. The
ALPO/BAA weight=2.
On 2017 Sep 02/03 UT 23:55-00:30 A.Anunziato (Parana,
Argentina, 105 mm Maksutov-Cassegrain, x154, seeing 6/10, some
interuption from clouds) observed a light spot SE of the
centre of the floor of the crater, which came and went in
visibility. There is a light spot here, but what was unusual
was that the visibility decreased over time.
ALPO/BAA weight=1.
Cavendish 1956 Jan 24 UTC 20:34-20:45 Observed by Houghton and Warner
(England) "Variable flashes seen from W. inner(?) wall of crater, then
a little inside the terminator. Flashes began with a bright glare at
20:34, were very bright for ~3 min, then faded. Flash rate
approximately every 1.5 sec. Other point like peaks did not flash. Also
indications were seen of reflections of flashes from E. (inner?) wall
and the crater's floor was faintly lit by a glare. Ref: Strolling
Astronomer p27, Vol 45, 2003. 17cm reflector x230. Seeing good-
excellent. NASA catalog assigns this observation a weight of 4 (good).
NASA TLP ID No. #631.
Promontory LaPlace 1977 Jan 31 UT 20:49-23:00 Observed by Foley
(England, 11.75" reflector, x360), Prout (England, 4" refractor or
reflector?), Findlay (Dundee, Scotland, 10" reflector, x180, S=VG),
Ford (Dundee, Scotland), Mooney (Dundee, Scotland) "With filters in
eyepiece, tho't he saw a possible darkening in the blue but no
variation in red. Altho. a deep shadow is normal to the W. of the cape
at this period, (then cape must have a slope > 30deg!). he wondered if
shad. was more extensive than usual? Prout noted a dark inky coma-
shaped spot. Dundee obs. concluded it was a shadow. Took photos.
Analysis of them was underway at time of rep't." NASA catalog weight=5
(very high). NASA catalog ID #1462.
Hislop of England? saw Aristarchus as nebulous at the centre, despite
the fact that elsewhere features were well defined. The Cameron 1978
catalog ID=246 and the weight=3. The ALPO/BAA weight=2.
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 1985 Jun 29 at UT 22:56 M.C. Cook (Frimley, UK, seeing poor)
observed that Torricelli B looked as bright as a mountain to its south
west - no colour was seen. Cameron comments that this was similar to
Marshall's 1985 Jul 1 observation. The cameron 2006 catalog ID=278 and
the weight=3.
On 1997 Oct 13 at UT11:09-11:21 D. Rodway (Oamaru, South Island, New
Zealand, 8.5" reflector, x270) saw a deep salmon-pink colouration in
the south east corner interior of the crater Aristarchus. This colour
was confirmed by the observers wife. By 11:21 UT the colour had faded
completely. Rodway had been a lunar observer since 1958, using a wide
range of instruments from 3 inch refractors to 12 inch reflectors and
had observed a TLP in Gassendi back in 1966 (from L'ondon, UK), and so
was an experienced observer. The ALPO/BAA weight=4.
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 1982 Aug 01 at UT20:50 M. Mobberley (Suffolk, UK, 14" reflector,
seeing III-IV) found that LaPlace A was significantly more prominent
than usual - comparisons were made with photographs in books. The
Cameron 2006 catalog ID=178 and weight=3. The ALPO/BAA weight=1.
On 1975 Mar 24 at UT19:08-19:45 P.W. Foley (Kent, UK) observed blueness
in the North East (Classical?) corner of Aristarchus. Moon blink seen -
pale in red. Most other observers clouded out. The ALPO/BAA weight=3.
Proclus 1990 Mar 09 UT 00:12-00:13 Observed by Marie Cook (Frimley, UK,
3.5" Questar telescope) observed a "long plume of light" the brightness
was the same as the wall region. It went from the southern rim about
half of the way across to the centre in the "northerly". The plume
feature was not seen at higher magnifications. Change in brightness
also noted. The Cameron 2006 catalog ID=394 and the weight=1. The
ALPO/BAA weight=1.
On 1994 Apr 23 at UT02:41 D. Fryback (Madison, WI, USA) observed a
starlike flash in Alphonsus crater. The ALPO/BAA weight=2.
Aristarchus 2014 Dec 04 UT 03:14-03:15 M.P. Homan (Grand Rapids,
MI, USA, Nikon P520 x48) 11 digital images taken. These show
possible blue colour in the Aristarchus area e.g. on the ray
between Herodotus an Aristarchus. ALPO/BAA weight=1.
On 1994 Apr 23 at UT 03:30 the US Navy Clementine Spacecraft, in orbit
around the Moon, obtained images of the Cobra Head region of
Aristarchus crater that suggested a ~15x colour ratio increase (0.4
microns / 1.0 microns) in comparison with images obtained on 1994 Mar
03. This was presented as a poster paper 18.04 at AAS 31st DPS meeting.
However it was later suggested that this was due to incorrect
radimetric calibration procedures being followed. The ALPO/BAA
weight=1.
Proclus 1975 May 24 UTC 22:00 Observed by P.W. Foley (Kent, UK)
"Brightenings(?). Seen by more than one obs. ? Foley recorded a ray
projection on photos, but not seen vis. by others." NASA catalog
weight=3? (average?). NASA catalog ID #1405.
Aristarchus 1965 Nov 06 UTC 03:20-03:50, 05:50 Observed by Bartlett
(Baltimore, MD, USA, 3" refractor x300, S=6, T=5) "Strong blue-viol.
glare on E. & NE wall; dark viol. hue in nimbus. (absent at 0320-0350.
Listed as 11/8/55 in both ref. 210 & MBMW, but should be 1965). NASA
catalog weight=4, NASA catalog ID #911.
On 1975 Mar 24 at UT22:28-22:19 P.W. Foley (Kent, UK) observed
vivid blue/green in Aristarchus. The ALPO/BAA weight=3.
Herodotus 1998 Dec 30 UT 18:50-19:10 observed by J.Knott
(Liverpool, UK 22cm Newtonian, x216, seeing II, transparency
good). Observer reports a bright spot, as bright as the
central peak in Aristarchus on the NW rim of Herodotus at
19:10 (still there at 19:15, but the curious thing was that it
was not visible earlier at 18:50? Now there is a bright
craterlet here, and the observer doubted if what he had seen
was unusual - though we have the rise in brightness o20
minutes to account for? 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)
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
On 1915 Jul 24 at UT 22:00? Barabashovihi (Russia) observed a TLP on
the west limb: "When phi Strettsa (?) approached the edge but still
separated, the star began to stretch in a belt 3X its own length & then
instantly disappeared. Probably no significant atm. or vapors. (similar
to other reports of fading occult. Gives limb as E. but that is in ast.
convention)". The 1978 Cameon catalog ID= 357 and weight=2. The
ALPO/BAA weight=1.
Schickard 1944 Aug 31 UTC 21:00? Observed by Wilkins (Kent, England)
described in the NASA catalog as: "Saw a mist in it which was gone next
nite. interor was dotted with white spots, contrasting sharply with
dark areas. All very clear on Aug 15 at sunset". 8.5" reflector. NASA
catalog weight=4 {high). NASA catalog TLP ID No. #492. ALPO/BAA
weight=3.
Aristarchus 1967 Sep 17 UTC 02:05-02:21 Observers: Delano (Fall River,
MA, USA) and Corralitos Observatory (Organ Pass, NM, USA). The former
used a 12.5" reflector at 400x and the latter a 24" reflector. The NASA
catalog states the following: "A rimtop cratelet on SW rim appeared
almost as bright as c.p. thru a Wratten 25 filter (red) but no brighter
than a lower central wall & rim thru a Wratten 48 (blue) filter. Inner
W. slope of craterlet displayed a bright red color which became less &
less noticeable until 0212h It was no longer brighter than other parts.
At 0217 it flared again brighter red for 1m. (indep. confirm. of
Seeliger for activity in Aris. ?) Corralitos MB did not confirm. NASA
catalog weight=4. NASA catalog TLP ID No. #1045.
ALPO/BAA weight=2.
Oenopides-Selecucus 1951 Aug 15 UT 13:11 T,Osawa (Japan)
observed a brownish tinge to the terminator region in the
vicinity of these two craters. ALPO/BAA weight=1,
On 1975 Mar 25 at UT18:50-20:50 P.W. Foley (Kent, UK) observed
blue/grey in Aristarchus. The ALPO/BAA weight=1.
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.
On 1975 Mar 25 at UT19:59-20:02 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1985 Jul 01 at 02:00-03:00 UT K. Marshall (Medellin, Columbia)
observed thatTorricelli B was very bright - verified using a C.E.D. No
colour was seen though. the Cameron 2006 catalog ID=279 and the weight=
4. The ALPO/BAA weight=3.
On 1980 Jan 01 at UT 00:10-00:21 A.C.Cook (Frimley, UK, 12" reflector,
Wratten 29 and 44A filters, Seeing II-III and transparency poor-
moderate) suspected that the floor was slightly brighter in blue light
than in red. No such effect was seen earlier at 23:54-23:57. Cameron
2006 catalog ID=81 and weight=3. ALPO/BAA weight=1.
Aristarchus 2015 Mar 03 UT 23:58 Brendan Shaw (UK) saw a flash
on the NW rim of Aristarchus on his computer screen - the camera
was working in the near IR. Seeing was not very good at the
time. Unfortunately this flash occurred in between imaging
sessions. No other flashes seen, despite looking. The observer
considerd the possibility that it might have been a cosmic ray
detection, but cannot say for sure. The ALPO/BAA TLP weight=1.
Colour seen between Aristarchus and Herodotus by P. Moore
and G. North. ALPO/BAA weight=3.
On 1983 Oct 19 at UT 21:09-23:40 G. North (Bexhill on Sea, UK, seeing
III) found Aristarchus crater to be slightly blue in colour, and very
bright, despite the fact that no colour was seen elsewhere on the Moon.
At 22:08UT Foley (Kent, UK, 12"reflector, seeing II) obtained an
extremely high CED brightness measurement and also picked up a "blue-
violet" cast, especially inside the west rim, furthermore he saw noe
detail in it. The Cameron 2006 catalog ID=230 and the weight=5. The
ALPO/BAA weight=3.
On 1994 Apr 24 at UT 03:50 R. Manske (Waunakee, WI, USA) found that the
Cobra Head appeared to have an obscuration on the top eastern half. The
ALPO/BAA weight=2.
In 1959 Nov (Day unknown) at UT 21:15-22:15 Bradford (South Shields,
UK, 15" reflector, x480) observed in Littrow: "Cocealed by a dusky cloud.
Appeared to be stream or smoke. No change in 1h. Following week no
trace. (SR Nov 5, SS Nov 18. Says he obs. at time of unmanned landing,
but there were none in Nov.) Similar to #722". The Cameron 1978 catalog
ID=726 and weight=2. The ALPOS/BAA weight=2.
On 1989 Jun 17 at UT 06:33-07:16 R. Manske (Sun Prairie, WI, USA, 1"
refractor) sketched a nebulous spot near to Herodotus crater that at
06:49 (when he tried some filters out) was visile through red, blue and
yellow filters, though it was slightly fainter through the red filter.
The Cameron 2006 catalog ID=366 and the weight=3. The ALPO/BAA weight=2.
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.
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.
Riccioli 1974 Jan 07 UT 16:30-17:00 Observed by McKay (South Downs,
England, 3" refractor, x135, S=IV boiling) "Bright spot and dark patch
changing in size (atmos. aberr. ?)" NASA catalog weight=1 (very low).
NASA catalog ID #1385.
1969 Aug 26 UT 22:15-23:30 Observer: Whippey (Middlesex, UK,
6" reflector x177) "Small dark spot in oval whitish patch
typoical under high sun for it." NASA catalog weight=2. NASA
catalog ID #1200. ALPO/BAA weight=1.
Plato 1969 Aug 26 UTC 22:15-23:30 Observed by Whippey "Plato's
defuse white patch in center flanked by two radial diffused
bands diverging to S. wall. Later E. band disappeared under
better seeing. NASA catalog weight=2. ALPO/BAA weight=1."
1982 Mar 08 Daniell UT 22:49-22:57 P.Madej (Hudersfield, UK) -
A colour and brightness anomaly was seen a TLP alert was put
out. Cameron 2006 catalog extension weight=165 and weight=3.
ALPO/BAA weight=2.
On 1971 Apr 09 at UT 22:30-23:05 N. Brown (Huntington, York, UK, 37cm
reflector, x252) noted that the bands in Aristarchus were noticeably
more prominent in blue light than in red. This has no entry in the 1978
Cameron catalog. It has an ALPO/BAA weight of 2.
Aristarchus 1966 Jun 03 UT 01:00-01:45 Observed by Gordon (2), Delano
(Ackerman, PR?, 5" reflector / Massachussets, 3" (x92) & 10" reflector
T=4) "Deep blue color on N. wall. S.part of crater was brownish, (not
on alert). Delano saw E.wall bright spot unusually bright, confirm, ?"
NASA catalog weight=5. NASA catalog ID #947. ALPO/BAA weight=3.
On 1983 Oct 20 at UT23:40 P. Moore (Selsey, UK) observed that
Aristarchus was brighter than normal (as measured with a CED) and much
more so that Censorinus, Menelaus, and Proclus craters (in turn).
Cameron comments that Moore is a very experienced observer. The
Cameron 2006 catalog ID=231 and the weight=4. The ALPO/BAA weight=2.
Aristarchus 1973 Jun 15 UT 06:12-06:21 Observed by Bartlett (Baltimore,
MD, USA, 3" refractor x54, x100, x300, x360, S=3, T=3) "Pinkinsh-red
glow on F., wall -- weher he usually sees the violet glare. (TLP
albedo=7?, normal=5?, nearby plain=1?). All along rim nr. crest & went
over EWBS. Wanted to compare a bright spot on Lyell with Aris. wall
brighteness. At 0612h pink glow changed to a rust-brown, fading rapidly
& gone at 0615h. First time he had ever obs. a red glow. (in 20 yrs)."
NASA catalog weight=4 (high). NASA catalog ID #1369.
Timocharis 1955 Jun 4-5 UT 23:30-00:00 Observed by Firsoff (Somerset,
England, 5" reflector x70, seeing=poor) "Bright in red filter" NASA
catalog weight=4 (high). NASA catalog ID #595.
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.
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.
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.
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
Herodotus 1968 Aug 09 UTC 02:05-03:45 Observed by Lowe (Springfield,
VA, USA) described in the NASA catalog as: "With naked eye saw a bright
spot in NW part of Moon; tho't it was Aristarchus, but 7x binoculars
showed it to be Herod. which was brighter than Aris! still apparent at
0245h, but was normal at 0345h. (at FM, must have been an extraordinary
event)". Naked eye and 7x binoculars used. The NASA catalog assigns
this a high weight of 4. The NASA catalog TLP ID No. is #1087.
Reference for observation is personal communication from the observer
to Winified Sawtell Cameron. ALPO/BAA weight=3.
Aristarchus 1974 Jan 08/09 UT i18:15-00:00 Observed by
Billington (England), Robinson (Devon, England), Amery (REading,
England), Moore (Selsey, England) "Orange & viol. hue in crater
seen by Billington. Robinson, Amery & Moore reported neg. blink
results at this time. (Prob. chrom. aberr., Moore concurs)."
NASA catalog weight=0. NASA catalog ID #1386. ALPO/BAA weight=1.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato, though the centre of the activity was offset on one side. This
is a BAA report. The ALPO/BAA weight=1.
On 1893 Sep 25 at UT 21:00? Gaboreau (Paris, France), saw a shaft
of light projecting from the Moon. Cameron 1978 catalog ID=281
and weight=0. ALPO/BAA weight=1.
Plato 1944 Sep 03 UTC 03:40 - A.W. Mount (Fort Worth, TX, USA,
Conditions good, seeing 6/10) saw a small white bright point of
light appear suddenly close to the W. wall of Plato glowed
briefly as by far the most conspicuous object in the lunar field
of view and vanished quickly after approximately 2 sec. It was
star-like in appearance and was stationary on the Moon's surface
- about magnitude 6? Angular diameter of the flash was <= 1".
Observing conditions good enough to see the central craterlet in
Plato. 20cm reflector used. Ref. DJALPO Vol 45, p28 Spring 2003.
40.5W, 45.7N 1965 Nov 09 UTC 04:59 Observed by McCord (Mt Wilson, CA,
USA, 60" reflector + spectrograph) "Line depth anomaly, low compared
with 23 other areas". NASA catalog weight=5 (very high). NASA catalog
ID #912.
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 1970 Apr 22 UT 07:00
Observed by Thomas.
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.
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.
Proclus 1938 Nov 08 UTC 20:00 Observed by Green (England? Seeing =
good) "2 bright spots in Schmidt & Wilkins' craterlets. Was struck by
whitish aspect of parts of floor -- possibly mists. S.wall concealed by
these strong white patches, as if breached ring." NASA catalog weight=3
(average). NASA catalog ID #443.
On 1975 Mar 27 at UT22:30-01:45 P.W. Foley (Wilmington, Dartford, Kent,
UK, 30cm Newtownian) observed blueness along the inner southern wall of
Plato. This is a BAA report. The ALPO/BAA weight=1.
On 1975 Mar 28 at UT22:30-23:42 P.W. Foley (Kent, UK) observed
orange/red in Aristarchus. The ALPO/BAA weight=1.
Aristarchus 1983 Oct 22 UT 22:00 G.W. Amery, (Reading, UK, Seeing
III-IV) found Aristrachus so bright that the CED was unable to
give a reading. The crater's interior was also diffuse in
appearance. The Cameron 2008 catalog ID=232 and weight=4. The
ALPO/BAA weight=3.
Aristarchus 1969 May 03 UTC 07:00? Observed by Smith, Gallivan
(Corralitos Observatory, Organ Pass, NM, 24" reflector, photos) "Bluing
around crater. Visible on monitor, but immeasurable in photos" NASA
catalog weight=5. NASA catalog ID #1125
On 1980 Sep 25 atUT 20:20-22:14 P. Moore (Selsey, UK, 15"? reflector,
seeing=III) found that Mons Pico was bright and had a reddish glow to
its south west. The Cameron 2006 catalog ID=111 and weight=0. The
ALPO/BAA weight=1.
On 1980 Sep 25 at UT20:20-22:14 P. Moore (Selsey, UK) noticed that the
central craterlet was more visible in red than in blue. There was also
a streak on the floor that was "shifted to S & W." The floor was dark
and Mons Pico was bright. Peters found Plato's floor (and central
craterlet) to be dark, and darker in blue than in red, however he was
suffereing from spurious colour at his observing site. Cameron 2006
catalog ID=111 and weight=0. ALPO/BAA weight=1.
On 1980 Sep 25 at UT 20:20-22:14 Peters (Kent,UK, x240 and x120,
seeing=III) observed Proclus to have an orange tint, however there was
a lot of spurious colour in the area. The Cameron 1978 catalog ID=111
and weight=0. The ALPO/BAA weight=1.
On 1956 Dec 19 at UT 00:00? an unknown observer apparently saw a TLP
somewhere on the Moon. Cameron gives the reference for this as an
unnamed AGU meeting. The Cameron 1978 catalog ID=659 and weight=0. The
ALPO/BAA weight=1.
2004 Aug 31 UT 22:30-22:35 C. Brook (Plymouth, UK) looked at Gassendi
and noted a slight chestnut brown colouration in the dark area on the
crater floor to the north of the central mountain leading to Gassendi
A. It lasted for about two minutes during 22-30 hrs UT to about 22-35
hrs UT (observer unable be more precise). Used 60mm OG x120. Seeing
quite steady trans good. Checked Gassendi again at 23hrs UT to 23-05.
No sign of colour. Also area mentioned earlier seemed lighter now. No
colour on Aristarchus. Plato floor dark -no sign of craterlets. Seeing
good with just slight tremor. Trans good 60mm OG x120 used. The
ALPO/BAA weight=2.
On 1977 Oct 28 UT 19:25 V.M. Chernov (Soviet Union) observed that
Copernicus was brighter than normal i.e. brighter than Kepler but less
bright than Aristarchus. In January and February 1977 both Copernicus
and Kepler were of the same brightness. The ALPO/BAA weight=1.
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.
On 1988 Jul 31 at UT 07:09-08:10 D. Darling (Sun Prairie, WI, USA,
12.5"reflector, seeing=7/10 and T=3) did not detect the dark region on
the south east floor of Proclus (the TLP from a few days earlier), but
did see 2 "linear mounds". The Cameron 2006 catalog ID=335 and the
weight=0. The ALPO/BAA weight=1.
On 2011 Jan 21 at 22:30UT N.Longshaw (UK, 4" Achromatic
refractor, x128 & x160, Seeing III, transparancy average)
suspected on the eastern edge of Geminus, on the border of the
crater filled shadow and the eastern illuminated rim, a
brownish, almost speia hue. This extended for a short distance
from the floor shadow into the illuminated rim width and spanned
from the north to the south of the crater. For a comparison,
Cleomedes was checked but nothing unusual was noticed in its
shadow. The observer notes that Elger also saw a warm brown or
sepia tone. ALPO/BAA weight=1.
On 2013 Dec 19 N. Longshaw (Oldham, UK, Seeing III, TAK FS 78
APO Refracror) observed a diffuse area east of the central
peak of Geminus, to be sepia/brownish tint. The ALPO/BAA
weight=3.
On 1959 Nov 17 at Ut 22:00 an unnamed observer saw a light in Plato.
The Cameron 1978 catalog ID=725 and weight=1. The ALPO/BAA weight=1.
On 1966 Nov 11 at UT05:55-1000 Hall and Johnson (Port Tabacoo, MD, 16"
x400, S=VG), Nordling (MD, USA), Genatt (Greenbelt, MD, USA, 6"
refractor, x50, 20" reflector x400) and Wagman (Pittsburgh, PA, 30"
refractor) observed the folloowing on Aristarchus: "Color ob c.p.
detected with Trident MB, not seen vis. at Port Tobacoo. Network
alerted & 6 responded. 4 did not see anything unusual; 2 others did &
saw red on c.p. in 6-in refr., but not in 20-in refl. at 400x; other
saw indistinctness. Port Taboacoo obs. took 5 rolls of film in blue &
red & neutral. Phenom. not detectable on them, but focus poor. Blue
images had most detail, whereas would expect red or neutral to. Phenom.
still present at dawn in Moon Blink device". The Cameron 1978 catalog
ID=914 and weight=5. The ALPO/BAA weight=5.
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.
On 1992 May 20 at UT 11:15 D. Weier (Sun Prairie, WI, USA,
naked eye and 7x50 binouculars, sky conditions excellent)
noted that Aristarchus and, an area, were very bright to the
eye. In binoculars the feature was quite sharp and distinct,
"> anything else on the Moon". When observing please try using
your eyes alone and then a small aperture and low
magnification. The Cameron 2006 catalog ID=447
and the weight=2. The ALPO/BAA weight=1.
Proclus 2001 Nov 04 UTC 07:00-07:43 "Robin Gray of Winneucca, Nevada,
U.S.A. reported a contrast effect and brightening in the crater
Proclus. Using a 15.2 cm refractor he conducted a Moon blink search
with Wratten 25a and 38a blue filters. His report goes as follows:
Moon Blink carried out. In Red 25 Proclus looked nearly the
same as in white light. Through the Blue 38a filter, however, only the
brilliant lit south east wall was clearly visible. The northeast wall
was very dim with this filter. With no filters the NE and SE wall were
brilliantly lit, the SE wall was almost as bright as Aristarchus. A
thread like strip along the NW wall, possibly the rim of the crater,
was also brilliantly illuminated. The interior of the crater was a
featureless stygian black with the exception of a brilliant (intensity
9) thread of light that ran parallel to the illuminated east wall.
Whether this was an L.T.P. or an optical effect of atmospheric
turbulence is unknown, did not see anything similar elsewhere along the
terminator though" ALPO/BAA weight=3.
On 1980 Aug 29 at UT07:32 D. Loudernack (South Bend, WA, USA, 8"
reflector, x140) found the south wall to have a broad dark band (only
visible in red light) at its base that covered nearly all of the
southern half of the crater. The brightness reading was 8.4 (in blue
light) and 4 (in red light). Cameron 2006 catalog ID=107 and weight=3.
ALPO/BAA weight=3.
On 1958 Nov 01 at UT 00:00 a TLP was seen on the Moon (location and
observer not given). The Reference for this is Palm, 1967. The Cameron
1978 catalog ID=702 and weight=0. 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
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.
On 1980 Aug 31 at UT 08:00? D. Louderback (South bend, WA,
USA, 8" refletor x140) found the north wall to be very bright
in red light (this is not normal as it is usually bright in
blue - according to Cameron). The brightness was 9.7 (red) and
9 (blue no filter)compared to Eimmart's 8.7. Louderback
thought that they observed an orange-yellow tinge. Cameron
2006 catalog ID=108 and weight=3. ALPO/BAA weoght=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.
Aristarchus 1965 Nov 15 UTC 05:55-10:00 Observed by Hall, Johnson,
Nordling (Pt. Tobacco, MD, USA, 16" reflector x400), Genatt (Greenbelt,
MD, USA, 6" refractor, x50 & 20" reflector x400), Wagmann (Pittsburgh,
PA, 30" refractor). "Color on c.p. detected with Trident MB, not seen
vis. at Port Tobacco. Network alerted & 6 responded. 4 did not see
anything unusual; 2 others did & saw red on c.p. in 6-in refr.. but not
in 20-in refl. at 400x; other saw indistinctness. Port Tobacco obs.
took 5 rolls of film in blue & red & neutral. Phenom. not detectable on
them, but focus was poor. Blue image had most detail, whereas would
expect red or neutral to. Phenom. still present at dawn in Moon Blink
device." NASA catalog weight=5. NASA catalog ID #914.
ALPO/BAA weight=4.
On 1982 Aug 11 at UT03:30-04:15 Mobberley (Suffolk, UK) obtained a
photograph and made a sketch that revealed a needle-like shadow from
the west wall to near by the central craterlet - the latter was quite
clearly visible. What were not visible were the other four craterlets.
The Cameron 2006 catalog ID=183 and weight=4. The ALPO/BAA weight=2.
Alphonsus 1958 Nov 03 UT 02:30-03:30 Observed by Kozyrev,
Ezerski (Pulkova Observatory, Crimea, Ukraine, 50" reflector,
23A/mm spectrograph) UT03:00-03:30 "C.p. redder than rest;
emiss. spect. in 4756A, 4100, 3950A (C3), 5165, 5130A (Swann
bands) 3 spect. over 3.5 h. Image of c.p. weakened in viol.
light on spect. Noted visual decrease in brightness & reddish
glow. Decrease in bright, & unnusual white color(at 0300h-
0330h). Sudden decrease in vis. bright. Spect. started --
gave norm. Spect. (0330-0340h), conditions almost identical to
Alter's on Oct. 26, 1956. Nothing seen on Nov. 2-3" NASA catalog
weight=5. NASA catalog ID #703. ALPO/BAA weight=5.
On 1882 Apr 11 at UT 21:00 Williams (England, 6.5" reflector) observed
Plato at sunset (date Cameron gives is calculated from #229) and saw a
curious phosphorescent glimmer in the crater where he had seen a
luminous milky appearance before. at sunrise. The cameron 1978 catalog
ID=230 and weight=3. The ALPO/BAA weight=3.
On 1981 Nov 23 at UT 10:31 B. Hobdell (St Petersberg, FL, USA, 3?"
refractor, seeing=1) observed 3 star-like very bright yellow flashes
(approximately 20 sec apart) on the east of Taruntius or on a ridge
near this. No additional flashes were seen. The Cameron 2006 catalog
ID=159 and weight=1. The ALPO/BAA weight=1.
On 1992 Jun 04 at 01:28UT whilst driving home K.Jenks (NASA JSC)
observed with the naked eye a bright flash near to and slighly
south east of the middle of the Moon. ALPO/BAA weight=1.
Bright point on dark part. Cameron 1978
catalog ID=38 and weight=5. ALPO/BAA catalog
weight=4.
On 1978 Mar 13 at 17:25UT V.M. Chernov (Soviet Union) observed that the
northern cusp was elongated into Earthshine, 4.6 days after New Moon.
One day before this the cusps appeared nromal to him. The ALPO/BAA
weight=1.
On 1968 May 02 at UT 01:20-02:14 Doughty (Red Bank, New Jersey, USA,
8" reflector, x120) observed a bright area in Aristarchus, surrounded
by a faint glow. May have been atmospheric dispersion. Glow fainter at
01:56UT and imperceptible at 02:14UT. Kelsey and Ricker consider the
observation abnormal. The Cameron 1978 catalog ID=1070 and weight=3.
The ALPO/BAA weight=2.
1951 Apr 11 UT 02:39:30+/-15s L.T.Johnson (USA) observed a mag 7
flash S ofGrimaldi. ALPO/BAA weight=1.
On 2012 May 25 UT 05:35 Brenner F crater was recorded in a larger
area image by M. Collins (Palmerstone North, New Zealand, ETX-90
with LPI imager (monochrome mode) - seeing not good). He took a
sequence of 108 images from 05:35-05:40UT, and in the 65th frame,
a light spot, approximately 4 pixels wide can be seen just
outside the western illuminated rim of Brenner F. It is not
visible in any other frames. The exposure time was 0.125 Sec.
Because the western edge of the spot is very sharp, and the rest
of the Moon is slightly blurred due to seeing, it is thought that
this was most likely a cosmic ray event in the CCD camera - the 4
pixel width was perhaps contributed to by the image compression.
It could also be some bright surface spot that was made invisible
most of the time by poor seeing, and then during a brief period
the atmosphere is sharp enough at that locality to make it
visible. ALPO/BAA weight=1.
In 1933 Mar 30 at UT 20:00 Douillet (France?) observed in the
Aristarchus region: "White. (in the dark part)". The Cameron 1978
catalog ID=404 and the weight=2. The ALPO/BAA weight=1.
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 1992 Dec 29 at UT 17:42-17:54 A. Dollfus (Meudon, France, 1m
aperture telescope used) detected evidence for a dust cloud using CCD
polarimetry. The ALPO/BAA weight=5.
On 1975 Dec 08 at UT18:00-20:40 P.W. Foley (Wilmington, Kent,
UK, 12" reflector, x60-x624, seeing II, slight mist) found
Aristarchus to be less well visible than features such as:
Grimaldi, Reiner, Darwin/Byrgius, Kepler, Plato and Sinus
Iridum. Earthshine was exceptionally good tonight and was
orange/red in colour. Photographs were taken and these confirmed
the apparent dullness of Aristarchus. ALPO/BAA weight=2.
On 1891 Nov 07 at UT=19:00 d'Adjuda of Lisbon, Portugal (seeing fair)
whilst observing Aristarchus noticed that the crater appeared as very
distinct luminous point in the dark. Cameron 1978 catalog ID=275 and
weight=3. ALPO/BAA weight=1.
On 1992 Dec 30 at UT 17:36 A. Dollfus (Meudon, France, 1m aperture
telescope used) detected evidence for a dust cloud using CCD
polarimetry. The ALPO/BAA weight=5.
On 25 Jun 1993 at UT 23:30-23:52 Carlos Colesanti (Mairinque,
Brazil) obtained two CCD images of Julius Caesar crater and
noticed a brilliant fuzzy area on the rim of the crater. This
appeared in both images and resembled a fuzzy white blob. Note
that this is a REA-Brazil observation. ALPO/BAA weight=1.
Cameron (2006) ID=463.
SE of Ross D 1967 Oct 10 UT 02:25-03:10 Observers: Harris
(Tucson, AZ?) Corralitos Obs (Organ Pass, NM, USA, 24" reflector)
"Bright area moved 80km/hr towards SSE & expanded as contrast
reduced. Corralitos MB did not confirm" NASA catalog weight=3
(average). NASA catalog ID #1049. Reports in ALPO/BAA archive
mention observations from Edmund Arriola & Robert Moody, Jr.
02:40-03:10 (19" Whittier College, x170 & x400, T=4, S=2-3) &
Cross 02:25-02:38 (12" f/66 Cass, x400, T=6, S=1.5 to 1") - the
latter although seeing low visual activity, apparently according
to Harris, took some yellow light photos that showed high
activity? ALPO/BAA weight=2.
Messier 1968 May 05 UT 01:35-03:35 Observed by Delano (USA).
No oclour noticed with Moon blink device, but Messier A's W.
wall did brighten slightly over the 2 hours of observations
compared to Messier's W wall. The ffect was less marked in
the 2nd hour. ALPO/BAA weight=1.
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.
Plato 1886 Sep 06 UT 19:00? Observed by Valderama (Italy?) "Streak of
light on dark floor of crater in shadow. (sunlight between peaks on
walls?)" NASA catalog weight=0 (most unlikely to be a TLP). NASA
catalog ID #251. ALPO/BAA catalog weight=1.
Plato 1887 Feb 01 UT 18:00 Observed by Elger (England) "Ill-defined
shadow of peaks of W.border-in contrast to sharpness of mts. outside
it. Never seen before. Such phenomena occur on floor, but never on
ramparts. (Drawing)." NASA catalog weight=4 (high). NASA catalog
ID #254. ALPO/BAA catalog weight=1.
In 1824 Jul 04 at UT23:00? Emmett (England, UK) observed a star-like
light on the rim (in the dark). The Cameron 1978 catalog ID=100 and the
weight=3. The ALPO/BAA weight=2.
Plato 1916 Jul 8 UT 19:00? Observed by Markov (Russia) "Light on the
shadow of the bands at the bottom (similar to #362)" NASA catalog
weight=3 (average). NASA catalog ID #364. ALPO/BAA weight=2.
Alphonsus 1990 Feb 03 UT 18:00-18:23 Observed by A.C. Cook
(Frimley, UK, CCD video camera, seeing III-IV). At 18:06 W and
SE dark floor patches, equally dark, but at 18:10 and 18:23 the
W dark patch was the darker of the two?. Between 18:06 and 18:23
and a bright patch to the north of the central peak brightned
slightly wrt the its surroundings. However seeing conditions
worsened as the observing session progressed, and in view of
this the ALPO/BAA weight=1.
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.
On 1972 Feb 23 at UT0010-0035 Fornarucci (Garfield, NJ, USA, 6"
reflector, x250, seeing=fair and transparency=3.5). Shading
usually visible west of it was not seen. Cameon comments that
the albedo must have been at 5, where normally it is 4.5 and the
nearby plain is 5). Cameron 1978 catalog ID=1322 and weight=2.
ALPO/BAA weight=2.