On 2012 Mar 28 at UT 20:45-20:50 Two unknown Italian
observers, reported on an on-line formum that they had
independently seen a distinct glow with a comma/drop shape.
One of them moved the Moon and the glow moved with the Moon.
It is uncertain how experienced the observers where. A chart
was provided which shows the lcoation of the glow in the
western side of Mare Imbrium. It is just possible that this
was Aristarchus in Earthshine, though that is very slightly
further west and south than the observers reported. ALPO/BAA
weight=1.
On 2012 Mar 28 P. Grego (Cornwall, UK, seeing II, 100mm
refractor, x132) observed a patch of light just inside the NW
rim of Menelaus on the shadowed wall or floor. Computer
visulaiztions of the illumination conditions using a digital
elevation model failed to produce this effect. ALPO/BAA weight=3.
Pitiscus 1981 Sep 05 UT ??:?? but assumed to be AM? which would make
it 00:00-03:00UTC. Observed by Slayton (Fort Lauderdale, Florida, USA,
8" reflector, ASA 64EK7 f/170, Kodak Kodachrome) photographed a bright
glow in the crater that appeared to move. Observer also reported seeing
it visually noting that it looked gray with a tinge of red. For further
information see p266 of Sky & Telescope (1991, March). Note that
Cameron gives the date and UT at 1981 Sep 06 UT 01:00-01:30, or one day
later. I will use this date and time from now on. The Cameron 2006
catalog ID=152 and weight=5. The ALPO/BAA weight=3.
In 1982 Sep 24 at 22:45-23:40 K. Marshall (Medellin, Columbia) saw in
Theophilus an obscuration on the south west wall close to Cyrillus and
furthermore it had a red / mauve colouration (seen best in a 12mm Ortho
eyepiece). Through a Wratten 15 yellow filter the region was quite
bright. At23:40UT the obscuration faded. There was plenty of detail in
the region between Theophilus and Cyrils. The Cameron 2006 catalog ID=
184 and the weight=3. The ALPO/BAA weight=3.
On 1915 Apr 21 at UT 1800? Houdard (France) noticed a special
occurrence south of Posidonius which he took as evidence of water
vapor. The Cameron 1978 catalog ID=351 and weight=3. The ALPO/BAA
weight=2.
SW of Pico 1844 Apr 25 UT 20:00? Observed by Schmidt (Athens,
Greece, ? refractor) "A bluish glimmering patch of light not
quite within the dark side" NASA catalog weight=4. NASA
catalog ID #123. ALPO/BAA weight=3.
Alphonsus 1967 Aug 13 UT 18:40-18:55 Observed by Horowitz (Haifa,
Israel, 8" reflector?) "Glow or hazy patch seen while using filters.
Brighter than background. Not seen after 2055 or next nite" NASA
catalog weight=3 (average). NASA catalog ID #1041.
Purbach 1970 Apr 14 UT 12:00-14:00 Observed by Osawa (Awajt-Shima,
Japan, 8" reflector, x288) "Photos in blue and orange taken. Ill-
defined obscur. in blue photo in S. part of crater compared with
orange. (neg. is so faint it is doubtful. Apollo 13 watch. Similar to
Alter's findings in Alphonsus)." NASA catalog weight=2 (low). NASA
catalog ID #1250.
On 1972 Apr 21 at UT19:01 Mattingly (Apollo 16 commander, in orbit
around the Moon, using his naked eyes) saw a bright flash from below
his horizon on the lunar farside (approximate longitude=180 deg). he
was dark adapted at the time. However no sesimic event was recorded and
so Cameron suspects that this was not a meteor impact but a cosmic ray
striking his eye. The Cameron 1978 catalog ID=1331 and weight=3. The
ALPO/BAA weight=3.
On 1990 May 03 at UT 02:03 D. Darling (Sun Praire, WI, USA, seeing
steady) observed a point of light inside Alphonsus just to the north
of the central peak, along the "center ridge". It was seen again, half
way between the central peak and the noth west rim - along the ridge.
All other features were normal. The Cameron 2006 catalog ID=403 and the
weight=3. The ALPO/BAA weight=3.
Peirce A (Swift=IAU name) 1937 Mar? 23? UTC 22:00 Observed by Wilkins
(England, UK, 12.5" reflector) "Obscuration on floor if crater. Crater
invis. (similar to #394, 396)." NASA catalog weight=4 (high). NASA
catalog ID #412. Note this is almost certainly supposed
to be 1934 Dec 23!
SE of Ross D 1964 Aug 16 UT 04:18-05:20 Observed by Harris and
Cross (Whittler, CA, USA, 19" reflector?) "Bright area.
Condensations varying with time" NASA catalog weight=3. NASA
catalog ID #840. ALPO/BAA weight=3
On 1887 Nov 23 at 16:15-17:00 UT Von Speissen & others of Berlin,
Germany, using a 3.5" refractor (x180), saw a "Triangular patch of
light (time in Middlehurst catalog wrong? Moonrise was at > 18:30h. If
year =1887, age=8.8 days & time OK. must be same observation as ID=256
in Cameron 1978 catalog - note similarity of names and also the
reference date). Cameron 1978 catalog ID=258 and weight=1.
A track of reddish light, like a beam, was seen
crossing the shadowed floor of Plato.This TLP has an ID
No. of 17 in Cameron's 1978 catalog and a weight
of 3. It has an ALPO/BAA weight of 2.
Proclus 1984 Jul 06 UT 20:29-20:43 light green spot observed by Madej
(England) in the central region. No colour seen elsewhere. At 20:10
Foley (Kent, UK, 12" reflector) had seen a small extending of darkening
in the south east floor (not present 2 hours before) and a lot of fine
detail - though everything was normal again by 22:50UT. At 22:15 Amery
(Reading, UK) found a large dark spot on the south east floor. Other
observers: J and A.cook (Frimley, England) could not confirm but their
seeing was IV and tranparency was poor" Mobberley found no colour and
also no detail on the floor. BAA Lunar Section Report. Cameron 2006
catalog ID=248 and weight=3. ALPO/BAA weight=3.
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.
Linne 1867 Jan 14 UT 20:00 Observed by Knott (England?) "White covering
had seemingly disappeared, was a dark spot. Definition (seeing?) was
poor." NASA catalog weight=1 very low. NASA catalog ID #148.
Morales of France?, observed "an illumination" in Kepler on 1884 Feb 05
at UT20:00?. The Cameron 1978 catalog ID is 241 and the weight=1. The
ALPO/BAA weight=1.
On 1972 Apr 22 at UT 17:30-18:15 Iwanoff (60mm refractor, 1000mm focal
length,transparency 3 out of 5 and seeing 3 out of 5, located at 53deg
5' N and 8deg 45'E) At Censorinus a diffuse bright area, greater than
the crater itself, yellow to white in colour. Published in Hilbrecht
and Kuveler, Moon and Planets, 30 (1984) p53-61. ALPO/BAA weight=1.
On 1972 Apr 22 at UT 18:58-00:28 Hopp (75mm refractor, 1200mm focal
length,transparency 4 out of 5 and seeing 4 out of 5, located at 52deg
30' N and 13deg 15'E) Censorinus brighter than normal relative to
Proclus. Published in Hilbrecht and Kuveler, Moon and Planets, 30
(1984) p53-61. ALPO/BAA weight=1.
On 1974 Mar 02 at UT 23:00 Fitton (Lancashire, UK, 8.5" reflector,
x200, seeing = excellent and transparency = excellent) observed "A fine
deep red line seen at 1st contact with B-ring of Saturn. Nothing
unusual at A-ring contact. Persisted during occult. of B-ring. It
divided into 2 components & space between B-ring & globe cutting ring
into 2 disjointed ends persisted till dark limb passed onto globe of
Saturn, then a short red line corresponding exactly to chord of planet
disk defined by lunar limb. It increased in length as occult.
progressed. It suddenly vanished after 3/4 of globe had been occulted.
No afterglow at spot on limb, no irreg. at limb could be seen. Obs.
eliminates Saturn, telescope, & atmosp. as possible cause. Suggests
refraction from tenuous atm. of destructive interference of reflected
light from very small angle at limb, or diffraction of Saturn light
grazing limb". The Cameron 1978 catalog ID=1389 and weight=1. The
ALPO/BAA weight=1.
On 1960 Feb 06 at UT14:30 Morozov (Moscow, Russia) saw with the naked
eye a bright point inmovable but with brightness variations in dark
part of Moon, 3days past first quarter, 2days before SR! (says
Cameron). Cameron 1978 catalog ID=728 and weight=3.
Clavius 1915 Apr 23 UTC 20:00 Observed by Cook (England?) "Narrow
straight beam of light from crater A to B" NASA catalog weight=1 (very
poor). NASA catalog ID #352. 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.
On 1997 Dec 09 at UT 18:42-19:02 P. Salimbeni(Cugliate Fabiasco,
Italy, 20cm reflector) observed colour on the northern edge of the
crater - 23A filter used. This is a UAI reported observation and has
come from this organizations web ste. The ALPO/BAA weight=3.
On 1975 Mar 22 at UT22:10-22:25 T.Flynn (Edinburgh, UK, 30cm
Newtownian, x75) observed 3 large areas on the floor of Plato to be
delicately darker in the blue filter. There were of different darkness.
He did not regard these as TLP, but permanent blinks. This is a BAA
report. The ALPO/BAA weight=1.
On 1991 May 24 at UT 00:05-00:08 UT 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 1984 Jul 08 at UT 20:10-22:05 P. Moore (Selsey, UK, seeing IV-V)
suspected that the floor of Proclus was slightly darker than normal.
The Cameron 2006 catalog ID=249 and the weight=1. The ALPO/BAA
weight=1.
On 1882 Jan 29 at UT 17:00-17:30 an unknown observer noted an unusual
shadow in Eudoxus crater. The Cameron 1978 catalog ID=227 and the
weight=2. Reference: Sirius Vol 15, 167, 1882. 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.
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.
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.
SE limb of Moon 2003 Aug 08 UTC 20:50 Observer Brook (Plymouth, UK)
x70 60mm OG on a very hot evening, when I saw a fountain-like
appearance suddenly "squirt" from the SE limb. Seeing not particularly
good, but not so poor as to account for what was seen. Duration of
phenomenom perhaps a fraction of a second, hight of pehaps a few miles.
Thought I saw another one a few minutes later. - observer suspected hot
weather and Moon's low altitude" The ALPO/BAA weight=1.
2004 Jul 28 UT 07:25-07:31 R. Dewitt (Transparancy very poor due
to forest fire pollution - Moon looks red, USA, location: Mill
Creek, WA) observed several pin point-like orange flashes of
light occur (2-5 sec duration each and static wrt the Moon's
surface) across the bright illuminated side of the Moon with the
naked eye. Other much fainter, almost instantaneous sparkles
were seen. The brightest flash seen was of 5 sec duration.
Switching to binoculars (15x45, another fainter one was seen
too. Binouculars were handed to wife, who also confirmed similar
flashes. 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.
Plato 1966 Sep 25 UT 23:12-23:35 Observed by Moseley (Armagh, Nortern
Ireland, 10" refractor, x140) "Eng. moon blink sys. blinks inside the
crater. Very dubious due to low alt. of moon." NASA catalog weight=1
(very low). NASA catalog ID #982.
Gassendi 1967 Jun 18 UT 22:50-23:59 Observed by Whippey
(Northalt, England, 6" reflector?) "Faint redness outside NE &
SE wall of crater." Moore (10" Armagh refractor, x360) was
observing earlier 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.
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.
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.
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 1972 Apr 25 UTC 19:15-19:20 Observer Ventzke (located at
48.67N, 12.00E) - diffuse brightening on inner N. wall, reddish. 60mm
refractor used. Ref. p53-61 of Hilrecht & Kuveler Moon & Planets vol
30, 1984.
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.
Two small conical mountains, near last 4th May eruption,
close to the third one that he had seen before, but not
these two. They were not on any map.
Grimaldi 1839 Jun 24 UT 22:00? Observed by Gruithuisen (Munich,
Germany) "Smokey, grey mist". NASA catalog weight=4 (high). NASA
catalog ID #117. 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.
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.
Aristarchus 1963 Oct 30 UTC 22:00? Scarfe (Cambridge, UK)
observed a 30% enhancement at 540nm in the spectra of
Aristarchus. The Cameron 1978 catalog ID No. is 778 and weight
is 5. The ALPO/BAA weight=1 because Oct 30 is not mentioned in
Cameron's refernce.
In 1963 Oct 30 UT 22:00? Scarfe (Cambridge, UK) observed a
30% enhancement at 540nm in the spectra of Copernicus. The
Cameron 1978 catalog ID No. is 778 and weight is 5. The
ALPO/BAA weight=1 because Oct 30 is not mentioned in the ref
that Cameron give's to Scarfe's paper.
On 1789 Jan 10 at UT 00:00 Seyffer (Germany) observed "a lunar
volcano". Cameron comments that this must have been bright as it was
near full Moon. The Cameron 1978 catalog ID=56 and weight=4. The
ALPO/BAA weight=2.
On 1981 Nov 10 at UT 07:54-08:22 D. Louderback (South Bend, WA, USA,
3" refractor and filters, seeing=2-3 and transparency=5) observed a
blue light at the Cobra's Head, near Aristarchus, that fell back down
to a normal brightness of 7. although the west wall (his point D) went
down to 6.5 (this was 8 back on Oct 5). The Cameron 2006 catalog ID=158
and the weight=3. The ALPO/BAA weight=2.
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.
On 1977 Dec 24 at UT 19:30-23:20 P.Foley (Kent, UK, 12" reflector).
CED Brightness changes were noted in the central peak and the west
wall. The following features remained relatively steady in comparison:
Proclus, Mon Pico north peak, Mons Piton and Censorinus. Cameron 2006
catalog ID=19 and weight=4. ALPO/BAA weight=3.
Aristarchus 1966 Aug 01 UT 00:50-01:20 Observers: Moore,
Moseley, Corvan (N.Ireland, 10" refractor) - "Eng. moon blink
detected color (red?) on SW wall. Tel. link got other vis.
confirm, & also another moon blink."NASA catalog ID=#960,
weight=5. ALPO/BAA weight=4.
Aristarchus 1965 Sep 10 UT 04:08-04:38 Observed by Bartlett (Baltimore,
MD, USA, 5" reflector x130, x180, S=4, T=3) "S.region of floor
granulated, 7 deg bright, very faint brownish tinge; rest of crater 8
deg bright white (confirm. of Presson?)." NASA catalog weight=4 (high).
NASA catalog ID #892.
On 1976 Feb 14 at UT23:35-0053 LeCroy (Springfield, VA, USA, 4.5"
reflector, x75, S=6 and T=4.5). A blue haze was seen on the east side
of Aristarchus and red haze on the west side. At 00:00UT details were
more clear and at 00:24UT Aristarchus and Herodotus, were seperated. At
00:34UT colours were gone. At 00:35UT blue was on Aristarchus and the
area was bright, but was black in a red filter. At 00:53UT the features
were clear and the colour gone and the brightness had decreased to 9.
Cameron comments that the colour was not due to temp. inversion because
of being dark in the red filter, implying a medium). The Cameron 1978
catalog TLP ID is 1428 and the weight=1. This is an ALPO report. The
ALPO/BAA weight=1.
On 1898 Apr 06 atUT 23:00 Pickering (Cambridge, Mass, USA, 15"
refractor?) observed in Schroter's valley and it's vicinity "Variations
in vapor col. Crater E now most conspicuous instead of C which is now
least conspic., but not covered with vapor. (in drawing 2 gaps show,
time est. fr. given ol. ". The cameron 1978 catalog ID=298 and weight=
3. The ALPO/BAA weight=2.
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.
On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector)
observed something unusual in Aristarchus/Copernicus/Kepler -
the Cameron catalog is not very clear which. The Cameron 1978
catalog ID=779 and weight=5. ALPO/BAA weight=1.
On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du
Midi, France, 24" reflector) observed in Kepler an
enhancement in red light at 672.5nm and 545.0nm. Luminescence
~86% +/-3% of background. According to the Cameron catalog,
Moore(12" reflector, UK) noted something unsual between 22:30
and 03:00 but this might apply to Kepler, Coperncius, and/or
Aristarchus and that was seen 23:30-03:00? - the catalog is not
very clear. The Cameron 1978 catalog ID=779 and weight=5. The
ALPO/BAA weight=4.
On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector)
observed something unusual in Aristarchus/Copernicus/Kepler -
the Cameron catalog is not very clear which. The Cameron 1978
catalog ID=779 and weight=5. ALPO/BAA weight=1.
On 1963 Nov 02 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral
line dpeth anomaly? The cameron 1978 catalog ID=780 and weight=5. The
ALPO/BAA weight=4.
On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du
Midi, France, 24" reflector) observed in Kepler an
enhancement in red light at 672.5nm and 545.0nm. Luminescence
~86% +/-3% of background. The Cameron catalog says that Moore
saw something between 23:30 and 03:00, but it is not clear
what exactly, or whether it was Copernicus, Kepler, or
Aristarchus? The Cameron 1978 catalog ID=779 and weight=5.
The ALPO/BAA weight=5.
On 1980 Sep 24 at UT 21:13-23:50 P.Moore (Selsey, UK) at 22:45 saw loss
of detail in the north west wall, especially in red light, but also
slightly in blue light too. By 22:48 there was activity on the crater
floor i.e. the four bright spots were visible in white light but not in
red. In blue the central spot was seen and there were dark radial
streaks to the south wall and south east. At 22:50 there was a loss of
detail. Other craters were normal. At 23:08 the floor was dark in red,
but some details were visible in blue. the effect had finished by
23:35. At21:34 J-H Robinson found Plato to be normal and no blinks,
though floor clearer in red than in blue, however the floor detail had
gone by 21:57. Blair suspected a dusty patch in north of Plato,
especially in red light. at 21:57 and it started spreading at 21:13,
then east at 21:15 and then north. Though it faded at 21:25 but was
back again at 21:35, and Moon blink colour filters still gave a
reaction at 21:50 - the TLP remained strong until 23:50UT. The Cameron
2006 catalog ID=110 and weight=5. The ALPO/BAA weight=4.
On 1980 Sep 24 at UT21:34 J-J. Robinson (Teighmouth, Devon, UK, 10"
reflector, x200, seeing=III) found, using a Moon Blink device, that
Fracastorius blinked on the northern side in the red filter. Cameron
2006 catalog ID=110 and weight=5. ALPO/BAA weight=3.
On 1993 Mar 08 at UT 22:30 R. Titford (England, UK, 8.5" reflector,
seeing=III) found a very bright white area on the northern wall, "floor
< Mare Imbrium". The Cameron 2006 catalog ID=456 and weight=3. The
ALPO/BAA weight=2.
On 1938 Jan 17 Barker (Chestnut, England, UK, 12.5" reflector)
noticed that Plato crater had a brownish-gold veined surface,
colour irregular - laid on a smooth floor. It had extended
further E than on the previous night. The ALPO/BAA weight=2.
Aristarchus 1978 Nov 15 UTC 19:10-22:15 Observed by Foley (UK) -
Colouration seen - violet spot on north west interior. There was no
colour on the crater floor from 19:10-20:05, but suddenly the floor
colour changed to a slate blue-grey colour from 20:05-21:45UT. Colour
was not detected elsewhere. CED brightness measurements taken - these
were normal for Proclus, Mons Pico, Mons Piton and Tycho, but for
showed that Aristarchus varied in brightness. Crater Extinction Device
(CED) used. Seeing Antoniadi III, Transparancy Fair.
On 1989 Jun 20 UT 0628-06:58 R. Manske (Sun Praire, WI, USA, 1"
refractor) discovered blue on the north west inner wall and red on the
south east outer wall. At 05:39 he could see the blue but not the red.
No colour was detected on Tycho, but he thought that he could detect a
pinkish colouration over the whole Moon. The Cameron 2006 catalog ID=
367 and the weight=1. The ALPO/BAA weight=1.
On 1898 Apr 07 at UT 22:30 Pickering (Cambridge, Mass, USA, 15"
refractor?) observed in Schroter's valley and it's vicinity "Variations
in vapor col. Lge. gap in main column near edge of C. Gap not
previously seen, but fine lines crossing it had. E is still most
conspic. (time est. fr. col. given)". The Cameron 1978 catalog ID=298
and weight=3. The ALPO/BAA weight=2.
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
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.
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.
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.
East of Picard (56E, 15N) 1877 May 29 UT 00:30 Observed by an unknown
observer (in England?) "Bright spot. (nr. sunset, should normally be
faint? as in Kuiper atlas where it is invisible.)" NASA catalog weight=
3. NASA catalog ID #191.
Plato 1965 Sep 12 UT 05:00 Observed by McCord (Mt Wilson
Observatort, CA, USA, 60" reflector+spectrometer) "line depth
ratios in spectra a/b (H), c/d (K) were abnormally high compared
with 23 other areas, but not quite as pronounced as other areas
on other dates." NASA catalog weight=5 (very high).
NASA catalog ID 895. ALPO/BAA weight=5.
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.
Mare Crisium 1973 Mar 20 UT ~19:55 Robinson (Devon, UK) patches
clearer in a red filter than in a blue filter. This is
unlikely to be a TLP, more likley something to do with effects
in our atmosphere, but is worth checking out, just in case.
ALPO/BAA weight=1.
Aristarchus 1978 Nov 16 UTC 19:40-19:45. Observer: Mark Kidger (UK, 6"
refractor x40, x133, x200, seeing poor-boiling) - saw the north wall of
Aristarchus to be an electric blue. No spurious colour was seen in
other craters (despite the conditions). No other observers were able to
confirm this due to the weather. ALPO/BAA weight=2.
On 1989 Jun 21 at UT07:03-07:27, R. Manske (Sun Praire, WI, USA, 1
"refractor) found the colours pink and blue on Aristarchus, like the
previous day, however this time there was also an orange tinge on the
"back"" (North?) rim of Sinus Iridum and the same too on mare Crisium,
all the way past Plato, in the direction of Cassini. This colour was
not seen at higher magnifications. The Cameron 2006 catalog ID=368 and
the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on Cassini all the way past Mare Imbrium edge,
Plato etc - maybe atm. At high power (8mm eyepiece) & no filter. Saw no
hint of color (due to smearing at high power?)." The Cameron 2006
catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on Mare Imbrium edge all the way past Plato upto
Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no
hint of color (due to smearing at high power?)." The Cameron 2006
catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on Plato all the way past Mare Imbrium edge upto
Cassini - maybe atm. At high power (8mm eyepiece) & no filter. Saw no
hint of color (due to smearing at high power?)." The Cameron 2006
catalog ID=368 and the weight=0. The ALPO/BAA weight=1.
On 1989 Jun 21 at UT 07:03-07:27 R. Manske (Sun Praire, WI, USA, 1"
refractor) saw orange on the north? wall of Sinus Iridum and over a
large part of the north of Mare Imbrium - "maybe atm. At high power
(8mm eyepiece) & no filter. Saw no hint of color (due to smearing at
high power?)." The Cameron 2006 catalog ID=368 and the weight=0. The
ALPO/BAA weight=1.
On 1963 Nov 04 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral
line dpeth anomaly? The cameron 1978 catalog ID=781 and weight=5. The
ALPO/BAA weight=4.
Plato 1971 Apr 13 UT 03:30-04:30 W. Cameron (Greenbelt, MD,
USA, 36" reflector & 6" grating) "spectrum obtained showed an
extra absorption line at 4908+/-4A & possibly another. No other
of 6 spectra of other features on the plate show it. No other of
20 spectra of Plato, including another on the same nite show it.
Further reduction & analysis remain to be done." NASA weight=5.
NASA catalog ID=#1291. ALPO/BAA weight=5.
Plato 1965 Sep 13 UTC 05:40 McCord (Mt Wilson, CA, USA, 60"
reflector with spectragraph) - "Line depth ratio in spectra a/b (H),
c/d (K) were abnormally high compared with 23 other areas, but not
quite as pronounced as other areas on other dates." NASA catalog
weight=5 (very high), NASA catalog ID #895.
Aristarchus 1987 June 14 UT 04:43-08:00 Observed by Curtis, Jacobs, and
Manske (Yanna Research Station, Carl A. Fosmark Jr. Memorial
Observatory, Madison Astronomical Society, WI, USA, 17" f4.5 Dobsonian
and the 8" f10 SCT Celestron) "On the night 13/14 June 11:42 P.M. to
3:00 A.M. local time or 14 June 04:43 to 8:00 UT. Three people
witnessed this event and all three of them observed with three
different telescopes to rule out instrumental aberration. These three
pople were members of the Madison Astronomical. The three observers
involved are Keith Curtis, Tom Jacobs and Robert Manske. Keith Curtis
took detailed notes of the event as he observed it. The observations
were made at the Yanna Research Station, Carl A. Fosmark Jr.
Memorial Observatory of the Madison Astronomical Society following the
annual picnic. This is MAS dark sky site and is located near Brooklyn,
Wisconsin. As they were observing the night sky they saw the Moon
rising and noted a strong orange color due to atmospheric effects.
Approximately 1/2 hour after the Moon rise they decided to turn one of
the telescopes on it. It was at 04:43 UT, it was noted by Keith Curtis
that as the Moon rose it began to loose the horizon color effect and
return to its normal color, but he found that the red color was not
leaving the crater Aristarchus. At first they all thought this was an
atmospheric effect but decided it was a real event since they detected
a second crater (Euler) showing red color on its rim. Keith Curtis
said that the red color was very strong on the Western rim of
Aristarchus with a strong blue/green or aqua green on the Eastern rim.
Keith also reported that the glow opaque enough to prevent viewing of
the interior of crater Aristarchus. He said they observed until 3:00
A.M. daylight saving time or 8:00 UT. and the red glow was still
visible when they ended their observing session. Robert Manske
description of the event was that he saw two craters glowing a strong
red and blue giving it a rainbow effect. He said that the red glow was
so strong he was unable to see the craters underneath during the entire
observing session. Concerning the orientation of the red and blue was
on the crater he stated that he did not remember since he failed to
take any notes. Concerning whether there was any difference in
appearance when they observed it with the 17" f4.5 Dobsonian and the
8" f10 SCT Celestron. He said that he could not detect any difference
to the lunar formation or the color on it regardless of which telescope
he used. He did mention that as the Moon was rising it had the
appearance of one large Maria in the center of the disk. This illusion
disappeared as the Moon rose higher into the sky. When talking to Tom
Jacobs he said that he remembered that he did not see anything on the
Moon until 1/2 hour after Moon rise. He said that he remembered that
the entire Aristarchus region had a strong reddish or pinkish color.
All three witness all reported variations in the type of color they
were seeing. This would indicate that individuals color perception is a
major factor during a color event. Keith Curtis saw a very strong
coloration around the rim of the craters, where Robert Manske saw the
entire region covered by this red and blue coloration and he could not
see the interior of the craters underneath. Tom Jacobs reported that
the glow covered the entire crater but he could see the crater
underneath it. The Moon never achieved a height greater than 21 degrees
so it could be that what the observers saw was caused by the Earths
atmosphere. Further details can be found on the following web site:
http://www.ltpresearch.org/ltpreports/ltp19870614.htm " ALPO
observational report. Cameron 2006 catalog ID=303 and
weight 5. ALPO/BAA weight=3.
Plato 1965 Sep 13 UTC 07:20 McCord (Mt Wilson, CA, USA, 60"
reflector with spectragraph) - "Line depth ratio in spectra a/b (H),
c/d (K) were abnormally high compared with 23 other areas, but not
quite as pronounced as other areas on other dates." NASA catalog
weight=5 (very high), NASA catalog ID #895.
On 1992 Feb 21 at 03:00-03:55UT C. Brook (Plymouth, UK, 3" refractor
x116, seeing II) found that Janssen K was very bright. Cameron 2006
catalog extension ID=441 and weight=2. ALPO/BAA weight=1.
Schroter's Valley 1898 Apr 09 UT 04:00 Observed by Pickering
(Cambridge, Mass. USA, 15" refractor) "Variations in vapr col. Break in
main col. Similar to earlier. time est. fr. given col. Date given is
8th LT =9th UT?."NASA catalog weight=2 (low). NASA catalog ID #300.
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.
Cassini/Tycho 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho
appears brighter than Cassini bright spot in red filter. In violet
filter Tycho and Cassini bright spot appear equally bright. (Tycho and
Cassini bright spot in Deslandres - added at bottom of report?). 2.5"
refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=1.
Tycho/Cassini 1995 Jan 19 UTC 04:35 Observer: R.Livesey (UK) - Tycho
appears brighter than Cassini bright spot in red filter. In violet
filter Tycho and Cassini bright spot appear equally bright. (Tycho and
Cassini bright spot in Deslandres - added at bottom of report?). 2.5"
refractor x48 (indoors), seeing Antoniadi II-IV. ALPO/BAA weight=2.
On 1979 Nov 08 at 00:16UT P.Madej (Huddersfield, UK, 6" reflector, x48
and x110, seeing II and transparency very good) detected a small faint
orange spot, close to the centre, but not at the centre. Spurious
colour was visible on the northern flank of Aristarchus. The Cameron
2006 catalog ID=74 and weight=3. ALPO/BAA weight=2.
Plato 1886 Nov 14 UT 21:45 Observed by Lihou (France?)
"Brilliant band N-S, area marked G in NE was only slightly
visible, poorly defined. Drawing (there were rays on the
floor)." NASA catalog weight=3. NASA catalog ID #253. ALPO/BAA
weight=3.
On 1981 Oct 26 UT 20:44-21:14 M. Mobberley (Bury St Edmunds, UK,
14" Cassegrain, seeing III) noticed an ~100deg wide fan on the
floor of Theophius, radiating on the central peak upto the
surrounding base of the wall next to Cyrillus crater. This fan
had a hint of yellow/red. The observer did not consider this to
be abnormal - there was certainly no loss of focus here as far
as the observer was concerned, and no mention is made of this
effect in later observations that night. Plenty of spurious
colour was reported. The ALPO/BAA weight=1.
Aristarchus 1966 Aug 05 UT 05:22-05:38 Observed by Bartlett (Baltimore,
MD, USA, 4" reflector x93, x125, x281, S=4, T=5), "S. part of floor was
granulated & est. at 6 deg bright; faint yellow-brownish tint. Rest of
crater 8 deg bright white."NASA catalog weight=4 (high). NASA catalog
ID 963.
In 1937 Apr 29 at UT 09:30 Firsoff (Glastonbury, UK, 6" reflector and
filters) observed a slight greenish colour (Cameron says colour of
ground? no TLP?). The Cameron 1978 catalog ID=420 and Weight=4. The
ALPO/BAA weight=3.
On 1958 Jul 14 at UT 21:00 Classen (Pulsnitz Observatory, East Germany,
8" refractor) observed Kepler to be 0.5 magnitudes brighter than
Aristarchus, normally it is the other way around with Aristarchus being
0.3 brighter than Kepler. The Cameron 1978 catalog ID=1084 and weight=
3. The ALPO/BAA weight=2.
Theophilus 1965 Jul 18 UTC 08:52-09:01 Observed by Cross, Ariola
(Whittler, CA, USA, 19" reflector, x450, S=4, T=3) "Red spots;
ruby red within a pink area on c.p." NASA catalog weight=5. NASA
catalog ID #885. ALPO/BAA weight=4.
1999 Jan 07 UT 01:57 C. Brook (Plymouth UK, 65mm refractor,
x125, seeing good) found this mountain unusually dull. In
contrast, Mons Pico, Montes Teneriffe, Montes Spitzenberg,
were all normal. ALPO/BAA weight=1.
Plato 1825 Apr 08 UT 01:00 Observed by Gruithuisen (Munich,
Germany) "West part of crater brighter than east part". NASA
catalog weight=4. NASA catalog ID #106. ALPO/BAA weight=1.
Aristarchus 1971 Jun 13 UT 08:21 Observed by Bartlett (Baltimore, MD,
USA, 4" reflector x51, x93, x121) "S. part of floor was brownish &
granulated" NASA catalog weight=4 (high). NASA catalog ID #1296.
Aristarchus 1978 Nov 19 UT 22:40-23:05 Observed by Pedler
(UK, 12.5" reflector, x200, seeing fair) Blue colour seen and
could not focus on this part, where as other craters were
nice and sharp in this filter. Aristarchus darker in red
light. all other craters were normal in red. Attempts to
change the eyepiece did not make any difference to the blue
colour. Cameron 2005 catalog ID=43 and weight=4.
ALPO/BAA weight=3.
On 1989 Apr 26 at UT 10:22-10:44 D. Darling (Sun Praire, WI, USA, 3"
refractor, x36-x140) found that the eastern half of Plato crater was
dark - and he checked this using several eyepieces. moderate
magnification resolved the dark region into bands, but too high a
magnification (x140) made the bands dissappear. The Cameron 2006
catalog ID=362 and the weight=0. The ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA,
3.5" reflector, x160, Seeing-very good) suspected blue tinge on north
west rim and brown/red on south east rim of Aristarchus crater + focus
was slightly difficult. No similar colour effect seen on other craters.
Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA,
3.5" reflector, x160) found that Clavius had a "D" shaped crater on its
outskirts that made it appear to have a ridge crossing through it.
Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.
On 1981 Oct 18 UT 22:14022:16 M.Mobberley (Bury St Edmunds, UK,
14" Cassegrain, seeing variable, transparency misty) found that
the central craterlet on the floor of Plato was not visible,
despite it being visible under similar colongitudes on other
nights. Might be due to observing conditions, but observer
suspicous. At 02:08 the observer comments that the central
craterlet was ellusive, and at 02:42, though it is uncertain
whether they regarded it as suspicous still at this stage?
ALPO/BAA weight=1.
Triensecker Rille 1915 Jul 03 UTC 00:00? Observed by Markov (Russia)
"Several spots changed their shapes compared with Gordeenko's depiction
on 5/23/12 see #339; which cannot be explained by light variations."
NASA catalog weight=3. NASA catalog ID #356.
On 1891 Sep 23 at UT 22:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Varitions in vapor column. Drawings. Time estimated from given
colongitude)." Cameron 1978 catalog ID=272 and weight=1. ALPO/BAA
weight=1.
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.
Tycho 1983Aug30 UT 00:15-00:18 R. Moseley (Coventry, UK, 6"
f/10 reflector, x60, transparency very good, seeing III,
improving with altitude) attention initially caught by the
impression of a rosy colouration along the NW crest and outer
wall. For perhaps 2-3 min this persisted - before fading
entirely. The observer felt that the cause may have been
psysiological - or short-lived spurious colour. However
interestingly nearby craters did not show the effect. A
sketch was made over a longer time span 00:15-00:40UT.
ALPO/BAA weight=1.
In 1919 Feb 21 at UT 22:00? an unknown English observer observed in
Lexell crater an intensely dark line going out from it. The Cameron
1978 catalog ID=370 and weight=1. The ALPO/BAA weight=1.
On 1981 Sep 20 at UT 08:00-09:40 D. Darling (Sun Praire, WI, USA,
12.5" reflector, x342, seeing=excellent) detected the small crater on
its western rim But not on the eastern floor. This was odd because both
are equal in size, furthermore smaller craters could be seen and the
Moon was at a high altitude above the horizon, so seeing not a problem.
Cameron 2006 catalog ID=154 and weight=3. ALPO/BAA weight=1.
Aristarchus 1978 Oct 23 UT 06:30-06:34 V.A. Sage (Bristol, UK,
10.25" reflector, x250, Wratten 44a and 25, seeing II) noted
that Aristarchus was surrounded by a dark area in the blue
filter. They did not regard this as a TLP at the time. However
because Aristarchus is surrounded by blue material in real life,
this should have been brighter? For this reason, despite the
observer regarding this as a negative TLP, an ALPO/BAA weight=1
has been applied.
Linne 1918 Apr 04 UTC 01:00? Observed by Markov (Russia) "In place of
crater only a hill 2km in diam. was vis. (seen in dark). " NASA catalog
weight=1, low, NASA catalof ID #368. ALPO/BAA weight=1.
"Observed early morning Moon, with 60mm OG x120, from 02-20 to 02-45
hrs UT targeting Plato, Aristarchus, and Alphonsus. From 02-20 to 02-30
hrs UT. Aristachus showed a faint pink colouration, where the light
material contacted the darker Mare surface. This was not seen after 02-
30 hrs UT." Transparency very good, seeing somewhat unsteady at first,
improving later on. The ALPO/BAA weight=2.
On 1891 Sep 25 at UT 20:00 Pickering, based at Arequipa, Peru, and
using a 12" reflector, saw in Schroter's Valley and the vicinity
"Varitions in vapor column. Time estimated from given colongitude)."
Cameron 1978 catalog ID=273 and weight=1. ALPO/BAA weight=1.
Aristarchus and Cobra Head 1968 Jul 18 UT 00:50-01:30
Observed by Moseley & Corvan (Armagh, N.Ireland, 10"
refractor, x255) and by Moore (Selsey, England, 3" refractor,
x 120) "Distinct red glow & obscur. 1st at 0050 S. of C.H. &
same size. At 0052h saw color on S.wall of Aris. Both
persisted till 0100h then both (faded, then brightened, then
faded. Plato, Gassendi & Kepler checked with neg. results.
Obscured areas reached greatest extent at 0125h wgen it was
1/2 size of C.H. & SSE (ast. ?) of it. Moore was alerted to
it & saw it in blink, but not vis. at 0107-0220". NASA
catalog weight=5. NASA catalog ID 1085. ALPO/BAA weight=4.
On 1971 Jun 16 at UT 07:08-07:09 Raimundo Nonato da Silva
(Parnaiba, PI, Brazil, 9.5" reflector, x90, seeing=good)
observed during a lunar eclipse that the Straight Wall
surroundings were darker than an observation from two days
earlier. At 07:09UT tonality became clearer. As dawn was in
progress and atmospheric turbulence, not sure if it was a TLP?
Other features were normal. The Cameron 1978 catalog ID=1297 and
weight=1. The ALPO/BAA weight=1.
Grimaldi 1971 Jun 18 UTC 02:12-02:31 Observed by Jorgensen
(Denmark, 36" refractor, 60, 200x, seeing good) "Dark reddish
spot in SW part of crater. At 60x. Became clearer at 200x &
seen in midwest also. At 0331h phenom. clearest in west, while
S. region had faded. Air turb. & dawn ended obs. at 0331h.
Seen best in yellow filter, well in red, invis. in green &
blue." NASA catalog weight=3. NASA catalog ID #1298. ALPO/BAA
weight=3.
On 1989 Jun 28 at UT 08:39-09:00 D. Darling (Sun Praire, WI, USA,
3" refractor, x36) discovered that at this time Mons La Hire was the
brightest feature on the Moon. LaPrice was also very bright. Cameron
quotes that Darling recorded that LaHire had a brightness of 7.0 and
LaPlace=7.5. Darling did not think that this was a TLP. The Cameron
2006 catalog ID=369 and weight=0. The ALPO/BAA weight=1.
On 1989 Jun 28 at UT 08:39--9:00 D. Darling (Sunpraire, WI, USA, 3"
refractor, x36) noted that promontorium LaPlace was very bright.
LaHire brigtness was 7.0 and LaPlace was 7.5. Darling suspects
that this was not a TLP because "as did not have mother-of-perl
appearance as seen on Piton at times"The Cameron 1978 catalog ID=369
and the weight=0. The ALPO/BAA weight=1.
Closest parts of the Moon at Saturn appearing from
occultation were dull and hazy. Was this an effect of
the lunar atmosphere or a high haze and halo around the Moon?
Cameron's 2006 catalog extension gives this an ID No. of 3
and a weight of 1. The ALPO/BAA catalog weight is also 1.
Aristarchus 1973 May 27 UTC 01:09-01:56 Observed by Theiss (51N, 9.67E,
75mm reflector) "3 diameters of Aristarchus around its center: orange
bright area from 01:09-01:56" Ref: Hilbrecht & Kuveler, Moon & Planets
Vol 30 (1984) p53-61"
In 1919 Dec 19 at UT 04:00 Scholes (Huddersfield, England? USA)
observed near Littrow a conspicuous ink-black mark (North of Cape
Argaeus or S of Kittrow, The Cameron 1978 catalog ID=374 and the
weight=1. The ALPO/BAA weight=1.
Reiner 1986 Jun 04 UT 09:15-09:33 Observed by Darling (Sun Praire, WI,
USA, 12.5" Newtonian x79, x40, x35, Seeing 6, sky clear and steady -
Moon 9deg above horizon). David Darling was out on the morning of 4
June observing the planet Mars. While studying Mars the crescent Moon
rose giving me a splendid view of the earthshine portion of the disk.
As the Moon rose higher into the sky he decided to turn the telescope
onto it to the earthshine region of the Moon. He made it a practice
to examine this region of the Moon to monitor for craters that appear
to glow under this light. While observing he became aware of a black
spot located in the sunlit portion of the Moon about 60 miles west of
the sunset terminator. At first he thought the black spot was a shadow
being cast by a large mountain or crater. When looking at his lunar
charts he could not locate any feature that would account for it. As he
continued to study the black spot he realized that it appeared darker
than any shadows on the Moon. It was at 4 June 1986 4:15 A.M. CDT or
9:15 U.T. when he first sighted the phenomena and it was at 4:25 A.M.
CDT or 9:25 U.T. that he realized he was seeing a lunar transient
phenomena event. It was at this time that he could start to see silvery
filaments or streaks in the black patch. Between 9:23 and 9:25 U.T. he
watched the black patch disappear. When the black spot had disappeared
he found that the location of the black spot was over the crater
Reiner. he estimated that during the L.T.P. event that area covered by
the black cloud was approximately 40 to 50 square miles. He also had
examined other formations on the Moon during this event and none were
exhibiting the same phenomena witnessed over the crater Reiner.
Southern cusp obseved by H.Hill (UK) on 1984 Jul 25. Solar
Selenographic colongitude=232.6. Observer noted a dusky ill-
defined strip in Earthshine extending beyond the southern cusp
that appeared "atmospheric". Note that this is almost certianly
not a TLP but is worth checking out if the libration and solar
colongitude is similar, just to verify that this is what the Moon
normally looks like. ALPO/BAA weight=1.
Whippey of Northolt, England, using a 6" reflector, x64
(seeing=good) saw a series of weak glows, and a final flash
at UT04:18. Similar weak glows had been seen in Petavius and from
this position approximating Linne (?). At 04:20UT Moseley, of
Armagh, Northern Ireland, using a 10" reftactor x 80
(seeing=fair) saw a flash in the centre - Alphonsus or Parrot?
Cameron says - confirmation of the last flash of Whippey? Cameron
2006 extension catalog ID=13 and weight=3. Cameron 1978 catalog
ID=1042 and weight=5. ALPO/BAA weight=4.
On 1969 May 20 at UT 03:18-04:27 Cross (Las Cruces, NM, USA 6"
refractor), Olivarez (Spain?), Kohlenberger, Gibson, Miller, Duarte and
Harris (CA, USA) observed brightenings, pulsations, scintillations in
Aristarchus crater. Cameron says independent confirmation seen by 4
observers, 1-2 magnitude increases, ranged between 1-30sec. Most active
period was 03:18-03:20UT, 04:17-04:27UT (Las Cruces). Calkins (West
Covins, CA, USA) UT 03:40-04:25 saw one major brightening up 2
magnitudes above steady state lasting 0.2 to 1.5 sec and another slow
brightening lasting 5-10 seconds. Kelsey (CA, USA) saw at 03:43-03:48UT
some brightenings. These observations were made during the Apollo 10
watch. The Cameron 1978 catalog ID=1127 and 1128 and weight=5. The
ALPO/BAA weight=4.
On 1973 May 06 at Ut 04:48 Bell (Lodi, CA, USA, 8.5" reflector x142)
saw a slow brightness increase in Reiner to magnitude 6, when suddenly
in the north east (IAU?) quadrant of the floor there was a very bright
pin-point blue-white flash of magntude 2 for approximately 0.5seconds.
After this the bright glowing of the crater diminished over about 15-
20 sec befofre returning to normal. The Cameron 1978 catalog ID=1366
and weight=3. The ALPO/BAA weight=3.
Mare Crisium 1972 Mar 18 UT 19:06-21:00 Obsevred by Prvost and Dorchain
(Belgium, 3.5" reflector, 168x and 336x) "at 1906h Pruvust rep'ted 2
pts. moving from Aout to Prom. Olivium. Minutes later, Dorchain saw a
new pt. Others saw nothing unusual fr. 1912-2100h (Fitton, Ash, Peters,
Watkins,et al in England - but this was later than the event)" NASA
catalog weight=2 (poor). NASA catalog ID #1325.
In 1949 May 31 UT02:37 LT Johnson observed a flash near the W
limb of the Moon at the same latitude as Riccioli. No colour
seen, the magnitude was 9-10, and duration < 0.5 sec. If there
was any motion then it must have been < 24 km. He wasn't looking
at it when it happened, so the motion aspect is uncertain.
Indeed he was not absolutely certain if it was on the limb, or
just inside or outside? The BAA/ALPO weight=1.
On 1877 Jun 14 at UT 20:00 Harrison (USA?) noted on the western limb
variations of brilliancy along the dark limb reembled light of a moving
mirror held to a strong light against shadow of a dark ha.. Faint
greenish-blue streamers resembling terr. aurora streamers. He thought
they were same cause on the Moon. The Cameron 1978 catalog weight=3 and
ID=192.
On 1881 May 04 UT 20:00 "Gamma" a psuedonym for an astronomer
(Germany?) observed Aristarchus to be be a very bright 8th magnitude
star with pulsations. The Cameron 1978 catalog ID=221 and the weight=3.
The ALPO/BAA weight=2.
On 1939 Feb 23 at UT17:00 Malakhov, Filippoova (Russia) observed an
intensive luminescence in background of ashen light that had ceased in
March, in Aristarchus (confirmed of Andrenko - says Cameron). Cameron
1978 catalog ID=446 and weight=5. ALPO/BAA weight=3.
On 1969 May 21 at UT 03:40-04:25 Kohlenberger (Fullerton, CA, 12"
reflector), Harris, Miller (Torrence, CA, 12" reflector), Bell and
Calkins (Ojai, Duarts, CA, USA), Kelsey (West Covins, CA, Riverside,
CA, USA) observed scintillations in Aristarchus - Cameron says
independent observations?). Members of Astronet took part in this
observation. Kelsey saw a brightening but not on the order of seconds
as others reported. Cameron suspects an atmospheric effect and also
comments that this was during the Apollo 10 watch. The Cameron 1978
catalog ID=1130 and weight=2. The ALPO/BAA weight=2.
Jansen-Maskelyne 1969 Jul 20 UT 00:53-01:00 Observed by Jean and Collak
(Montreal, Canada, 4" refractor and 6" reflector) "Jean and Collack
noted obscur. between Jansen and Maskel. from term. No features
discernible here whereas Proc. & Theoph. were already vis." NASA
catalog weight=2 (low). NASA catalog ID #1169.
Near Langrenus 1969 Jul 20 UT 00:53-01:00 Observed by McNamara (Canada,
6" reflector) "McNamara saw a flash nr. Lang. (meteor?) Apollo 11
watch)" NASA catalog weight=0 (very unreliable). NASA catalog ID #1169.
near Proclus 1970 Apr 12 UT 00:15, 00:20 Observed by Loocks
(Valparalso, Chile, 12" reflector, x88) "Brilliant in area NW
of crater. No change in brightness Contrast to opacity of
illuminated fraction of this day Later saw a flash on the
moon. (Apollo 13 watch)." NASA catalog weight=2. NASA catalog
ID #1239. ALPO/BAA weight=2.
Theophilus 1970 Apr 12 UTC 00:25 Observed by Collier
(Montreal, Canada, 6" reflector?, x180) "Sharp E. inside wall
flashes; c.p. lighter than floor. Pink on peak & illum. wall.
Drawing. (Apollo 13 watch)." NASA catalog weight=2. NASA
catalog ID #1240. ALPO/BAA weight=2.
Klein (in Albategnius) 1971 Apr 31 UT 21:30 - 1971 May 01 UT
00:00 Observed by Fitton (England, 8" reflector, x200, filters)
"Attention distracted from Ptolemaeus to Klein where floor was
not normal. It had a pink line at foot of inner N. wall which
was bright in sunlight. Pink extended from N. to W. pt. Floor in
NW quad. was reddish-brown. All similarly illum. craters were
examined & no trace. Klein shifted to all parts of lens but
color persisted, but could not be induced in other craters. At
2230h floor took on more color in NW. In filters floor detail
vis. in red, almost invis. in blue, c.p. barely vis. Color
bright in red, & black in blue filter. In white light looked
like atm. above surface. Ptol. was equal in red & blue, & also
other craters. All seemed normal again on May 2nd. (date in ref.
gives Apr 30, Moore gives Apr 31? Ap 30 wrong as feature not
illum on that date, not even illum. on 5/2/71!)" NASA catalog
weight=4. NASA catalog ID #1292. ALPO/BAA weight=3.
On 1982 Oct 22 at UT23:45-00:10 K. Marshall (Medellin,
Columbia) found the W-NW rim of Proclus was both red and very
bright. The brightness is normal, but as no similar colour
effect was seen elsewhere on the Moon, this was regarded as a
TLP. The Cameron 2006 catalog ID=187 and the weight=3. The
ALPO/BAA weight=3.
On 1984 Sep 30 at UT17:30-18:45 P. Madej (Huddersfield, UK, 83x,
seeing=I-II, transparency very good and no spurious colour) "Twilight
Earthsine at 1732, 83x light-darker blue by 1800. Looked like a star of
mag. 3-4 with no variations. Spot moved slightly from side to side, not
connected with alignment or optical. Luminescence may have expanded and
contracted, but not sure. Other regions in Earthsine not seen.
(Mobberley) saw Earthshine with naked eye. Aris seen before clouds
came. Earthsine > normal T=E. (Foley) took CED readings which confirm
the brilliance of it. No other features could be measured in
Earthshine."The Cameron 2006 catalog ID=250 and the weight=0. The
ALPO/BAA weight=1.
On 2009 Mar 31 at UT 19:26-19:50 Cook M.C. (Mundesley, UK,
90mm Questar reflector, x130, seeing II-III, transparency poor
to moderate). The crater had it's north-east to west wall
illuminated and a central feature on the floor, faintly seen -
both of these are normal. The crater itself though was much
brighter in a red filter, bright in a wellow filter, but dull
in a blue filter. Possible variation seen whilst using the red
filter, but this may have been due to haze. All other features
behaved normally. The ALPO/BAA weight=3.
On 1982 Oct 22 at UT23:55 K. Marshall (Medellin, Columbia) found
the NE cleft in Posidonius to be abnormally bright, much more so
than the walls of the crater. The ALPO/BAA weight=1.
On 1877 Jun 16 at UT 20:00 Harrison (USA?) noted on the western limb
variations of brilliancy along the dark limb reembled light of a moving
mirror held to a strong light against shadow of a dark ha.. Faint
greenish-blue streamers resembling terr. aurora streamers. He thought
they were same cause on the Moon. The effect was brighter two days
earlier. The Cameron 1978 catalog weight=3 and ID=192.
On 1969 May 22 at UT04:28-05:06 Harris (Tucson, AZ, USA, 21"
reflector), Ricke (8" reflector), and Cameron (Greenbelt, MD, USA, 21"
reflector, x40 and x250) observed "Brightenings & pulsations. 1st per.
0428-0440h(R&H); then 0500(R). 3rd per. 0506h(H). Pulsations
intermittent & increase @ 1/2 mag. except 1 was 1-2 mag. greater.
(atmosp. ?). Cameron at 0130-0330 did not see Aris. in 12-in refl. at
40x or 250x, & saw nothing abnormal. (Apollo 10 watch)". The Cameron
1978 catalog ID=1133 and weight=1. The ALPO/BAA weight=2.
On 1964 Jul 16 at 03:55-04:10UT Cragg (Mt Wilson, CA, USA, 6"
reflector, x180, seeing 7, transparency 6) observed a pseudo hill
(700m high) some 3 km in diameter and casting a shadow, south
east of Ross D. The Cameron 1978 catalog TLP ID=830 and the
weight=4. The ALPO/BAA weight=3.
On 1969 May 23 at UT 03:58-04:17 Wald (Zurich, Switzerland), E. & L.
Cross (Las Cruces, NM, USA, 6" reflector, x120, S=F, T=VG). "Crater
pulsations (Wald). Variations suspected at 0318, 0320-25 by E. Cross,
0417-27 by E. & L. Cross saw non-periodic short var., sudden increases
1-2 mag. & sudden to slow, 1-30s decreases to normal 0441-0446.
(confirm. ?Apollo 10 watch)". The Cameron 1978 catalog ID=1139 and the
weight=5. The ALPO/BAA weight=4.
On 1969 May 23 at UT03:04-03:10 Jean (Montreal, Canada, 4" refractor,
seeing=good, transparency=3.) observed a white patch on the southern
horn of the Moon. It enlarged and became coloured pink and blue without
filters and reddish in a yellow filter(?). At 03:10UT the area became
as normal as the rest of the environment. Other observers participating
were: Rousseau (Canada, 8" reflector), Collier (Canada, 5.25"
refractor) and Dumas, St. Cyr (Canada, 5.25" refractor). Cameron
suspects a real event mixed in with Chromatic Aberation? Apollo 10
watch. The cameron 1978 catalog ID=1138 and weight=3. The ALPO/BAA
weight=2.
On 1970 Apr 12 at UT 23:56 Loocks (Valparsiso, Chile, 12" reflector,
x88) observed a flash of magnitude 10 in Aristarchus - "not as
brilliant as usual (obscur. ?). Did not obs. permanent luminosity as in
other apportunities. (Apollo 13 watch)" The Cameron 1978 catalog ID=
1243 and weight=3. The ALPO/BAA weight=2.
Cyrillus 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso,
Chile, 12" reflector x88, LION network) "Small crater in Western
Cyrillus was much brighter than anything in the area". NASA catalog
weight=1 (very low). NASA catalog ID #1242.
Hase 1970 Apr 13 UT 01:28 Observed by Dumas (Montreal, Canada)
"Intermittent light on S.wall of crater (atm. ?) (Apollo 13 watch).
NASA catalog weight=1 (very poor). NASA catalog ID #1244.
Mare Numbium 1970 Apr 12 UT 23:46-23:52 Observed by Loocks (Valpareiso,
Chile, 12" reflector x88, LION network) "Small crater in Western
Cyrillus was much brighter than anything in the area. Earlier
he got a blink at 35deg W 15 deg S 10th mag. Drawing (Apollo 13
watch)" NASA catalog weight=2 (poor). NASA catalog ID #1242.
On 1972 May 19 UT 18:24 observed by Engels (52deg 40'N 9deg 5E, using
10x50 binouculars, transparency 2 out of 5, seeing unknown), a orange
to yellow bright flash was seen, lasting 0.1 sec at the southern rim of
Mare Crisium. Published in Hilbrecht and Kuveler, Moon and Planets, 30
(1984) p53-61. ALPO/BAA weight=2.
On 1865 Nov 24 at 20:00? UT Williams and others (England, UK, 4"
telescope) saw in Earthshine that Carlini was had a distinct 8th
magnitude star-like speck in it. The Cameron 1978 catalog ID=140 and
the weight=3. The ALPO/BAA weight=3.
Torricelli 2011 Dec 31 UT 16:39-17:00 R.Braga (Milan, Italy,
80mm refractor) found the north rim or Torricelli to be very
bright at the start of the observing session but dimmed
considerably at around 17:00UT. Observer not sure on the
normal appearance of this crater. ALPO/BAA weight=2 followinf
repeat illumination images in the 2021 Apr ALPO TLO..
On 2009 Apr 01 at UT 20:00-20:30 C. Brook (PLymouth, UK,
5" refractor, x40 and x100, using red and blue gelatine
Edmund Optics filters observed that a few bright areas
in the centre of mare Crisium were brighter in red at
the start of the observing session than in blue, although
not at a higher magnification. The observation ended when
seeing worsened. The ALPO/BAA weight=2.