Plato 1870 Feb 18 UTC 00:00? Observed by Gledhill (Halifax, England,
9" refractor) "Illum. of another group of craters different from group
in Aug. & Sep. obs. (date is F18 if phase is similar to Ap 1870)
NASA catalog weight=2 (low). NASA catalog ID #164.
Aristarchus 1969 Dec 26 UT 03:35-03:45 Observed by Kilburn (England,
6" x192) "Suspected faint blink & glow outside of SW(IAU?) wall. Large
area was gray toward Herod. Another blink inside between 2 bands
at0330h. At 0345h neither blinks seen. Blink seen in blue (=red
event?). Next nite crater was normal." NASA catalog weight=3 (average).
NASA catalog ID #1231.
Plato 1971 Dec 05 UT21:00-21:10 D.B.Taylor (Dundee, UK, 10"
refractor, conditions poor and turbulent). Observer suspected
colour orange colour near bright spot on north wall. Observation
ceased due to being clouded out. ALPO/BAA weight=1.
Aristarchus 1968 Dec 07 UT 07:00? observed by Corralitos Observatory
(Organ Pass, NM, USA, 24" reflector+Moon Blink) "Bluing around 3
craters, strongest at Aris. Lasted several days. Photos show 30% more
intensity in blue filter than in red or neutral. Moon's declination
northerly. Obs. think it was due to atm. effects" NASA catalog weight=5
(very high). NASA catalog ID #1105.
On 1968 Dec 07 at UT 07:00? Corralitos Observatory (Organ Pass, NM,
USA, 24" reflector and Moon Blink device) observed a bluing around
three craters, one of which was Kepler. This effect lasted several
days. Photographs were taken that show30% more intensity in the blue
filter than in red or neutral. The Moon's decination was northerly. The
observers suspect that it was an atmospheric efect and not a TLP. The
Cameron 1978 catalog ID=1105 and the weight=5. The ALPO/BAA weight=3.
Gassendi 1940 Jul 22 UT 05:00 Observed by Haas (NM?, USA, 12"
reflector?) "Largest bright spot in SE part of floor had I=8.6,
but 6+ on other dates. (see #472, 474 & 475). (8.6 is normal?)"
NASA catalog weight=4. NASA catalog ID #469. ALPO/BAA weight=3.
Proclus 1956 Jul 25 UTC 06:16-06:33 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector, x180, S=3-5, T=4) "C.p.
distinctly vis. within floor shadeo, est. 5 deg bright but no
trace of it at col. 122.37deg in Oct, '55(Oct. 4?)." NASA
catalog weight=4 (good). NASA catalog ID #645. ALPO/BAA
weight=2.
Four bright spots seen in Mare Crisium. There was also peculiar
behaviour of the terminator. Source: Midlehurst 1968 catalog TLP ID=16.
Ref Web 1962 p62-76. The ALPO/BAA weight=1.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th.
Cloud-like effect where light had been (on 8th). Cameron 1978 catalog
TLP ID No.=139 and weight=3.
Daniell 1894 Feb 23 UT 00:00? Observed by Krieger (Germany)
"Strong, brownish-red coppery hue." NASA catalog weight=4 and
catalog ID #281. ALPO/BAA weight=3.
1894 Feb 23 UT 00:00(?) Posidonius N. Wall observed by
Krieger (Germany) "Strong, brownish-red coppery hue." NASA
catalog weight=4 and catalog ID #281. ALPO/BAA weight=3.
Darling, alerted by Keyes saw Aris >> brighter obj on moon (as
it normally is) Comet ray & N rim of Herod. >> could see no
detail - Aris. except two bands, moon was pale yellow (low alt.)
with halo around it. Nothing unusual elsewhere. Cameron 2006
catalog extension ID #384 and weight=0. ALPO/BAA weight=1,
just in case there is some merit in this report?
Darling, alerted by Keyes saw Aris >> brighter obj on moon (as
it normally is) Comet ray & N rim of Herod. >> could see no
detail - Aris. except two bands, moon was pale yellow (low alt.)
with halo around it. Nothing unusual elsewhere. Cameron 2006
catalog extension ID #384 and weight=0. ALPO/BAA weight=1,
just in case there is some merit in this report?
Near Bacon, Barocius, Nicolai i.e. 16E-25E, 52S-42S 1878 Nov 13 UTC
02:30 Observed by Hammes & others (Oskaloose, Iowa, USA, 6.5"
reflector) "Lunar volcano (drawing) (investigation & correspondence
cast doubt on location)" NASA catalog weight=? NASA
catalog ID #208.
LeCroy Jr. and Sr. (Springfield, VA, 4.5" reflector, x75, S=VG, T=3)
observed the following in the Aristarchus and Herodotus region: "Prior
to 0542h the 2 craters were 2 bright spots within bright areas. Then a
brightness developed merging them together into one big bright area
with no discernable details. Returned to normal at 0554h. Sketches.
Albedo=10+ where normal albedo is 9.5". The Cameron 1978 catalog ID=
1413 and weight=4. The ALPO/BAA weight=3.
On 2006 Dec 08 at UT 17:32 (+/- 2 min) M. Collins (Palmerston
North, New Zealand, 3.5" Maksutov, 40mm eyepiece, seeing III-IV)
observed during daylight hours an extremely bright flash south of
Godin. It flared up and down over a fraction of a second an appeared
three times brighter than the Moon background itself. The ALPO/BAA
weight=1.
Plato 1877 Nov 23 UT 22:00? Observed by Crain, Klein, Eng.
officer (France?, Cologne, Germany, England?, 6" refractor?) "A
luminous triangular object on floor & each craterlet on floor
outlined as a lum. pt. (indep. confirm.?)" NASA catalog weight=5
(very high). NASA catalog ID #199. ALPO/BAA weight=4.
On 1955 Oct 04 UT 22:00 Dubois and Kozyrev (Crimea, Soviet Union,
50" reflector) observed the following in Aristarchus crater: "Low
disprsion (d=.13 whereas on Oct 28 & Nov d=0.03) Spectogram showing
emiss. in central part nr. H&K". Cameron says that this is a
confirmation of the previous Bartlett TLP? The Cameron 1978 catalog ID=
619 and weight=5. The ALPO/BAA weight=5.
Pico 1976 Aug 13/14 20:50-01:00, 03:15 Observed by Foley? or Findlay?
(England, S=E) "Dark line to the E. (IAU?) of Pico obs. & persisted
till 0100h. On 14th the whole area around Pico was gray & diffused. At
0315h detail reappeared & NW corner sparkled. Small brilliant spot
appeared due N. of it & the albdeo exceeded Aristarchus (=9+ ?)" NASA
catalog weight=3 (average). NASA catalog ID #1443.
Aristarchus 1969 Nov 27 UT 20:00? Observed by Miles (coventry, England,
5" refractor, x120) "Strong pink color in N. part; spectacular strong
blink. Did not notice obscur. Bands were vis." NASA catalog weight=4
(high). NASA catalog ID #1227.
1936 Oct 04 UT07:42 W.Haas drew bands, many smaller spots on
floor. Pickering's atlas 9D col 141 shows bands but no bright
spots. Haas' location Aliance, OH, USA. Reference: Haas, W.
J.Royal Astr. Soc. Canada. Cameron 1978 catalog ID=416 and
weight=3. ALPO/BAA weight=2.
Schroter's Valley & Vicinity 1897 Oct 15 UT 19:00 Observed by
Pickering (Cambridge, Mass. USA, 15"? refractor) "Variations in vapor
col. change in direction of cloud rising from F is marked - (time est.
from given colon.)" NASA catalog weight=3 (average). NASA catalog ID #
292.
Theophilus 1971 Dec 06 UT 21:35-23:20 Observed by Findlay, Ford,
Taylor, Robbie (Dundee, Scotland, 10" reflector x180), Bolger
(Chester, England), Fitton (Lancashire, England, 8" reflector).
"Red-orange patch on E. (IAU?) floor even without a blink.
Others confirmed. Dimmed by 2105h but still seen. Dimmer yet at
2230h & gone at 2300h. Baum saw brownish-red patch at 25.5E,
12.5S. Taylor saw reddish patch SE of crater, fainter at 2220h,
gone at 2300h. Fitton saw image very dull,yellow & steady.
Filters showed nothing unusual, & nothing seen at 2320h." NASA
catalog weight=5. NASA catalog ID #1320. ALPO/BAA weight=3.
Aristillus 1939 Sep 03 UTC 05:00 Observed by Haas? (New Mexico?) "Dark
area in W. part of floor was I=4.0, comp. with I=1.3, & I=3.7 (see #
450, & #454). Used different telescope, but can't explain diff. in
albedo, since phase is similar in 2 & dist. from term. similar in all
(normal?)." NASA catalog weight=4 (good). NASA catalog ID #459.
Aristillus 1939 Jul 06 UT 05:00 Observed by Haas? (NM?, USA, 12"
reflector?) "Dark area in W. part of floor was I=1.3 but other dates
were brighter. or same. yet cond. similar (see #454, 459 & 461)" NASA
catalog weight=4 (good). NASA catalog ID #450.
Fracastorius 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth,
England) "Blink seen. Floor brighter in red than in blue. Suspects
colour is spurious". NASA catalog weight=1 (very low). NASA catalog ID
#1410.
Plato 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth, England)
"Blink seen. Floors brighter in red than in blue". NASA catalog weight=
1 (very low). NASA catalog ID #1410.
Theophilus 1975 Jul 27 UT 22:45 Observed by Robinson (Teignmouth,
England) "Blink seen. Floor brighter in red than in blue". NASA catalog
weight=1 (very low). NASa catalog ID #1410.
On 1979 Jul 14 at UT 00:24-01:10 P. Madej (Huddersfield, UK, 15cm
reflector, x35, x52, x73 and x110, seeing IV-V, transparency very
good). Note that the observing date was also written as Jul 18th in the
original report? Puiseaux was very clear in white light, but could not
see the cenrtral peak. The central peak though was visible through a
Waretten 15 (yellow) filter. The ALPO/BAA weight=1.
On 1904 Aug 01 at 05:00? Pickering (Echo Mt., CA, USA) UT Plato:
"Bright hazy obj., 2" diam. on floor, Obs before & after were normal".
The Cameron 1978 catalog ID=318 and the weight=4. The ALPO/BAA
weight=3.
Messier A 1951 Oct 20 UT 00:00? Observed by Moore (England)
"Brilliant white circular patch in it. has seen it & Messier
blurred several times." NASA catalog weight=4 (good). NASA
catalog ID #545 Note that the date and time given are probably
wrong as the Sun is ~7deg below the local horizon at this time.
ALPO/BAA weight=1 to reflect this error.
In 1955 Sep 07 at UT 03:45-05:20 Bartlett (Baltimore, MD, USA, S=5, T=
3) observed the following in Aristarchus crater: "Strong blue-viol. gl.
in E, NE rim & E. base of c.p. Dark viol. nimbus, granular aspect of
floor". Cameron suggests that this is confirmation of Firsoff's TLP of
the same day? The Cameron 1978 catalog ID=609 and weight=5. The
ALPO/BAA weight=2.
Copernicus 1955 Sep 07 UT 03:20 Observed by Firsoff (Somerset, England,
6.5" reflector x200, S=VG) "Brightening up of crater in the blue
filter" NASA catalog weight=4 (high). NASA catalog ID #607.
Eratosthenes 1976 Sep 14 UTC 04:24 Observed by Bartlett (Baltimore, MD,
USA, 4.5" reflector, 45-300x, S=6, T=3 hazy) "Pseudo shadow F
disappeared & wall here is same intensity as whole inner crater wall, =
4deg. No change in X, X3 or X2 (4 deg much brighter than normal)." NASA
catalog weight=4 (good). Cameron c1978 atalog ID=1453 and weight=4. The
ALPO/BAA weight=2.
Aristarchus 1956 Jul 28 UT 05:20-05:55 Observed by Bartlett
(Baltimore, MD, USA, 5" reflector, x180, S=5, T=4) "Vivid blue-
viol. gl. on c.p., band across E. floor, & EWBS, E. & NE wall".
N.B. The effect had vanished by 07:20UT. NASA catalog weight=4.
NASA catalog ID 646. The ALPO/BAA weight=2.
On 1975 Jul 29 at UT 00:00 Fraser (England, 6" reflector, x70) and
Howick (England, 3.5" reflector) observed the occultation of 51 Pisc.
at emersion - Fraser saw a flash or spike of liht which proceeded
emersion of primary by 0.4sec. The 9.0 mag companion appeared some
moments later. Howick at 1 km away, with 3.5" reflector noted nothing
unusual. Cameron says that no 3rd companion is known. The Cameron 1978
catalog ID=1411 and weight=2. The ALPO/BAA weight=1.
Aristarchus 1976 Aug 15 UT 23:00-23:45 Observed by Garbott (2)
(Bedfordshire, England, 10" reflector x500, seeing Antoniadi I)
and by Moore (Sussex, England, 15" reflector, x360, seeing
Antoniadi IV) "Noted blue color on N. wall extending toward
Herod. Also saw orange color in S. region. Confirmed by father.
(similar to many of Bartlett's rept's.), More noted nothing
unusual at 2320h." NASA catalog weight=4. NASA catalog ID #1444.
ALPO/BAA weight=2.
On 2009 Oct 09 UT11:00-11:04 NASA's LCROSS upper centaur stage,
followed 4 min later by the observation spacecraft, is due to impact
into a the crater Cabeus in the hope of kicking up some dust and
possible frozen volatiles. Note that this description is intended for
observers on the date of impact and it is doubtful that any new
science could be achieved by re-observing the same area months
after the impact. If you are observing on the date of impact, then
please observe around 11:00-11:04UT and ignore the predicted times in
the headings. However this report is included as techniqcally
if something is seen it is a TLP, albeit man-made! For those observing
on the date in question here are a few observing tips to maximize
the science of your observations: (1) If you are imaging, then please
try to obtain images before the impact because you can then subtract
these from images taken during the impact and hence show up faint
changes that you might normally miss. (2) If you have a spare scope and
camera,use this to observe through filters such as UBVR or I, or if you
have narrow band interference filters, try observing in
say Hydrogen Alpha, Methane, OH, or indeed any volatile that you
might expect to see in a comet (the main source of water at the poles).
(3) Please try checking the area long after the impact, just in
case other effects might trigger a TLP. (4) Please go to some trouble
to ensure accurate timings- these will be essential in order to
understand the sequence of events - assuming any are seen. Timings can
be obtained using a short wave radio or via a GPS. Note that you should
always use UT or UTC. (5) Please send any observations that you make
into the upload section of the LCROSS campaign observers web site. If
you belong to an astronomical society e.g. BAA or ALPO, then do please
send copies of your observations to the Lunar Sections of your society
or club. (6) Finally this desription will be updated a day or two after
the planned impact.
Observations made with a variable polarizer (akin to a crater
extinction device) to measure brighness with red and blue filters.
Some variability in brightness noted. With the Kodak Wratten
25 and 38A filters there was little or no increase in contrast with the
red filter, but with the blue filter there was a great increase in
contrast of the brighter areas of the crater - the crater floor and
patches of lighter material, especially at the north end. The remaining
areas were supressed with the Blue 38A. ALPO/BAA weight=3.
On 1966 Apr 12 at UT 01:05-01:23 Whippey (Northolt, England, UK, 6"
reflector x212) and Corralitos Observatory (Organ Pass, NM, USA, 24"
Moon Blink) observed in Gassendi: "Abrupt flash of red, settling
immediately to a point of red haze near NW (IAU?) wall. Continuous till
0123h. (Not confirmed at Corralitos Obs. MB--at same time?". The
Cameron 1978 catalog ID=927 and weight=3. The ALPO/BAA weight=2.
Alphonsus 1980 Jul 04 10:35-10:48UT Observed by B. Hobdell (St
Petersberg, Florida, 6cm refractor and 20cm reflector. x130. Seeing
Antoniadi I) "A dark discolouration was seen on the east floor,
adjacent to the central peak and the dark area on the west floor
directly south of the prominent dark area. Hobdell thinks it was a
small crater on a secondary rill with slight venting discolooration,
seen in Orbiter pictures. A sketch was made and the BAA alerted. The
sketch matches the dark spots in Alphonsus (normal aspects?)" cameron
comments that the sketch looks like the aspect in the Lick composite
photos. Foley comments that dark at this lunar age is not normal. A UK
observation made 14 hours later looked normal. Cameron 2006
catalog extension ID=99 and weight=2. ALPO/BAA weight=2.
Aristarchus 1974 Sep 08 UT 04:45-06:30 Observed by Cowan and Johnson
(Dublin, TX, 8" reflector, x59, x152, S=7) "Saw a bright luminous,
blue, misty cloud on th NE rim. Obscur. for 1st hr. then gave way to
pink & features became vis. Cloud was tear-drop shape. No movement to
glow. Pink cloud glowed too. Very tenuous by 0130h. (Nakamura says
there were no seismic events within several hrs. of this time). Another
person saw it without being advised as the where it was." NASA catalog
weight=5. NASA catalog ID #1393. ALPO/BAA weight=4.
Copernicus 1939 Sep 06 UTC 06:00 Observed by Haas? (New Mexico?, 12"
reflector) "Dark area at foot of N. inner wall had I=4.8 comp. with I=
1.8 in #451. (same phase so a real difference)." NASA catalog weight=4
(good). NASA catalog ID #460.
On 1878 Oct 18 at UT 21:00? Gaudibert (France?, 4"refractor) observed
Webb's white spot on SW border of Wargentin to be brilliant, however
this had vanished by Oct 19. The Cameron 1978 catalog ID=204 and the
weight=4. The ALPO/BAA weight=3.
Tycho 2006 Jan 22 UT 06:34-06:36 Observed by Fabio Carvalho
(Assis, Sao Paulo Brazil, 25cm f/6 Newtonian) "Green colouration
seen on a rim of Tycho, effect remained visible for only 2
minutes. Attempts to image it shortly afterwards failed as it
had finished by then" An REA-Brasil observational report.
ALPO/BAA weight=3.
In 1899 Aug 29 at UT 15:30-16:15 Fauth (Landstuhl, Germany) noted that
the inner parts of Copernicus glowed in weak phosphorescent light
though not directly illuminated by the Sun. He thought it probably due
to multiple reflections from lighted walls. The craters Bullialdus and
Reinhold did not shiw this effect though. The Cameron 1978 catalog ID=
305 and the weight=0. The ALPO/BAA weight=1.
Vitello 1939 Jul 10 UT 09:30 Observed by Haas? (NM? USA, 12?"
reflector) "S.part of dark area was I=2.5 but diff. values other times.
(see #453, &457). Cond. were similar" NASA catalog weight=4 (high).
NASA catalog ID #452.
On 1979 Jul 18 at UT 00:24-01:10 P. Madej (Huddersfield, UK, 15cm
reflector, x35, x52, x73 and x110, seeing IV-V, transparency very
good). Note that the observing date was also written as Jul 14th in the
original report? Puiseaux was very clear in white light, but could not
see the cenrtral peak. The central peak though was visible through a
Wratten 15 (yellow) filter. The ALPO/BAA weight=1.
On 1878 Oct 18 at UT 21:00? Gaudibert (France?, 4" refractor) observed
Webb's white spot on SW border of Wargentin that had been brilliant the
previous night, had completely vanished tonight. The Cameron 1978
catalog ID=204 and the weight=4. The ALPO/BAA weight=3.
On 1975 Sep 29 at 21:15-21:55UT P.W. Foley (Kent, UK, using a 12"
reflector, x200, seeing III), saw colour on Plato - blue on the inner
south west rim and red on the inner south east rim. No colour was seen
elsewhere on the Moon. This was a BAA Lunar Section Observation.
ALPO/BAA weight=2.
Vitello 1939 Jul 11 UT 09:30 Observed by Haas? (NM, USA, 12"?
reflector) "S. part of dark area was I=2.5, but diff. values other
times. (see #453, & #457). Cond. were similar." NASA catalog weight=4
(high). NASA catalog ID #452.
Aristarchus 1975 Aug 02 UT 02:23-02:49 Observed by Foley (Kent,
UK, 12" reflector, photos obtained) "Floor of crater was slate
gray/blue & a dense blue-viol. obscur. at NW corner of floor.
Photos show smudge there. Phenom. vanished at 0249h. No alert or
blink in order to get photos before it faded. Crater was
abnormally bright." NASA catalog weight=5. NASA catalog ID #
1412. ALPO/BAA weight=3.
On 1956 Jul 30 at UT 19:13 Dzapiashvili (Pulkova, Russia) observed the
following in Posidonius: "Short term sharp changes in polarization in
crater (in ashen light)". The Cameron 1978 catalog ID=643 and weight=5.
The ALPO/BAA weight=5.
Aristarchus 1897 Sep 22 UT 00:41 Observed by Molesworth (Trincomali, Shri
Lanka, 9" reflector, conditions very good) "A Glimmering knotted streak seen
beneath and parallel to the W wall. At the centre of the E. Edge of the shadow
was another faint glowing effect – probably coincident with the central peak.
The crater was more than half filled with shadow." NASA catalog weight=3. NASA
catalog ID #290. ALPO/BAA weight=2.
Alphonsus 1966 Apr 17 UT 05:06 Observed by Cross (England) "Blink on SW
floor of Alphonsus (moon rise @ 04:20, rotating filterblink rechnique
without image tube that Tridant and Corralitos had)." NASA catalog
weight=3 (average). NASA catalog ID #928
On 1912 Nov 07 at 06:37 A.C. Henderson, using a small telescope, after
the Moon emerged from cloud, saw a complete silvery light around the
Moon's disk such that the Moon resembled a ring rather than a crescent.
This was seen both with the naked eye and the telescope. The reference
for this comes from: Henderson, Alex, C.; "Circle of Silvery Light
around the Old Moon", English Mechanic, 96:394, 1912. The ALPO/BAA
weight=0.
East Limb 2012 Oct 13 UT 23:36:32 (+/-5 sec) A. Chitaylo
(Novokuznetsk, Russia)imaged a bright point just slighty below
the equator, a bright point on the eastern limb of the Moon
during Moon rise. It was not a hot piXel on the CCD camera. It
was not visible in other images from the Moon rise sequence.
ALPO/BAA weight=1.
1821 Feb 04 UT 17:30 "a light shone out on the Moon -- a bright
point of light in the lunar crater Aristarchus, which was
in the dark at the time. It was seen, upon the 4th and the 7th
of February, by Capt. Kater (An. Reg., 1821-689); and upon the
5th by Dr. Olbers (Mems. R.A.S., 1-159).(25) It was a light like
a star, and was seen again, May 4th and 6th, by the Rev. M. Ward
and by Francis Bailey (Mems. R.A.S., 1-159).(26) At Cape Town,
nights of Nov. 28th and 29th, 1821, again a star-like light was
seen upon the Moon (Phil. Trans., 112-237).(27). ALPO/BAA
weight=2.
On 1882 Jul 17 (UT not given) J.G. Jackson (6" reflector) observed a perculiar cloud on the western edge of mare Crisium
which had a feathery appearance. This reference comes from
Corliss. According to the Cameron catalog it had a similar misty
aspect to that seen by Jackson on May 22 (#232), but even
greater in extent of the mt. ranges it covered. (Old Moon is now
Moon's arms?). Cameron 1978 Catalog weight=3 and TLP ID No.=234.
ALPO/BAA weight=2.
In 1821 Feb 05 at UT18:00? Garding (Breman, Germany, x132) saw a cloudy
spot in Aristarchus crater. Olbers (Breman, Germany, x44 refractor)
though thought this description was due to the magnification used,
however they themselves did report a 6th magnitude star (Mems.
R.A.S., 1-159).(25). 3-4'in diameter. Browne (England) also saw the
event. The Cameron 1978 catalog ID=84 and weight=5. The ALPO/BAA
weight=4.
On 1968 Dec 23 at UT 01:30-01:56 Wick (Rapid City, SD, USA) noted
Aristarchus as 9-10-8th magnitude, dimming and brightening. Pulsating
was a pin point. 5-7 sec bluish-green at 01:36-01:56. Lehmann (Rapid
City, SD, USA) saw an increase near the centre at 01:56UT (Cameron says
confirmation?). At 02:00-02:30 UT Kohlenberger Fullerton, CA, USA) saw
Aristarchus B bright and prominent, 1/2 magnitude, gradually brighter
than before; then diminished 1, 1/2 magnitude. C. Harris (CA, USA) at
02:00-02:30UT saw gradual brightenings, 4-5sec to come up of whole
crater (Cameron Suggests confirmation).Schroter's valley was almost
same brightness but Aristarchus got brighter then dimmed. Cameron says
that these observations were during the Apollo 8 watch. The Cameron
1978 catalog ID=1108 and weight=5. The ALPO/BAA weight=4.
On 1987 Feb 02 at UT 00:15 D. Darling of Sun Prairre, WI, USA (12.5"
reflector x70, seeing=excellent and Transparemcy=4/10), saw Aristarchus
as the brightest feature in Earthshine glowing at about magnitude 5-6
with a sea-blue colour, against the darker background of Earthshine.
Cameron 2006 extension catalog ID=294 and weight=1. ALPO/BAA weight=1.
On 1987 Feb 02 at UT 00:15 D. Darling of Sun Prairre, WI, USA (12.5"
reflector x70, seeing=excellent and Transparemcy=4/10), saw Copernicus,
Delambra and Tycho ray looked like a glowing aurora streamer (confirmed
by photos from Ossola (of Switzerland). Copernicus brightness less than
Aristarchus, against the darker background of Earthshine. Cameron 2006
extension catalog ID=294 and weight=1. ALPO/BAA weight=1.
On 1987 Feb 02 at UT 00:15 D. Darling of Sun Prairre, WI, USA (12.5"
reflector x70, seeing=excellent and Transparemcy=4/10), saw Copernicus,
Delambra and Tycho ray looked like a glowing aurora streamer (confirmed
by photos from Ossola (of Switzerland). Delambra brightness less than
Aristarchus, against the darker background of Earthshine. Cameron 2006
extension catalog ID=294 and weight=1. ALPO/BAA weight=1.
On 1987 Feb 02 at UT 00:15 D. Darling of Sun Prairre, WI, USA
(12.5" reflector x70, seeing=excellent and Transparemcy=4/10),
saw Manilius glowing sea-blue in brightness, matching Menelaus in
brightness, but less than Aristarchus, against the darker
background of Earthshine. Cameron 2006 extension catalog ID=294
and weight=1. ALPO/BAA weight=1.
On 1987 Feb 02 at UT 00:15 D. Darling of Sun Prairre, WI, USA
(12.5" reflector x70, seeing=excellent and Transparemcy=4/10),
saw Manilius glowing sea-blue in brightness, matching Manilius in
brightness, but less than Aristarchus, against the darker
background of Earthshine. Cameron 2006 extension catalog ID=294
and weight=1. ALPO/BAA weight=1.
On 1987 Feb 02 at UT 00:15 D. Darling of Sun Prairre, WI, USA (12.5"
reflector x70, seeing=excellent and Transparemcy=4/10), saw Copernicus,
Delambra and Tycho ray looked like a glowing aurora streamer (confirmed
by photos from Ossola (of Switzerland). Tycho brightness less than
Aristarchus, against the darker background of Earthshine. Cameron 2006
extension catalog ID=294 and weight=1. ALPO/BAA weight=1.
On 1968 Dec 23 at UT 02:00-02:30 C. Harris (CA, USA) saw the south east
quadrant of Grimaldi brighten up 3-4 times on "rim & area elliptical
out SE". This was confirmed by Wilmington. No changes seen in India
at UT 14:00-16:00 by Sinvhal (Kodai Kanal, India) - though cameron does
not state excatly whether they were looking at Grimaldi, Aristarchus or
elsewhere on the Moon. The cameron 1978 catalog ID=1108 and weight=5.
The ALPO/BAA weight=3.
On 1964 Mar 26 at UT 23:58 Lecuona (Madison, New Jersey, USA, x225,
seeing = good) observed a sudden red low on the south west rim of
Aristarchus in the dark part of the Moon. The Cameron 1978 catalog ID=
803 and weight=3. The ALPO/BAA weight=3.
On 1821 Feb 06 at UT 18:00-19:00 At 18:00UT H. Kater (London, UK),
Olbers (Bremen, Germany), Browne (UK), commented that Aristarchus
looked like a 6-7th magnitude lumninous star, some 3-4' in diameter. At
19:00UT Aristarchus looked like a cloudy spot according to Ward and
Bailley (England, large telescope, x80). The Cameron 1978 catalog ID=
84-85 and the weight=5. The ALPO/BAA weight=3.
On 1961 Apr 19 at UT 20:00? an unknown observer reported in Aristarchus
a light flash for 15 seconds. Cameron suspects a meteor? The Cameron
1978 catalog ID=735 and weight=1. The ALPO/BAA weight=2.
On 1981 Apr 08 at UT 21:45-22:00 P.W. Foley (Kent, UK, 12" reflector)
found Aristarchus to be very bright, blue and variable. For example a
CED brightness measurement at 21:45 was 0.5 and at 22:00 was 0.2. He
also saw some white flashes on the eastern wall lasting each 2 sec in
duration, Cameron 2006 catalog ID=128 and weight=1. ALPO/BAA weight=1.
On 1981 Jun 06 at UT 21:30 G.W. Amery (Reading, UK, 10" reflector,
seeing III) observed that Aristarchus was "quite distinctly even in
twilight & Moon's altitude. Remaining dark areas were just visible".
The 2006 Cameron catalog ID=142 and weight=0. The ALPO/BAA weight=1.
On 1987 Feb 03 at 00:30UT J. de Carlo (Little Falls, NJ, USA, 4.5"
refractor, x260, x350, seeing-very good) observed a very bright yellow
light in the centre of Mare Crisium (near a raised crevice), almost
like a "gigantic nuclear bomb explosion "which expanded (to 1/8th the
diameter of mare Crisium) and then reduced in size. The flare fickered
at a rate of 1/10s. apparently the edge of this TLP looked rough,
almost like emittyed debris. The TLP was fixed in position on the Moon.
TLP confirmed by observer's father. The Cameron 2006 catalog ID=295 and
the weight=3. the ALPO/BAA weight=2.
On 2002 Feb 26th at 18:41:25 UT Michael Hather saw, on the limits of
vision, a brief magnitude 7 white flash about 300 km north west of
Aristarchus, in Earthshine. He was using a 120 mm refractor. No
other observers were observing at this time.
In 1797 Mar 02 at UT 19:00? Caroche (France?) observed "a volcano on
the Moon near Promontorium Heraclides". The Cameron 1978 catalog ID=76
and the weight=2. The ALPO/BAA weight=2.
Observer: Fallows Observing site: Cape Town, South Africa. Cameron 1978
catalog describes the event as: Bright 8th magnitude star-like point.
A more detailed account is as follows: Early in the year 1821 -- and a
light shone out on the moon -- a bright point of light in the lunar
crater Aristarchus, which was in the dark at the time. It was seen,
upon the 4th and the 7th of February, by Capt. Kater (An. Reg., 1821-
689); and upon the 5th by Dr. Olbers (Mems. R.A.S., 1-159).(25) It was
a light like a star, and was seen again, May 4th and 6th, by the Rev.
M. Ward and by Francis Bailey (Mems. R.A.S., 1-159).(26) At Cape Town,
nights of Nov. 28th and 29th, 1821, again a star-like light was seen
upon the moon (Phil. Trans., 112-237).(27).Cameron 1978 catalog ID=91
and weight=3. ALPO/BAA weight=2.
On 1964 Mar 18 at UT00:59 Earl and his brother (St Petersburg, FL, USA,
2.4" refractor, x35. seeing = very good) observed flashes in
Aristarchus crater. The Cameron 1978 catalog ID= and weight=2. The
ALPO/BAA weight=2.
Kepler In 1949 Feb 02 at UT 18:20-19:15 Y.W.I. Fisher (Brussels,
Belgium, 4" refractor) observed in Earthshine a white between
Kepler and Encke, in Earthshine. The glow began to fade at 18:50
and was gone by 19:15. The Cameron 1978 catalog ID=513 and the
weight=2. The ALPO/BAA weight=2.
On 1979 Jun 30 at UT0246-0319 D. & D. Darling (Sun Praire, WL, USA,
12.5" reflector, 80x and 150x, S=5/10). A weak blue glow seen in the
Aristarchus region. It was fainter than that in May 1979 but was
relatively easier to see. There was one "streamer" going south and
another to the south west, and then smaller ones within the crater.
These streamers started to fade from view at 03:04UT and the blow glow
changed to a blow spot and Aristarchus became normal by 03:19 UT.
Cameron 2006 catalog ID=56 and weight=1. ALPO/BAA weight=2.
Nebulous appearance. Cameron 1978 catalog assigns
an ID No. of 12 and a weight of 1. ALPO/BAA catalog
assigns a weight of 1.
On 1867 Apr 09 at UT 19:30-21:00 Elger(Liverpool? UK, 4"? aperture
telescope) observed that Aristarchus was shining like a 7th magnitude
star-like point, becoming fainter, almost extinguished at 9PM. He had
seen lights before but never so strong. The Cameron 1978 catalog ID=151
and he weight=4. The ALPO/BAA weight=2.
On 1969 Nov 11/12 at UT23:30-01:00 Mitchell, Celis and Marti (Paso
Hondo, Chile, 10" refractor, x96, 4" refractor, x80, 3" refractor, x60,
seeing = excellent) observed Aristarchus with a blue centre and
irregular form, alternating with normal aspects. Some opacity
(independent confirmation?) - Apollo 12 watch. The Cameron 1978 catalog
ID=1208 and weight=3. The ALPO/BAA weight=3.
On 1983 May 17 at UT20:13-20:40 P. Madej (Huddersfield, UK, x38 and
x63) found that Aristarchus was normal in appearance, but at 20:19 a
blood red disk was seen as bright as a 6th magnitude star. The colour
did not vary but the brightness changed from 4 to 8 over a 1.5-3min
period, on the south west wall. Foley (Kent, UK, 12" reflector)observed
Aristarchus at 22:10 and noted that it had the same rose-violet colour
as had been seen by him a day earlier. The Cameron 2006 catalog ID=220
and the weight=0. The ALPO/BAA weight=3.
Censorinus 1959 Sep 08 UT 22:45-23:50 Observed by Jean Nicolini
(Brazil) "Much brighter than Proclus" NASA catalog weight=2.
NASA catalog ID #721. ALPO/BAA weight=2.
Theophilus 1964 May 18 UTC 01:05-01:15 Observed by Dieke (Baltimore,
MD, USA, 6" refractor, x125) "Crescent of crsimson color on SW between
rim & flor. Was not present at 0500, nor did it reappear from 0115 to
0245h" NASA catalog weight=3 (average). NASA catalog ID #812.
Theophilus 1966 Jan 28 UTC 01:24-03:45 Observed by Cross &
Ariola (Whittier, CA, USA, 19" reflector, x300, S=6-4, T=4, "3
red patches appearing and dissappearing at different times.
Obscurred at sunrise on it. Later, red patch appeared on the
floor." NASA catalog weight=5. NASA catalog ID #920. ALPO/BAA
weight=3.
Ross D 1967 Dec 8 UT 02:30-02:40 Observer: Harris (Tucson?,
AZ?), colourless bright area SW of Ross D with repeated
condensations that appeared then dissipated in thirty seconds to
a minute. ALPO/BAA weight=1.
Proclus 2003 February 8,2003 UTC 02:09-03:07 Observed by Gray
(Winnemucca, NV, USA, 152mm F9 refractor Seeing 6-7, Transparency 6
305x) "Blinked Proclus with Wratten Red 25 and Blue 38A filters.
Features seen through the red filter were basically seen with the same
degree of clarity as in white light, in the case of sunlit walls, maybe
a little bit better in the red. With the Blue 38A filter only the
brightest part of the crater walls (north end) was visible-the rest of
Proclus was dark shadow. At 3:07UT I compared the brightest parts of
Proclus with Censorinus and Dionysius. The brightest parts of Proclus
and Dionysius were comparable. Censorinus was much less bright than
either of the above craters-the halo and crater were much faded over
its usual brilliant appearance. Both Censorinus and Censorinus A
were visible as distinct craters at 114x. The black shadow covering the
east 40% of Proclus last night had broken up into three patches
separated from each other by lighter bands. These were confined to
the east crater wall. Only the central patch was black, the other two
were considerably lighter. Running along the southwest edge of the
crater floor of the crater floor appeared to be a hill to the north
of which was a less elevated plateau. As the observing period
progressed part of the brilliantly illuminated north crater wall
developed a darker area which gradually became more prominent. As
the sun is getting higher I would expect shadows and dark areas to
diminish-what was happening here is unknown. However, this is not an
unusual event for this part of Proclus". The ALPO/BAA weight=2.
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.
Linne 1867 Aug 06 UT 21:00? Observed by Buckingham (England?)
"Crater in darkness, he saw a "rising oval spot". Other obs.
saw it as a triang. Bold black spot pointing to earth, slowly
diffused white & drift of white on slope of pyramid. (indep.
confirmation?)" NASA catalog weight=5 and catalog ID #155.
ALPO/BAA weight=2.
Near Ross D (23E, 12N) 1964 May 18 UT 03:54-04:53 Observed by Harris,
Cross et al. (Whittler, CA, USA, 19" relector x720, 8" reflector x322,
S=G) "White gas obscuration. Moved 20mph, decreased in extent. Phenom.
repeated. Drawing." NASA catalog weight=5 (very high). NASA catalog ID
811.
White spot near Censorinus 1966 Dec 18 UT 23:40-23:46 Observed by Enie
(Pittsburgh, Pennsylvania, USA, 8" reflector x100, S=G) "Attention
drawn to pink color in this usually white patch. Brightened to a light
reddish tinge for 2 mins, then faded back to pink, then to white,
Sketch." NASA catalog weight=4 (high). NASA catalog ID #1002.
Limb North? 1881 Jul 04 UT 00:30 Observed by Several observers
(Lebanon, CT, USA, naked eye, alt @ 10 deg) "2 pyramidal protruberances
on upper limb (dark?). Points were darker than rest of moon's face then
slowly faded away (atm ? moon very low)" NASA catalog weight=? NASA
catalog ID #223.
Alphonsus 1965 Apr 08 UTC 20:00? Observed by Hoffman (Germany?) "Saw
variable shining bright lights". NASA catalog weight=1 (very low). NASA
catalog ID #873.
Aristarchus 1965 Apr 08 UTC 20:00? Observed by Hoffman (Germany?) "Saw
variable shining bright lights". NASA catalog weight=1 (very low). NASA
catalog ID #873.
Censorinus 1965 Apr 08 UTC 20:00? Observed by Hopmann (Czecholovakia?)
"Green flash or brightening (date correct ? written 8-4-65. First taken
as American convention, thus as Aug. 4, but now think it was in
European convention of day first then month)." NASA catalog weight=2
(low). NASA catalog ID #873a.
Hyginius N 1965 Apr 08 UTC 20:00? Observed by Hoffman (Germany?) "Saw
variable shining bright lights". NASA catalog weight=1 (very low). NASA
catalog ID #873.
Linne 1965 Apr 08 UTC 20:00? Observed by Hoffman (Germany?) "Saw
variable shining bright lights". NASA catalog weight=1 (very low). NASA
catalog ID #873.
Proclus 1965 Apr 08 UTC 20:00? Observed by Hoffman (Germany?) "Saw
variable shining bright lights". NASA catalog weight=1 (very low). NASA
catalog ID #873.
On 1987 Nov 28 at UT 04:16-04:45 D. Louderback (South Bend, WI, USA,
3"reflector, x150, S=E) observed that the Promontorium Agarum plateau
was rather dull and grayish - usually it was "tannish" "even > sunlit
areas, & twin craters at his point A which are always > spots on
plateau. At 0420 whole plateau sank into complete darkness, hard to
distinguish from mare plain. albedo dropped to 5 from 6.8 reading.
Nearby plain was normal 5 so phenomena had not spread to it. At 0424
Cape started to reappear to albedo 6 until 0445, when it returned to
normal, but not sharply defined - like through haze. Detail better in
red than in blue filter, sketches. The Cameron 2006 catalog ID=315 and
the weight=4. The ALPO/BAA weight=3.
In 1878 Oct 03 at UT 20:00 an Unknown observer noted that Hyginus Nova
had the most conspicuous of all appearances, and there was no trace of
it on 1878 Oct 04. The Cameron 1978 catalog ID=201 and weight=3. The
ALPO/BAA weight=2.
Mare Crisium 1989 Jan 14 UTC 19:15 Observed by Hedley-Robinson (Devon,
UK, 5" Coude, Antoniadi II seeing, x150) "Floor blinks indicating
colour - used a Moon blink device". 2 areas of the floor were affected,
The first one was on the far west of Mare Crisium, next to Proclus
crater. The second area was in the NNW, but outside the edge of the
mare. Other features elsewhere checked but gave no colour reaction.
Peters (UK) though did detect colour elsewhere, but his seeing was III-
IV. The Cameron 2006 catalog ID=344 and the weight=5. The ALPO/BAA
weight=3.
On 1989 Jan 14 at UT 19:15-19:30 M. Holmes (Rochdale, England,
UK) reported that Torricelli B was "dull & inconspicuous". The
Cameron 2006 catalog ID=344 and the weight=5. The ALPO/BAA
weight=1.
1987 Feb 06 UTC 02:35 Observed by Darling (Sun Praire, Wisconsin, USA,
12.5" Newtonian x342) "I was using a 12.5 f5 Newtonian reflector with a
9mm eyepiece and 2x Barlow with no filters. I had been observing other
features on the Moon when I had panned to the area where the sunrise
was taking place on Mount Piton. The mountain peak looked like a
shimmering block of ice with a phosphorescence luminescence cloud
around the peak. What was really interesting was the shaft of light
streaming across the Lunar Maria that appeared like a cone and it came
to a point near Mount Piton. The Mountain had the appearance of mother
of pearl and the luster or glow that surround the peak only lasted
about 20 minutes." The Cameron 2006 catalog ID=296 and gthe weight=4.
the ALPO/BAA weight=3.
Lubbock 1973 Nov 02 UT 22:10-23:59 Observed by R.Hill
(Greensboro, N. Carolina, USA) "Color in crater changed fro.
gray to brownish -- strong enough change to be noted. Never saw
anything like this 7 yrs. of observing". NASA catalog weight=3.
NASA catalog ID #1379. ALPO/BAA weight=3.
On 1978 May 14 at UT21:30-22:52 P.W. Foley (Kent, UK, 12" reflector,
seeing II and transparency excellent, no spurious colour) observed
Aristarchus to be very bright in Earthshine and bluish. The CED
brightness measuring device gave a very bright reading of 0.9, the
brightest he had ever seen ir before was 0.3. Cameron 2006 catalog ID=
29 and weight=3. ALPO/BAA weight=2.
On 1867 Apr 12 at UT 19:30-21:00 Elger (Liverpool? UK, 4" aperture
telescope) observed Aristarchus in Earthshine "grew fainter 7th mag.
star; much fainter in last 15 min. & barely perceptible at 9PM. Had
seen something similar on former occ." The Cameron 1978 catalog ID=152
and the weight=4. The ALPO/BAA weight=2.
Plato 1964 May 20 UT 01:00-01:30 Observed by Bartlett (Baltimore, MD,
USA, 2.4" refractor x117, S=6, T=5). "Orange-red color on W. wall.
Vivid" NASA catalof weight=4 (high). NASA catalog ID #813.
Proclus 1972 Aug 17 UT 20:05-21:10 Observed by Haiduk (13.25E, 52.5N,
60mm refractor, S=1, T=3) "Well visible bright area at the NE wall, end
of event uncertain for seeing became poor" Hilbrecht & Kuveler Moon &
Planets (1984) Vol 30, pp53-61.
In 1878 Oct 04 at UT 20:00 an Unknown observer noted that Hyginus Nova
could not be seen, whereas the night before the crater had the most
conspicuous of all appearances. The Cameron 1978 catalog ID=201 and
weight=3. The ALPO/BAA weight=2.
Williams of the UK, on 1892 Sep 20 at Moon's age 8.4 days, noticed a
spot that had been seen on the 21st and 23rd of the same year with
abnormal brightness. The spot was near Picard. Williams comments the
spot was "nearly as large but a little fainter than Picard, This
observation was reported in the Astronomical Register of the Royal
Astronomical Society and is not included in the Cameron catalogs. It is
one of many measurements of the brightness of this spot for different
illumination angles and is one of three outlying brightness points
spotted on a graph by Willaims. The ALPO/BAA weight=3.
Eratosthenes 1976 Jun 06 UT 02:01 Observed by Bartlett
(Baltimore, MD, USA, 3" reflector x54-300, S=5, T=5) "Bowel was
full of shadow but a small 5 deg bright spot on NE floor.
Nothing seen in 1975 at nearly same col. but shadow was deeper."
NASA catalog weight=4 (high). NASA catalog ID #1432.
On 1916 Sep 05 at UT 19:30 Markov (Russia) observed in Plato light on
shadow of the bands at the bottom of the crater. The Cameron 1978
catalog ID=364 and weight=3. The ALPO/BAA weight=2.
Plato 1925 Jun 20 UT 20:00? Observed by Markov (Russia) "Light
bands in bottom seen in shadow & did not seem to be elevations.
These have been seen 5X from 1913-1922." NASA catalog weight=3.
NASA catalog ID #391. ALPO/BAA weight=2.
Alphonsus 1966 Apr 28 UT 21:58 Observed by Smith (England, 10"
reflector) and Corralitos Observatory (Organ Pass, NM, USA, 24"
reflector+Moon Blink) "Reddish patches, (not confirmed at Corralitos
with MB tho they give feature as Gassendi in their report)." NASA
catalog weight=2. NASA catalog ID #930. ALPO/BAA weight=1.
On 1969 Nov 18 at UT 00:30-02:30 W. Cameron (Greenbelt, MD, USA, 12"
reflector, x80 and x320) using a low power eyepiece, observed that
bright craters (but not all of them) "glittered like diamonds". These
craters were several on the terminator, Proclus, Censorinus, Manillius,
Menelaus and Dionysius. The glitter effect was on the west wall crest
-- like stars. Higher power revealed these areas to be bright but not
star-like (nor glittering). The Cameron 1978 catalog ID=1212 and the
weight=1. The ALPO/BAA weight=1.
On 2009 Nov 25 UT18:42-21:03 P.Abel, T.Little and C.North (Selsey, UK,
15" reflector, seeing II-III, transparency very good), all saw visually
a brownish tinge on the north west rim of Eratosthenes crater. P.Abel
made a sketch and T.Little took some high resolution CCD images, some
of which were through coloured filters. Checks were made for spurious
colour, but none was seen elsewhere on the Moon. The eyepiece was
changed but this made no difference. M.C.Cook (Mundesley) was observing
with a smaller scope at the same time, but saw no colour, however
observing conditions were worse. W.Leatherbarrow (Sheffield, UK) was
observing with a instrumenet mid way in size, and saw a brownish tinge
in the NW rim area, but saw a similar colour elsewhere and put this
down to spurious colour. Normally multiple observers seeing the same
thing would result in a weight of 4, however as this was only observers
at Selsey and some of the evidence contradicts, I am allocating an
ALPO/BAA weight=3.
On 1982 Jun 30 at UT 02:05-02:15 Marco Petek (Porto Alegre,
Brazil) found that the region between Eratosthenes and Bode
(7W, 13N) looked like it had a darkening (cloud?) that had
even darker points inside. The Cameron 2006 catalog ID=172
and weight=3. The ALPO/BAA weight=2.
On 1960 Aug? 01 at UT 22:00? an unknown observer detected that Vitello
was illuminated -it should have been in shadow? Cameron says that if
several days before sunrise then the date could have been July through
to December, with August 1st most likely, and ancilary data is
therefore given for this date. The Cameron 1978 catalog ID=729 and
weight=1. The ALPO/BAA weight=1.
2007 Oct 20 UT 17:31 A.Pink (Basinkstoke, UK) images a flash on
the dark size of the Moon near to Vitello. The
ALPO/BAA weight=1.
On 1989 Jan 16 at UT 20:00 G. North (Herstmonceux, UK, 30" reflector)
observed Toricelli B to change in brightness and found colour in it. A
10 minute exposure spectrum was taken (Cameron does not have
information on whether anything unusual was recoeded) before clouds
obscured the Moon. Normally a 30 minute exposure would be needed. The
Cameron 2006 catalog ID=345 and the weight=3. The ALPO/BAA weight=3.
Plato 1979 Apr 06 UT 18:00-21:00 Observed by Crick (Belgium, seeing II-
III) Part of floor darker than normal and obscuration on inner west
wall - the effect did not change during the observation. Drawing made.
Cameron 2006 catalog ID=49 and weight=3. ALPO-BAA weight=2.
Plato 1878 Oct 05 UT 21:40 Observed by Klein (Cologne, Germany, 6?"
refractor) "Fog in W. part of crater. Faint shimmer like thin white
cloud" NASA catalog weight=4 (high). NASA catalog ID #203.
On 1982 Mar 04 at UT 20:00 M.C. Cook (Frimley, UK) found Censorinus
(4.6) to be brighter than Proclus (4.0) in white light. The Cameron
2006 catalog ID=164 and weight=4. The ALPO/BAA weight=1.
On 1982 Mar 04 at UT 20:00 M.C. Cook (Frimley, UK) found Proclus
(4.0) to be fainter than Censorinus (4.6) in white light. The
Cameron 2006 catalog ID=164 and weight=4. The ALPO/BAA weight=2.
Aristillus 1939 Sep 23 UT 01:00 Observed by Haas? (New Mexico?, USA,
12" reflector?) "Dark area in W. part of floor had I=1.3. comp with I=
1.3, 3.7, 4.0 in #450, 454, & 459, respectively. (albedos disagree at
same phases, so are real anomalies). (normal here?)." NASA catalog
weight=4 (high). NASA catalog ID #461.
On 1987 Mar 09 at UT20:00 M. Mobberley (Sussex, UK) obtained some video
of Mons Pico - apparently these show the mountain with a puzzling
appearance (not sure whether it was the observer who claimed this or
some one who analyzed the tape). The Cameron 2006 catalog ID=300 and
the weight=5. ALPO/BAA=1.
Alphonsus 1966 Apr 20 UT 22:28 Observed by Smith (Nottingham,
England, 10" reflector) Reddish patch possibly detected on SE
flank of central peaks, but more dubious than that from 28th
Apr. ALPO/BAA weight=1.
On 1936 Oct 25 at 01:35 UT W. Haas (Alliance, OH, USA, 12"
reflector) saw small bright spots on the floor of Eratosthenes,
(Pickering's atlas 9A, col. 30deg, shows no spots - according to
Cameron). Cameron 1978 catalog TLP=417 and weight=4. ALPO/BAA
weight=1.
Plato 1870 May 10 UTC 22:00 Observed by Birt (England) "Extraordinary
display of lights. Says not effect of sunlight" NASA catalog weight=4
(high). NASA catalog ID #167.
P. Moore at 21:10 found the southern wall (and ontothe southern floor)
of the crater to be indistinct. Elsewhere in the crater everything was
sharp. The effect was still seen at 21:42UT, but less strong. A check
was made for colour with aq Moonblink device, but none was seen. There
was still a trace of this effect at 21:44UT, although detail was now
becoming visible. By 21:48UT vertical streaks were seen crossing
the floor from the obscuration area and these were more visible in the
red filter and not in the blue. Cameron comments that undefined patches
on the floor of Plato are not normal. By 21:55UT some craterlets on the
floor started to become visible and the TLP for Moore ended by UT22:23.
P.Foley was alerted by Moore and saw a "amssive dense obsecuration
on the south wall, south floor and south outer glacis to the Mare".
Foley noted that by 21:50UT the effect was fading and finished by
22:03UT. Foley reported an orange translucent haze covering half of the
floor, but floor craterlets could be seen on and off - however his
atmospheric seeing conditions were IV. At 22:00 UT Foley reported the
floor close to the north wall to be "milky or misty". No detail was
visible at 21:15UT and variability in the floor continued until
23:10UT. Hedly-Robinson was aleted at 21:35UT and found no difference
between red and blue views of the area, however he did find that the
south rim was indistinct although this effect had lessened by 22:00 UT
and was normal by 22:17UT. M. Mobberly saw a white spot on the floor at
21:20 UT, whereas he normally would have expected to see craterlets.
Mobberly was alerted at 21:40 UT and took some colour photos. He also
made sketches that showed variability in the floor and dark lines and
patches in the north west corner. However the altitude of the Moon was
low. Cameron mentions that two of the photos show loss of detail at the
south wall and beyond.and also a change in the floor markings.The north
wall at 21:50UT was strangely reddish (didn't think this was spurious
colour). The rest of the wall was sharp at 22:20UT through a yellow
filter. Large bright patch in the centre and rest of the floor was
apparently of the same shading as Mare Imbrium. The above notes are
based upon the Cameron 2006 catalog extension TLP ID 145 and weight=4.
ALPO/BAA weight=3.
On 1964 Jan 24 at 20:00? Scarfe (UK) obtained spactra showing
luminescence? The Cameron 1978 catalog ID=796 and weight=5. The
ALPO/BAA weight=3.
C. Brook of Plymouth UK, using a 4" refractor x216, noticed at UT 20:10
dark patches coming and going (in terms of visibility) on the floor of
Plato. Occasional views of the central cratelet (seen as a white spot)
were glimpsed. The dark patches seen lasted about 1-2 seconds before
fading out during each visibility cycle. Teneriff Mountains were
checked but no sign of seeing effects that might explain the dark floor
patches. By 20:26UT the dark patch effect was fading and by 20:31UT
floor detail was visible. Observations ceased at UT 20:34. Seeing
conditions were II and the Moon was at a high altitude. Other observers
were alerted but came on-line after the effect had finished. ALPO/BAA
weight=2.
At approximately 18:43UT observer noticed that Censorinus, and
its bright apron, appeared particularly brighter than normal.
There was some spurious colour present - but just a redness
along the southernmost extent of the apron visible; could not
detect any blue along the northern edge however, he did do not
suspect the colour to be anomalous. A re-examination at 18:51UT
revealed that the crater had faded and was seen to fade visibly
in real time to normal levels (over about a minute) by 18:53UT.
Other features remained constant and so too did the apparent
spurious colour.
Eratosthenes 1968 Nov 01 UT 01:50-02:06 Observed by Chilton
(Hamilton, Canada, 12" reflector, 300x) "Red glow in the crater.
Weak blink beyond ESE (IAU?) wall. Visually, area would not
focus & gave impression of fog cascading down slope, but no
motion was vis. (Moore has misprint in time in his cat.
extension -- should be 0150-0206)." NASA catalog weight=3. NASA
catalog ID 1106. ALPO/BAA weight=3.
Gassendi 1966 Apr 30 UT 21:30-23:28 Observed by Sartory,
Ringsdore (England, 8.5" reflector, S=E), Moore, Moseley
(Armagh, Northern Ireland, 10" refractor, S=VG), Coralitos
Observatory (Organ Pass, NM, USA, 24" reflector, Moon Blink)
"English moon blink system detected red spots with vis.
confirm. Ringsdore says no color but saw obscuration. (LRL
60-in photos showed nothing unusual by my casual inspection).
Indep. confirm. (even E. wall was in dark). Corralitos did
not confirm by MB." N.B. event had finished by the time
Corralitos came on-line. NASA catalog weight=5. NASA catalog
ID #931. ALPO/BAA weight=4.
On 2011 Oct 07 UT 21:45 Gassendi observed by P. Grego (St
Dennis, UK,300m Newtonian, x150, seeing III, intermittent cloud)
- whilst producing some sketches of the crater - observer
noticed a faint point of light inside the shadow filled
interior, two thirds of the way out from where the central
peaks should have been, towards the SE rim. Some uncertainty in
being sure about this spot and after interuption by cloud it was
not seen later that evening. ALPO/BAA weight=1 to refelct
uncertainty of observer.
Bulialdus 1979 Aug 03 UT 21:36-21:48 Observed by Cook (Frimley, UK,
seeing III, Moonblink device) "Bullialdus eastern side of the crater
looked brighter in red i.e. rim and exterior, extending to the south
slightly and this reddish areas was slightly hazy. At 21:41 it clouded
over but at 21:47-21:48 it cleared briefly and effect was noted again.
Also Darney appeared very visible through the red filter. Probably
spurious colour as the Moon was -18 deg in declination and the whole
Moon had a slight brownish tinge" ALPO/BAA weight=1.
Darney observed by Cook (Frimley, UK, seeing III, Moonblink device)
See TLP report for Bullialdus (eastern side) concerning reddish
areas. At 21:41 it clouded over but at 21:47-21:48 it
cleared briefly and the effect was noted on Bulialdus again.
Also Darney appeared very visible through the red filter.
Probably both effects were spurious colour related as the Moon
was -18 deg in declination and the whole Moon had a slight
brownish tinge. An ALPO/BAA weight of 1 is assigned to this TLP."
Plato 1870 May 11 UTC 22:00 Observed by Birt (England) "Extraordinary
display of lights. Says not effect of sunlight" NASA catalog weight=4
(high). NASA catalog ID #167.
Gassendi 1976 Oct 04 UT 20:55-20:58 Observed by Robinson (Devon,
England) - observer noted that the east outside wall was bright in red
and normal in blue. Note that the Moon was 30 deg above the horizon at
the time of the observation. The crater returned to normal at 20:58.
Also seen by Moore (Selsey, UK) and Foley (Kent, UK). At 21:25-21:50 D.
Sims (Dawlish, UK, 25cm reflector, x300, seeing IV and some cloud at
times) noticed a possible obscuration over the southern part of
Gassendi. He had been observing earlier at 18:40-19:30 but had not
detected a TLP in Gassendi then. 22:11UT Robinson notices that the spot
outside the east wall is again bright in red., though by 22:25 it had
faded and was gone by 22:28UT. The Cameron 1978 catalog further
quotes: "Vivid red spots & general red color seen around rim by 2 obs.
At 2209h blood red small area was seen. 1 h later the most westerly
(IAU?) of the peaks had become hazy white all other areas were sharp.
(Indep. confirm.)." Cameron 1978 catalog weight=5 and catalog ID #1454.
The ALPO/BAA weight=3.
On 1977 Apr 29 at UT21:40-23:20 an unknown UK observer reported a TLP
in Gassendi crater. The following are reports by observers attempting
to confirm activity: J.W. Napper (Didcot, UK, 30cm reflector, x287,
Wratten 25 and 44a, conditions clear 5+) received a telephone alert
call at 22:00 but the sky was cloudy until 22:30. An initial look
revealed nothing unusual, then at 22:54 he observed a colour blink just
inside the north wall, appearing bright in red and normal in blue or
white light. No loss of detail seen and the effect lasted only 2
minutes. A sketch was made. However the observer stresses that the very
bad seeing casts some doubt on this observation. L. Fitton observed
using a 8.5" reflector, with Moon blink device at x200, seeing was I-
II. All areas negative, including Gassindi from 21:40-21:55 and again
22;00-22:25 and finally 22:50-23:30 negative. Mike Brown (Huntington,
York, UK, 30cm reflector, x220 and x350, seeing 3-4/5, and transparency
5/5) - observed from 22:00-23:25UT no colour seen, nor obsecuration,
all filters negative, despite seeing a lot of fine setail inside this
crater.
On 1980 Jul 23 at UT22:00 G.W. Amery (Reading, UK, 8" reflector, x144
and x207, seeing=III-V and transparency=fair) found that the interior
shadow was a light grey. BAA TLP coordinator (Foley) suggests that this
was light reflecting from the illuminated walls? Cameron 2006 catalog
TLP ID=102 and weight=1. ALPO/BAA weight=2.
Aristarchus visible just past terminator. West wall was
brighter than normal. Bright flash seen in/on NW wall -
apparently in the same place as Pedler's May 17th sketch.
Cameron 2006 extension catalog ID=146 and weight=4.
Observed by M. Price of Camberley, Surrey, UK with
a 6" reflector and a Moon Blink device. Seeing=III.
Plato 1981 Jun 13 UT 20:48-21:08 Observed by Price (Camberley, England,
152mm reflector, seeing III) Possible Moon blink (red) seen
on north wall. Also the craterlets on the floor could be seen
despite the observing conditions not being optimal. BAA Lunar Section
observation. Cameron 2006 extension catalog ID=146 and weight=4.
ALPO/BAA weight=3.
On 1984 Jan 14 at UT 20:00 P. Moore (Selsey, UK) observed that
Aristarchus was brighter than it normally is at sunrise. No
quantitative measurements were made though. The Cameron 2006 catalog
ID=238 and weight=3. The ALPO/BAA weight=1.
Observer noted a bright spot on the interior west wall that seemed
brighter than what they would have expected. unfortunately the precise
time of this observation was not recorded so the moon-rise and
midnight UT values are used to place a limit on the time of
observation. Images by Shaw taken at UT 1754, 18:45 and 23:13
do not exhibit the effect.
Gassendi 1966 May 01 UT 19:30-00:21 Observed by Sartory (UK,
8.5" reflector, x500, S=G), Moore, Moseley (Northern Ireland,
12.5" reflector x350, S=E) and by Corralitos Observatory
(Organ Pass, NM, USA, 24" reflector + moon blink) "Eng.
moonblink & obscuration, also vis. confirm (Moore & Moseley
alerted by Sartory. Corralitos MB did not confirm. - but they
may not have been observing at the ame time?)." NASA catalog
weight=5. NASA catalog ID #932. ALPO/BAA weight=4.
On 1978 May 18 at UT20:45-21:53 J.D. Cook (Frimley, UK, 12"
reflector, x240) observed Promitorium Laplace to have
visually a brown colour - though no Moon Blink (red and blue
filters) effect was detected. Cameron comments that this is
probably a subjective effect - also others have reported
something similar at times. The Cameron 2006 catalog ID=30
and weight=3. The ALPO/BAA weight=1.
M. Cook of Frimley, UK observed a brightening of the crater during
this observing session. The cameron 2006 extended catalog ID=346 and
weight=3. ALPO/BAA weight=2.
Plato 1998 Jul 05 P. Moore (Selsey, UK, 15" reflector, x200-
x400, seeing II/III) comments that he is puzzled why the floor
of Plato, which is light gray in shade, looks completely blank
tonight. The ALPO/BAA weight=1.
On 1980 Jul 24 at UT02:00 F. Graham (East Pittsburgh, PA, USA, 6"
reflector) took some photos (albeit out of focus) that showed a bright
spot on the west rim. Cameron comments that this spot was sharp
compared to the rest of the photograph, so was probably a photographic
artifact. The effect was not seen in the finder scope. The Cameron 2006
catalog ID=103 and weight=2. The ALPO/BAA weight=1.
Gassendi 1939 Sep 25 UT 01:30 Observed by Haas (New Mexico? 12"
reflector?) "NE part pf c.p. had I=9.4 comp. with I=6.4 (normal? in #
458. under similar obs. cond. (& phase. thus real diff.)" NASA catalog
weight=4 (high). NASA catalog ID #462.
Aristarchus 1966 May 01 UT 21:55-22:45 Observed by Paterson,
Brown, Sartory, Ringsdore (England, 12" reflector x252 for the
former and 8.5"? reflector for the latter) "Eng. moon blink
system detected red spots with vis. by all but Ringsdore. Brown
saw intense white spot NW of crater wall" NASA catalog weight=5.
NASA catalog ID 933. ALPO/BAA weight=4.
Gassendi 1967 Mar 22 UTC 19:39-19:43 Observed by Mosely (Armagh, N.
Ireland, 10" refractor, x360) "Red color & blink strongly suspected
in small area centred on junction of 3 clefts 1/2 way from c.p. &
ESE wall. Well-defined & did not note change during obs. period.
Clouds terminated obs. till 2120 when it was not seen." NASA
catalog weight=3 (average). NASA catalog ID #1018.
On 1989 Sep 12 at UT00:58-02:25 D. Darling (Sun Praire, WI, USA, 12.5"
reflector, x159, S=7/10) observed similar light conditions to 1989 Jul
15. At 02:00 he observed pink on the south west wall of Aristarchus
crater. At 01:24UT the Aristarchus ray was yellowish, however the
entire Moon had a grey-yellow tinge of colour. Chromatic aberation was
observed at 01:56UT. By comparison Gassendi was checked and had no
colour. At 02:10 the crater wall of Aristarchus was unusual and was
quite different in appearance to rims of other craters. The cameron
2006 catalog ID=375 and the weight=1. The ALPO/BAA weight=1.
G. Ward (a lunar observer for 15 years) observed an area just south
west of Mersenius C to be blurred and in a greenish cloud. The green
colour was more like that of dead grass than one gets from a neon bulb.
The effect was seen from 04:50-04:57UT, but could have been going on
before it was first noted at 04:50-UT. Seeing was 6-7/10 4" Refractor
(2 element). refractor had been used hundreds of hours before (over a
10 year period) with no similar colour was seen. The observer checked
other areas but did not see any similar effects. They also rotated and
changed eyepieces, but this made no difference to the TLP. The TLP site
seen was picked up on an image taken earlier at 04:47UT by W. Bailley,
from Sewell, NJ, USA. Unfortunately the area concerned, a mountain on
the image, was saturated and so we cannot tell if a colour was present
there and the seeing was poor.
Aristarchus 1975 Oct 16 UT 20:00? Observed by Foley (Kent,
England, 12" reflector) "Deep blue-viol. spot in NW (IAU?)
interior corner." NASA catalog weight=3. NASA catalog ID #
1413. ALPO/BAA weight=1.
On 1889 May 11 at 22:00? UT an unknown observer saw an ink black spot
on the rampart of Gassendi. It had not been seen before ar at the next
lunation or indeed ever again. Cameron 1978 catalog ID=261 and
weight=3. ALPO/BAA weight=2.
Aristarchus 1971 Sep 01 UT 20:45-21:05 Observed by Neville,
Cunnington (Nottingham, UK, 4" refractor x180, altitude, low)
"Saw a bright glow, especially in E. wall (Confirm. but not
indep.?)" NASA catalog weight=3. NASA catalog ID #1310.
ALPO/BAA weight=1.
Aristarchus 1976 Sep 05/06 UT 18:45-01:35 Observed by Prout
(England?, 12" reflector, S=III-II), Foley (England, 12"
reflector), Moore and Spry (Sussex, England, 12" reflector)
"Viol. hue on crater on W. wall, especially NW corner seen by
Prout & 2 Foleys. Moore & Spry did not see color. All obs. noted
that the crater was dull Proclus 1970 Oct 12 UT 00:54 Observed by Bartlett (Baltimore, MD, USA,
4" reflector, 51x-181x) "Floor darkened to intensity 1.5 deg (albedo) &
c.p. became invis. Next day c.p. reappared & was 5 deg bright & 6deg
bright on 15th" NASA catalog weight=4 (high). NASA catalog ID #1277.
Observed by Bartlett (Baltimore, MD, USA, 5" reflector x180, S=1-5,
T=5) Pseudo peak visible within floor shadow at 03:10h" NASA catalog
weight=4 (high). NASA catalog ID #671. ALPO/BAA weight=3.
On 1965 May 12 at UT 19:10 E. Penzel (Rodewisch, East Germany) was
taking a sequence of images during the impact of the Soviet Lunik 5. He
detected a tens of km scale elongated cloud after the impact over a
duration of 9.5 minutes. However there are differences between the
images elsewhere on the Moon, possibly due to different exposures or
some other effects and it is not 100% sure that what he detected was
impact debris/cloud?. The ALPO/BAA weight=3.
On 1980 Jul 24 at UT22:10-22:55 P. Moore (Selsey, UK, 15" reflector,
x360 and x400) found an area just south east of the central peak (and
upto the wall) to be quite dark in blue light, but normal brightness in
red light or in white light. All other features were normal colour-
wise. At 22:55UT Tycho was normal again. Cameron 2006 catalog ID=103
and weight=4. ALPO/BAA weight=3.
Plato 1981 Jun 14 UT 21:58 Observed by Foley (Kent, England,
11.75" Newtonian, Seeing III, Transparency Good) "Obscuration
Seen" BAA Lunar Section Observation. ALPO/BAA weight=2.
Foley (Kent, UK) saw the west wall dull and stongly coloured. Moore
(Sussex, UK) saw the wall as normal. However Cameron points out that
Foley (Kent, UK) is a lot more Blue/UV sensitive than Moore. Mosely
(Covington, UK) at 22:10 UT noticed a brightening on the East wall and
at 01:10-01:25 UT suspected that the interior had a weak yellow-green
cast to it. Cook (Frimley, UK) states that orange colour was within the
interior crater, but green beyond the east rim at the 9 O'Clock and
the south east corner to floor blue/mauvre beyond the northern rim
NW/WSW. Foley sstates that orange and blue/mauvre might be spurious
colour, but green one cannot get this way. Cameon suggests chromatic
aberatons as a possibility but thinks that the observers concerned were
experienced enough to recognize this if it were the cause. Cameron 2006
catalog extension ID=239 and weight=0. Moore used a 15?" refletor and
Foley used a 12" refletor. Mosely experienced II seeing and good
transparency. Cook had III seeing and also good transparency. P.
Grego made an observation this night too. The
ALPO/BAA weight=2.
On 2016 Jul 17 UT 03:49 P.Zeller (ALPO, Indianapolis, IN, USA)
imaged a pseudo-peak with shadow on the floor of Herodotus,
however the image scale and quality of this colour image were
not great and the observer suspects that it might be an
imaging artefact. ALPO/BAA weight=1.
Cobra Head 1966 May 02 UT 20:05 Observed by Sartory (England, 8.5"
reflector x400) "Eng. moon blink detected red spots, seen visually
also". NASA catalog weight=4 (good). NASA catalog ID #934.
Gassendi 1966 May 02 UT 20:18-20:19 Observed by Sartory (England, 8.5"
reflector x400) "Eng. moon blink detected red spots, seen visually
also." NASA catalog weight=4 (high). NASA catalog ID #935.
P. Foley of Kent, UK, using a 12" reflector, seeing=III-II, noticed
that initially that the crater was pretty dull and that the floor
was a slate blue-gray in colour at 22:45UT. A noticeable green spot
inside the crater on the south east appeared at 22:25UT and vanished
at 00:50UT. Cameron notes that one doesn't get green with spurious
colour. Crater Extinction brightness measurements were made at 22:00 UT
(reading=2.8) and at 23:45UT (reading=3.7). The crater dropped in
brightness from 3.7 to 2.8 at 23:50UT and remained lower until 3.0 at
23:50-03:15 UT. A graph was produced and showed Proclus and Censorinus
at similar brightnesses, but Aristarchus variable. The Earthshine was
0.3. Cameron 2006 Extension catalog ID=31 and weight=5.
ALPO/BAA weight=3.
Cobra Head 1967 Mar 23 UT 18:40-20:47 Observed by Sartory,
Moore, Moseley (Farnham, England, 15" reflector (Sartory) seeing
very poor & 10" refractor in Armagh, N. Ireland (Moore & Mosely)
x360 - seeing Fair to Poor) "Red patch seen intermittently;
moon-blink from 1916-2047h. Position agreed with Sartory who
alerted them to Aris. area; checks on others were neg." NASA
catalog weight=5. NASA catalog ID 1020. Then Aristarchus 1967
Mar 23 UT 18:40-20:30, 21:30 by Marsh and Farrant (Cambridge,
England, 8" reflector, x330). "Suspected colour on SW (ast.)
wall. Farrant saw color in crater, completely independently,
(inform. suggests same phenom. as seen by Moore & Moseley tho
they said Cobra head). NASA Catalog weight=5. NASA catalog ID #
1021. ALPO/BAA weight=3.
Gassendi 1967 Mar 23 UTC 18:40-18:50 Observed by Sartory (Farnham,
England, 15" reflector) "Heavy blink on inner S. wall. Moved toward N.
at 1845, faded at 1850." NASA catalog weight=3 (average). NASA catalog
ID #1019.
D. Darling of (Sun Praire, WI, USA, using a 12.5" reflector at x150,
noticed a hint of red? colour on the south west rim of Aristarchus.
Brightness measurements were normal for Aristarchus and Herodotus. No
colour seen elsewhere e.g. Prom. LaPlace. The colour on Aristarchus had
gone by 01:15UT. Cameron 2006 catalog extension ID=414 and weight=3.
ALPO/BAA weight=3.
A fleeting faint reddish patch was seen in Gassendi
at 21:15UT. This observation has an ALPO/BAA weight of 2.
Rays of(?) (in?) Herodotus 1955 Oct 28 UTC 18:30 Observed by Kozyrev
(Crimea, Russia, 50" reflector, spectragraph) "Spectrum 3934A (K of
Ca). 3964 (H of Ca) change in luminosity. 13% in H, 19% in K, 2% in H,
3% in K. in photo-line-depth method" NASA catalog weight=5 (very high).
NASA catalog ID #622. ALPO/BAA weight=5.
Mersenius 1975 Jun 21 UT 21:50-22:45 Observed by McConnell
(Northern Ireland, 6" reflector) Moore? (Sussex, Enland, 15"
reflector, 5" refractor, S=F), Reading (Rushden, England, ?
14" reflector) and Foley (Kent, England, 12" reflector, S=P)
"McConnell saw an obscur. starting at 2150h which disappeared
at 2245h. Moore(?) alreted, saw no anomaly in 15 in refl. &
5-in refr. under fair conditions from 2209-2228h. Reading
reported neg. fr. 2250-2345h (after phenom.). Foley reported
color in it but also a crater to S. of it & Aris., prob. due
to seeing conditions." NASA catalog weight=5. NASA catalog
ID#1408. ALPO/BAA weight=3.
On 1995 October 6 at UT 21:30 R. Lena (Rome, Italy - a UAI observer,
11.4cm reflector) saw 4 or 5 flashes from Herodotus crater. Light
intensities (mag?) ranged from 9 to 8 and they were brighter through a
red filter. There is no 2006 Cameron catalog entry for this observation
- it has come from the UAI web site. The ALPO/BAA weight=3.
1954 Aug 11 observed by Firsoff (Somerset, UK, 6.5" reflector,
x200) "Brilliant in red filter, variable)" NASA catalog
weight=4. NASA catalog ID #570. ALPO/BAA weight=3.
Aristarchus-Herodotus 1971 Sep 02 UTC 20:00 Observed by Ayeau
(Paris, France, 12" reflector, x100) "Brownish-red or maroon
seen on Aris. W.wall ridge to Herod. on S.wall of Herodotus"
NASA catalog weight=2. NASA catalog ID #1311.
ALPO/BAA weight=2.
Ross D 1965 Apr 14 UT 06:03-06:22 Observed by Harris (Whittier?, CA?,
USA, 19"? reflector) "Phenomenon description unavailable. Given at an
ALPO meeting" NASA catalog weight=0 (very unreliable). NASA catalog ID
#874.
On 1995 Oct 06/07 at UT 22:45-00:00 P. Mirteto (a UAI
observer, RI, Italy, 20cm reflector) observed some brightness
changes in Herodotus. Please note that this description is a
summary of the material on the UAI web site. The ALPO/BAA
weight=2.
On 1995 Oct 06/07 at UT 23:05-00:00 P. Mirteto (a UAI observer, RI,
Italy, 20cm reflector) observed some brightness changes in Prinz.
Please note that this description is a summary of the material on the
UAI web site. The ALPO/BAA weight=2.
On 1988 Sep 23 at 19:40-19:55 & 20:36-20:41 G. North (760mm
Coude Rrefractor, x250, Royal Grenwwich Observatory,
Herstmonceux, UK, seeing V, Transparency: Fair). 19:40-19:55
image very unsteady. All seems normal in other crtaters with
the exception of Arcimedes. Much of the rim seems indistinct
apart from a 1/4 length of the west rim. Strongly suspected
that this was due to a combination of seeing and illumination.
UT 20:02-20:06 - checked the area with a lower magnification
10" Astrographic Refractor - the crater seems more normal, so
suggesting that the theory was correct. 20:36-20:41 returned
to the 30" reflector, and the crater appeared similar to the
start of the session. This is almost certainly not a TLP, but
it would be helpful to have some images or sketches to check
this theory out. Weight=1.
On 1987 Mar 13 at UT02:00-03:00 De Groof (Belgium, 8" reflector x150,
seeing=clear) noted that the north west part of Aristarchus had a blood
red shimmering filling the whole crater. A video by Mobberley some 18
hours later, shows variation in Aristarchus. Cameron 2006 catalog ID=
301 and weight=5. ALPO/BAA weight=3.
On 1977 May 30 at 21:04-02:13UT J.H.-Robinson noted a loss of
detail inside Gassendi, however he did not regard this as a
TLP. The effect was also seen by P.W. Foley. Cameron 2006
extension catalog TLP ID=16 and weight=0 ALPO/BAA weight=1.
On 1964 Jan 27 at 21:00? Scarfe (UK) obtained spactra showing
luminescence? The Cameron 1978 catalog ID=797 and weight=5. The
ALPO/BAA weight=3.
Plato 1981 Jun 15 UTC 21:30 Observed by Amery (Reading, England, 25cm
reflector, seeing Antoniadi IV-V) At the 4 O'Clock position on the
North West corner?, there was a dark smudge which reached from the
floor across and over the wall and onto the terrain outside the crater.
Foley, alerted by Amery, saw a dark show-like patch in the crater's
north west corner, again lying across the rim. 2006 Cameron catalog
extension ID=148 and weight=4. Foley used a 12" reflector and seeing
was III-V. ALPO/BAA weight=3.
On 2009 Jan 09 at UT 20:00 P. Brierley (UK) took a CCD image of the
Aristarchus area - P.Grego upon examining this comments that he thinks
that Schiaparelli crater looked "muted in brightness -- it is normally
quite bright to look at". Though Grego comments that it might have
something to do with the image processing aplied to the image. The
ALPO/BAA weight=1.
Manilius 1968 Nov 04 UT 00:15-00:30 Observed by Jean et al. (Montreal,
Canada, 4" refractor, 6" reflector) "Extremeley bright flash on Men. &
Man. each." NASA catalog weight=2 (low). NASA catalog ID #1101.
Menelaus 1968 Nov 04 UT 00:15-00:30 Observed by Jean et al. (Montreal,
Canada, 4" refractor, 6" reflector) "Extremeley bright flash on Men. &
Man. each." NASA catalog weight=2 (low). NASA catalog ID #1101.
Alphonsus 1966 May 03 UTC 21:30 Observed by Smith (England, 10"
reflector) and Corralitos Observatory (Organ Pass, NM, USA, 24"
reflector, Moonblink) "Reddish patches. Not confirmed by Corralitos MB
(but in their report they give the feature as Gassendi)." NASA catalog
weight=2. NASA catalog ID #936. ALPO/BAA weight=1.
On 1987 Mar 13 at UT 20:52 M. Mobberley (Suffolk, UK, S=VG) obtained
some video that shows variation in Aristarchus crater e.g. ä visual
oddity in the SE corner" (Foley was interpreting the video). H.Hatfield
took some film of the TLP (Unstudied yet). The Cameron 2006 catalog ID=
301 and the weight=5.
On 1987 Mar 13 at UT 20:52 M. Mobberley (Sussex, UK) found that Mons
Pico varied in its north east section. This was recorded on video tape.
The Cameron 2006 catalog ID=301 and weight=5. The ALPO/BAA weight=2.
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.
Aristarchus 1975 Oct 18 UTC 20:00? Observed by Foley (Kent, England,
12" reflector) "Deep blue-viol. spot in NW (IAU?) interior corner."
NASA catalog weight=3 (average). NASA catalog ID #1415.
Godin UT 02:15-03:05 Observed by Porter (Narragansett, Rhode Island,
USA, 6" refletor, 45, 90x, S=P?, T=2) "Albedo change in some pts.
yellow-orange color on rim. Wondered if it were atmos. LTP albedo=
7,7,7,6.5. Normal albedos=7,7.5,6.5,6.5 for same pts. Nearby plain
albedos =6. LTP from 0250-0300h. Intensity normal at first;pts in W.
decreased & N.pt increased. No difference in intensity in red filter
till suddenly it jumped out & became vis. above the high background
albedo. Sketch. He thinks it was atm. seeing" NASA catalog weight=2
(low). NASA catalog ID #1370.
Aristarchus and Herodotus UT 20:00? Observed by Areau (Paris, France,
12" reflector x100) "Maroon color covering the ridge(?) E (ast. ?) &
the ridge(?) S. of Herod. In 3 or 5 secs. Cloud disappeared after 10
min." NASA catalog weight=3 (average) NASA catalog ID #1312.
On 1973 Dec 8 UT18:15-18:20 R.Billington (UK, 2" refractor)
reported that ristarchus was orange. However 15 minutes earlier,
another observer, Livesey made a sketch and did not report any
colour. ALPO/BAA weight=1.
Manilius 1939 Jul 30 UT 06:00 Observed by Haas? (NM?, USA, 12?"
reflector) "Dark area in S. part wad I=3.7 comp. with #449. Cond. were
similar. (phase same. real difference?). (normal here?)"
On 1979 Aug 06 at 22:24-22:54 P.Madej (Hudersfield, UK, 6"
reflector. Purple Wratten 35, and Yellow Wratten 15 filters
used) Orange glow seen (at x73) on west side of crater, near the
central peak. The central peak was coloured too at x110. At
22:32 (x75) the central peak was brighter than the rest of the
area wrough the yellow filter. At 22:34UT at x73 everything
looked OK through the purple filter. The TLP was still visible
at 22:54. ALPO/BAA weight=1.
Lichtenberg 1951 Jan 21 18:19.2-18:38.5 UT observed by Baum (Chester,
England). Tiny red spot noticed initially and then faded. Location of
spot 31.403N 66.167W. 20cm refractor x90-x100. Seeing fair-extremely
good. NASA catalog assigns a weight of 3. NASA TLP ID No. #
542. ALPO/BAA weight=2.
Schroter's Valley 1955 Jul 03 UT 22:00 Observed by Firsoff
(Somerset, England, 6.5" reflector x200) "Drawing contains a
star-like pt. at N. part of valley." NASA catalog weight=4.
NASA catalog ID #597. ALPO/BAA weight=1.
Schickard 1940 May 20 UT 20:00 Observed by Moore (England, 12?"
eflector) "Fog on floor -- milky appearance, less pronounced
than on 8/2/39 (see #456)." NASA catalog ID #465. NASA catalog
weight=4. ALPO/BAA weight=2.
Plato 1971 Jan 10 UTC 20:17-20:42 Observed by Taylor (Slough, England,
8.5" reflector) "Blink (dark gray to black), 13x3km diam. on E. wall &
floor in indentation in wall. Smaller by 2028 h. gone at 2035h.
Reappeared at 2028h & gone completely at 2042h)." NASA catalog weight=3
(average). NASA catalog ID #1282.
Gassendi 1973 Dec 08 UT 20:20-20:22 observed by J-H Robinson
(Devon, UK, seeing dair to poor). Suspected blink detected -
might have been due to atmospheric condtions?. ALPO/BAA weight=1.
Mare Humboldtianum 1951 Jan 21 20:47-22:00 UT observed by Baum
(Chester, England). The appearance of some mountains on the
limb appeared to change over time, with some mistiness. ALPO/BAA
weight=2.
Madler 1940 Aug 17 UTC 06:45 (Cameron gives 07:30 but Haas says
this is wrong) Observed by Haas (New Mexico?, USA, 12"
reflector?) "Bright spot on S. rim had I=5.9 on this date but
6.8 on Sep. 16, when observ. cond. were similar (see #473)" NASA
catalog weight=4. NASA catalog ID #470. ALPO/BAA weight=3.
The area west of Helicon not visible despite the area being
fairly bright at Full Moon time. This area was a very bright
patch one night. Cameron notes: comensurability of Full Moon &
Perigee. Cameron 2006 catalog extension ID=64 and weight=3.
Seeing=7 and transparency=4. 2.4" refractor used. ALPO/BAA
weight=1.
On 1964 Jan 28 at 21:00? Scarfe (UK) obtained spactra showing
luminescence? The Cameron 1978 catalog ID=798 and weight=5. The
ALPO/BAA weight=3.
Aristarchus 1968 Mar 14 UT 01:32-02:06 Observed by Olivarez, Maley,
Etheridge (Edinburgh, TX, USA, 17" reflector, x125 + Moon Blink) and
Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon Blink)
"S=5 (F-G) for the TX observations. "Trident Moon Blink on S. wall
creet & c.p. & white spots in crater. No color seen vis. Blink not seen
earlier or later. Other craters blinked some but not as strongly.
Only Aris. areas blinked when Moon blink was moved around. Observers
consider blinks real. Alt. of moon was 50 deg. Drawings. Corralitos
say they did not confirm, but they rep't Copernicus, not Aris." NASA
catalog weight=5 (very high). NASA catalog ID #1062.
On 2009 Sep 03 at UT23:15-23:17 B.Gibbs took some hand held digital
SLR images of the Moon (Sky conditions clear). Four images were taken
at: 23:14:53, 23:15:59, 23:16:05 and 23:17:23 (uncertainty +/-15 sec
offset from actual UT). These showed some apparent variation in the
brightness of Aristarchus. However there are ways toexplain this
through image motion blur when the images were taken. However we
cannot be absoultely sure. The ALPO/BAA weight=1.
Aristarchus 1961 Jun 27/28 23:00?-01:00? Observed by Granger &
Ring (Italy). "Enhancement of Spectrum in UV at CaII similar to
May obs." NASA catalog weight=5. NASA catalog ID #741. ALPO/BAA
weight=3.
Enhancement of spectrum in UV and CaI recorded on photoelectric
spectrometer scans by Grainger and Ring in Italy. Effect seen on
Aristarchus and a ray near Bessel (approx 17E, 22N). Cameron
1978 catalog ID=740 and weight=5. ALPO weight=3.
On 1964 May 26 UT 04:10-04:35 Bartlett (Baltimore, MD, USA, S=5, T=5).
observed that Aristarchus had a strong blue-violet glow on the east
wall and EWBS, with a strong violet tinge on the nimbus. Crater was
hazy, could not focus it in red, green or blue light. The Cameron 1978
catalog ID= and weight=4. The ALPO/BAA weight=2.
Proclus 1955 Aug 03 UTC 04:13-04:40 Observed by Bartlett (Baltimore,
MD, USA, 5" reflector, x180, S=5, T=5) "Floor blackish 2 intensity but
in green filter assumed a distinctly mottled or flocculent appearance
-- seen only in green. Neither blue nor red had any effect, but on
previous eve. green light had not produced such an appearance." NASA
catalog weight=4 (good). NASA catalog ID #602. The ALPO/BAA weight=3.
Aristarchus 1976 Jun 12 UT 05:21 Observed by Bartlett (Baltimore. MD.
USA, 4.5" reflector, 40-225x, S=5, T=3, "Deep viol. tinge in N. 1/2 of
nimbus. Faint blue-viol. radiance (gas ?) on E. - NE wall along crest.
No color elsewhere, nor on plateau m." NASA catalog weight=4 (high).
NASA catalog ID #1435.
On 1984 Dec 07 at UT 19:30-23:30 M. Mobberley (St Edmunds, UK,
seeing=IV-V, transparency=good, spurious colour seen) found 2
bright pathces on the east rim on alternate sides of a bright region.
The band from the central 16km wide region was dark on the east side.
Foley (Kent, UK, 12"reflector, seeing=II-III) found Aristarchus to be
not as bright as normal, apart from the band that Mobberley found (1
hour later). The dark regions were a murky green colour (bright through
green, blue and yellow filters and dark through red and orange
filters). Cook (Frimley, UK, transparency=excellent, CCD camera used)
found a bright "bulge"on the eastern side. Apparently data suggests
that the band was brighter in red than in near IR light. Cook's
calibrated brightness measurements suggest that there was no change in
brightness over the crater with time. Two other bright points were
seen: one at the Cobra's Head and another half way between the east rim
of Aristarchus and passes Herodotus. Wratten 29 (deep red), Wratten 87
(near IR) and combined Wratten 29 and Wratten 87 were used. In the red
Wratten 29 filter the brightness falls at22:20 at Shroters valley and
then rises in the bright ray. They return to normal at 22:30UT. There
was however a lot of measurement noise from the brightness readings of
points B and D. The Cameron 2006 catalog ID=256 and the weight=5. The
ALPO/BAA weight=3.
F. Graham took some photos of the Cobras Head and found a blue cloud
about 50 km in diameter and scattering light - Cameron says that
this indicates high density. Darling found the Cobra's Head obscure and
variable "clear and bright to diffused". Cameron was alerted observed
(02:40UT) variations with periods of approximately 30 seconds, and
thought that she could see a red tinge on the east rim of Aristarchus -
checks elsewhere found no other colours. Darling found that a blue
filter enhanced the effect and a red filter made it disappear. There
was a blink at 02:55UT but no blink in the Cobra's Head, which looked
fuzzy and lacking in detail. The effect was confirmed by Weier, who
also saw two dark spots in the Cobra Head in blue but not in red light.
The brightness of the Cobras Head was 6.0, Herodotus floor 5.5, NW wall
7.5, South wall, 7.0, Aristarchus south wall 9.0, west wall 9.0, south
wall 7.0, East wall 8.0, and the central peak 10.0. Observer details
were as follows: Darling (Sun Praire, WI, USA, 12.5" reflector, x159,
S=9/10). D. Weier (Sun Praire, WI, USA, 12.5" reflector, x159, S=
9/10), W. Cameron (Sedona, AZ, USA, 8" reflector x110 and x220, T=6 and
S=6) F. Graham (E.Pittsburgh, PA, USA, 7" refractor, thin haze).
Cameron 2006 catalog ID=415 and weight=5. ALPO/BAA weight=4.
On 2000 Jun 15 UT 20:37 C. Brook (Plymouth, UK, 60mm
refractor, x117 & x40, seeing good, transparency excellent)
observed abright spot on the north rim of Mare Crisium (57E,
25N). It was comparable to the illuminated rim of Proclus in
brightness. No colour seen. The spot was not visible the next
night. The ALPO/BAA weight=1.
Archimedes 1940 Aug 18 UT 03:25 Observed by Haas (NM?, USA, 12"
reflector?) NE outer wall had I=5.0, but was I=2.5 on June 20
(see #467) (similar colong.)" NASA catalog weight=4. NASA
catalog ID #471. ALPO/BAA weight=2.
Proclus 1972 Nov 20 UT 20:20 Observed by Farrant (Cambridge, England,
8.5" reflector, x178) "Dark patch in crater. Disappeared by next nite.
The normal ring seemed thickened. On Dec. 7. the crater appeared
bright. Drawings. (prob. real LTP, nr. FM)" NASA catalog weight=3
(average). NASA catalog ID #1350.
Gassendi 1966 Dec 27 UTC 06:30-07:05 Observed by Kelsey (Riverside, CA,
USA, 6" reflector?) "Very faint blink on SW (ast. ?) floor & on another
N. of it on NW floor. Obs. considers obs. very suspect" NASA catalog
weight=1 (very poor). NASA catalog ID #1006.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th.
Cloud-like effect where light had been (on 8th). Cameron 1978 catalog
TLP ID No.=139 and weight=3. ALPO/BAA weight=2.
Plato 1967 Nov 17 UTC 18:36-18:50 Observed by Moore, Moseley
(Armagh, Northern Ireland, 10" refractor x260) "Faint blink
under SW wall. Nothing seen vis. Gone by 1839h. Reappeared at
1841, then gone by 1850h. Checks till 0200h were neg. Obs.
dubious of reality of phen." NASA catalog weight=2. NASA catalog
ID #1054. ALPO/BAA weight=1.
Proclus 1958 Aug 30 UT 06:30-06:45 Observed by Bartlett (Baltimore, MD,
USA, 4" reflector, x240, S=6, T=5) "Proc. Q. a bright spot on NE rim
apparently a crater presented a very abnormal aspect. Extraordinarily
large & at least 9 deg bright -- like EWBS on Aris. This spot is
subject to large unexplained variations. At 97 deg col. in July, Q was
also 9 deg bright but very small. At col.96 deg, 5 in May '58,
col.99deg in Feb.'50, & 96 deg in Nov. '55 it was not seen at all.
Assoc. with tonite was a distinct blue glare on NE rim, extending for
short dist. & @ 2x as far as S." NASA catalog weight=4 (high). NASA
catalog ID #894.
Aristarchus 1970 Jan 23 UT 07:00? Observed by Thomas, Rogers,
Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon blink)
"Bluing around the crater -- vis. in monitor but not photographed
due to clouds" NASA catalog weight=4 (high). NASA catalog ID #1233
W.Humboldt 1897 Dec 09 UTC 23:00? Observed by Goodacre (Crouch End,
England, 12" reflector) "Shadow anomaly. Chocolate penumbral shade
edging black shadow on E. wall." NASA catalog weight=3 (average). NASA
catalog ID #296.
Cobra Head 1955 Oct 31 UTC 19:00 Observed by Milligan (England?) "Dark
blue obscuration" NASA catalog weight=3 (average). NASA catalog ID 624.
On 1983 Jan 29/30 at UT20:35-01:00 Sykes (UK?) observed that
Linne appeared to brighten for approximately 20 min and had the
appearance of a point (confirmed). This observation was made
during a major Torricelli B TLP. The Cameron 2006 catalog ID=198
and the weight=5. The ALPO/BAA weight=2.
Torricelli B 1983 Jan 29/30 UTC 20:35-02:30 Observed by Foley (12"
reflector, seeing Antoniadi II, Transparency=good, no spurious colour
seen), Moberley (14" reflector, seeing Antoniadi II, transparency
excellent, spurious colour strong), Cook, J & M (12" reflector, seeing
Antoniadi II-III, transparency moderate). All observers based in
southern England. "Initially crater brightest feature on the Moon, then
it faded. Strong colour also seen by all observers e.g. green-blue to
violet. Report of observations written up in JBAA Vol 100, No. 3, p117
123, (2000) - probably one of the best reorted TLP". The Cameron 2006
catalog ID=198 and weight=5. The ALPO/BAA weight=5.
On 1983 Jan 29 at UT22:09 M.Mobberley (Sulfolk, UK, 14" reflector)
noted that Arago B had a slight tinge of violet colour, and was a lot
less (bright?) than Torricelli B's blueness. Other craters checked but
were not showing any blue colour. The Cameron 2006 catalog ID=198 and
weight=5. The ALPO/BAA weight=3.
On 1983 Jan 29 at UT22:09 M. Mobberley (Suffolk, UK), found that Moltke
crater was "exceptionally bright". Other craters (apart from Arago B
Torricelli B etc) appeared normal. The Cameron 2006 catalog ID=198 and
the weight=5. The ALPO/BAA weight=2.
On 1983 May 28 at UT 01:50-03:00 K. Marshall (Medellin, Columbia)
observed the whole region of Aristarchus, Herodotus and Shroter's
Valley all to have a brightness of 3 and all blue and impossible to
focus on (he had never seen it like this before). Also the interior of
Aristarchus was invisible. Brightness measurement taken and a sketch
was made. The Cameron 2006 catalog ID=222 and the weight=3. The
ALPO/BAA weight=3.
Proclus 1972 Nov 21 UT 21:30 Observed by Farrant (Cambridge, England,
8.5" reflector, x130) "Thickened bright ring remained, but the dark
patch had disappeared. (dark patch prob. real temporary phenom. as it
was seen nr. FM when contrasts are strongest, yet disappeared" NASA
catalog weight=1 (very low). NASA catalog ID #1351.
On 1978 Apr 23 at UT20:35 (Rawlings, UK, finderscope, x50)
observed a bright flash (~0.3 sec duration) near to Copernicus (20W,
9N) with rays to the south east whilst he looked through a finder
scope. Moore, who studied the drawing, suggests that the area of the
flash was near Copernicus. However Cameron says this cannot be the case
if the flash was in darkness as mentioned in the BAA Lunar Section
circular. She comments that it might have been a meteor? The Cameron
2005 catalog ID=28 and weight=1. The ALPO/BAA weight=1.
Conspicuous bright spot seen on 6th. Also seen on 7th, absent on 8th.
Cloud-like effect where light had been (on 8th). Cameron 1978 catalog
TLP ID No.=139 and weight=3.
On 1990 Dec 03 at UT23:00-01:30 M.C. Cook (Frimley, Surrey, UK) noticed
that the central peak of Aristarchus was quite bright and extended to a
circular region in the east in the crater "sprout" area - Cameron
suggests that this is Bartletts self defined EWBS area?. Beyond the rim
to the east was very bright. However no colour effect was seen in
filters. A sketch was supplied. Cameron notes the coincidence of
perigee and full Moon. The Cameron 2006 catalog ID is 416 and the
weight=3. The ALPO/BAA weight=1.
East of Plato 1961 Jun 29/20 23:00?-01:00 Observed by Granger
and Ring (both in Italy) "Enhancement of spectrum in UV & Ca I
recorded on photoelectric spectrometer scans" NASA catalog
weight=5. NASA catalog ID #742. ALPO/BAA weight=3.
In 1954 Jul 17 at UT06:50-07:15 Bartlett (Baltimore, MD, USA, S=
5, T=5-1) observed near Aristarchus: "Pale violet tint on
surface NE of crater, no color elsewhere". The Cameron 1978
catalog ID=568 and weight=4. The ALPO/BAA weight=1.
Aristarchus 1970 Jan 24 UT 07:00? Observed by Thomas, Rogers,
Corralitos Observatory (Organ Pass, NM, USA, 24" reflector, Moon blink)
"Bluing around the crater -- vis. in monitor but not photographe due to
clouds" NASA catalog weight=4 (high). NASA catalog ID #1233
LaLande 1973 Jul 17 UT 03:30-03:45 Observed by Galgoey (Washington, NJ,
USA, 2" refractor x46, x117), S=VG, T=5) "Star-like pt., variations, 1-
2s, seen only at 40x, not at higher powers. LTP albedo =10, normal=8,
nearby plain =6 (geom, instrum. & atm. & refl. material at site
effects?)" NASA catalog weight=1 (very low). NASA catalog ID #1371.
(Baltimore, MD, USA, 5" reflector x180) "Strong violet glare on
E. rim, changing to brown. At 0220 dark viol. in nimbus, at 0235
viol. changed to brown. At 0255 viol. suddenly reappeared, but
faded to invis. at 0300. Again at 0308 reapp. Only time he ever
saw such color changes." NASA catalog weight=4. NASA catalog ID
583. ALPO/BAA weight=3.
Gassendi 1940 Aug 20 UT 03:25 Observed by Haas (NM?, USA, 12"
reflector?) "Largest bright spot on SE pt. of floor had I=8.6
(real changes? see @ '#649, 474, & 475, all similar change)."
NASA catalog weight=4. NASA catalog ID #472. ALPO/BAA weight=2.
1824 Dec 08 UTC 00:00? Observed by Gruithuisen (Munich, Germany)
"Bright fleck in SE part of crater" NASA catalog weight=4 (good). NASA
catalog ID #104. ALPO/BAA weight=2.
Aristarchus 1947 Nov 30 UTC 00:00? Observed by Favarger
(France?) "3 bright points on inner w. slopes." NASA catalog
weight=2. NASA catalog ID #499. ALPO/BAA weight=1.
On 1983 Jan 30 at UT 23:45 Chapman (England, UK) observed that
Censorinus was low in brightness. The Cameron 2006 catalog ID=199 and
the weight=4. The ALPO/BAA weight=2.
On 1983 Jan 30 at UT 23:45 P.W. Foley (Kent, UK, 12" reflector)
measured that the brightness of the region around Toricelli B was 2.3
(high) and there was a slight blue colour. The Cameron 2006 catalog ID=
199 and the weight=4. The ALPO/BAA weight=2.
Herodotus 1972 Jul 27 UT 2250-2350 M.Brown (Hutington, UK)
thought that he saw a pseudo peak in the centre of Herodotus.
He could not decide if it was real or an optical illusion.
ALPO/BAA weight=1.