On 1909 Jan 24 at 19:30 UT Nicoles and Krebs (France?) noticed that the
dark side of the Moon glowed red - Cameron suggests special terrestrial
atmospheric effects? The Cameron 1978 catalog ID=328 and weight=1. The
ALPO/BAA weight=1.
1980 May 17 at 21:00UT P.W. Foley (Kent, UK, using a 12" reflector)
observed that Aristarchus was dull on the Earthlit side of the Moon.
This was odd because other features were clerly seen. Cameron 2006
catalog extension ID=94 and weight=1. ALPO/BAA weight=2.
On 1909 Jan 25 at 19:30 UT Nicoles and Krebs (France?) noticed that the
dark side of the Moon glowed red - Cameron suggsts special terrestrial
atmospheric effects? The Cameron 1978 catalog ID=328 and weight=1. The
ALPO/BAA weight=1.
On 1980 May 18 at UT 20:10-22:35 J.D. Greenwood (Morecombe, UK, 10"
reflector and 3" refractor, seeing II-III, conditions very good) noted
that the inside of Aristarchus had a star-like point contained within a
diffuse blue-green hue coloured glow. There were also intermittent
flashes visible during short irregular periods using a Wratten 44a
(blue-green filter)but were difficult to see trhough a Wratten 25 (red)
filter. The Moon was at a low altitude and the observation ceased at
22:25UT. P.W. Foley (Hent, UK, seeing II) observed flashes in
Aristarchus and occasional star-like points - he also observed the area
to be in a bluish translucent glow extending for about 40 miles all
around the crater. In order to check on the visibility of Earthshine, a
region of highland, near Grimaldi was checked and found to be 0.2
bright with no variations. However Aristarchus itself varied from a CED
freading of 0.6 to unmeasurable. Foley observed from 20:10-22:30UT. P.
Madej (Huddersfield, UK, 77m refractor, seeing I-III) observed at
22:17UT and saw the crater as a "ghostlike gossamer light". Cook, Moore
and North returned negative reports. Cameron 2006 catalog extension ID=
95 and weight=2. ALPO/BAA weight=2.
On 1957 Jul 31 UT 02:24 C. Johnson (4" reflector, x91, seeing 10/10)
observed a slight ring of light reaching around the north limb of the
Moon. The ring was only just brighter than Earthshine and about 1600km
long. The Moon's age was 3.9 days. The reference for this comes from;
Johnson, Craig, L. "Lunar Limb Brightening", Strolling Astronomer,
11:118, 1957.
1950 Nov 14 UT23:38 L.T. Johnson (La Plata, MD, USA, 10"
reflector, x179) observed a mag 10 flash in Earthshine. ALPO/BAA
weight=1.
CCD images were captured in white light that seemed to show that
the relative brightness between Aristarchus or Pytheas differed
considerably to what they were to be one night later on 2008 Nov 26.
Either Aristarchus was brighter on the 25th or Pytheas was darker.
Which feature, and which night, the abnormality occurred on is
uncertain. One possible explanation might be a brightness
gradient from glare from the sunlit side affecting the image contrast
quality of the CCD images for relative photometric measurements.
This TLP is being assigned a weight of 3 for now.
CCD images were captured in white light that seemed to show that
the relative brightness between Aristarchus or Pytheas differed
considerably to what they were to be one night later on 2008 Nov 26.
Either Aristarchus was brighter on the 25th or Pytheas was darker.
Which feature, and which night, the abnormality occurred on is
uncertain. One possible explanation might be a brightness
gradient from glare from the sunlit side affecting the image contrast
quality of the CCD images for relative photometric measurements.
This TLP is being assigned a weight of 3 for now.
On 1981 Apr 09 at UT 19:44 M. Price (Camberley, Surrey, UK, 6"
reflector, 58x and 117x) saw a 4 sec brightening in Aristarchus in the
clear Earthshine. Other features visible were: Grimaldi and some mare.
Foley found the crater to be "luminous & translucent". Cameron 2006
catalog ID=129 and weight=0. ALPO/BAA weight=1.
CCD images were captured in white light that seemed to show that
the relative brightness between Aristarchus or Pytheas differed
considerably to what they were to be one night earlier on 2008 Nov 25.
Either Pytheas was brighter tonight or Aristarchus was darker.
Which feature, and which night, the abnormality occurred on is
uncertain. One possible explanation might be a brightness
gradient from glare from the sunlit side affecting the image contrast
quality of the CCD images for relative photometric measurements.
This TLP is being assigned a weight of 3 for now.
CCD images were captured in white light that seemed to show that
the relative brightness between Aristarchus or Pytheas differed
considerably to what they were one night earlier on 2008 Nov 25.
Either Pytheas was brighter tonight or Aristarchus was darker.
Which feature, and which night, the abnormality occurred on is
uncertain. One possible explanation might be a brightness
gradient from glare from the sunlit side affecting the image contrast
quality of the CCD images for relative photometric measurements.
This TLP is being assigned a weight of 3 for now.
On 1821 Nov ? at UT 19:00 an unknown observer (in England) reported
"Bright spots on the moon. (if early phase, date would be 26th-29th) 4
other instances mentioned. Fixed streaks of light in dark part -- first
one stated as moving. The cameron 1978 catalog ID=94 and weight=2. The
ALPO/BAA weight=1.
On 1988 Nov 15 at 10:07-10:40 UT P. Jean (Outremont, Quebec,
Canada, 4" refractor?) saw in the SE part of Mare Serenitatis
a luminescent area just over on the night side of the
terminator - it was cone shapes and coppery in colour. Cameron
comments that maybe it was a very low sun angle effect and she
has seen something similar, but on the bright side of the
terminator. Jean then goes onto comment that at 10:25UT a very
dark line was seen south of the cone i.e. east of the
terminator. A sketch was provided and P.Foley commented that
the cone did not correspond to any terrain. Cameron 2006
Catalog Extension ID=339 and weight=3. ALPO/BAA weight=2.
2004 Dec 18 UT 02:00 F. Serio (Houston, TX, USA) may have
imaged aperiod of brightening in this crater in images -
though Darling comments that it could be a Registax issue.
ALPO/BAA weight=1.
On 1979 Jul 01 at 22:00?UT D.J. Raden (Fort Meade, FL, USA, using a
10" reflector) detected a flare near to Halley (5E, 9S) visually with
the eye and it lasted about 3-4 min - a sketch was made. However it was
also found on one photographic slide taken with an exposure of 35
seconds. The observer comments that visually the flare was not as
bright as it appeared in the photograph. In an area near Halley. The
Cameron 2006 catalog extension ID=57 and weight=5. The ALPO/BAA
weight=4.
On 1983 Feb 19 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12"
reflector) noticed a deep steel blue colour inside Toricelli B with a
lighter colour about 10-15 miles outside. Foley came to the conclusion
that this was too visible for its size. Cameron 2006 Catalog extension
ID=206 and weight=3. ALPO/BAA weight=2.
Maskelyne 1969 Nov 16 UTC 16:28-17:10 Observed by Persson (Hvidore,
Denmark, 3" refractor) "Brightening & obscur. (Apollo 12 watch)." NASA
catalog weight=2 (low). NASA catalog ID #1210.
On 1969 Nov 16 at UT 16:43-19:22 Dall'Ara (Switzerland, 4"? reflector),
Stucchi (Switzerland, 12" reflector) observed in Aristarchus
intermittent pulsations - Cameron speculates atmopsheric and also
mentions the Apollo 12 watch. The Cameron 1978 catalog ID=1211 and
weight=3. The ALPO/BAA weight=2.
Montes Teneriffe 1854 Dec 27 UT 18:00-23:00, Observed by
Hart & others (Glasgow, Scotland, 10" reflector), "2 luminous
fiery spots on bright side on either side of a ridge,
contrasting color. Seemed to be 2 active volcanoes. Ridge was
normal color. Spots were yellow or flame color. Never seen
before in 40 yrs. of observing." Please try to observe this
when the Moon is low on the horizon to see if this mimics
the effects seen? NASA catalog weight=4. NASA catalog ID #129.
ALPO/BAA weight=2.
Hyginus Nova 1877 Nov 13 UT 20:00? Observed by Crain, Klein, Eng.
officer (France?, Cologne (Germany), Enland?, 6" refractor?, S=E)
"Standing out with such prominence, seen at a glance. No trace of it on
14th, in excell seeing. (indep. confirm.?)"NASA catalog weight=5 (very
high). NASA catalog ID #198. ALPO/BAA weight=3.
On 1983 Feb 20 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12"
reflector) noticed a deep steel blue colour inside Toricelli B with a
lighter colour about 10-15 miles outside. Foley came to the conclusion
that this was too visible for its size. Cameron 2006 Catalog extension
ID=206 and weight=3. ALPO/BAA weight=2.
On 2003 Apr 10 at 00:40UT a GLR observer G. Jasmin (Quebec, Canada,
using a 10" F-10 Schmidt Cassegrain) took a photograph of Alphonsus
crater on Kodak 400ASA film with an exposure of 1/30th sec. There was a
light visible (diameter 10 km) inside Alphonsus and the effect was
present for 5 minutes. The observer commented that they have seen a
light in this crater many times before, but never as long as 5 minutes.
This report was submitted to the GLR group in Italy. The ALPO/BAA
weight=2.
Thaetetus 1952 Dec 24 UT 20:00? Observed by Moore (England?)
"Bright spot, hazy line of light" NASA catalog weight=4. NASA
catalog ID 556. ALPO/BAA weigh=2.
Menelaus 1969 Nov 17 UT 16:00-19:00 Observed by Rubens de
Azevedo,A. Monghilhot, E. Leal e Jose Fernandes (Joao Pessoa,
Paraiba, Brazil, 8" and 10" reflectors) "Entire crater of
Men. illum. by pale greenish light. (Azevedo)" NASA catalog
weight=5 NASA catalog ID #1211a. ALPO/BAA weight=4.
Fauchier of Marseilles, France, seeing=good - fair and the Moon at a
high altitude, saw two lights on the Moon brighter than any others
during similar circumstances. They had colour. These had not been seen
before and he ruled out cromatic aberation. Cameron 1978 catalog ID=249
and weight=3. ALPO/BAA weight=2.
2004 Dec 20 UT 02:51-03:26 R. Gray (Winumma, USA) noted that
the crater had exceptional brightness to nimbus surrounding it. ALPO/BAA
weight=1.
Hyginus Nova 1867 Nov 14 UT 20:00? Observed by Crain, Klein, Eng.
officer (France?, Cologne (Germany), Enland?, 6" refractor?, S=E) "On
13th it was standing out with such prominence, seen at a glance. No
trace of it on 14th, in excell seeing. (indep. confirm.?)"NASA catalog
weight=5 (very high). NASA catalog ID #198.
On 1979 Jul 03 at UT 20:55-21:20 J-H. Robinson (Teighmouth, Devon, UK,
10" reflector, seeing II) observed that Messier was brighter than
Messier A. No colour was observed. The Cameron 2006 catalog ID is 58
and the weight=3. ALPO/BAA weight=1.
On 1983 Feb 21 at 20:00UT P.W. Foley (Maidstone, Kent, UK, 12"
reflector) noticed a deep steel blue colour inside Toricelli B with a
lighter colour about 10-15 miles outside. Foley came to the conclusion
that this was too visible for its size. Cameron 2006 Catalog extension
ID=206 and weight=3. ALPO/BAA weight=2.
Alphonsus 2004 Feb 29 UT 19:00-19:15 Observed by Brook (Plymouth,
England, 60mm OG x120) "Checked central peak of Alphonsus using 60mm OG
x120 + right angle prism. Moon at very high elevation, seeing excellent
once clouds had dispersed, transparency also excellent. Time of
observation 19-00 hrs UT to 19-15 hrs UT. Noticed fluctuation of
brightness of A's central peak compared with the peak of Arzachel.
Alphonsus' peak generally brighter." BAA Lunar Section report. ALPO/BAA
weight=1.
On 2010 Aug 19 at UT 00:50-01:02 J.Albert (Lakeworth, FL, USA,
C11, Transparency 3, Seeing 7-8, 86F and very humid. Oberver
checking out repeat illumination condition appearence for Tycho
concerning LTP #468 in the 1978 Cameron catalog. Did not see the
effect from the original TLP report, but did see, immediately at
looking at Tycho a very faint hint of redness in a pencil thin
arc (< 1/4 circumference of the rim) confined to the top of the
rim of the well-lit north east wall. Coloured arc similar in
thickness to Rupes Recta, but not as sharply defined. The outer
(E) edge was perhaps sharper than the inner edge. The redness
was more on the inside of the top of the rim. The outside of the
rim was bright white. This effect was seen in three different
eyepieces, at 311x, 224x and 400x. Checked for the effect on
other craters nearby but could not see this effect anywhere
else. The colour had dissapeared by 01:02UT. The fade took about
1-2 minutes. Observation of Tycho continued until 01:06UT, but
all seemed normal. Quick checks were made again on Tycho
periodically until 02:50UT but the colour was not seen again.
ALPO/BAA weight=3.
On 1964 Feb 22 at UT 05:00 Harris (Whittier, CA, 19" reflector, x100)
observed the appearance of a ring to the south east of Ross D. Cameron
says that 7 persons have seen this over a 2.5 year period. The Cameron
1978 catalog ID=801 and weight=1. The ALPO/BAA weight=1.
Tycho 1940 Jul 14 UT 02:00? Observed by Haas (NM? USA, 12"?
reflector) "Luminous marks in shadow, ragged edged & irreg.
shape. E. wall had a milky luminosity" NASA catalog weight=4.
NASA catalog ID #468. ALPO/BAA weight=2.
Gassendi 1967 Feb 18 UT 20:30-20:40 Observed by Moore, Moseley
(Armagh, Northern Ireland, 10" refractor, x300) "Red color in
crater (in dark)". NASA catalog weight=4. NASA catalog ID #1015.
ALPO/BAA weight=4.
On 1980 May 23 at UT21:14-21:55 J.H. Robinson (Teighmouth, Devon, UK,
12" reflector, seeing II-III) could see Aristarchus in blue and clear
filters, but not in red light. Robinson saw some variability in this
effect with time. Cameron 2006 catalog ID=96 and weight=3. ALPO/BAA
weight=2.
On 1980 May 23 at UT 21:14-21:18 Marco Petek (Porto Alegre,
Brazil) saw a shadow extending south east from Campanus
opposite to the Sun - however Foley thinks this is normal.
Cameron 2006 catalog ID=96 and weight=0 or 1.
ALPO/BAA weight=1.
On 1980 May 23 at UT21:14-22:18 G. Blair (Bridge of Weir,
Scotland, UK, 216mm reflector, seeing II-IV) found a red tinge
along the western wall of Coperncius, perhaps 32km in length.
This was invisible in a blue-green Wratten 44a filter, but was
unmistakble in a red Wratten 25 filter. Could have been
spurious colour - but no other regiosn were affected. The
ALPO/BAA weight=2.
On 1980 May 25 at UT 22:18 G. Blair (Bridge of Weir, Scotland, 216mm
reflector, seeing II-IV) suspected a short sharp flash, white in colour
north of Tycho's north wall. Nothing more seen. ALPO/BAA weight=1.
On 1980 May 23 at UT22:30 (P.W. Foley (Kent, UK, 10" reflector, seeing
II) described Aristarchus as a "blue luminous patch", but it was too
faint to obtain a CED brightness measurement. Cameron 2006 catalog ID=
96 and weight=3. ALPO/BAA weight=2.
2012 Sep 24 UT 22:00-23:00 Copernicus. E. Horner (Salisbury,
UK, 15cm reflector) observed a prominent red arc where the
sunlit part of the interior wall met the shadow. Sometimes the
arc was 1/4 the way around the interior, and sometimes half of
the way around. Telescope moved, but the red arc stayed where
it was. Eyepieces change, but the effect remained. Other parts
of the Moon checked, but no red seen. There were however
splashes of green e.g. Longomontanus on the terminator,
elsewhere further inland from the termionator, and little
splashes of green on Mare Frigoras - but lasting a brief time.
The red colour was as strong as a red LED and the green similar
to that of the northern lights. The observer's husband was asked
to independetly check Copernicus and remarked that he could see
a little bit of green at the top and some red near the bottom,
along the line of the internal shadow. Although there were
checks for red elsewhere on the Moon and none were seen, the
Moon was starting to get low and it is typical of spurious
colour in a few respects. Therefore the ALPO/BAA weight=1 for
safety.
Atlas 1966 Dec 21 UT 17:10 Observed by Andre (Belgium, 3" refractor)
"Bright spot on SE part of floor, not seen in photo on 12/18/66" NASA
catalog weight=2 (low). NASA catalog ID #1003.
Mons la Hire 1972 Nov 15 UT 09:45-10:18 M.Geisel (Brisbane,
Australia, 12.5" f/8 reflector, x90) discovered the TLP, P.
Anderson (9.5" reflector) independently confirmed that the TLP
had an effect in his Moon Blink device - but the effect
(suspected that the blink was caused by the extreme nrightness
of the mountain?) was weak and thought it not worth further
investigation. Photographs taken by Anderson. Geisel believes
the effect to be real and states that the area remained sharp
and clear throughout. ALPO/BAA weight=2.
Ross D vicinity 1964 Apr 22 UT 05:43-0637 Observed by Cross et
al. (Whittier, CA, USA, 19" reflector, x800-1200 & filters, S=7-
8, T=1) "Gas cloud over it & its companion; everywhere else was
fine detail" NASA catalog weight=5. NASA catalog ID #809.
ALPO/BAA weight=3.
Colour seen, mostly blueness on south rim and exterior of south
rim at Bullialdus crater. Blueness seen too on Plato on inner SSW
rim, but no colour reported on any other craters. Seeing III,
12" reflector used x200 and x360.
Colour seen, mostly blueness on inner SSW rim. Blueness also seen
on south rim and exterior of south rim at Bullialdus crater. No colour
reported on any other craters. Seeing III, 12" reflector used x200 and
x360.
Daniell 1979 Jul 04 UT 20:40-21:19 Observed by Saxton (UK?, 216mm
refractor?, seeing III, transparency: Good) "noticed that the east
end of Daniell was bright and fuzzy and had somewhat poorly defined
edge to the bright part. A sketch was made, and possibly shows
the same as in past reports" BAA Lunar Section Report. Cameron
2006 extension catalog ID=59 and weight=3. Observer located in
Leeds, England and used a 9" reflector x250. Seeing=III and
transparency=good. ALPO/BAA weight=2.
In 1872 Mar 19 at UT 23:17 an unknown observer observed in Sinus
Iridum: "Covered with a light gray shadow thru which he saw dimly the
surface below - indicating obscuring matter over it. (Cameron says:
only w. 1/3 of bay would be in shadow as boundaries are 25-37W)". The
Cameron 1978 catalog ID=178 and the weight=3.
Alphonsus 1967 Feb 19 UT 20:30-21:11 Observed by Moore,
Moseley (Armagh, Northern Ireland, 10" refractor, x360) "Blink
area between 1900 & 1940 with neg. results. Suddenly at 2030
there was a bright red glow, brightest Moseley had ever seen,
at Feb 17 suspectec place. Moore returned at 2037h in time to
see fading effect. Brief return at 2105-2111; neg. from
2120-2250h then clouds. Nothing on Feb 20. confirmation)."
NASA catalog weight=5. NASA catalog ID #1016.
ALPO/BAA weight=4.
H. Davies (Llamandel, Swansea, UK, using a 3" refractor,
detected a short duration reddish hue along the inner NE-NW?
rim (4-7 O'Clock location. Sketch supplied to Foley (BAA
coordinator). No similar effect seen elsewhere. A.C. Cook
(Frimley, UK) detected spurious colour on several craters,
including Plato that night. Cameron 2006 Catalog Extension ID=
337 and weight=0. ALPO/BAA weight=1.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars
saw three dark spots suddenly appear on Mare Crisium and disappear
approximately 30 minutes later. Cameron 2006 catalog extension ID=145
and catalog weight=4. ALPO/BAA weight=2.
Arsyukhin and others (Moscow, USSR), with naked eye and binouculars
saw TLP activity in Plato that Cameron thinks confirms what UK
observers saw later. Cameron 2006 catalog extension ID=145
and catalog weight=4. ALPO/BAA weight=1.
Alphonsus 1966 Apr 01 UT(?) 03:00-03:20 Observed by Jenning,
Harris (Coral Estates, CA, USA, 12" reflector) "Red patch from
c.p. to W. wall (no confirm. from Corralitos obs. moon blink
device & obs. at that time)" NASA catalog weight=3. NASA
catalog ID #924. ALPO/BAA weight=2.
Agrippa and vicinity 1878 Dec 04 UT 20:00? Observed by Capron (France?)
"Odd, misty look as if vapor were in or about them" NASA catalog
weight=3 (average). NASA catalog ID #209.
Observed by G.H. Johnstone of Albuquerque, NM, USA on 1954 Nov 05 UT
20:00 (according to Cameron), but 02:00-04:00 according to the
original observation and at colongitudes 34.7 to 35.7 deg. 4"
reflector, x150 used. The obsewrver reported that the western part
(about 1/3rd of the interior) was pitch black with shadow. However
there was a zone about as wide, or perhaps only a fourth of the total
width that was distinctly a lighter bluish shade, almost like twilight.
The shadows of the peaks on the western edge of the rim were clearly
seen crossing this bluish shadowed area. Then this area ended sharply,
and the farside was bathed in light from the rising sun. The shadows of
the peak were sharply defined across the twilight zone, and the edge of
the pitch black shadow was easily defined but not as sharp as the
darker shadows crossing the the blue twilight zone. The observer
checked other craters but did not see this condition in any of them -
they all had the abrupt division between black and white that we would
normally expect to see. Cameron 1978 catalog ID=579 and weight=2.
Reference 1962 edition of ALPO's Journal: The Stolling Astronomer.
ALPO/BAA weight=3.
Censorinus 1969 Nov 19 UT 1922 Observed by Brandli (Wald,
Switzerland, 6" reflector, x90) "Brightening -- photo, (the
author, WBC, cannot verify from photo. It is brighter, but so
are Proc. & Dionys. -- it being between. i.e. Proc. > Censor. >
Dionys. Apollo 12 watch)." NASA catalog weight=5 (very high).
NASA catalog ID #1220. ALPO/BAA weight=1.
Brilliant blue color seen at first for seconds, later for min
2h later, in blue filter. Cameron 1978 catalog weight=4 (high).
Cameron 1978 catalog ID 572.
Furnerius 1961 May 26 UT 02:20-03:00 Observed by Cameron (Aldephi, MD,
USA, 3.5" Questar reflector x160, S=G) "Crater stood out like
glittering points (small craters on rim?). Many features examined but
effect seen only on this crater and Stevinus (Specular refl. from flat
surface?)" NASA catalog weight=1 (very low). NASA catalog ID #738.
Stevinus 1961 May 26 UT 02:20-03:00 Observed by Cameron (Aldephi, MD,
USA, 3.5" Questar reflector x160, S=G) "Crater stood out like
glittering points (small craters on rim?). Many features examined but
effect seen only on this crater and Stevinus. (Specular refl. from flat
surface?)" NASA catalog weight=1 (very low). NASA catalog ID #738.
Tycho 2971 Nov 28 UT 21:58-22:05 observed by D.B. Taylor (Dundee,
UK, darker area inside the crater (NE and SE floor) in a Moon
Blink device. However the observer does not report through which
filter ir was darker. ALPO/BAA weight=1.
Plato 1971 Oct 30 UT 19:35-20:55 E.Watkins (Braintree, UK, 4.5"
reflector, x45,x150, x225), thought he saw a faint patch at
19:35 and it still was visible at 19:40. At 19:50-19:55 he saw
what may have been the remainder. At 20:55 he noticed a shadow
in the area. ALPO/BAA weight=1.
Gassendi 1969 Nov 20 UT 17:06-17:15 Observed by Duckworth
(Manchester, England, 8" refractor x250) Faint Pinkish
Obscuration on floor. Event in progress at 1706 - left telescope
at 1715 to report it, but TLP gone upon return. Gassendi was
normal from from 1734-1822h. NASA catalog weight=4. NASA catalog
ID #1223. ALPO/BAA weight=3.
Plato 1980 May 25 UT 21:33-22:54 Observed by North (Seaford,
UK, seeing III-IV, 460mm Newtonian) Definite strong reddish
glow along NNW border, definitely much stronger than spurious
colouration and always visible when telescope moved in RA and
Dec to eliminate possible chromatic aberation effects in the
eyepiece. Effect ended by 21:54 UT. BAA Lunar Section Report.
ALPO/BAA weight=2.
Hyginus N 1944 Apr 04 UT 20:00? Observed by Wilkins (Kent, England,
15" reflector) "Darker than usual. S. edge of great crater valley was
bordered by a narrow dark band for 13km along its length" NASA catalog
weight=4 (high). NASA catalog ID #490.
SE of Ross D 1965 Mar 14 UT 07:40 Observed by Cross (Whittier,
CA?, USA, 12" reflector). Crater wall partially obscured;
bright area. NASA catalog weight=3. NASA catalog ID #872.
ALPO/BAA weight=3.
Gassendi 1969 Nov 20 UT 19:30-19:45 Observed by Becker (Holland, 4"
refractor) "Curious small shadow from NW (ast. ?) wall. (Apollo 12
watch)" NASA catalog weight=1 (very low). NASA catalog ID #1224.
Aristarchus 1969 Nov 20 UT 19:45-20:05 Observed by Becker (Holland, 4"
refractor) "Sharp whiteness on inner W. (ast. ?) side (Apollo 12
watch)" NASA catalog weight=1 (very low). NASA catalog ID #1224.
Daniell 1979 Jul 06 UT 21:15-22:30 Crick (Belgium, 6"
reflector, Seeing=II and transparency=good.) noticed
obscuration on a bright spot on the south east wall. This spot
was quite prominent through a red Wratten 25 filter. The floor
was very dark. Other craters were checked and were normal. A
sketch was supplied and the position was the same as in other
earlier reports. Cameron 2006 catalog extension ID=60 and
weight=3. ALPO/BAA weight=3.
Mons Piton 1984 Mar 14/15 UT 19:18-01:48 Observed by Foley
(Kent, England, 12" Reflector seeing I, Transparency Very
Good) "Colouration and brightness seen on Piton (CED used)"
BAA Lunar Section Report. ALPO/BAA weight=1.
Plato 1984 Mar 14/15 UT 19:18-01:48 Observed by Foley (Kent,
England, 12" Reflector seeing I, Transparency Very Good)
"Obscuration and colour seen on Plato" BAA Lunar Section
Report. ALPO/BAA weight=2.
Plato 1987 Feb 10 UT 21:05-22:10. M. Cook (Frimley, UK), "NE
ray distinct & also floor E of it, not distinct as on Dec 13 &
Jan 11, while March 10, 11 & 12 seen by Price, North, Peters,
Foley & M Cook, where rim was clear and sharp." - quote from
the 2006 Cameron Catalog extension - TLP ID=297 and weight=5.
Cameron gives the observers confirming this TLP as: M. Cook,
G. North and Davies. ALPO/BAA weight=2.
Aristarchus 1972 Oct 19 UT 17:55-18:05 Observed by Gabriel (Wettern,
Belg. 4" refractor, x166, S=E), Hitchens (Stamine Locks, Eng., 8.5"
reflector, S=F), Peters (Kent, Eng., 10" relector), Amery (Reading,
Emg. 10?" reflector), Flynn (england, 12" reflector) "At 17:55h noted
bluish-purple color area just N. of Aris. & it reached just over N.
wall, lasted 2 min. At 1800h color noted again, but not as brilliant &
gone at 1801h. Seen again at 1804h & now was on E. (ast. ?) wall,
lasting M 1min. Sure of its reality but not of lunar origin. All gone
at 1805h. Hitchens noted a very bright spot on W. (IAU?) wall between 2
prominent bands. Blue darkening in W#38 filter, neg. in W#8,25,58 &
integrated light. Other areas gave similar but lesser effects. May be
due to damp geletin. (Moore thinks not LTP but many obs. have rep't
blue in Aris.) Others obs. later (2100, 2215-2300, 2305h) & noted
nothing unusual." NASA catalog weight=2 (low). NASA catalog ID #1346.
Kepler 1954 Nov 07 UT 23:20 Observed by F.A. Lugo (Caracus,
Venezuela, 3.5" scope x125) Bright red star=like point just
outside E.wall - visible for an hour. NASA catalog weight=3.
NASA catalog ID #580. ALPO/BAA weight=3.
On 1993 Sep 28 at UT 04:30-06:10 S.Beaumont (Cambridge, UK)observed
that the north east edge of Herodotus appeared as a "highland area
spilling over into" the Cobra's Head border or "overlook". The shadow
on the elevation was contiguous with a similar shadow over the Cobra's
Head "like a darkening of the terrain. Shadow appears softer diffused
without sharp bounds of most Lunar shadows. sketch. S. edge of crater
started to appear at 0615". The Cameron 1978 catalog ID=468 and the
weight=2. The ALPO/BAA weight=1 as the date or UT are wrong.
Plato 1972 Oct 19 UT 20:10 Observed by Taylor, Phillips, Ford, Kennedy
(Dundee, Scot. 10" refractor) "Taylor noted a slight blink on NW wall.
Ford said it was neg. Phillips was not sure. Taylor returned to
telescope & no blink. Kennedy reported neg." NASA catalog weight=1
(very low). NASA catalog ID #1347.
Foley, Kent, UK noted that the floor was slate blue-grey
with no colour seen elsewhere. 12" reflector used, seeing=II.
Cameron 2006 extension catalog ID 131 and weight=1. ALPO/BAA
weight=1.
Herodotus 1969 Jan 01 UT 03:15 Observed by Taboada (Mexico)
"Brightness in edge of crater dimmed & a heavy darkness was
noted thru course of cleft (Schroter's Valley?). (alerted for
tidal predict.?)"NASA catalog weight=1. NASA catalog ID #
1113. ALPO/BAA weight=1.
Plato 1870 May 12 UTC 22:00 Observed by Birt (England)
"Extraordinary display of lights. Says not effect of sunlight"
However an article by Nigel Logshaw in the Feb 2014 LSC suggests
that it was probably just normal fine scale spots and streaks on
the floor of the crater. NASA catalog weight=4. ALPO/BAA weight=
1. NASA catalog ID #167.
Plato 1986 Dec 13 UT 20:30 Observed by A. Cook (Frimley, UK,
seeing III) North East quadrant of Plato the crater was blurred
and ill-defined. Also no craterlets visible anywhere on the
floor of Plato until the central craterlet was just glimpsed
later at 23:00-23:45, though seeing now III-IV (cirrus at times
in the sky). At this later time the NE rim was less blurred than
before. ALPO/BAA weight=1.
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.
Variations in vapor column rising from the Cobra Head feature
(seen on several nights in succession) and also in the visibility of
craterlets A, C, F. Sunrise +2d. (time est. fr. gives colongitude).
Cameron 1978 catalog ID=279 and weight=3. Pickering was observing from
the southern station of Harvard University in Arequipa, Peru.
Manilius 1939 Jun 30 UT 06:05 Observed by Haas (NM?, USA, 12"?
reflector) "Dark area in S. part was I=2.0 but was I=3.7 on 7/30/39.
Obs. conditions were very similar." NASA catalog weight=4 (high). NASA
catalog ID #449.
Aristarchus 1975 Sep 18 UT 21:00? Observed by Foley (Kent,
England, 12" reflector) "Deep blue-viol. spot in NW (IAU?)
interior corner." NASA catalog weight=3. NASA catalog ID #1414.
ALPO/BAA weight=3.
Aristarchus 1969 Nov 22 UT 18:20-21:13 Observed by D. Cutts
(Chester, Eng., 8.5" reflector, x200), Moore (Sussex, Eng., 12"
reflector x425), Miles (Coventry, Eng. 5" refractor), Delaye and
Jourdran (Marseilles, Fr., 8" reflector) "Pulsating patch on W.
wall between 2 radial bands. Faded by 2000h. Returned to normal.
(Cutts). Miles saw strong pink in whole interior at 2112h.
Strong blink. No blink there at 2210-2212h. Gass., Grim., &
Plato were neg. Delaye & Joudan photog. it as very bright. Moore
got neg. results at 2135. (confirm. of activity?, Apollo 12
watch)." NASA catalog weight=5. NASA catalog ID #1226. ALPO/BAA
weight=3.
Plato 1870 May 13 UT 22:00? Observed by Pratt (---), Elger (Liverpool,
England), (Gledhill (Brighton, England) "Extraordinary display of
lights. 27 seen by Pratt, 28 by Elger, only 4 by Gledhill. (independ.
confirm. ?" NASA catalog weight=5 (very good) NASA catalog ID #168.
A bit more of a detailed report is as follows: "Upon the 13th of May,
1870, there was an "extraordinary display," according to Birt: 27
lights were seen by Pratt, and 28 by Elger, but only 4 by Gledhill, in
Brighton. Atmospheric conditions may have made this difference, or the
lights may have run up and down a scale from 4 to 28. As to
independence of sunlight, Pratt says (Rept. B.A., 1871-88), at to this
display, that only the fixed, charted points so shone, and that other
parts of the crater were not illuminated, as they would have been to an
incidence common throughout.(30) In Pratt's opinion, and, I think, in
the opinion of the other observers, these lights were volcanic."
ALPO/BAA weight=4.
Mobberley of Suffolk, UK, and using a 14" reflector and
seeing=I-II saw yellowish/brown streaks within Aristarchus. A
sketch indicates that these extended from a region on the east
floor to the north west corner, and then finally onto the
bands on the west wall. Cameron 2006 extension catalog ID=132
and weight=4. ALPO/BAA weight=1.
Aristarchus area 1955 Sep 30 UTC 20:45 Observed by Firsoff (Somerset,
England, 6.5" reflector, x200) "Area showed a westward yellow smear,
looked darkish in red, indicating presence of green." NASA catalog
weight=4 (high). NASA catalog ID #614. ALPO/BAA weight=3.
On 1981 Apr 18 at UT 19:50-22:10 M. Mobberley (Suffolk, UK, using a
14" reflector, seeing poor and transparency poor) observed faint-yellow
streaks still visible, but less prominent. Cameron mentions that
Bartlett noticed this colour, but in the south floor of Aristarchus.
Cameron 2006 catalog ID=133 and weight=3. ALPO/BAA weight=2.
Aristarchus 1972 Oct 21 UT 2:10-22:45 observed by Schnuchal
(52.5N, 13.25E, 600mm f/11.7 reflector, T=1, S=3) "Bright spot
with maximum intensity at 22:10 UT diminution in brightness
well observable" - Hilbrecht and Kuveler, Earth, Moon &
Planets, 30 (1984),p53-61. ALPO/BAA weight=1.
Aristarchus-Herodotus 1969 Jan 03 UT 03:20-03:50 Observed by
Taboada (Mexico) "Brightness between craters dimmed at 0345.
Change in colouration in N. part of Aris. -- gray & slightly
pinkish. Became more remarkable at 0350 in almost all the
extension of the cleft, (Sch. Vall. ?)." NASA catalog weight=3.
NASA catalog ID #1114. ALPO/BAA weight=3.
Manillus 1955 Aug 03 UTC 21:00 Observed by Firsoff (Sommerset, England,
6.5" reflector, x200) "Maniluus very bright in all colors, especially
blue, extraordinarily so" NASA catalog weight=4 (good). NASA catalog ID
#602.
Timocharis 1955 Aug 03 UTC 21:00 Observed by Firsoff (Sommerset,
England, 6.5" reflector, x200) "Crater was bright in blue, seemed large
& diffused." NASA catalog weight=4 (good). NASA catalog ID #602.
Aristarchus-Herodotus 1969 Jan 04 UT 03:00-03:45 Observed by
Taboada (Mexico) & Corralitos Observatory (Organ Pass, NM, USA,
24" reflector + Moon Blink) "Brightness increased slightly
around Herod. & cleft (S.V?) became darker than previous day.
The dark gray & pink formed yellowish at 0345h in whole region
of Aris. Bluing around crater in Corralitos MB (photos?)
(confirm. of activity at Aris.?)" NASA catalog weight=5. NASA
catalog ID #1115. ALPO/BAA weight=3.
Aristarchus-Herodotus 1969 Jan 04 UT 03:00-03:45 Observed by
Taboada (Mexico) & Corralitos Observatory (Organ Pass, NM,
USA, 24" reflector + Moon Blink) "Brightness increased
slightly around Herod. & cleft (S.V?) became darker than
previous day. The dark gray & pink formed yellowish at 0345h
in whole region of Aris. Bluing around crater in Corralitos
MB (photos?) (confirm. of activity at Aris.?)" NASA catalog
weight=5. NASA catalog ID #1115. ALPO/BAA weight=1.
On 1988 May 11 (UT 20:30-20:55) C. Brook (Plymouth, UK, 60mm
refractor, x28) found Aristarchus to be brighter than he would
have expected. Compared to Proclus and Tycho. He observed from
20:55-22:38 and found it to be normal in brightness over this
time. The ALPO/BAA weight=1.
Aristarchus 1973 Nov 10 UTC 20:00? Observed by Coates (England, 8"
reflector x200, Moon at gigh altitude above horizon). "Attracted to
crater because of an orange hue extending towards Herod. Has seen this
at other times. Thinks not a LTP, but actual color on ground."NASA
catalog weight=2 (low). NASA catalog ID #1381.
Observed by Bartlett (Batimore, MD, USA, S=4, T=5) "E.wall? blue
glare. He was uncertain @it. Couln't focus it. Herodotus
unaffected." NASA catalog weight=4. NASA catalog ID 581.
ALPO/BAA weight=2.
Aristarchus 1954 Nov 12 UTC 02:20-03:05 Observed by Bartlett
(Baltimore, MD, USA, S=5-6, T=3-4) "Blue-violet glare on EWBS &
whole length of E. wall. Suspected viol. tint on VA; uncertain @
m" NASA catalog weight=4. This had faded later by 05:07. NASA
catalog ID #582. ALPO/BAA weight=2.
On 1996 Jul 31 at 22:40UT P. Moore (Selsey, UK, 15" reflector, x300)
noticed a lack of detail in the Cape Agarum area - he would normally
have expected to have seen some craterlets. However he would not rate
this observation much because the seeing was only III and he does not
think that it was an obscuration. However just in case he wanted to
record this report in the archives. ALPO/BAA weight=1.
Alphazen Alpha 1972 Oct 23 UT 22:10?-22:13? (Stoke-on-Trent, UK,
21cm Newtonian, x217, seeing very good). Flickering colours seen
on the north field of Alhazen Alpha mountain. Above UTs
estimated by the observer, but the duration of the effect was 3
minutes. Colouration centred on the hills that run north to
south between Mare Anguis and Mare Crisium. The colour
alternated from east to west about 2 or 3 times per second. The
colour was not apparent to the north or south, or indeed on any
other features. Telescope field of view moved, but effect stayed
in the same place on the Moon. Moon't terminator scanned for 15
minutes afterwards, but the effect did not recur. The colour
seen was mostly red, with a band of orange, and a strip of
yellow nearest the hills, the proportions being 6:2:1. The bands
seemed to arc up steep above the Moon's surface and flatten out
over the mare surface either side of the hill features. No
filters were used in the observation. Observer suspects some
kind of diffraction spectrum to explain the larger dispersion in
the red end of the spectrum. ALPO/BAA weight=3.
Schroter's Valley: Cobra Head 1824 Nov 08 UTC 00:00? Observed by
Gruithuisen (Munich, Germany) "Mingling of all colors in small spots.
Described a violet glimmer near Cobra Head & plateau that spreads;
starts just after sunrise. Cameron 1978 catalog weight=4 and catalog
ID=103. The ALPO/BAA catalog weight=3.
Plato 1870 Mar 19 UT 00:00? Observed by Gledhill? (halifax,
England, 9" refractor) "Same group (of craters) as in Feb.
illuminated. (if phase same as Apr. 1970 then date is Mar 19"
NASA catalog weight=2. NASA catalog ID #165.
ALPO/BAA weight=1.
On 2006 Jan 16 at 05:44UT T. Bakowski (Orchard Park, NY, USA) observed
a round dark object in 1 of 21 frames from a camera. The exposure was
1/250th sec. Seeing conditions were bad. The dark spot is east of Mons
Vinogradov, at or near crater J. ALPO/BAA weight=1.
Schickard 1939 Aug 02 UT 00:01 Observed by Moore (England,
12?" reflector) "Floor milky, walls almost vis. 2 bright pts.
in area. not extending to extreme w.part of floor" NASA
catalog ID #456. NASA catalog weight=4. ALPO/BAA weight=3.
Proclus 1958 Jul 03 UT 06:18-07:15 Obsrved by Bartlett (Baltimore, MD,
USA, 5" reflector, x180, S=5, T=3) "Proc. C a remarkable phenom. of
which he is certain. At beginning of obs. C was 5 deg bright &
conspicuous -- its normal appearance at or nr. SS. At 0620 it suddenly
became dull so as to almost vanish. By 0640 C was very dull-- 3.5 deg.
An indep. check was made at 0715 with same instru. & it was still at
3.5 deg. Note C does not mean Proclus C but a notation system developed
by Bartlett for features in and around Proclus". Cameron's 1978
NASA catalog weight=4 (high). Cameron's 1978 NASA catalog ID #688.
ALPO/BAA weight=3.
Cleomedes Alpha 1993 Sep 03 UT2200-22:20 G. North (UK, 18.25"
reflector, x86 & x144) observed it to be a strikingly brilliant
'splodge' seen in the mostly shadow filled interior of
Cleomedes, and around this splodge was a faint halo extending
symetrically in an eastwards direction. The splodge was the
mountain Cleomedes Alpha. Strangely no shadow from the mountain
was seen to be cast onto the halo on the east. Observer alerted
other observers by phone, and upon returning to the scope found
that the splodge had faded in brightness and continued to fade
over the next hour as one would expect from a mountain at
sunset. Some heavy spurious colour was present. J. Cook & M.
Cook (Frimley, UK) observed at 22:20-22:25 and found the bright
splodge, but no halo. M. Cook re-observed later and confirmed
normal fading of splodge. Roscoe observed from 00:30UT next day,
but by that time Cleomedes Alpha had set and was no longer
visible in the shadow filled floor. S. Beaumont had observed
earlier at 20:00 but had recorded all as normal in Cleomedes.
The Cameron 2006 catalog ID=466 and weight=5.
The ALPO/BAA weight=2.
Madler 1962 Apr 22 UTC 08:24 Observed by Wildey, Pohn (1st measurement)
(Mt Wilson, CA, USA, 60" reflector with photometer) "Photometric
measures show change in brightness from Vmag=3.79 to V=4.40. The
average brightness for age 17d is V=3.99. Crater faded from .2 mag
brighter than av. to .4 mag. fainter (@1.5 times fainter) than av., a
range of .6 magnitude, or @ 1.5 times diff. in brightness". NASA
catalog weight=5 (very high). NASA catalog ID #757.
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.
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.
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.
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.
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.
Jansen 2013 Aug 26 UT 00:30-01:30 P. Grego (Cornwall, UK, 20cm
SCT, x200, seeing II, transparency good) observed a dark patch
just east of Jansen D. He had not seen this before. There maybe
a depression here hinted at in LOLA ndata. ALPO/BAA weight=1.
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.
On 2009 Sep 09 UT23:31:43 P.Grego (St Dennis, Cornwall, UK, seeing II-
III) suspected a flash south of Cabeus, just beyond the terminator.
It was not bright, and lasted a fraction of a second. Thinks it might
have been illusory as he saw some fainter flashes (cosmic rays?)
during that nights observing session. ALPO/BAA weight=1.
Aristarchus 1974 Sep 08 UT 04:45-06:30 Observed by Cowan and Johnson
(Dublin, TX, 8" reflector, x59, x152, S=7) "Saw a bright luminous,
blue, misty cloud on th NE rim. Obscur. for 1st hr. then gave way to
pink & features became vis. Cloud was tear-drop shape. No movement to
glow. Pink cloud glowed too. Very tenuous by 0130h. (Nakamura says
there were no seismic events within several hrs. of this time). Another
person saw it without being advised as the where it was." NASA catalog
weight=5. NASA catalog ID #1393. ALPO/BAA weight=4.
On 2009 Sep 11 UT00:15-00:20 and 01:00-01:05 C.Brook (Plymouth, UK, 5"
O.G., x100, seeing tremourlous but definition improving over time)
noticed that the central peak(s) in Alphonsus were brightening
gradually. No effect was seen earlier at UT23:30-23:35. One presumes
that the effect also occured between these two observing times?
The observer suspects that this was not a TLP, but is uncertain.
ALPO/BAA weight=1.
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.
On 2009 Sep 11/12 UT23:28-00:00 M.C. Cook (Mundesley, UK, 90mm Questar,
x80 and x190, seeing II and transparency moderate-poor) observed
pink on the north west rim of Tycho and green-blue on the inner
SW rim. No sign of colour elsewhere on the Moon except for the
S-E rim of Plato that was red. The Moon was about 20 deg in altitude
at the time. The effect had gone by the end of the observing period.
A simulation of spurious colour in different directions
was generated by the BAA Lunar Section and found to possibly account
for these colours, although there should have been some strong colours
seen elsewhere in Tycho and none were. The BAA/ALPO weight=2.
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.
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.
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.