On 1991 Jul 31 at UT 07:50 D. Louderback (South Bend, WA, USA, 3"
refractor) observed that the south floor of Aristarchus was wellow -
"almost gold, spilled over S wall on ray toward Herodotus". Cameron
comments that Bartlett often reported a yellow floor but not a spill of
the colour over to the external ray. Cameron also comments that
Louderback's refractor would refract more in blue light than in yellow,
therefore she did not think that it was due to chromatic aberation. The
Cameron 2006 catalog ID=431 and the weight=3. The ALPO/BAA weight=2.
On 1991 Jul 31 at UT 07:50 D. Louderback (South Bend, WA, USA, 3"
refractor) found that all of Mons Piton was "unusually dark". Points D,
C (E and S resp), usually brightest points, but this time were not
bright. "Whole mt was as dark as W wall usually is at this time. In
violet filter Piton disappeared completely, but was a little brighter
in red filter and points D & G showed. Color not seen by eye. No albedo
measured. Suggests red event." Cameron rules out chromatic aberation
from Louderback's refractor. The Cameron 2006 catalog ID=431 and the
weight=3. The ALPO/BAA weight=1.
On 1974 Jun 12 at UT0256 an unknown observer noted a dark blob on the
northern edge of the floor of Pitatus crater.
In about 557AD (Month, Day and UT unknown), Gregory of Tours
observed a light on the Moon near the centre. The ALPO/BAA
weight=1. Note some say this was during the Dec 11 lunar
eclipse.
In 1835 Dec 22 at UT17:00-18:30 Piazzi-Smyth (Edinburgh, UK) at 18:30UT
observed near Aristarchus a bright spot of magnitude 9-10 and at
17:00UT Baily (England) observed a star-like point, in Aristarchus.
The Cameron 1978 catalog ID=113-114 and the weight=5. The ALPO/BAA
weight=3.
Thales 1892 Apr 04 UT 04:00-04:30 Observed by Barnard (Lick
Observatory, CA, USA, 36" refractor?, S=4/5) "Filled with pale luminous
haze tho all surrounding features were sharp & normal. Walls also hazy
(Drawing)" NASA catalog weight=4 (high). NASA catalogue ID #276.
On 1989 Feb 09 at UT 19:00 Ashton (Stafford, UK, seeing=V) observed a
"green glow in the "peninsular region" of Cape La Place (south of poss.
Helicon A?) and brown on the Earthlit limb. Foley (Kent, UK, 12"
reflector) noticed a "pin point glow surrounded by blue-green halo"
through a blue filter, but not seen through a red filter. He also
suspected some brightness variations. He noted that Aristarchus was
barely seen and Copernicus was only a faint smudge, presumably because
of the bright limb? J. Cook (Frimley, UK) observed a white glow in the
Cape region (made up of pin points?) - no other places had a similar
effect. P. Moore (Selsey, UK, 12" reflector) reported that nothing
unsual was to be seen anywhere on the Moon. M. Cook (Frimley, UK) found
a "bright point source near the tip of LaPlace perhaps maupertius D (or
LaPlace D?)." This was seen in a blue filter but not through a red
filter - the limb was also seen as bright and the cape as a faint
patch. Holmes (Lancashire, UK, 30"? reflector or refractor?) although
commenting that Aristarchus was a bit dull, could not see the Sinus
Iridum glow, North (UK) could only detect the vague presence of
Earthshine throug his finder scope, but not in his telecope. The
Cameron 2006 catalog ID=349 and the weight=2. The ALPO/BAA weight=3.
On 1982 May 26 at UT 20:25-20:40 Kalauch (Berlin?, Germany, 9"
refractor, x60, T=1(best) and scintilation=2) found Aristarhus to be
"very visible" in Earthshine - which was very clear. At 20:25 UT
Aristarchus was seen to blink irregularly and then it attained
magnitude 7 (red). Telescopes and eyepieces were changed but did not
effect the appearance. It disappered at 20:40UT. Cameron 2006 catalog
ID=168 and weight=2. ALPO/BAA weight=2.
In 1909 May 23 at UT 18:00? an unknown English observer observed a
bright spot east of Picard. The Cameron 1978 catalog ID=330 and the
weight=1. The ALPO/BAA weight=1.
On 1965 Dec 27 at UT Bornhurst (Monterey Park, CA, USA, 10" reflector)
and (Harris (Whittier? CA, USA, 19" reflector?) observed brightening of
Aristarchus in Ashen light. Cameron says that this is an independent
confirmation? The Cameron 1978 catalog ID=918 and weight=4. The
ALPO/BAA weight=2.
On 1977 Sep 17 at 16:30UT V.M. Chernov (Soviet Union) observed the
northern cusp of the Moon to be elongated more than 180deg ashen light.
This was 4.3 days after new Moon. The ALPO/BAA weight=1.
On 1982 May 27 at UT 17:05-17:35 E.V. Arsyukhin (Moscow, Russia, 3"
reflector) found Endymion had a dark spot in the middle for about 30
min. The Cameron 2006 catalog ID=169 and weight=3. The ALPO/BAA
weight=2.
On 1982 May 27 at UT 17:05-17:35 E.V. Arsyukhin (Moscow, Russia, 3"
reflector) found Lacus Sominorum was very bright, misty and the colour
varied. It was back to normal on the 28th and abnormal on 29-31st. -
had a dark spot in the middle for about 30 min. The Cameron 2006
catalog ID=169 and weight=3. The ALPO/BAA weight=2.
On 1989 Feb 10 at UT 18:15-18:40 Holmes and Wooler (Lancashire,
UK, 22cm Newtonian, x155) found Aristarchus to be bright, but so
too was Prinz. However in a 2nd observing session at 21:05-21:10
an area near crater both regions werestill visible but fainter.
The Cameron 2006 catalog ID=350 and weight=3. The ALPO/BAA
weight=1.
On 1989 Feb 10 at UT 19:00? D. Holmes and Wooler (Lancashire, UK) found
area near Prinz to be bright, but so too was Aristarchus crater. The
Cameron 2006 catalog ID=350 and weight=3. The ALPO/BAA weight=1.
On 1989 Feb 10 at UT 19:00? Edmonds (England) observed a
"bright red coppery" colour in the northwestern part of
Proclus crater. He checked and found that there was no colour
elsewhere, though he still suspects that the effect was
spurious colour. Cameron comments that usually blue
is seen in the north and red in the south if due to spurious
colour. The Cameron 2006 catalog ID=350 and the weight=3. The
ALPO/BAA weight=1.
On 1986 Mar 15 UT 19:51-19:55 A. Cook (Frimley, UK, Naked Eye
and 12" reflector, x60, seeing IV, transparancy poor)
observed a naked eye flash at 19:50.5 UT in the Mare Nubium
area. The flash was white in colour and lasted not longer
than 0.5 sec and was about magnitude 2 at most in brightness.
There was no rise or fade associated with this flash. Upon
checking the area with the telescope, the observer reproted
seeing a faint fuzzy small patch that came and went over
several seconds in the same general area - but this may have
been due to the seeing conditions and/or glare from the
bright side of the Moon. The patch area was about the same
size as Aristarchus, i.e. approx 40 km across. Note however
that observing conditons were too poor that night to see
Aristarchus. At later observing sessions from 20:30UT
onwards, the patch was not seen. The ALPO/BAA weight=3.
On 1985 Apr 25 at UT 21:34-22:04 H. Miles (England) observed
Aristarchus within Earthshine. Foley (Kent, UK, 12" reflector) had
observed it one hour prior to Miles and found it to be both dull and
blue - with a bright patch west of the crater on Aristarchus Upsilon
Mountain. At 21:45UT 6 star-like flashes seen on the floor. They
occurred again a few minutes later and repeated at 22:04UT.By 21:45UT
the bright patch had gone though. Smith (England) had also apparently
seen the flashes and a further glow, albeit more north of the one seen
by Foley. Miles confirmed Smith's glow north of Aristarchus.
Peters did not see much, indeed found Aristarchus to be quite
faint (2130-2141). The Cameron 2006 catalog ID=264 and the
weight=3. The ALPO/BAA weight=2.
Curious lack of detail, but this may have been related to
the seeing. Of greater interest though was a dark blue
splodge where the crater should have been. Shadow seen through
this splodge, but no crater rim seen.
A faint white pinpoint flash seen and also in the same position
a whitish glow around the crater. No futher flashes seen after the
first one. From UT2117-2130 the glow was still visible but faded
making it more difficult to locate. When Foley observed he found
Aristarchus not very visible in Earthshine, despite Plato, Grimaldi,
and several other features being visible. Both observers used
12" reflectors. Cameron's 2006 catalog Extension ID=124 and
weight=0. ALPO/BAA weight=3.
Burg 2020 Dec 20 UT 19:00-20:08 (T.Smith, Codnor, UK, 16"
Newtonian, seeing III-IV) observed visually that this crater
was very red on its western floor and rim. A similar effect
seen in Plinius, elsewhere on the Moon. No red was seen to the
exterior of both craters. The redness on both of these craters
had become diluted by 19:40. Also around this time, it was
noted that Proclus had a slight redness to its western
interior, though by no means as strong as in Burg and Plinius.
A comparison with Censorinus revealed no redness to this
crater. By 20:08 Burg was only showing a hint of red at times.
ALPO/BAA weight=1.
Plinius 2020 Dec 20 UT 19:00-20:13 (T.Smith, Codnor, UK, 16"
Newtonian, seeing III-IV) observed visually that this crater
was very red on its western floor and rim. A similar effect
seen in Burg, elsewhere on the Moon. The central peak of
Plinius was very easy to see and also looked red in colour. No
red was seen to the exterior of both craters. The redness on
both of these craters had become diluted by 19:40. Also around
his time, it was noted that Proclus had a slight redness to
its western interior, though by no means as strong as in Burg
and Plinius. A comparison with Censorinus revealed no redness
to this crater. By 20:08 Plinius still had a slight red hue
but Burg was only showing a hint of red at times. Observations
ceased at 20:14 due to the Moon being hidden by an
obstruction. ALPO/BAA weight=1.
Theophiuls 2020 Dec 20 UT 19:00 (T.Smith, Codnor, UK, 16"
Newtonian, seeing III-IV) observed visually that the central
peak of this crater appeared excessively/abnormally bright to
his eyes. ALPO/BAA weight=1.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johnson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
Proclus 2020 Dec 20 UT 19:40 (T.Smith, Codnor, UK, 16"
Newtonian, seeing III-IV) observed visually and noted that
Proclus had a slight redness to its western interior, though
by no means as strong as in Burg and Plinius which exhibited
stronger red colours. A comparison with Censorinus revealed no
redness to this crater. ALPO/BAA weight=1.
On 1994 Jun 14 UT 21:45-22:00 G.Rogers (Crendon, UK, 3" Zeiss
refractor, sky conditions perfectly clear) reported seeing three
very large whitish clouds against the Moon. The strongest seemed
to "stem" from the vicinity of Santbech crater (crater
identified the next day from an atlas), and was a milk chocolate
colour near the stem. The other two large clouds were to the
north - in the general area of Mare Fecunditatis and Mare
Crisium though perhaps slightly further west and in contact with
the terminator? The effect was confirmed (independently) by 4
other observers using the same telescope. The telescope was
moved but the clouds remained in the same position over the
Moon. This report comes from The Astronomer Jan 2013 p 230.
ALPO/BAA weight=1.
On 1989 Feb 11 at UT23:30-01:39 D. Darling (Sun Praire, WI, USA, 12.5"
reflector, x159, seeing=7/10) observed a linear east to west feature in
Proclus. D. Weier (WI, USA, 11" reflector, x378) found the NNW part of
the crater to be brighter than expected and confirmed the prescence of
the east to west feature - this crossed the shadow on the east floor
and over into Mare Crisium. R. Manske (WI, USA) detected another
"streak" parallel to this. All observers suspect that the linear
features were due to raised topography on the floor of Proclus -
however Cameron comments that there does not seem to be any linear
features on the floor of Proclus to cause these effects. The Cameron
2006 catalog ID=351 and the weight=5. The ALPO/BAA weight=2.
Kant 1873 Jan 04 UT 23:00? Observed by Trouvelot (Cambridge, Mass, 8"
refractor) "Luminous puplish vapors" NASA catalog weight=3 (average).
NASA catalog ID #180.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
On 1981 Mar 12 at UT 19:25-20:30 Butler (of Brixton, UK, using a
10" reflector at 32-64x) noticed that Aristarchus was not
visible, although the Earthshine was very obvious. Foley (of
Kent, UK, and using 12" reflector) noticed that the crater was
only just visible but Plato could definitely be seen. Cameron's
2006 TLP extension catalog ID=125 and weight=0. ALPO/BAA
weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
G Johnson of Swanton, MD, USA used a 2" refractor at f/12.
Aristachus revealed as a red spot on a photo of the Moon. This
was similar to another photo obtained on 1988 Apr 21st. Frame (with 3
exposures present)reveals a dim star like point near Campanus on
exposure 1. Expsoure 2 shows it a little east on the Earth-lit
part. Exposure 3 shows it off the south-east limb. Apparently 20
minutes later took 2 exposures and frame 18 was a double. The
second exposure revealed an object farther from the limb but the
first exposure does not show the object. The two high power exposures
do not show it. Cameron could not see the spots that Johson describes
on his slides, but did see several spots (defects?) on the
8 and 12 second exposures near Hevelius and also on the 20 second
exposure near to Hecataeus only. BAA members observed star like
flashes a few hours earlier - near Aristarchus. One BAA member, Madej,
had seen a green glow in Arisarchus in two places in two eyepieces.
Cameron 2006 Catalog extension ID=265 and weight=2.
In 1948 Apr 15 at UT 20:00? Vince (England, UK) observed a bright spot,
about magnitude 3, in Earthshine, about 30deg north of Grimaldi., on
the west limb (90W, 25N). The Cameron 1978 catalog ID=503 and the
weight=3. The ALPO/BAA weight=3.
On 1789 Sep 26 at UT 03:30 Schroter (Lillienthal, Germany) observed
close beneath Mons Blanc at the west foot, in the dark, a small 5th
magnitude, speck of light. Its round shadow was sometimes black,
sometimes grey. Cameron suspects that this is the same as her TLP
report No. 50. the Cameron 1978 catalog ID=62 and weight=4. The
ALPO/BAA weight=3.
On 1789 Sep 26 at UT04:25? Schroter (Lillienthal, Germany)
noted a bright point 26" north of Aristarchus crater. Note
that the year might have been 1788? The Cameron 1978 catalog
ID=50 and the weight=3. The ALPO/BAA weight=3.
On 1789 Sep 29 at UT04:25? Schroter (Lillienthal, Germany) noted
1'18.5" south east of plato was a whitish bright spot shining somewhat
hazily, 4-5"in diameter and at 5th magnitude. He never saw this again.
The spot became conspicuous at times and then disappeared. There was
nothing else similar in Earthshine. Note that the year might have been
1788? The Cameron 1978 catalog ID=50 and the weight=3. The ALPO/BAA
weight=3.
Schroter, from Lillenthal in Gemany, in 1789 (possibly it was
1788) Sep 26 UT 04:30 saw a small nebulous bright spot on the
northern edge of Mare Crisium. Cameron 1978 catalog ID=50 and
weight=3. ALPO/BAA weight=1.
On 1895 Sep 25 at UT 20:00? Gaboreau (Paris, France) observed on the
Moon s shaft of light (same observation as Cameron's TLP report #281
and further more it is on the same day and month as it was back in
1893. The Cameron 1978 catalog ID=286 and weight=0. The ALPO/BAA
weight=1.
Pickering 1971 Jan 04 UTC 20:29-20:37 Observed by Collier (London,
England) "Between Saunder and Rhaeticus, apparently coming from Pick.
After 2027h it dimished with extraordinary swiftness, like a light goes
out. (experienced observer)" NASA catalog weight=?. NASA catalog ID #
1281. Note that this crater was previously called E.C. Pickering before
the IAU renamed some craters.
2004 Nov 20 UT 01:43:36 R. Spellman (120mm F8.3 refractor at
prime focus, PC23C CCTV camera, via a DVD recorder) recorded
a flash of light. The ALPO/BAA weight=1.
Mobberley and Foley note that Aristarchus was very
prominent in Earhshine. Little other detail seen
in Earthshine other than the limb. The Cameron
2006 extension catalog then says: "Confirm moving
side to side. Saw bright blue spot in center" however
it is unclear whether this refers to Aristarchus,
or Torricelli-B - the latter was also undergoing a TLP
at this time. Cameron 2006 extension catalog ID=267
and weight=5 (confirmed?).
On 1985 Apr 27 UT 22:00 M. Mobberley (Suffolk, UK) could not see much
detail in Earthshine (apart from Aristarchus), except that there was a
brightness on the western limb of the Moon. The Cameron 2006 catalog
ID=267 and the weight=5. The ALPO/BAA weight=1.
2004 Nov 20 UT 02:34:03 R. Spellman (120mm F8.3 refractor at prime
focus, PC23C CCTV camera, via a DVD recorder) recorded a flash of
light. The ALPO/BAA weight=2.
On 1973 Dec 02 at UT 22:17:33 Barrett and Brick (New York, 3.5" Questar
freflector) observed an occultation of Kappa Aquari, a wide double
star, on the western limb. The star faded perceptably before
disappearing. Cameron says that the fact that the star was a double was
not an explanation - she says that there are many reports of similar
fades for single stars. The Cameron 1978 catalog ID=1384 and weight=4.
The ALPO/BAA weight=1.
2004 Nov 20 UT 03:12:29 R. Spellman (120mm F8.3 refractor at
prime focus, PC23C CCTV camera, via a DVD recorder) recorded
a flash of light. The ALPO/BAA weight=1.
Ptolemaeus 1978 Apr 15 UTC 21:54-22:20 Observed by A.Cook
(Frimley, Surrey, UK, 12" reflector x240, S=IV (Antoniadi))
"Small triangular area on the NW floor of the crater, at the
foot of the rim, was slightly brighter in blue light than in red
(Moonblink used). Suspected this was due to the poor observing
conditions. Certainly blink reaction was not unmistakable".
ALPO/BAA weight=2.
Archimedes 1966 Mar 29 UT 21:00 Observed by Hill (England, 24"
reflector, x250, S=E) "Brightening of E-W bands across floor.
(Obscuration accord. to Moore)" NASA catalog ID #923. NASA
catalog weight=3. ALPO/BAA weight=1.
On 1986 Nov 09 at UT 23:00 Quinn (Glebview, IL, USA, 8" reflector, x49-
x305) found īn the vicinity of an unnamed ridge points toward Pico- two
bright points about 5 magnitudes brighter than any other part of the
Moon. The Alpine valley points directly between these two points. "Came
from apparently featureless area. Both points about the same size, but
different shapes ~ width of alpine valley" The observer used 4
different eyepieces and the points were brightest in the lowest power.
Other specks of light could be seen in the darkness wound the N point.
The Cameron 2006 catalog ID=289 and the weight=3. The ALPO/BAA
weight=2.
In 1922 May 04 at UT Burnerd (England?) discovered three long mounds in
Archimedes crater (rays?). The Cameron 1978 catalog ID=385 and weight=
0. The ALPO/BAA weight=1.
1996 Apr 27 UTC 02:26-03:14 Observed by Spellman (Los Angeles, CA, USA)
" 02:26 U.T. Sunrise on Tycho 3/4 of the crater was in shadow,
topmost section of the central peak was in sunlight. In white light
brightness of the central peak rivaled the brightness of the Eastern
(sunlit) wall. No change was detected in red light, however in blue
light definite strong darkening was observed. Blink obtained when
viewing thru 25A and 38 filters. At 2:52 U.T. in the poor to fair
seeing the apparent size of the central peak in white and red light was
the same, in blue light the central peak in white and red light was the
same, in blue light the central peak size shrank to 1/2 white and red
size (and brightness). Also appearing sharper. Comparison was made also
with the central peak of Alphonsus, no changes were observed. The
significant part of the observation was the relative brightness of the
central peak to the sunlit rim in white and red light, they appeared
almost identical with the crater rim, being just slightly brighter. In
blue light the brightness of the central peak was reduced by at least
half while the rim brightness was not, (relative to one another). I
strongly believe that this was a real event. The shadow filled
portion of Tycho was examined for any abnormalities but none
were observed. Observations were ended shortly after 3:14 U.T. due to
clouds. I also conducted about 20 Moon blink observations during this
observing run and got the same strong reaction each time." ALPO/BAA
weight=3.
Although the crater was on the night side, a small bright spot
was seen. This was blue, almost UV, and equivalent to a star of
magnitude 2. It flashed over intervals of about 30 seconds
and changed in colour from UV to blue. The BAA Lunar Section
TLP network was alerted. Mobberly and J.Cook did not see much
although J. Cook may have seen something, but located else where?
Cameron lists this as a confirmed? observation? The Cameron
2006 TLP xtension catalog has this TLP with an ID No. of 258
and a weight of 4. The ALPO/BAA weight is 2.
Proclus 1967 Apr 18 UTC 18:40-18:45 Observed by Farrant (Cambridge,
England, 8" reflector x175) "Crater appeared quite dark, even bright
ring was subdued & seemed thicker than normal. Drawing." NASA catalog
weight=3 (average). NASA catalog ID #1028. ALPO/BAA weight=1.
Linne 1868 Jul 28 UT 20:00? Observed by Tacchini (Palermo, Italy)
"Shadow not so marked-had a light penumbra, indicated a feeble cavity.
Other craters had a black shad. On 29th appeared completely white.
Crater normal on 26th. (letter to Madler Sep. 16, 1868)." NASA
catalog weight=4 (high). NASA catalog ID #159.
Piton 1958 Sep 23 UT 00:00? Observed by Moore? (UK?) "Enveloped
in an obscuring cloud-like mist" NASA catalog ID 697. NASA
catalog weight=2. ALPO/BAA weight=2.
Messier and A 1966 Dec 22 UT 06:00-06:30 Observed by Kelsey (Riverside,
CA, USA, 8" reflector, x200, S=G, T=P) "Blinks on floors of both
craters (blink device not stated)" NASA catalog weight=2 (low). NASA
catalaog ID #1004.
A region of the Mare Imbrium was extremely bright, giving
a reading of 8 out of 10 on the Elger scale. Cameron notes
that from photos of the Full Moon, the area appears to
normally be the brightness of Archimedes floor i.e. 3.5 out
of 10 on the Elger scale. Atmospheric seeing was excellent
and the observer could see a lot of fine detail with their
2.4" and 3" refractors. Cameron 2006 catalog extension ID=62
and weight=3.
2004 Jan 02 UT 09:05 (approx) M. Collins (Palmeston North, New
Zealand, ETX 90, seeing 3, clear) saw a possible(?) flash north
of Carlini D at about 16W, 35N in adverted vision. It lasted
only a split second. The ALPO/BAA weight=1.
M.C. Cook (Frimley, UK) got an abnormally low brightness reading for
Proclus, despite nearby Censorinus being normal. Crater Extinction
Device used. The Cameron 2006 Extension catalog ID was 163 and the
weight was 3. The ALPO/BAA weight was 2 too.
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.
In 1820 Oct 17 at UT 20:00 an unkown observer reported in Mare Imbrium,
south of Sinus Iridum (30W, 40N) some brilliant spots. The Cameron 1978
catalog ID=80 and weight=1. The ALPO/BAA weight=1.
Plato 1966 Dec 23 UT 06:15-07:10 Observed by Kelsey (Riverside, CA,
USA, 6" reflector, S=P, T=G) and Coralitos Observatory (Organ Pass, NM,
USA, 24" reflector +Moonblink) "3 brilliant spots on floor, all showed
blinks, (permanent colored Ground features ?). Not confirmed by
Corralitos MB." NASA catalog weight=2 (low). NASA catalog ID #1005.
Gassendi 1977 May 28/29 UT 20:45-21:15 Observed by D. Sims
(Dawlish, Devon, UK) saw a hazy area on the south east floor
that was normal in red and white light but darker in blue.
This was partly confirmed by J-H Robinson (Devon, England, 10"
reflector) 21:24-23:12 who saw the south east floor of
Gassendi to have a loss of detail - but no colour seen,
although at 21:57-21:58 it was slightly brighter in red than
in blue briefly. P. Doherty (22:45-23:15) did not see anything
ususual. D. Jewitt (22:22-22:55) did not reveal anything
ususual, apart from spurious colour. The Cameron 1978 catalog
ID=3 and ID=1463. The ALPO/BAA weight=3.
Plato 1982 Jun 02 UT 22:00. Mobberley could not see the
central craterlet on the floor of Plato tonight. Foley notes
that he could only just see the central craterlet on nights of
2-5th Jun and it was of reduced in brightness from normal.
North reported that the floor seemed nearly black, but
brighter in a green filter (x144 magnification used). All
three observers compared the Plato area to other areas for
reference. All the above seems normal, apart from the floor
being brighter in the green filter. Cameron 2006 extension
catalog ID 170 and weight=5. BAA/ALPO weight=1.
A blue tinge was seen inside and outside the crater
perimeter. The surrounding halo lost brightness that
was observed on 1993 Jan 29. Observed on Apr 19, 20 and 28th.
Cameron 2006 extension catalog ID=213 and weight=5.
ALPO/BAA weight=3.
On 1990 Jan 07 at UT 20:20-20:58 G.North (Herstmonceux, UK) thought
that he detected dullness in Torricelli B crater - Cameron comments
that this cannot be shadow). The Cameron 2006 catalog ID=386 and the
weight=3. ALPO\/BAA weight=2.
Deslandre - 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 (upper stage of the
carier rocket?). He detected a tens of km scale elongated
cloud after the impact over a duration of 9.5 minutes. This
was near to Deslandre crater. 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=1.
On 1933 Oct 01 at UT 03:00 Rawstron (USA, 4" refractor, x330) observed
the following in Mons Pico B: "Haze -- much narrower & elongated than
on Sep. 1". The Cameron 1978 catalog ID=407 and weight=3. The ALPO/BAA
weight=2.
Observed by Haas (Las Cruces, NM, USA) "Temporary greyness seen in
interior shadow." ALPO/BAA weight=3.
On 1955 Oct 28 at UT00:00? Kozyrev (Crimea, Soviet Union, 50"
reflector) detected in Aristarchus Fraunhofer lines in UV spectra that
were much narrower than in the solar spectrum. This indicated
luminescent glow which overlapped contour(?) lines. Greatest after Full
Moon, but fluctuated monthly with no indication of solar activity
effect. The Cameron 1978 catalog ID=621 and the weight=5. The ALPO/BAA
weight=5.
On 1955 Oct 28 at UT 00:06 W. Taylor saw a naked eye flash on the Moon
in the north east area, on the edge of Mare Vaporum. The flash was
intense and radiated to a large area. The duration was 1/4 seconds.
Aristarchus 1981 Mar 17 UT 22:40-23:25 Observed by Moore
(Selsey, England, 15" reflector, seeing III) "Aristarchus very
bright according to Crater Extinction Device and a coloured
blink detected" BAA Lunar Section TLP report. ALPO/BAA
weight=1.
On 1965 May 12 at UT 22:20 H. Miles (UK) found a possible
obscuration in Bailly crater. Most of the region was as sharp as
normal, but the central area was greyish and blurred. Although
the observer concerned considered themselves a non-experienced
observer, another BAA Lunar Section observer saw the same
effect. ALPO/BAA weight=2.
Aristarchus Area 2004 Nov 22 UT 04:58-05:49 Observed by Gray
(Winemucca, NV, USA, 152mm f/9 refractor, seeing 4-5, trasparency 4-5,
x114, x228) "Blinked Herodotus with Wratten filters Blue 38A and Red
25. The illuminated west crater wall stood out brilliantly in blue
light, much more so than in white light. This was true also of
Aristarchus. Red light did not increase contrasts in Herodotus any more
than they were in white light. Shadows in Herodotus appeared as black
as the night west of the terminator and remained that way throughout
the observing period. No TLP seen in Herodotus tonight. A possible TLP
was seen to the west of Herodotus near the terminus of Schroters
Valley. It was noted at the beginning of the observing period that
there were four very bright spots of light, one near the end of
Schroters Valley, the other three grouped together a little farther
north. Although not far from the terminator they were definitely east
of it. It was noted that all of them nearly vanished in the Blue 38A
filter while Aristarchus and the rim of Herodotus gleamed brilliantly.
At 5:19UT it was noted that the most brilliant of the four lights, the
one near the terminus of Schroters Valley, had faded almost to
invisibility in white light. When first seen it had been brighter than
Aristarchus. It remained very dim after this through the remainder of
the observing period, and was unchanged at 7:35-7:49UT when I again
examined the area. The other three bright spots remained brilliant and
unchanged."
Aristarchus 1973 Aug 10 UTC 20:14 observed by Baumeister
(48.63N, 9.25E, 110mm reflector, T=2, S=2) "Orange to red
colours at the crater floor disappeared until 21:04" -
Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984),
p53-61. ALPO/BAA weight=2.
Plato 1973 Aug 10 UT 22:45 observed by Robinson (Devon, UK).
Observer noticed that the lighter areas on the floor were more
distinct in red than in the blue filter. ALPO/BAA weight=1.
Proclus 1972 Dec 17 UTC 18:30 Observed by Farrant (Cambridge, England,
8.5" reflector) "Crater appeared very bright (Apollo 17 Watch)." NASA
catalog weight=2 (low). NASA catalog ID #1359.
Herodotus 1966 Nov 24 UT 21:50 H.Hill (UK, 7.25" reflector,
x240), seeing 4-6/10, transparancy 4/5) sketched a central white
diffuse patch inside the floor of the crater, with a size of
about 1/7th the diameter of the crater. The eastern edge of the
white patch was encroached by the shadow of the eastern rim.
ALPO/BAA weight=3.
Blanco, J. Vidal, of Gijon, Spain (3" refractor x72)
noticed an unfamiliar very bright center near to Encke.
Cameron suspects that this was Encke B crater
on the basis that it is a prominent small crater
near to Encke. Cameron 2006 catalog extension ID=410
and weight=2. ALPO/BAA weight=1.
Proclus 1976 Sep 06 UT 02:00 Observed by Bartlett (Baltimore, MD, USA,
4.5" reflector 45-300x, S=3, T=5) "Nothing vis. on floor of 2deg
brightness. Usually floor ray & Proc. A are vis. at this col. & c.p. is
5 deg bright. (must have been 2 deg tonite)." NASA catalog weight=4.
NASA catalog ID #1450.
All observers saw a blue tinge seen inside and outside the
crater. Marshall observed a bright spot in the middle of
the crater floor and thought perhaps that it was a central
peak. No central peak can be found on Lunar Orbiter images.
Cameron 2006 Catalog extension ID=214 and weight=5. ALPO/BAA
weight=4.
Cobra Head, Aristarchus 1964 Feb 25 UT 02:37-02:38, 02:39-02:42
Observed by Budine (Binghamton, New York, USA, 4" refractor, x250, S=6,
T=4) "Red flashes" NASA catalog weight=3 (average). NASA catalog ID #
802.
In 1949 Nov 03 UT 01:06 J.Bartlett (3.5" refractor, x100) noted that
the floor of Herodotus was very dark, the east wall was very bright,
and the floor contained a central bright peak. The BAA/ALPO weight=3.
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.
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.
Aristillus 1972 Dec 17 UTC 21:50-22:20 observed by Berger (51.5N, 9E,
60mm refractor, T=2, S=3) "Diffuse bright cloud in the NE corner of the
crater" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-
61.
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 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.
Amery (Reading, England) saw blue in Aristarchus but a photograph did
not show the colour. Foley thinks this was spurious colour. Cameron
2006 extension catalog ID=27. ALPO/BAA weight=1.
Promotorium Laplace: 1978 Apr 20 UT19:30-22:35 Peter Foley
observed a tiny yellow-brown region close the tip of the cape,
north east of the precipitous west edge, in the face of the
north facing slope. The area concerned was diffuse and varied
in density despite the surroundings not varying. Foley notcied
no colour elsewhere on the Moon, though Amery thought that he
saw some in Aristarchus, but Foley thinks this was spurious.
Cameron 2006 catalog extension ID=27 and weight=5.
ALPO/BAA weight=3.
Vallis Schroteri 1991 Aug 23 UT 02:19-02:49. Flashing spot at
end of SV fluctuated. Herzog, Darling & Weier confirmed spot
but not fluctuation. Spot brighter in red than blue, but Cobra
Head was bright in blue. No other region was abnormal.
Aristarchus-Cobra Head, 1967 Nov 15 UT 05:40-06:00 Observed by Cross,
Tombaugh (Las Cruces, NM, 12" reflector x800) and Harris (Tucson, AZ),
and Dunlap (Organ Pass, NM, 24" reflector with Moonblink). "Obs.
reddish color N. & E. of Aris. & more intense color nr. E.(IAU?) rim of
Cobra Head. Red color nr.C.H. confirmed by Tombaugh. Obtained 10 photos
between 0543-0549h in 3 spectral bands (blue, yellow, red, & integ.
light). No change dur. obs. per. but spot got smaller at moments of
good seeing. Isodensitometry of photos. At Corralitos 0152-0155 on 24-
in image intensifier & filter sys. photoos at 0320-0330h. Harris at
Tucson got spectra. Neither of latter 2 show anything unusual. Its
edges were nebulous even at best seeing. Size @ that of Cobra's Head."
NASA catalog weight=5 (very good). NASA catalog ID #1053.
Peter Foley (Kent, UK, 8" reflector, seeing=II) noticed that
the floor beneath the north wall, and the area over the north
wall were indistinct (almost out of focus). Despite looking
elsewhere in the crater and surrounds, no other blurring
(obscuration of detail) could be seen, indeed everywhere else
was sharp and detailed. Foley tried several eyepieces but this
made no difference. He used a crater extinction device but
found no variations in brightness. There was a slight
darkening when he used a red filter in the Moon Blink device.
The obscuration effect weakened between UT20:56 and 21:10,
was difficult to see at 21:13 and had finished by 00:15.
Patrick Moore (12" reflector, Dublin, Ireland) saw nothing
unusual when he started observing at UT 22:00. Cameron says
"Photos marked at location of phenomenon". Cameron 2006
extension catalog ID=37 and weight=5. ALPO/BAA weight=3.
On 1821 Jan 16 at UT 21:00 S. Cooke (Stonehouse, UK) An
effusion of smoke effect, which lasted about a minute, seen.
It appeared like the fluttering of a bird and passed over the
Moon before it evaporated, and must have been foreshortened,
as it seemed in effect to have passed over the whole disc,
starting from west of Menelaus, and near Plinius. ALPO/BAA
weight=1.
Aristarchus normal in red and blue filters however the
Cobra Head part of Schroter's Valley was brighter in blue.
Indeed it was very dull in red - Louderback says that this
was not surprising as the whole areas around Aristarchus is
brighter in blue. Louderback is an experienced observer
of the Aristarchus area of more than 10 years. Cameron 2006
extended catalogID=63 and weight=1. ALPO/BAA weight=1.
Louderback observed that the south west wall was a creamy deep yellow.
There was also strong fluorescent blue on the west wall of the Cobra
Head - Schroter's Valley area and this was similar to the violet glare
seen on Aristarchus at times. Violet was seen between Aristarchus and
the Cobra Head. Seeing coditions were poor. Brightening of a point
near C occurred roughly every 10-15 seconds and lasted 0.5 sec -
(Cameron concludes that this was not due to the Earth's atmosphere).
A 0.2 step drop in brightness was seen on point A (twin spots).
Point C had reduced by 0.6 steps. Elsewhere was stable in brightness.
Cameron 2006 catalog ID=281 and weight=4. ALPO/BAA weight=3.
Plato 1873 Apr 10 UTC 21:00? Observed by Schmidt (Athens, Greece, 6"
refractor) "Under high sun, 2 faint clouds in E. part of crater."
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.
Madler 1940 Aug 17 UT 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=5.8 on this date but
8.9 on Aug. 17, when observing conditions were similar (see #
473). NASA catalog weight=4. NASA catalog ID #470.
ALPO/BAA weight=3.
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.
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.
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.
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.
Plato 1937 Jul 22 UT 06:20 Observed by Haas (Alliance, Ohio,
USA, 12" reflector?) "Floor distinctly greenish, but was gray on
June 23, 1937 at 0430 & col.84 (normal?)" NASA catalog weight=4
(high). NASA catalog ID #421. ALPO/BAA weight=3.
Aristarchus 1989 Oct 13 UTC 21:00 Observed by Cook (Frimley, Surrey,
UK, 20cm reflector (visual and video)) "Aristarchus had what appeared
to be a outline of a ghost crater on it's eastern side - quite large
and bright". Cameron 2006 extended catalog TLP ID No=378 and weight=5.
ALPO/BAA weight=4.
On 1982 Jun 05 at 22:00? UT, Chapman (UK, using a 12" reflector), again
using a x2 yellow filter, noticed that the central craterlet
detectabilty changed such that sometimes it was visible and sometimes
not. Foley (Kent, UK)noticed that the central craterlet could only just
be seen between June 2 to June 5 and was much less discernable than
during the previous lunation. No CED brightness measurements made. The
floor of Plato was noted to be very dark though. Cameron 2006 catalog
ID=172 and weight=4. ALPO/BAA weight=2.
Aristarchus. 2024 Feb 23 UT 19:22. A.Conway (Bootle, UK - 20cm
Newtonian (dobsonian), 9mm Plossl eyepiece, Samsung A33 mobile
phone camera, 36 sec AVI file at 30fps, seeing probably
average-good). Noticed a blue tinge on northern rim of the
crater. This is probably normal, but we are flagging this up
as a weight 1 TLP, in order to obtain some repeat illumination
observations and confirm that the strength of the blueness is
normal.
Aristarchus 1965 May 15 UTC 01:40-02:15 Observed by Weresuik, McClench,
Johnson (Pt. Tobacco, MD, USA, 16" reflector x240, S=F, T=G) and Delano
(Massachusetts, USA, 12" reflector). "Crater had color(red?) detected
by Trident MB & photos were obtained. There were pulsations. Delano saw
E. wall of crater unusually bright (confirm. if at same time)." NASA
catalog weight=5 (very good). NASA catalog ID #876.
Eratosthenes 1976 Sep 08 UTC 04:29 Observed by Bartlett (Baltimore, MD,
USA, 4.5" reflector 45-225x, S=5-4, T=5) "Psuedo-shadow X3 was present
but X disappeared from wall(same intensity?) which was rated 4 deg.
Disappearance of X so unexpected that he examined inner S wall very
carefully & was certain it was free from psuedo-shad. Had vanished
within 24h. Other pseudo-shadows showed no change. X reappeared next
nite. (X must have been 4deg; &this is much higher than any other
meas.). Variability of wall shadows may habe been what Pickering saw,
suggests Bartlett." Cameron 1978 TLP catalog weight=4 and catalog ID
1452. ALPO/BAA weight=2.
Madler 1940 Sep 16 UT 02:10 Observed by Haas (New Mexico? USA,
12" reflector?) "Bright spot on S. rim was I=5.8 comp. with 8.9
on Aug 17 (see #470)." NASA catalog weight=4. NASA catalog ID #
473. ALPO/BAA weight=2.
Aristarchus 1973 Feb 15 UTC 17:07-19:31 Observed by Theiss (located at
51N 5.67E) "area 4-5 diameters of Aristarchus were coloured clearly
yellow-red" 120mm reflector used. Ref Hilbrecht & Kuveler (1984) Moon
and Planets Vol 30 p53-61. ALPO/BAA weight=1.
Plato 1973 Aug 13 UT 22:25-22:35 observed by Pedler (Devon, UK).
Observer noticed a slight blink on a lighter patch on the floor
just beneath the south(?) rim using Moon blink filters.
ALPO/BAA weight=1.
Kepler 1962 Jul 17 UTC 06:24,08:36 Observed by Wildey, Pohn (Mt Wilson,
CA, USA, 60" reflector+photometer) "Crater was at Vmag 2.68 at earlier
obs. which was .47 mag brighter than av. mag. at 15d & it faded to near
normal at later time to V=3.10(photom. measures), a change of 1/2 mag.
or @1.5 times in brightness" NASA catalog weight=5 (very good). NASA
catalog ID #761.
David Darling observed bright glittering on Aristarchus. This
was followed by a flare up in brightness at 00:38:05 UT in the
comet-like ray area of the crater equivalent in intensity to the
central peak. Then he saw another one on the north east rim of
Aristarchus of the same brightness. A third flare was seen at
00:49UT in south of Herodotus, on the comet-like ray. Another
two flares were observed at 00:56UT on the north west rim of
Aristarchus. Darling suspects that these effects were due
to seeing effects and Cameron agrees. However Weier suspects
that they were TLP? Brightness measurements by Weier were for
the south west rim of Herodotus 8.0, for a spot at the Cobra's
Head 9.0 and 7.5 for C.H. Cameron apparently did not see the flashes
but did suspect that the interior of Aristarchus was a bit unusual.
Don Spain did not see anything unsual at all. Cameron 2006 extended
catalog ID=380 and the observation weight=3. The ALPO/BAA weight=2.
Kepler 1962 Jul 17 UTC 06:24,08:36 Observed by Wildey, Pohn (Mt Wilson,
CA, USA, 60" reflector+photometer) "Crater was at Vmag 2.68 at earlier
obs. which was .47 mag brighter than av. mag. at 15d & it faded to near
normal at later time to V=3.10(photom. measures), a change of 1/2 mag.
or @1.5 times in brightness" NASA catalog weight=5 (very good). NASA
catalog ID #761.
On 1978 Aug 18 at UT 22:00 Coates (England?, UK, 3" refractor,
seeing=II) found that the inner bands of Aristarchus were hard to see,
this was odd because the seeing conditions were good and he usually
sees them? However he did not believe that there was any obscuration
going on. The Cameron 2006 catalog ID=37 and weight=0. The ALPO/BAA
weight=1.
Aristarchus 1967 Dec 16 UTC 22:00? Observed by Farrant (Cambridge,
England, 8" reflector) "Crater took on an unusual appearance on inner
NE (ast. ?) wall. Showed a very pale blue & the opposite wall a pale
red color seen in no other features. Lasted only 10m & survived a
change of eyepieces." Seeing=I (Antoniadi). NASA catalof weight=3
(average). NASA catalog ID #1056.
On 1893 Apr 01 at UT 22:00 deMoraes of the Azores, Portugal, saw a
shaft of light projecting from the Moon. Cameron 1978 catalog ID=280
and weight=0. ALPO/BAA weight=1.
Aristarchus 1973 Oct 12 UTC 18:13-18:45 observed by Pasternak "Bright
region of the S. of the crater, color was red." - Hilbrecht and
Kuveler, Earth, Moon & Planets, 30 (1984), p53-61. ALPO/BAA weight=1.
CCD images taken through Wratten 25 (red+near IR) and 87
(near IR only) filters. Between 00:02 and 00:25UT there
was some slight evidence that a fade may have taken place
however careful analysis by Cook casts doubt on this.
Probably it was more related to a degradation in image
quality due to seeing than a true TLP. An ALPO/BAA
weight of 1 has been assigned.
Aristarchus 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson,
CA ?, 60" reflector? Photometer) "Reddish color in Aris. 0.88
magnitudes brighter than normal (photometry)." NASA catalog weight=5
(very good). NASA catalog ID #758. ALPO/BAA weight=3.
Bullialdus 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson,
CA ?, 60" reflector? Photometer) "1.05 magnitudes brighter than normal
(photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758.
ALPO/BAA weight=2.
Kepler 1962 May 20 UTC 08:00? Observed by Wildey, Pohn (Mt Wilson, CA
?, 60" reflector? Photometer) "1.03 magnitudes brighter than normal
(photometry)." NASA catalog weight=5 (very good). NASA catalog ID #758.
Enhancement of spectrum in UV and CaI recorded on photoelectric
spectrometer scans by Grainger and Ring in Italy. Effect seen on
Aristarchus. Cameron 1978 catalog ID=740 and weight=5. ALPO/BAA
weight=5.
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.
Proclus 1955 Nov 01 UTC 02:50-03:05 Observed by Bartlett (Baltimore,
MD, USA, 3.5" reflector x100, S=6, T=5) "Proc. D normally 5 deg bright
was vis. tonite only in blue light, whereas usually is vis. in
integrated light. However at col. 110.5 deg it was a dark spot (see #
816) C.p. tonite was normal 5 deg bright but in Oct. lun. was dark".
NASA catalog weight=4 (good). NASA catalog ID #625. Note Proclus D does
not refer to the crater Proclus D as defined by the IAU, but probably
to a spot inside the crater that Bartlett designated D!
Littrow 1915 Jan 31 UTC 22:00? Observer: unknown (England?) "6 to 7
spots arranged like a gamma first seen on this nite. (Kuiper atlas.
Rect. 14-c shows spots in form of a 7 or a cap. gamma backwards, but
not l.c. gamma)". NASA catalog weight=0 (almost certainly not a TLP).
NASA catalog ID #349. ALPO/BAA weight=1.
On 1992 Jul 16 at UT 03:32-09:31 D. Louderback (South Bend, WA, USA,
3" refractor, x134) detected yellow on the southern rim of Aristarchus,
and the colour looked "darker" through a yellow filter and the region
was "duller" than normal. The region was 1 intesnsity step brighter on
the 2nd measurement, "on all points in it". The comet tail-like ray had
3 sections and was "mottled" in appearance. Finally the Cobra Head
region had possible variations in brightness. The cameron 2006 catalog
ID=451 and the weight=3. The ALPO/BAA weight=2.
Gassendi 1940 Sep 18 UTC 03:15 Observed by Haas (New Mexico? 12"
? reflector) "Largest bright spot in SE part of floor had I=6.1,
but I=6.7 & 8.6 on other nites. (same ph. see #469, 472 & 475)"
NASA catalog weight=4. NASA catalog ID #474. ALPO/BAA weight=2.
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.
Plato 1938 Jun 15 UTC 08:00 Observed by Haas? (New Mexico?, 12?"
reflector) "NW. end of floor had intensity I=2.0, but on 7/15/38, I=
3.7, conditions similar." NASA catalog weight=4 (high). NASA catalog ID
#439.
Plato 1971 Dec 04 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.
On 1965 May 18 at UT 03:00-03:30 Cragg (Mt Wilson?, CA, USA, 6"
refractor?) observed a TLP (no feature nor description given in
the Cameron 1978 catalog) on the Moon. The Cameron 1978 catalog ID=877
and weight=4. The ALPO/BAA weight=1.
On 1990 Jan 13 at UT 22:15-23:05 J. Pedler (Bristol, UK, seeing=III and
transparency=excellent, no spurious colour) detected a blue region on
the north of Aristarchus, varying in sharpness/diffuseness. The crater
rim in this region could not be descerned. Eleswhere the crater rim was
normal as too were other features. When a Moon blink device was used,
no colour blink was detected, however through the blue filter the
suspected area was bright and the crater rim indistinct. Whereas
through the red filter the area looked perfectly normal. At 22:30UT the
effect had vanished and everywhere was normal. The Cameron 2006 catalog
ID=388 and the weight=5. The 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.
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.
On 1979 Aug 12 at UT07:00-10:35 D. Darling and wife (Sun Prarie, WI,
USA, 12.5" reflector, x342, photos, S=9/10) observed a cigar shaped
protruberance in Romer crater that cast a 32km long shadow, nestled in
a valley rille next to Romer. This was a confirmed observation. The
effect persisted intil sunset. The top of the object and two points on
the crater rim were reflecting the Sun's rays. "Top of obj. & 2 pts on
crater rim reflected suns rays. It was as high as the crater rim
whereas the rill wall was not. Took photos. he has studied this area
and never saw such a phenom before. Photos did not show it". The
Cameron 1978 catalog ID=65 and weight=5. The ALPO/BAA weight=2.
Aristillus 1939 Sep 03 UT 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. NASA catalog ID #459. ALPO/BAA weight=3.
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. NASA catalog ID #450.
ALPO/BAA weight=3.
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.
Observed by Dachille & daughter (Univ. Park, Pennsylvania, 10.5"
reflector, x75) "Flash -- then a brownish - red color patch. Alt. @
20deg. (MBMW has Oct. 12, but is 13th UT)". NASA catalog weight=5
(very good). NASA catalog ID #674.