BAA Request: Any colour seen along the E/SE rim and along the
southern edge of the SW ray? Any colour visible on other
craters? Please use a reflector of aperture 3" or larger. If you
do see any colour, please check it out with red and blue filters
to confirm it is not due to atmopsheric spectral dispersion or
chromatic aberation. Any visual descriptions, sketches, or color
images should be emailed to:
a t c @ a b e r . a c . u k
ALPO Request: Can you see a darkening on the northen floor of
this crater? All visual reports, sketches or color images should
be emailed to:
t o n y . c o o k @ a l p o - a s t r o n o m y . o r g
BAA Request: Sketches or images needed of Toricelli B - of
sufficient resolution to reveal shadow. All observations,
including sketches or images shouild be emailed to:
a t c @ a b e r . a c. u k .
BAA Request: On 2011 Jan 21 Nigel Longshaw suspected the
eastern side of Geminus (on the border of the crater filled
shadow and the eastern illuminated rim) had a colouration to
it. This extended for a short distance from the floor shadow
into the illuminated rim width and spanned from the north to
the south of the crater. For a comparison, Cleomedes was
checked but nothing unusual was noticed in its shadow. The
observer notes that Elger also saw colour here too. Its
probable that some natural surface colouration was observed,
but this needs to be checked out? Telescopes of aperture 4"
or larger are needed to observe this effect. If you have a
refractor, then try using this, otherwise a reflector will do
just as well. Please send any sketches, images, or visual
descriptions to: a t c @ a b e r . a c. u k .
BAA Request: Cyrillus. There is a small white craterlet just
north of the three central peaks. We are interested to receive
high resolution images of this in order to find out at what
selenographic colongitude, in the lunar evening, that it loses
it's white spot appearence. Please use scopes largher than 6
inches in diameter.
Please email these to: a t c @ a b e r . a c . u k
These can only be observed using low-light level cameras running at 25 frames per sec,
or faster, and capable of recording 9th or 10th magnitude stars in real time.
Dates/UTs of observing runs, or detections of impacts, should be emailed to:
ALPO - email: c u d n i k @ s b c g l o b a l . n e t
BAA - email: a t c @ a b e r . a c . u k
UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m
These can only be observed using low-light level cameras running at 25 frames per sec,
or faster, and capable of recording 9th or 10th magnitude stars in real time.
Dates/UTs of observing runs, or detections of impacts, should be emailed to:
ALPO - email: c u d n i k @ s b c g l o b a l . n e t
BAA - email: a t c @ a b e r . a c . u k
UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m
These can only be observed using low-light level cameras running at 25 frames per sec,
or faster, and capable of recording 9th or 10th magnitude stars in real time.
Dates/UTs of observing runs, or detections of impacts, should be emailed to:
ALPO - email: c u d n i k @ s b c g l o b a l . n e t
BAA - email: a t c @ a b e r . a c . u k
UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m
These can only be observed using low-light level cameras running at 25 frames per sec,
or faster, and capable of recording 9th or 10th magnitude stars in real time.
Dates/UTs of observing runs, or detections of impacts, should be emailed to:
ALPO - email: c u d n i k @ s b c g l o b a l . n e t
BAA - email: a t c @ a b e r . a c . u k
UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m
Monte Caucasus: "shadow face" silhouette Clair-Obscur effect.
Clair-Obscur effects have no scientific importance just tricks
of the light that make us think we see something like
a letter of the alphabet or a shape or face. Clair-Obscur
effects are scientifically useless to observe. However, if
you want to be thrilled, or obtain an image to impress someone
then give them a go. This effect on the southern end of Montes
Caucuses looks like the side silhouette of a cartoon human face.
We are still slightly undertain about the precise colongitude
range, so if you do not see the face, try again later. If you
do observe, or image this, by all means send your observation
into ALPO or the BAA, but we probably won't publish, but will
nevertheless retain in our archives, just in case features
elsewhere in the image are of interest to future researchers.
Note that we have some uncertainty in the colongitude range
- so if you don't see it, please tells us the date and UT so
we can make some improvements in the predictions.
These can only be observed using low-light level cameras running at 25 frames per sec,
or faster, and capable of recording 9th or 10th magnitude stars in real time.
Dates/UTs of observing runs, or detections of impacts, should be emailed to:
ALPO - email: c u d n i k @ s b c g l o b a l . n e t
BAA - email: a t c @ a b e r . a c . u k
UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m
BAA Request: Can you see any sign of "greyness" inside the
shadow on the floor of Tycho? This is possibly due to
scattered light off of the illuminated walls of Tycho. Mimimum
sized aperture telescope to use should be an 8" reflector. Any
visual descriptions, sketches or slightly over exposed images
should be emailed to:
a t c @ a b e r . a c. u k
"Jewelled Handle": in Montes Jura - this is a Clair-Obscur effect. Its
an illuminated arc. Clair-Obscur have no scientific importance and are
just tricks of the light that make us think we see something like a
letter of the alphabet or a shape or face. Clair-Obscur effects are
scientifically pointless to observe. However, if you want to be
thrilled, or obtain an image to impress someone then give them a go.
If you do observe, or image this, by all means send your observation
into ALPO or the BAA, but we probably won't publish, but will
nevertheless retain in our archives, just in case features elsewhere
in the image are of interest to future researchers.
Cassini's Moon Maiden at Promontorium Heraclides - this is a Clair-Obscur effect.
Clair-Obscur have no scientific importance and are just tricks of the
light that make us think we see something like a letter of the alphabet
or a shape or face. Clair-Obscur effects are scientifically pointless
to observe. However, if you want to be thrilled, or obtain an image to
impress someone then give them a go. If you do observe, or image this,
by all means send your observation into ALPO or the BAA, but we
probably won't publish, but will nevertheless retain in our archives,
just in case features elsewhere in the image are of interest to
future researchers.
BAA Request: It should be possible at this colongitude to
sketch or image two light spots on the floor of Herodotus, which
may have been mistaken for peaks/small hills in the past? The
first should be on the southern floor and the second should be
to the NW of the crater centre. Any images/sketches should be
emailed to:
a t c @ a b e r . a c . u k
BAA Request: On 2010 Apr 27 Peter Grego noticed a craterlet
just to the east of Briggs (this is normal), but also an E-W
trending lineament or wrinkle ridge that does not show up on
NASA LAC charts - it is this we wish to confirm by re-
observing under similar seleonographic colongitudes. An 8" or
larger telecope is required, Please send any high resolution
images, detailed sketches, or visual descriptions to:
a t c @ a b e r . a c. u k .