BAA Request: Two observers have reported colour on the rim
around this colongitude, once in 1938, and again in 2013. Please
take a look and report what you see, and where on the rim.
Please send any high resolution images, detailed sketches, or
visual descriptions to: a t c @ a b e r . a c. u k .
BAA Request: On 2012 Jan 09 UT 21:01-21:08 Hahn crater was
imaged by Nick Hazel (Beverley, Yorkshire, UK, Nikon D7000 with
70-300 zoom at max, with 2x teleconverter, at f9, 1/320 sec, ISO
400 – tripod mounted, mirror up), A series of images were taken.
The 21:06 one showed a grey column cutting across the central
floor of the crater from the west and then bisecting the eastern
rim. All detail inside is completely invisble. Some (but not
all) of the other images showed a more blurred view of this
feature. It is possible that this was a seeing ripple effect, or
just the natural appearance of shadings on the Moon at this
time, however we would like to capture images of this area to be
sure. Small aperture telescopes or telephoto lens similar to
Nick's can be used. Try switching the tracking off to see what
effect motion blur has during the exposure - to see4 if this
replicates the effect. Please send any images you take to:
a t c @ a b e r . a c . u k
BAA Request: Do the appearance of the bands on the crater rim
vary (blur) in appearance over time? Compare them to bands in
other craters e.g. Herodotus, Kepler, Copernicus. If you do
see any variations in sharpness, see how it relates to
atmospheric seeing condtions. All images or sketches should
be emailed 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
BAA Request: Its around this Co-Longitude that some observers
have reported seeing an Ashen Light effect on the shadowed floor
of Plato, caused by scattered light off of an illuminated peak
on the rim. Please have a go either visually, or with long
exposure time lapse imagery to see if you can pick up the
development of this weak illumination effect on the floor.
Please send any sketches or images 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
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