http://www.lafterhall.com/dmk_sv102ed_07jan09_south-highlands_001.jpg
4
inch ED refractor and DMK21AU04 digital video.
Video
on...
Jim
This is from Jim of the Videoastro group, mind you..
Derek
I believe a deeply shadowed Cabeus is indeed visible in Jim's photo,
but Shackleton is not. The attachment highlights some of the named
features that can be identified.
At the limb, in the upper left, one can see a part of the sunlit ridge
extending from Shackleton to de Gerlache (whose Earthward outer slopes
are visible). The part of the ridge extending to the left from de
Gerlache can be thought of as the Earthward rim of the farside
formation Sverdrup, which partially abuts up against Shackleton. The
highest point of this ridge has been cited as one of the "peaks of
(almost) eternal light". Shackleton itself (whose rim is slightly
lower) is out of the frame to the left.
To the right in the attachment, above Newton and its satellite, one
can see the prominent rille that Whitaker identified as "Schmidt 334".
It is a useful landmark pointing to the dividing point between an
unnamed peak and the one Whitaker called "M1". Since M1 can be thought
of as being on, or part of, the Earthward rim of Cabeus, the crater
itself lies just beyond. In this photo, the shadowed ellipse of
Cabeus' interior lies roughly between the tips of the two arrows used
to point to it (one under de Gerlache, the other above S. 334).
-- Jim