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A New Atlas?
Lat: 88.1°S, Long: 44.9°E, Diam: 50.9 km, Depth: km,
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Earth-based radar view by
Campbell et al.
: In the LPOD image from which this has been cropped, the Earth-based radar data was re-mapped to a north-up aerial view.
is the crater labeled
. The one labeled
, the IAU-named feature closest to the Moon's South Pole, is in the lower left, with only its lower rim illuminated by the radar waves.
LPOD Photo Gallery
Lunar Orbiter Images
is readily visible from Earth when the lighting and libration are favorable, although only the rim, and a bit of the far inner wall, are visible (most of the interior being in permanent shadow). It can be easily seen, for example, as the elliptical feature (shadowed on the left) near the left end of this
south polar mosaic
by Peter Oberč, taken when the
on the Moon was near 36.5°E/1.2°S (with a libration in latitude of -6.7°). The shadowed features to
's left in that south-up image are
(far rim, only, in sunlight), and the much larger
(both rims in sunlight).
USGS Digital Atlas PDF
The existence of this crater was probably first clearly described by
, who labeled it "R4" (for "Ring 4") in his
of the Moon's
south polar topography
A capsule carrying a small quantity of the ashes of Gene Shoemaker was carried aboard the
satellite, which was
into this crater (then unnamed) on July 31, 1999 at 9:52 UT. Scientists hoped to be be able to see from Earth a plume of debris confirming the suspected deposits of ice on the crater's shadowed floor. Nothing was visible, however they are reasonably confident the spacecraft impacted somewhere in this crater.
Eugene Merle Shoemaker
(or Gene Shoemaker) (April 28, 1928 – July 18, 1997), an American astrogeologist, who was one of the founders of the field of
. He is probably best known for co-discovering the Comet Shoemaker-Levy 9 with his wife
This name was added to the IAU nomenclature in 2000 (
IAU Transactions XXIVB
20 m Resolution!
(source of above radar image)
By Eugene M. Shoemaker:
The Moon Close Up,
November 1964 (this article describes the mission of
, with interesting photographs of the
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on Jan 8, 2011 9:51 am -
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