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N
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1493
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W
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180 km
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''Unknown''
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152
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is a large
Lunar Crater of the class known as a walled plain. It is located on the
Far Side of the
Moon and can not be viewed directly from the
Earth . Nearby craters of note include
Joule to the northeast,
Mitra attached to the western outer rim, and
Henyey to the southwest.
This is a prominent but eroded formation with multiple craters along the rim and interior. The
Harvey Crater breaks across the eastern rim, and the outer
Rampart spills across the interior floor of Mach. The overall shape of Mach resembles a
Pear , with a prominent outward bulge to the northeast. Such a bulge can be caused by a second, merged crater. The northern edge is also the most worn and overlaid by impacts.
The interior of Mach is marked by several small craters, particularly in the northeastern bulge. Several craters also lie along the edges to the west and northwest. The remainder of the interior floor is relatively level, when compared to the
Terrain that surrounds Mach. There is a formation of central ridges near the mid-point of the crater. (Or at least the center if the northeastern bulge is disregarded.)
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Mach crater.
