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N
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1631
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W
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71 km
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''Unknown''
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164
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is a prominent
Lunar Impact Crater that is located in the northern
Hemisphere on the
Far Side of the
Moon . Less than one crater to the northeast is the
Mineur Crater , and to the south-southwest lies
McMath Crater .
This crater lies at the center of a large
Ray System . A skirt of higher
Albedo material covers the surface within one crater diameter, with a slightly darker band along the outer ramparts. Beyond that radius, the rays form wide sections that grow increasingly diffuse and wispy with distance. The largest sections lie in roughly 90° arcs to the northeast and southwest, while a narrower arc projects to the south-southeast. The rays continue for hundreds of
Kilometer s across the surface.
The rim of the crater is well-defined and not significantly worn. The edge is somewhat . The interior floor is generally level with some irregularities in the northeastern part. Parts of the floor have a relatively high
Albedo .
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 Jackson crater.
