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N
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508
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W
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104 km
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''Unknown''
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54
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is a large
Lunar Crater that is located in the northwest part of the
Moon . Most of the southern wall of this crater is joined to the
Sinus Roris bay of the
Oceanus Procellarum , with the southeast rim facing
Mare Frigoris . Attached to the northwest of the formation is the larger
Babbage Walled-plain . Just to the northeast is the
Robinson Crater , and further to the northeast is the
J. Herschel Walled-plain .
Little remains of the original formation that created this walled plain, and the irregular rim is now just a disintegrated ring of low ridges. The most prominent section of the surviving rim lies to the northwest, while the southern half of the rim barely exists as low rises in the surface.
The interior floor of South has been resurfaced by
Basalt ic-
Lava , and is relatively level with no prominent features. The floor is pock-marked by many tiny craterlets, especially in the southern half. Several small craterlets lie along the remnant of the southern and southwestern rim.
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 South crater.
