LRO WAC mosaic
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Coordinates | 18°42′N 126°00′W / 18.7°N 126.0°WCoordinates: 18°42′N 126°00′W / 18.7°N 126.0°W |
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Diameter | 151 km (94 mi) |
Depth | Unknown |
Colongitude | 128° at sunrise |
Eponym | Aleksandr Fersman |
Fersman is a large lunar impact crater on the Moon's far side. It lies to the east of the crater Poynting, and west-northwest of Weyl. To the south is the huge walled plain Hertzsprung.
This is a worn crater with a low, outer rim. The southeast rim and the eastern interior floor are marked by ejecta deposits that trend from southeast to northwest. There is also a nearly linear series of small craters that begin to the southeast of the crater, and continue about 100 km to the northwest of the crater. There is a break in this chain across the crater's interior floor, then it continues again near the northern rim.
Several other small craters lie across the interior floor, including a grouping to the south of the midpoint. The rim has an outward bulge along the southeast side and irregular edges to the north and south. A small crater lies along the western inner wall.