Ley is a
lunar impact crater
An impact crater is a depression (geology), depression in the surface of a solid astronomical body formed by the hypervelocity impact event, impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal c ...
that is located across the southern rim of the much larger walled plain
Campbell. Intruding into the south-southwestern rim of Ley is the slightly larger crater
Von Neumann. The debris from the formation of Von Neumann has produced a bulging rampart that occupies the southwest interior floor of Ley. The outer rim of Ley has undergone impact erosion, and is marked by a number of small craters. The inner wall is also worn, and the interior floor is pock-marked by a number of small craters. There is a small, cup-shaped crater on the floor to the northwest of the midpoint.
Prior to formal naming by the
IAU
The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...
in 1970, Ley was called ''Crater 59''.
Lunar Farside Chart (LFC-1A)
2nd Edition October 1967
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Impact craters on the Moon