| Crater characteristics | |
|---|---|
| Coordinates | 4.9° N, 32.3° E |
| Diameter | 6 km |
| Depth | 1.1 km |
| Colongitude | 328° at sunrise |
| Eponym | Otto Wallach |
Wallach is a tiny lunar impact crater located in the eastern Mare Tranquillitatis. It is a circular, bowl-shaped feature with a negligible interior floor; the inner walls just slope down to the mid-point of the crater. Wallach is located to the northeast of Maskelyne crater, near some low ridges in the lunar mare. It was previously identified as 'Maskelyne H' before being given a name by the IAU.
References
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