Urey is a lunar impact crater located in the narrow niche of terrain between the western halves of the craters Rayleigh and Lyapunov. It lies near the east-northeastern limb of the Moon, and thus appears very foreshortened when viewed from the Earth.
 Oblique Lunar Orbiter 4 image | |
| Coordinates | 27°54′N 87°24′E / 27.9°N 87.4°E |
|---|---|
| Diameter | 38 km |
| Depth | Unknown |
| Colongitude | 273° at sunrise |
| Eponym | Harold C. Urey |
The rim of Urey has outward bulges along the western and southeastern sides. There are no notable craters along the rim or inner wall. However, there are a few small craterlets on the interior floor, including a crater at the northern end of the central ridge. This range of low hills divides the floor in half, running north–south for a distance of about one third the crater diameter.
This crater was previously designated Rayleigh A, a satellite of Rayleigh, before being given its current name by the IAU.
References
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