Urey (crater)

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Urey
Urey crater 4165 h3.jpg
Oblique Lunar Orbiter 4 image
Coordinates 27°54′N87°24′E / 27.9°N 87.4°E / 27.9; 87.4 Coordinates: 27°54′N87°24′E / 27.9°N 87.4°E / 27.9; 87.4
Diameter 38 km
Depth Unknown
Colongitude 273° at sunrise
Eponym Harold C. Urey
Oblique view from Apollo 16 Urey crater AS16-P-5520.jpg
Oblique view from Apollo 16
Urey, Rayleigh, and surroundings. NASA photo. Craters Rayleigh Urey.jpg
Urey, Rayleigh, and surroundings. NASA  photo.

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.

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.

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