Cooper (crater)

Cooper (crater)

Coordinates	52°54′N 175°36′E / 52.9°N 175.6°E / 52.9; 175.6Coordinates: 52°54′N 175°36′E / 52.9°N 175.6°E / 52.9; 175.6
Diameter	36 km
Depth	Unknown
Colongitude	174° at sunrise
Eponym	John Cobb Cooper

Cooper is a lunar crater that is located in the northern hemisphere on the far side of the Moon. It lies to the east of the large walled plain D'Alembert, and west-southwest of the crater Chappell.

This crater formation has been heavily worn and eroded by impact erosion. Little remains of the original rim, although its form can still be traced across the surface. Multiple small craters lie across the rim and inner wall, leaving a ring-shaped formation of ridges in the lunar terrain. The interior floor is slightly less rough than the surrounding surface, with a cluster of small craterlets near the northeast inner wall.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Cooper.

Cooper	Latitude	Longitude	Diameter
G	52.6° N	178.5° E	20 km
K	51.1° N	178.1° E	30 km

References

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• Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2. 
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• McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. http://host.planet4589.org/astro/lunar/. Retrieved 2007-10-24. 
• Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews 12 (2): 136–186. Bibcode 1971SSRv...12..136M. doi:10.1007/BF00171763.  edit
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• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1-85233-193-3.