McKellar (crater)

McKellar (crater)

Coordinates	15°42′S 170°48′W / 15.7°S 170.8°W / -15.7; -170.8Coordinates: 15°42′S 170°48′W / 15.7°S 170.8°W / -15.7; -170.8
Diameter	51 km
Depth	Unknown
Colongitude	171° at sunrise
Eponym	Andrew McKellar

McKellar is a lunar impact crater on the Moon's far side, and it cannot be viewed directly from the Earth. It lies to the southwest of the crater Crookes, and the ray system from this impact covers the floor and sides of McKellar. To the south is the slightly smaller Bok.

This crater is somewhat eroded, with a small crater along the northwestern rim. The interior floor is relatively level except for a cluster of three ridges arrayed to the north and west of the mid-point. Just to the south of this crater is a patch of high albedo on the surface, which is usually interpreted as an indication of a relatively fresh impact.

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 McKellar.

McKellar	Latitude	Longitude	Diameter
B	13.1° S	169.1° W	16 km
S	16.0° S	173.3° W	23 km
T	15.1° S	173.0° W	45 km
U	13.9° S	174.5° W	37 km

References

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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.