De Forest (crater)

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Crater characteristics
Coordinates	77.3° S, 162.1° W
Diameter	57 km
Depth	Unknown
Colongitude	167° at sunrise
Eponym	Lee de Forest

De Forest is a lunar impact crater on the far side of the Moon. It is located in the far southern hemisphere, to the west of the large Zeeman walled plain and due south of Numerov crater. Due to its proximity to the southern pole, this crater receives sunlight at an oblique angle when it is on the illuminated half of the Moon.

This is a relatively young formation with features that have not been significantly worn by impacts. The rim is sharp-edged and circular, but somewhat irregular with a small outer rampart. The wide inner wall has multiple terraces, and sections near the rim give the appearance of slumping. At the mid-point of the irregular floor is a relatively large, angular central peak.

[edit] 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 De Forest crater.

De Forest	Latitude	Longitude	Diameter
N	79.5° S	164.7° W	41 km
P	80.0° S	176.0° W	18 km

[edit] References

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• Blue, Jennifer (July 25, 2007). Gazetteer of Planetary Nomenclature. USGS. Retrieved on 2007-08-05.
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• McDowell, Jonathan (July 15, 2007). Lunar Nomenclature. Jonathan's Space Report. Retrieved on 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: 136. 
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• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1852331933.