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
- Andersson, L. E.; Whitaker, E. A., (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
- Blue, Jennifer (July 25, 2007). Gazetteer of Planetary Nomenclature. USGS. Retrieved on 2007-08-05.
- Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2.
- Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 0-936389-27-3.
- 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.
- Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 0-304-35469-4.
- Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 0521335000.
- Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 0-913135-17-8.
- Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes, 6th revision, Dover. ISBN 0-486-20917-2.
- Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 0-521-62248-4.
- Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1852331933.
