| Crater characteristics | |
|---|---|
| Coordinates | 63.3° N, 177.3° W |
| Diameter | 111 km |
| Depth | Unknown |
| Colongitude | 178° at sunrise |
| Eponym | J. Robert Emden |
Emden is a lunar crater that is located in the northern hemisphere on the far side of the Moon. It is named after Jacob Robert Emden (1862-1940). The crater lies to the northwest of the larger Rowland crater, and to the east-northeast of Tikhov crater. It has been heavily damaged by subsequent impacts, leaving the rim worn and irregular and the interior partly covered by craters. The western half of the rim in particular is heavily damaged, with almost the entire edge and inner wall covered by overlapping craters. The most prominent of these is a crater along the southern wall. There is a merged crater pair on the western part of the interior floor and a joined crater pair on the northeast floor. The most intact area of floor is in the southeast, although even here the surface is pitted by multiple tiny craterlets.
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 Emden crater.
| Emden | Latitude | Longitude | Diameter |
|---|---|---|---|
| D | 64.4° N | 171.1° W | 47 km |
| F | 63.5° N | 171.1° W | 20 km |
| M | 61.3° N | 177.0° W | 25 km |
| U | 64.7° N | 177.9° E | 38 km |
| V | 65.8° N | 177.5° E | 35 km |
| W | 66.4° N | 178.3° E | 25 km |
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.
- Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 0-304-35469-4.
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- 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.
