Polybius (crater)
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| Crater characteristics | |
 Location of crater Polybius. |
|
| Coordinates | 22.4° S, 25.6° E |
|---|---|
| Diameter | 41 km |
| Depth | 2.1 km |
| Colongitude | 335° at sunrise |
| Eponym | Polybius |
Polybius is a lunar impact crater in the southeast part of the Moon. It is located to the south-southeast of the larger Catharina crater, in the area framed by the Rupes Altai scarp. Some distance to the northeast is the Mare Nectaris, with the Beaumont and Fracastorius flooded craters.
The crater rim of Polybius appears slightly distended in the northeast, and has a cut through the northern wall. But the wall is otherwise moderately intact with only minor erosion. The interior floor is flat and almost featureless, with no central rise. To the south and east, a ray from the crater Tycho cuts across the bowl-shaped 'Polybius A' and 'Polybius B' craterlets.
[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 Polybius crater.
| Polybius | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 23.0° S | 28.0° E | 17 km |
| B | 25.5° S | 25.5° E | 12 km |
| C | 22.0° S | 23.6° E | 29 km |
| D | 26.9° S | 27.9° E | 9 km |
| E | 24.4° S | 26.2° E | 9 km |
| F | 22.2° S | 23.0° E | 21 km |
| G | 22.5° S | 22.7° E | 5 km |
| H | 21.1° S | 22.7° E | 8 km |
| J | 22.7° S | 23.5° E | 9 km |
| K | 24.3° S | 25.3° E | 14 km |
| L | 22.0° S | 28.2° E | 7 km |
| M | 21.3° S | 22.1° E | 6 km |
| N | 23.4° S | 26.8° E | 13 km |
| P | 21.5° S | 22.9° E | 17 km |
| Q | 25.1° S | 27.5° E | 6 km |
| R | 25.6° S | 27.3° E | 7 km |
| T | 26.1° S | 25.5° E | 12 km |
| V | 25.2° S | 29.1° E | 6 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.
