Polybius (crater)
|
Lunar Orbiter 4 image | |
| Coordinates | 22°24′S 25°36′E / 22.4°S 25.6°ECoordinates: 22°24′S 25°36′E / 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 crater Catharina, in the area framed by the Rupes Altai scarp. Some distance to the northeast is the Mare Nectaris, with the flooded craters Beaumont and Fracastorius.
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 Tycho cuts across the bowl-shaped Polybius A and Polybius B craterlets.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Polybius.
| 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 |
References
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- Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.
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- McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. 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.
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