Pytheas (crater)
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| Crater characteristics | |
 Pytheas (lower left) and Copernicus (top) from Apollo 17. NASA photo. |
|
| Coordinates | 20.5° N, 20.6° W |
|---|---|
| Diameter | 20 km |
| Depth | 2.5 km |
| Colongitude | 21° at sunrise |
| Eponym | Pytheas |
Pytheas is a small Lunar impact crater located on the southern part of the Mare Imbrium, to the south of Lambert crater.
It has a sharply-defined rim, a hummocky outer rampart, and an irregular interior due to slumping or fall-back. There is a small crater along the northern outer rampart, and a similar crater about 20 km to the west. The crater possesses a small ray system that extends for a radius of about 50 kilometers. It is surrounded by lunar mare that is dusted with ray material from Copernicus crater to the south.
[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 Pytheas crater.
| Pytheas | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 20.5° N | 21.7° W | 6 km |
| B | 17.5° N | 19.4° W | 4 km |
| C | 18.8° N | 19.1° W | 4 km |
| D | 21.1° N | 20.5° W | 5 km |
| E | 18.1° N | 19.0° W | 4 km |
| F | 16.5° N | 19.1° W | 5 km |
| G | 21.6° N | 17.7° W | 4 km |
| H | 20.5° N | 16.5° W | 3 km |
| J | 21.6° N | 21.1° W | 3 km |
| K | 19.9° N | 16.2° W | 2 km |
| L | 18.6° N | 16.9° W | 3 km |
| M | 19.9° N | 17.7° W | 3 km |
| N | 22.5° N | 20.5° W | 3 km |
| U | 21.7° N | 19.4° W | 3 km |
| W | 21.7° N | 23.7° W | 3 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.
[edit] External links
- LTO-40D2 Pytheas. L&PI topographic map. Retrieved on November 4, 2005.
