Purbach (crater)
| Coordinates | 25°30′S 1°54′W / 25.5°S 1.9°WCoordinates: 25°30′S 1°54′W / 25.5°S 1.9°W |
|---|---|
| Diameter | 118 km |
| Depth | 3.0 km |
| Colongitude | 3° at sunrise |
| Eponym | Georg von Peuerbach |
Purbach is a large lunar crater located in the rugged southern highlands of the Moon. The distorted crater Regiomontanus is attached to the southern rim. To the northwest is Thebit and just to the northeast lies La Caille.
The outer wall of Purbach is heavily worn, with the most intact section being along the east and northeast sides. The shared rim between Purbach and Regiomontanus is incised and rugged. The wall is distorted along the western edge, giving the appearance of a double rim, with the second rim distended towards the west. The northern wall is almost completely destroyed, and somewhat irregular Purbach G lies across the northwest rim.
The crater floor is relatively smooth in the eastern half, with a low series of ridges and a partial ghost crater outline just to the west of the crater mid-point. If the crater possessed a central peak, it has either been removed or forms part of the ridges to the west.
For a few hours before the first quarter, the crater's rim contributes the the lunar x visual phenomenon.
[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 Purbach.
| Purbach | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 26.1° S | 1.9° W | 8 km |
| B | 26.9° S | 4.2° W | 16 km |
| C | 27.7° S | 4.6° W | 18 km |
| D | 22.8° S | 1.6° W | 12 km |
| E | 21.7° S | 0.7° W | 23 km |
| F | 24.6° S | 0.0° W | 9 km |
| G | 23.9° S | 2.8° W | 27 km |
| H | 25.5° S | 5.6° W | 29 km |
| J | 27.5° S | 3.9° W | 12 km |
| K | 25.2° S | 4.6° W | 8 km |
| L | 25.1° S | 5.0° W | 17 km |
| M | 24.8° S | 4.4° W | 17 km |
| N | 26.2° S | 5.4° W | 7 km |
| O | 24.7° S | 3.8° W | 5 km |
| P | 26.4° S | 3.7° W | 5 km |
| Q | 25.9° S | 0.0° W | 4 km |
| R | 26.5° S | 3.2° W | 4 km |
| S | 27.3° S | 2.3° W | 9 km |
| T | 24.6° S | 0.9° W | 5 km |
| U | 27.0° S | 2.0° W | 15 km |
| V | 26.7° S | 0.3° W | 6 km |
| W | 25.5° S | 2.3° W | 20 km |
| X | 25.4° S | 1.1° W | 4 km |
| Y | 25.8° S | 6.8° W | 16 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. http://planetarynames.wr.usgs.gov/. Retrieved 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. http://host.planet4589.org/astro/lunar/. 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.
- 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 0-521-33500-0.
- 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 ed.). 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 1-85233-193-3.
