Birt (crater)
From Wikipedia, the free encyclopedia
| Crater characteristics | |
 Birt crater and environs. |
|
| Coordinates | 22.4° S, 8.5° E |
|---|---|
| Diameter | 17 km |
| Depth | 3.5 km |
| Colongitude | 9° at sunrise |
| Eponym | William R. Birt |
Birt is a lunar impact crater that is located in the eastern half of the Mare Nubium. To the east of the crater is the Rupes Recta, a long, linear feature commonly called the "Straight Wall". In actually this is only a slight rise in the surface of the mare with a maximum height of about 240 meters. It has a width of about 2.5 kilometers and is 100 kilometers in length.
The Birt crater is a bowl-shaped formation with a raised rim. It is slightly intersected along the southeast rim by the much smaller crater 'Birt A'. To the west of Birt, a rille named Rima Birt runs north-northwest in an arc from 'Birt F' to 'Birt E'.
[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 Birt crater.
| Birt | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 22.5° S | 8.2° W | 7 km |
| B | 22.2° S | 10.2° W | 5 km |
| C | 23.7° S | 8.3° W | 2 km |
| D | 21.0° S | 9.8° W | 3 km |
| E | 20.7° S | 9.6° W | 5 km |
| F | 22.3° S | 9.1° W | 3 km |
| G | 23.1° S | 8.2° W | 2 km |
| H | 23.0° S | 9.1° W | 2 km |
| J | 23.0° S | 9.4° W | 2 km |
| K | 22.4° S | 9.7° W | 2 km |
| L | 21.6° S | 9.3° 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.
