Tacitus (crater)
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| Crater characteristics | |
| Coordinates | 16.2° S, 19.0° E |
|---|---|
| Diameter | 40 km |
| Depth | 2.8 km |
| Colongitude | 340° at sunrise |
| Eponym | Cornelius Tacitus |
Tacitus is a lunar impact crater located to the northwest of Catharina crater, at the northern extension of the Rupes Altai ridge line. Directly west is the Almanon crater, and to the northeast is Cyrillus crater. To the southeast of Tacitus is a long chain of craters named the Catena Abulfeda. This chain runs to the northwest from the east edge of the Rupes Altai, continuing for over 200 kilometers.
The crater terminates a ridge which forms part of the Rupes Altai. The outer walls has a small rampart, and the interior surfaces are terraced. The rim outline has a slight polygonal outline. There is a low ridge on the crater floor running from the north wall.
[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 Tacitus crater.
| Tacitus | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 17.4° S | 20.5° E | 11 km |
| B | 14.0° S | 20.4° E | 13 km |
| C | 13.6° S | 19.8° E | 9 km |
| D | 13.5° S | 21.0° E | 15 km |
| E | 13.9° S | 20.1° E | 9 km |
| F | 17.1° S | 17.6° E | 10 km |
| G | 17.4° S | 18.2° E | 6 km |
| H | 17.8° S | 18.5° E | 7 km |
| J | 14.9° S | 19.7° E | 3 km |
| K | 13.1° S | 20.1° E | 3 km |
| L | 14.4° S | 20.9° E | 6 km |
| M | 13.9° S | 21.5° E | 6 km |
| N | 16.9° S | 19.4° E | 7 km |
| O | 14.0° S | 21.9° E | 5 km |
| Q | 18.0° S | 20.5° E | 5 km |
| R | 16.7° S | 19.7° E | 5 km |
| S | 14.5° S | 19.1° E | 10 km |
| X | 15.8° S | 18.2° E | 4 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.
