Tacitus (crater)
 LRO WAC mosaic | |
| Coordinates | 16°12′S 19°00′E / 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 the crater Catharina, at the northern extension of the Rupes Altai ridge line. It is named after the 1st century Roman writer Cornelius Tacitus. Directly west is the crater Almanon, and to the northeast is Cyrillus. To the southeast of Tacitus is a long chain of craters named the Catena Abulfeda. This chain runs to the northwest from the eastern edge of the Rupes Altai, continuing for over 200 kilometers.
The crater terminates a ridge which forms part of the Rupes Altai. The outer wall 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.
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 Tacitus.
| 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 |
References
- Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
{{cite book}}: Invalid|ref=harv(help) - Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.
{{cite web}}: Invalid|ref=harv(help) - Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
{{cite book}}: Invalid|ref=harv(help) - Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1.
{{cite book}}: Invalid|ref=harv(help) - McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.
{{cite web}}: Invalid|ref=harv(help) - 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.
{{cite journal}}: Invalid|ref=harv(help) - Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
{{cite book}}: Invalid|ref=harv(help) - Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
{{cite book}}: Invalid|ref=harv(help) - Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
{{cite book}}: Invalid|ref=harv(help) - Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
{{cite book}}: Invalid|ref=harv(help) - Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
{{cite book}}: Invalid|ref=harv(help) - Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.
{{cite book}}: Invalid|ref=harv(help)
External links
