Sirsalis (crater)
Colongitude 61° at sunrise | | |
| Eponym | Gerolamo Sersale | |
|---|---|---|
Sirsalis is a relatively young lunar impact crater located near the western lunar limb, to the southwest of the Oceanus Procellarum. The crater lies across a ridge that runs in a north–south direction. It has a sharp edge and a low central peak. The crater overlaps the slightly larger and older Sirsalis A to the west-southwest, and the two form a distinctive feature.
To the east is a rille system named the Rimae Sirsalis. The longest of these rilles follows a line running approximately north-northeast to south-southwest, just clearing the southeastern rim of Sirsalis by about 10 kilometers. This long rille runs 330 kilometers from the shore of Oceanus Procellarum until it crosses the crater Darwin A and intersects the Rimae Darwin to the east of Darwin.
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 Sirsalis.
| Sirsalis | Latitude | Longitude | Diameter |
|---|---|---|---|
| A | 12.7° S | 61.3° W | 49 km |
| B | 11.1° S | 63.7° W | 16 km |
| C | 10.3° S | 63.8° W | 22 km |
| D | 9.9° S | 58.6° W | 35 km |
| E | 8.1° S | 56.5° W | 72 km |
| F | 13.5° S | 60.1° W | 13 km |
| G | 13.7° S | 61.7° W | 30 km |
| H | 14.0° S | 62.4° W | 26 km |
| J | 13.4° S | 59.8° W | 12 km |
| K | 10.4° S | 57.3° W | 7 km |
| T | 9.2° S | 53.4° W | 16 km |
| Z | 10.7° S | 61.9° W | 91 km |
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 2007-08-05.
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- 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.
- McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. 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. S2CID 122125855.
- ISBN 978-0-304-35469-6.
- Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
- ISBN 978-0-913135-17-4.
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- Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.