Astronomy:Baltisk
 Baltisk Crater Floor, as seen by HiRISE. Scale bar is 1000 meters long. Dark dunes are visible at the bottom of image on the left. | |
| Planet | Mars |
|---|---|
| Coordinates | [ ⚑ ] : 42°42′S 54°42′W / 42.7°S 54.7°W |
| Diameter | 52 km |
Baltisk is a crater in the Argyre quadrangle of Mars. It is located at 42.7° South and 54.7° West, is 52 km in diameter, and was named after a town in Russia.[1] Baltisk is located on the western edge of the Argyre impact basin.[2]
Topo map showing the location of Baltisk Crater and other nearby features
Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak.[3] The peak is caused by a rebound of the crater floor following the impact.[4]
Baltisk Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Dark areas are dunes. Fans are visible in the lower right.
Dunes in Baltisk Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of a previous image.
Fans in Baltisk Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of a previous image. Arrows point to layered parts of the fans.
See also
References
- ↑ "Baltisk". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
- ↑ Moore, P. et al. 1990. The Atlas of the Solar System. Crescent Books. NY
- ↑ http://www.lpi.usra.edu/publications/slidesets/stones/
- ↑ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. https://books.google.com/books?id=NoDvAAAAMAAJ. Retrieved 7 March 2011.
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