Li Fan (crater)
Li Fan Crater showing central mound, as seen by CTX camera (on Mars Reconnaissance Orbiter).
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| Planet | Mars |
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| Coordinates | 47°12′S 153°12′W / 47.2°S 153.2°WCoordinates: 47°12′S 153°12′W / 47.2°S 153.2°W |
| Diameter | 104.8 km |
| Eponym | Li Fan (Han dynasty) |
Li Fan is an impact crater in the Phaethontis quadrangle of Mars, located at 47.2°S latitude and 153.2°W longitude. It is 104.8 kilometers in diameter and was named after Li Fan, and the name was approved in 1973. 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. The peak is caused by a rebound of the crater floor following the impact. The picture on this page shows the central peak of Li Fan Crater.
Nearby prominent craters include Ptolemaeus to the west and Hipparchus to the northeast. South is a valley known as Tader Valles.
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Wikipedia