Astronomy:Li Fan (crater)

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Li Fan
Li Fan crater f526a31.jpg
CoordinatesCoordinates: 47°12′S 153°12′W / 47.2°S 153.2°W / -47.2; -153.2
Diameter104.8 km
DiscovererMariner 4 (1965)
Central Li Fan crater. CTX camera image (on MRO).

Li Fan is an impact crater in the Phaethontis quadrangle of Mars. It is 104.8 kilometers in diameter. It was named after 1st century Chinese astronomer Li Fan; the name was approved in 1973.[1]

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.[2] The peak is caused by a rebound of the crater floor following the impact.[3]

See also