Astronomy:Montevallo (crater)

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Montevallo Crater
Montevallo Crater.jpg
Montevallo Crater, as seen by THEMIS. Image shows a landslide on the north rim.
Coordinates [ ⚑ ] : 15°24′N 54°24′W / 15.4°N 54.4°W / 15.4; -54.4
Diameter51.9 km

Montevallo is a crater on Mars, located in the Lunae Palus quadrangle at 15.4° N and 54.4° W. It measures 51.9 kilometers in diameter and was named after the town Montevallo in Alabama, United States. The name was approved by IAU's Working Group for Planetary System Nomenclature in 1988.[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