5-626: This is a list of craters on Mars . There are hundreds of thousands of impact craters on Mars , but only some of them have names. This list here contains only named Martian craters starting with the letter O – Z (see also lists for A – G and H – N ) . Large Martian craters (greater than 60 kilometers in diameter) are named after famous scientists and science fiction authors; smaller ones (less than 60 km in diameter) get their names from towns on Earth . Craters cannot be named for living people, and small crater names are not intended to be commemorative – that is,
10-435: A small crater isn't actually named after a specific town on Earth, but rather its name comes at random from a pool of terrestrial place names, with some exceptions made for craters near landing sites. Latitude and longitude are given as planetographic coordinates with west longitude. List of craters on Mars This is a list of craters on Mars . Impact craters on Mars larger than 1 km (0.62 mi) exist by
15-409: A specific town. Latitude and longitude are given as planetographic coordinates with west longitude. The catalog is divided into three partial lists: Names are grouped into tables for each letter of the alphabet, containing the crater's name (linked if article exists), coordinates, diameter in kilometers, year of official name adoption (approval), the eponym ("named after") and a direct reference to
20-599: The Gazetteer of Planetary Nomenclature . As of 2017, Martian craters account for 21% of all 5,211 named craters in the Solar System . Apart from the Moon , no other body has as many named craters as Mars. Other, non-planetary bodies with numerous named craters include Callisto ( 141 ), Ganymede ( 131 ), Rhea (128), Vesta (90), Ceres (90), Dione (73), Iapetus (58), Enceladus (53), Tethys (50) and Europa ( 41 ). For
25-604: The hundreds of thousands, but only about one thousand of them have names. Names are assigned by the International Astronomical Union after petitioning by relevant scientists, and in general, only craters that have a significant research interest are given names. Martian craters are named after famous scientists and science fiction authors, or if less than 60 km (37 mi) in diameter, after towns on Earth . Craters cannot be named for living people, and names for small craters are rarely intended to commemorate
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