Mark Twain (crater)

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Mark Twain
Planet Mercury
Coordinates 11°12′S 137°54′W / 11.2°S 137.9°W / -11.2; -137.9Coordinates: 11°12′S 137°54′W / 11.2°S 137.9°W / -11.2; -137.9
Diameter 149 km
Eponym Mark Twain

Mark Twain is a crater on Mercury. It has a diameter of 149 kilometers.[1] Its name was adopted by the International Astronomical Union in 1976. Mark Twain is named for the American author Mark Twain, who lived from 1835 to 1910.[2]


  1. ^ Moore, Patrick (2000). The Data Book of Astronomy. Institute of Physics Publishing. ISBN 0-7503-0620-3. 
  2. ^ "Mark Twain". Gazetteer of Planetary Nomenclature. NASA. Retrieved 4 July 2012.