Mark Twain (crater)

Mark Twain

MESSENGER WAC image, with Mark Twain at center
Feature type	Peak-ring impact basin
Location	Beethoven quadrangle, Mercury
Coordinates	10°55′S138°17′W / 10.91°S 138.28°W / -10.91; -138.28
Diameter	142 km (88 mi)
Eponym	Mark Twain

Mark Twain is a crater on Mercury. ^[1] Its name was adopted by the International Astronomical Union (IAU) in 1976. Mark Twain is named for the American author Mark Twain, who lived from 1835 to 1910. ^[2]

Mark Twain is one of 110 peak ring basins on Mercury. ^[3]

• 
  Mariner 10 image, with Mark Twain at right
• 
  Interior of Mark Twain crater, showing hollows along the peak ring and outer rim

References

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. IAU/NASA/USGS . Retrieved 31 August 2022.
3. Chapman, C. R., Baker, D. M. H., Barnouin, O. S., Fassett, C. I., Marchie, S., Merline, W. J., Ostrach, L. R., Prockter, L. M., and Strom, R. G., 2018. Impact Cratering of Mercury. In Mercury: The View After MESSENGER edited by Sean C. Solomon, Larry R. Nittler, and Brian J. Anderson. Cambridge Planetary Science. Chapter 9.