Perrotin (Martian crater)

Perrotin (crater)
THEMIS image of Perrotin crater
Planet Mars
Region Coprates quadrangle
Coordinates 2°49′S 77°56′W / 2.82°S 77.94°W / -2.82; -77.94Coordinates: 2°49′S 77°56′W / 2.82°S 77.94°W / -2.82; -77.94
Diameter 82.82 km
Discoverer Mariner 9
Eponym Henri A. Perrotin

Perrotin is a crater in the north of Coprates quadrangle of Mars north of Valles Marineris, the largest canyon on Mars, located at 2.82°S latitude and 77.94°W longitude. It is 82.82 km in diameter and was named after Henri A. Perrotin, a French astronomer who studied dark lineations on the planet. Its name was approved in 1988.[1]

The crater are mostly surrounded by canyons (chasmas) including the lesser canyons of Valles Marineris, Tithonium Chasma to the southwest, Candor Chasma to the southeast and Ophir Chasma further east. Other chasmata (canyons) are to the north, Hebes Chasma and Echus Chasma. South of the crater is Tithoniae Catenae. and west are a few small scarps known as Tithoniae Fossae. It is the only prominent crater in the northwest of Coprates quadrangle which covers a whole part.

The crater was first imaged by Mariner 9 in 1972.

Location

The northwest of the Coprates quadrangle, Perrotin is on the top left of the quadrangle map (its named features were as of January 2013)

See also

References

  1. ↑ "Perrotin". Gazetteer of Planetary Nomenclature (USGS). International Astronomical Union. Retrieved February 13, 2018.
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