Gerin (crater)

Gerin is 445 km (313 mile) wide impact crater on Saturn's moon Iapetus, located on Saragossa Terra. It is partially obscured by the larger crater, Engelier, whose formation has destroyed about half of Gerin. Gerin is located at 45.6°S 233°W / -45.6; -233[1]

Cassini mosaic of Iapetus. Crater Gerin is located southwestern of crater Engelier (lower left).

Nomenclature

Crater Gerin is named after one of the Twelve Peers in the French epic Song of Roland;[2] this name was approved by the International Astronomical Union in 2008.

"Global View of Iapetus' Dichotomy". NASA Solar System Exploration. Retrieved 4 May 2020.
"Planetary Names: Crater, craters: Gerin on Iapetus". planetarynames.wr.usgs.gov. Retrieved 4 May 2020.

Regions	Cassini Regio
Terrae	Roncevaux Terra Saragossa Terra
Craters	Abisme Turgis Engelier Gerin
Mountains	Equatorial ridge Voyager Mountains

Discovery

Exploration

Past	Pioneer 11 Voyager 1 Voyager 2 Cassini–Huygens
Proposed	Titan Saturn System Mission

Other

Moons of Saturn
Listed in approximately increasing distance from Saturn as of epoch JD 2459200.5.
Ring shepherds	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus Pandora
Co-orbitals	Epimetheus Janus
G Ring	Aegaeon
Alkyonides	Methone Anthe Pallene
Inner large (with trojans)	Mimas Enceladus Tethys Telesto Calypso Dione Helene Polydeuces
Outer large	Rhea Titan Hyperion Iapetus
Inuit group (7)	Kiviuq Ijiraq Paaliaq S/2004 S 29 S/2004 S 31 Tarqeq Siarnaq
Norse group (46)	Phoebe Skathi S/2004 S 37 S/2007 S 2 Skoll Hyrrokkin Greip Mundilfari S/2004 S 13 (?) S/2006 S 1 S/2007 S 3 (?) Suttungr S/2004 S 20 Jarnsaxa Narvi Bergelmir Hati S/2004 S 17 (?) S/2004 S 12 (?) S/2004 S 27 Farbauti Thrymr Bestla S/2004 S 7 (?) Aegir S/2004 S 30 S/2004 S 22 S/2004 S 25 S/2004 S 32 S/2004 S 23 S/2006 S 3 S/2004 S 35 Kari S/2004 S 28 Loge S/2004 S 38 Fenrir Ymir Surtur S/2004 S 33 S/2004 S 21 S/2004 S 39 S/2004 S 36 Fornjot S/2004 S 34 S/2004 S 26
Gallic group (4)	Albiorix Bebhionn Erriapus Tarvos
Prograde outer satellites	S/2004 S 24
Rings of Saturn Cassini–Huygens Themis Chiron S/2004 S 6 S/2004 S 4 S/2004 S 3 In fiction

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