Thrymr (moon)

Thrymr or Saturn XXX, is a moon of Saturn. It was found by Gladman, et al. in 2000, and given the designation S/2000 S 7.

Thrymr is about 5.6 kilometres in diameter, and orbits Saturn at an average distance of 20,810,000 km in 1120.809 days, at an inclination of 175° to the ecliptic (151° to Saturn's equator), with an eccentricity of 0.453.

Thrymr may have formed from debris knocked off of Phoebe at some point in the past.

Its name comes from Norse mythology, where Thrymr is a Jotun or frost giant.

The name was said as Thrym in IAU Circular 8177. However, the IAU Working Group on Planetary System Nomenclature later decided to add the nominative case ending -r to the root Thrym.

References

IAUC 7538: S/2000 S 7, S/2000 S 8, S/2000 S 9 2000 December 7 (discovery)
MPEC 2000-Y15: S/2000 S 1, S/2000 S 2, S/2000 S 7, S/2000 S 8, S/2000 S 9 2000 December 19 (discovery and ephemeris)
IAUC 8177: Satellites of Jupiter, Saturn, Uranus 2003 August 8 (naming the moon Thrym)
IAUC 8471: Satellites of Saturn 2005 January 21 (correcting the name)

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v t e Moons of Saturn
Listed in approximately increasing distance from Saturn. Temporary names in italics.
Ring shepherds	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus Pandora
Co-orbitals	Epimetheus Janus
G Ring	Aegaeon
Mimas and Alkyonides	Mimas Methone Anthe Pallene
Inner large (with trojans)	Enceladus Tethys Telesto Calypso Dione Helene Polydeuces
Outer large	Rhea Titan Hyperion Iapetus
Inuit group	Kiviuq Ijiraq Paaliaq Siarnaq Tarqeq
Norse group	Phoebe Skathi S/2007 S 2(?) Skoll S/2004 S 13(?) Greip Hyrrokkin Jarnsaxa Mundilfari S/2006 S 1(?) S/2004 S 17(?) Bergelmir Narvi Suttungr Hati S/2004 S 12(?) Farbauti Thrymr Aegir S/2007 S 3(?) Bestla S/2004 S 7(?) S/2006 S 3 Fenrir Surtur Kari Ymir Loge Fornjot
Gallic group	Albiorix Bebhionn Erriapus Tarvos
Rings of Saturn Cassini–Huygens Themis Chiron S/2004 S 6 S/2004 S 4 S/2004 S 3 In fiction