Thrymr (moon)
Thrymr, or Saturn XXX, is a natural satellite of Saturn. It was discovered by Gladman and colleagues in 2000, and given the temporary designation S/2000 S 7. Its name comes from Norse mythology, where Thrymr is a Jotun.
Thrymr is about 7 kilometres in diameter, and orbits Saturn at an average distance of 20,810 Mm in 1120.809 days. It may have formed from debris knocked off Phoebe. The Thrymian orbit is retrograde, at an inclination of 175° to the ecliptic and with an eccentricity of 0.453. Its rotation period is hours.
Its name was announced in its oblique form Thrym in . However, the IAU Working Group on Planetary System Nomenclature later decided to add the nominative suffix -r to the root Thrym.
