Thyone (moon)
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Thyone (thye-oe'-nee, IPA: /θaɪˈoʊni/; Greek Θυώνη), or Jupiter XXIX, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, et al. in 2001, and given the temporary designation S/2001 J 2.[1][2]
Thyone is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 21,406 Mm in 639.803 days, at an inclination of 147° to the ecliptic (147° to Jupiter's equator) with an eccentricity of 0.2526.
It was named in August 2003 after Thyone, better known as Semele, one of Zeus' conquests in Greek mythology.[3]
Thyone belongs to the Ananke group, retrograde irregular moons which orbit Jupiter between 19.3 and 22.7 Gm, at inclinations of roughly 150°.
[edit] References
- ^ IAUC 7900: Satellites of Jupiter 2002 May 16 (discovery)
- ^ MPEC 2002-J54: Eleven New Satellites of Jupiter 2002 May 15 (discovery and ephemeris)
- ^ IAUC 8177: Satellites of Jupiter, Saturn, Uranus 2003 August 8 (naming the moon)
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