page_title: Thyone (moon)
hierarchical_section_title: Thyone (moon)
caption_attribution_description: English: Animation of three discovery images of Jupiter's irregular moon Thyone (S/2001 J 2), taken by David Jewitt and Scott Sheppard using the 3.6-meter Canada-France-Hawaii Telescope (CFHT) on 11 December 2001. Each image was taken approximately 40 minutes apart, showing the moon's motion relative to the background stars and galaxies. The dark round spots are image artifacts. The apparent magnitude of Thyone is 22.5. The raw image datasets used are 615432p, 615439p, and 615446p. For comparison, the star field in these images can be viewed at the CDS's Aladin star atlas.
context_page_description: Thyone, also known as 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.
  Thyone is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 21,605,000 kilometres in 639.803 days, at an inclination of 147.28° to the ecliptic with an eccentricity of 0.2526. Its average orbital speed is 2.43 km/s.
  It was named in August 2003 after Thyone, better known as Semele, mother of Dionysus in Greek mythology.
  Thyone belongs to the Ananke group, retrograde irregular moons which orbit Jupiter between 19.3 and 22.7 million kilometres, at inclinations of roughly 150°.
context_section_description: Thyone /θaɪˈoʊniː/, also known as 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.
  Thyone is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 21,605,000 kilometres in 639.803 days, at an inclination of 147.28° to the ecliptic (146.93° to Jupiter's equator) with an eccentricity of 0.2526. Its average orbital speed is 2.43 km/s.
  It was named in August 2003 after Thyone, better known as Semele, mother of Dionysus in Greek mythology.
  Thyone belongs to the Ananke group, retrograde irregular moons which orbit Jupiter between 19.3 and 22.7 million kilometres, at inclinations of roughly 150°.
caption: Discovery images of Thyone by the Canada-France-Hawaii Telescope in December 2001