Autonoe (aw-ton'-oe-ee, IPA /ɔ'tɒnoʊi/, Greek Αυτονόη) (Jupiter XXVIII) is a natural 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 1. Autonoe is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 24,264 Mm in 772.168 days, at an inclination of 151° to the ecliptic (129° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.369.
It belongs to the Pasiphaë group, irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.
Autonoe is named after the Greek mythological figure Autonoë.
... | Sponde | Autonoe | Callirrhoe | ...
Jupiter's natural satellites
Inner satellites | Galilean moons: Io, Europa, Ganymede, and Callisto | Themisto | Himalia group | Carpo | S/2003 J 12 | Ananke group | Carme group | Pasiphaë group | S/2003 J 2
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