Autonoe or Jupiter XXVIII, is a moon of Jupiter. It was found by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and given the designation S/2001 J 1.
Autonoe is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 24,264,000 km in 772.168 days, at an inclination of 151° to the ecliptic (150° to Jupiter's equator), with an orbital eccentricity of 0.369.
It belongs to the Pasiphaë group, non-spherical retrograde moons orbiting Jupiter at distances ranging between 22,800,000 and 24,100,000 km, and with inclinations ranging between 144.5° and 158.3°.
Autonoe was named in August 2003 after the Greek mythological figure Autonoe, conquest of Zeus (Jupiter), mother of the Charites (Gracies), according to some authors.