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Jupiter XL

Proper NameMneme
DesignationJupiter XL
Primary PlanetJupiter
Orbital Period640 days, 18 hours, 28 minutes
Distance from JupiterSemi-Major Axis: 21,129,786 km
Periapsis: 14,433,757 km
Apoapsis: 27,825,815 km
Rotation PeriodNot known
Mean Diameter2 km
1.2 miles
NotesA minor member of the Ananke group of Jovian satellites, thought to have originated in the break-up of an asteroid captured by Jupiter's gravity. Mneme is a tiny moon of irregular shape, averaging just two kilometres in diameter.

The small moon Mneme orbits on the outer fringes of the Jovian system, and can travel as far as 28 million kilometres from the giant planet. At this distance Jupiter appears little more than a small disc, fainter than a full moon as seen from Earth. The four bright points clustered around Jupiter are its four large Galilean satellites: Io, Europa, Ganymede and Callisto.


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