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Proper Name	Mneme
Designation	Jupiter XL
Primary Planet	Jupiter
Orbital Period	640 days, 18 hours, 28 minutes
Distance from Jupiter	Semi-Major Axis: 21,129,786 km Periapsis: 14,433,757 km Apoapsis: 27,825,815 km
Eccentricity	0.3169
Rotation Period	Not known
Mean Diameter	2 km 1.2 miles
Notes	A 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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