Mneme

Mneme, also known as Jupiter XL, is an irregular satellite of Jupiter. It was discovered by teams of astronomers led by Brett J. Gladman and Scott S. Sheppard in 2003, and was given its provisional designation S/2003 J 21.
Mneme is about ~2 kilometres in diameter, and orbits Jupiter at an average distance of 21,427,000 kilometres in 640.769 days in a retrograde direction, at an inclination of 149° to the ecliptic with an eccentricity of 0.2214. Its average orbital speed is 2.43 km/s.
Mneme belongs to the Ananke group, a retrograde irregular moon group in which orbit Jupiter in the opposite direction from its rotation.
Category:Moons
Category:Jovian Moons
Category:Irregular Satellites of Jupiter
Category:Ananke Group
Category:Outer Moon of Jupiter
Category:Objects with No Atmosphere
Category:Objects Not in Hydrostatic Equilibrium
Category:Outer Solar System Object
Category:Retrograde Satellite
Category:Numbered Objects
Category:Numbered Moons
Category:Named Moons
Category:Named Objects