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Amalthea

Jupiter V

Proper NameAmalthea
DesignationJupiter V
Primary PlanetJupiter
Family / ClassInner moons
Orbital Period11 hours, 57 minutes
Distance from JupiterSemi-Major Axis: 181,400 km
Periapsis: 180,900 km
Apoapsis: 181,900 km
Eccentricity0.003
Rotation Period11 hours, 57 minutes (synchronous orbit)
Mean Diameter167 km
104 miles

One of the innermost moons of Jupiter, Amalthea is an elongated irregular object roughly 250 km along its longest axis. It is a brilliant red-orange in colour, and this is thought to be due to sulphur compounds from the innermost of the Galilean satellites, Io.

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