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Elara


Elara is the twelfth of Jupiter's known satellites. Unlike the inner satellites, the orbits of Leda, Himalia, Lysithea and Elara are significantly inclined to Jupiter's equator (about 28 degrees). They may be remnants of a single asteroid that was captured by Jupiter and broken up.


Orbital Distance:   11,737,000 km (average)
Eccentricity:       0.207
Local Year:         276.0 days (276d 0h 0m 0s)
Orbital Velocity:   3.093 km/s
Inclination:        24.8°
Local Day:          259.7 days (259d 16h 48m 0s)
Axial Tilt:         0°

Diameter:           80 km
Composition:        Carbonaceous rock
Density:            3.38 g/cm3
Mass:               7.77 x 1014 tonnes (130/billion earths)
Gravity:            0.004 G
Escape Velocity:    0.052 km/s
Area:               18,000 km2
Surface Material:   Carbonaceous rock
Atmosphere:         None
Pressure:           None
Albedo:             ?
Temperature:        ???°C

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