Elara (moon)
Elara (pronounced "EE lar uh") is a moon of Jupiter. It was discovered by Charles Dillon Perrine[?] at Lick Observatory in 1905 and is named after the mother by Zeus of the giant Tityus.
Discovery
Discovered by Charles Dillon Perrine[?]
Discovered in 1905
Orbital characteristics
Mean radius 11,716,000 km
Eccentricity 0.155-0.272
Orbital period 259.1d
Inclination 1.4-46.7°
Is a satellite of Jupiter
Physical characteristics
Equatorial diameter ~86 km
Surface area km2
Mass 8.7×1018 kg
Mean density 2.6 g/cm3
Surface gravity 0.031 m/s2
Rotation period ~0.5d
Axial tilt ?°
Albedo 0.03
Surface temp.
min mean max K K K
Atmospheric pressure 0 kPa