Ananke (moon)
Ananke (pronounced "a NANG kee") is one of Jupiter's moons.
It was discovered by Seth Barnes Nicholson at Lick Observatory in 1951 and is named after the mother of Adrastea, by Jupiter. Ananke has a retrograde orbit.
Discovery
Discovered by Seth Barnes Nicholson
Discovered in 1951
Orbital characteristics
Mean radius 21,048,000 km
Eccentricity 0.083-0.452
Orbital period ~629d
Inclination 122.2-172.9°
Is a satellite of Jupiter
Physical characteristics
Equatorial diameter ~30 km
Surface area km2
Mass 3.82×1016 kg
Mean density 2.7 g/cm3
Surface gravity 0.010 m/s2
Rotation period ?
Axial tilt ?°
Albedo 0.04
Surface temp.
min mean max K K K
Atmospheric pressure 0 kPa