Ananke [a-NANG-kee] is the thirteenth known satellite of Jupiter. Ananke and Zeus were the parents of Adrastea. Very little is known about Ananke.
Discovered by S. Nicholson
Date of discovery 1951
Mass (kg) 3.82e+16
Mass (Earth = 1) 6.3922e-09
Equatorial radius (km) 15
Equatorial radius (Earth = 1) 2.3518e-03
Mean density (gm/cm^3) 2.7
Mean distance from Jupiter (km) 21,200,000
Rotational period (days) ?
Orbital period (days) -631
Mean orbital velocity (km/sec) -2.44
Orbital eccentricity 0.1687
Orbital inclination (degrees) 147
Escape velocity (km/sec) 0.0184
Visual geometric albedo ?
Magnitude (Vo) 18.9
Jupiter Elara Carme
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