Jupiter IX
Sinope [sah-NOH-pee] is the outermost known satellite of Jupiter. Very little is known about Sinope.
Discovered by .................................. S. Nicholson Date of discovery ...................................... 1914 Mass (kg) .......................................... 7.77e+16 Mass (Earth = 1) ................................. 1.3002e-08 Equatorial radius (km) ................................... 18 Equatorial radius (Earth = 1) .................... 2.8222e-03 Mean density (gm/cm^3) .................................. 3.1 Mean distance from Jupiter (km) .................. 23,700,000 Rotational period (days) .................................. ? Orbital period (days) .................................. -758 Mean orbital velocity (km/sec) ........................ -2.27 Orbital eccentricity .................................. 0.275 Orbital inclination ..................................... 153° Escape velocity (km/sec) ............................. 0.0240 Visual geometric albedo ................................... ? Magnitude (Vo) ......................................... 18.3