Jupiter XIII
Leda [LEE-duh] is the ninth known and smallest satellite of Jupiter. Leda was the queen of Sparta and the mother of Helen and Pollux. Very little is known about Leda.
Discovered by ...................................... C. Kowal Date of discovery ...................................... 1974 Mass (kg) .......................................... 5.68e+15 Mass (Earth = 1) ................................. 9.5047e-10 Equatorial radius (km) .................................... 8 Equatorial radius (Earth = 1) .................... 1.2543e-03 Mean density (gm/cm^3) .................................. 2.7 Mean distance from Jupiter (km) .................. 11,094,000 Rotational period (days) .................................. ? Orbital period (days) ................................ 238.72 Mean orbital velocity (km/sec) ......................... 3.38 Orbital eccentricity ................................. 0.1476 Orbital inclination ................................... 26.07° Escape velocity (km/sec) ............................. 0.0097 Visual geometric albedo ................................... ? Magnitude (Vo) ......................................... 20.2
