Sponsored by the Institute of Physics   Planets   Mercury   Venus   Earth   Mars   Jupiter     Rings     Io     Europa     Ganymede     Callisto     Metis     Adrastea     Amalthea     Thebe     S/1975 J1     Leda     Himalia     Lysithea     Elara     Ananke     Carme     Pasiphae     Sinope     S/1999 J1   Saturn   Uranus   Neptune   Pluto Asteroids Comets Constellations Sunrise and Sunset Times Moon Phases SI Units Symbols   Printer Version Astronomy Planets - Jupiter - Elara Bulk Parameters Orbital Parameters Bulk Parameters Mass Radius 40 km ± 10 km Mean Density Visual Geometric Albedo Orbital Parameters Semimajor Axis 11 737 × 103 km Period 259.652 8 days Orbital Inclination 28 ° Orbital Eccentricity 0.207   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] Download | Shop | Contact | About   Page compiled: Wed Sep 05 18:37:58 GMT+01:00 2001