Jupiter's Moon - Elara

E lara is the twelfth known satellite of Jupiter. Elara and Zeus were the parents of Tityus the giant. It was discovered by C. Perrine in 1905. Very little is known about Elara.

PHYSICAL DATA FOR ELARA
 Mass (kg) 7.77e + 17
 Mass (Earth = 1) 1.3002e - 07
 Radius (km) 38
 Radius (Earth = 1) 5.9580e - 03
 Mean Density (g/cm3) 3.3
 Mean Distance from Jupiter (km) 11,737,000
 Magnitude (V0) 16.77


ORBITAL DATA FOR ELARA
 Rotational period (days) 0.5
 Orbital period (days) 259.6528
 Mean orbital velocity (km/s) 3.29
 Orbital eccentricity 0.2072
 Orbital inclination (degrees) 24.77
 Escape (km/s) 0.0522
 Albedo 0.03


Physical Data Key
 
Mass Mass
Mass Mass compared to that of Earth.
Radius Radius
Radius Radius compared to that of Earth.
Mean Density Average Density.
Distance Distance to the planet's center.
Magnitude The brightness of a star or object.
 
 
Orbital Data Key
 
Rotational Period Number of days to make one complete rotation.
Orbital Period Number of days to obital the planet.
Mean Orbital Velocity Average obital speed.
Orbital Eccentricity Eccentricity.
Orbital Inclination The tilt of the moon or planet.
Escape Escape Velocity.
Albedo Visual geometric albedo.

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