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Callisto: Facts & Figures
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Discovered By
Galileo Galilei
Date of Discovery
1610
Orbit Size Around Jupiter (semi-major axis)
Metric: 1,882,700 km
English: 1,169,856 miles
Periapsis (closest)
Metric: 1,868,768 km
Apoapsis (farthest)
Metric: 1,896,632 km
Orbit Circumference
Metric: 11,829,191.03 km
Average Orbit Velocity
Metric: 29,531.6 km/h
Orbit Eccentricity
0.0074
Orbit Inclination
0.192 degree
Mean Radius
Metric: 2,410.3 km
Equatorial Circumference
Metric: 15,144.4 km
Volume
Metric: 58,654,577,603 km3
Mass
Metric: 107,593,737,963,819,000,000,000 kg
Scientific Notation: 1.0759 x 1023 kg
Density
Metric: 1.834 g/cm3
Surface Area
Metric: 73,004,909.27 km2
Surface Gravity
Metric: 1.236 m/s2
Escape Velocity
Metric: 8,787 km/h
English: 5,460 mph
Scientific Notation: 2441 m/s
Rotation Period (Length of Day)
16.6890184 Earth days
By Comparison: Synchronous with orbital period
Atmospheric Constituents
Carbon dioxide
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Last Updated: 12 Aug 2013