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Comparison Chart
Comparison: Ganymede vs. Jupiter

This chart shows the differences between Ganymede and Jupiter. To change the planets/moons being compared, change one or more of the form fields at the bottom and click Refresh.

Discovered By
Galileo Galilei
Known by the Ancients
Date of Discovery
Average Orbit Distance
1,070,400 km
778,340,821 km
Perihelion/Perigee (closest)
1,069,008 km
740,679,835 km
Aphelion/Apogee (farthest)
1,071,792 km
816,001,807 km
Equatorial Radius
2,631.2 km
69,911 km
Equatorial Circumference
16,532.3 km
439,263.8 km
76,304,506,998 km3
1,431,281,810,739,360 km3
148,185,846,875,052,000,000,000 kg
1,898,130,000,000,000,000,000,000,000 kg
1.942 g/cm3
1.326 g/cm3
Surface Area
86,999,665.93 km2
61,418,738,571 km2
Equatorial Surface Gravity
1.428 m/s2
24.79 m/s2
Escape Velocity
9,869 km/h
216,720 km/h
Rotation Period (Length of Day)
7.155 sidereal days
0.41354 sidereal days
Orbit Period (Length of Year)
0.019589322 sidereal years
11.862615 sidereal years
Mean Orbit Velocity
39,165.6 km/h
47,002 km/h
Orbit Eccentricity
Orbit Inclination to Ecliptic
0.177 degree
1.304 degrees
Orbit Circumference
6,725,518.71 km
4,887,595,931 km
Atmospheric Constituents
Hydrogen, Helium


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System of measurement:

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Last Updated: 25 Mar 2015