Jupiter III
| Ganymede Statistics | |
|---|---|
| Discovered by | Simon Marius & Galileo Galilei |
| Date of discovery | 1610 |
| Mass (kg) | 1.48e+23 |
| Mass (Earth = 1) | 2.4766e-02 |
| Equatorial radius (km) | 2,631 |
| Equatorial radius (Earth = 1) | 4.1251e-01 |
| Mean density (gm/cm^3) | 1.94 |
| Mean distance from Jupiter (km) | 1,070,000 |
| Rotational period (days) | 7.154553 |
| Orbital period (days) | 7.154553 |
| Mean orbital velocity (km/sec) | 10.88 |
| Orbital eccentricity | 0.002 |
| Orbital inclination (degrees) | 0.195 |
| Escape velocity (km/sec) | 2.74 |
| Visual geometric albedo | 0.42 |
| Magnitude (Vo) | 4.61 |