Jupiter IV
| Callisto Statistics | |
|---|---|
| Discovered by | Simon Marius & Galileo Galilei |
| Date of discovery | 1610 |
| Mass (kg) | 1.08e+23 |
| Mass (Earth = 1) | 1.8072e-02 |
| Equatorial radius (km) | 2,400 |
| Equatorial radius (Earth = 1) | 3.7629e-01 |
| Mean density (gm/cm^3) | 1.86 |
| Mean distance from Jupiter (km) | 1,883,000 |
| Rotational period (days) | 16.68902 |
| Orbital period (days) | 16.68902 |
| Mean orbital velocity (km/sec) | 8.21 |
| Orbital eccentricity | 0.007 |
| Orbital inclination (degrees) | 0.281 |
| Escape velocity (km/sec) | 2.45 |
| Visual geometric albedo | 0.20 |
| Magnitude (Vo) | 5.65 |