Saturn VI
| Iapetus Statistics | |
|---|---|
| Discovered by | Giovanni Domenico Cassini |
| Date of discovery | 1671 |
| Mass (kg) | 1.88e+21 |
| Mass (Earth = 1) | 3.1459e-04 |
| Equatorial radius (km) | 730 |
| Equatorial radius (Earth = 1) | 1.1446e-01 |
| Mean density (gm/cm^3) | 1.21 |
| Mean distance from Saturn (km) | 3,561,300 |
| Rotational period (days) | 79.33018 |
| Orbital period (days) | 79.33018 |
| Mean orbital velocity (km/sec) | 3.27 |
| Orbital eccentricity | 0.0283 |
| Orbital inclination (degrees) | 14.72 |
| Escape velocity (km/sec) | 0.586 |
| Visual geometric albedo | 0.2 |
| Magnitude (Vo) | 10.2-11.9 |