Iapetus
Saturn 608 Iapetus
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Mean radius
- 734.3 km
- GM
- 120.5151 km³/s²
- Density
- 1.0887 g/cm³
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Orbit
- Semi-major axis
- 3,561,700 km
- Eccentricity
- 0.028
- Inclination
- 7.6°
- Orbital period
- 79.331 days
- Retrograde
- No
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗
Related
Parent body
In everyday life
- Its diameter is about 12% of Earth's (radius 734 km ÷ Earth's 6,371 km).
- One orbit takes about 79.3 Earth days.
- About 3,561,700 km from Saturn on average — 8,904 drives along the 400 km Seoul–Busan expressway.