Moon
Known for its striking two-tone coloring, one hemisphere dark and one bright.
| Type | Moon |
|---|---|
| Orbits | Saturn |
| Distance from parent body | 3,560,820 km |
| Diameter | 1,469 km |
| Mass | 1.80 × 10^21 kg |
| Surface gravity | 0.22 m/s² |
| Temperature | -163°C |
| Orbital period | 79 days |
| Apparent magnitude | 11 |
| Redshift | 0 |
| Discovered | 1671 |
At 1,469 km across, Iapetus is 42 percent of the diameter of Earth's Moon.
Its mass is less than a thousandth of the mass of Earth.
It orbits Saturn at 3,560,820 km, further out than the Moon orbits Earth.
A single orbit takes 79.3 days.
An average temperature of 110 K works out at -163 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 1671.
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