Moon
Saturn's second-largest moon, composed mostly of water ice.
| Type | Moon |
|---|---|
| Orbits | Saturn |
| Distance from parent body | 527,108 km |
| Diameter | 1,527 km |
| Mass | 2.30 × 10^21 kg |
| Surface gravity | 0.26 m/s² |
| Temperature | -197°C |
| Orbital period | 5 days |
| Apparent magnitude | 10 |
| Redshift | 0 |
| Discovered | 1672 |
At 1,527 km across, Rhea is 44 percent of the diameter of Earth's Moon.
Its mass is less than a thousandth of the mass of Earth.
It orbits Saturn at 527,108 km, further out than the Moon orbits Earth.
A single orbit takes 4.5 days.
An average temperature of 76 K works out at -197 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 1672.
Play today's Cosmodle