Moon
The outermost major moon of Uranus, heavily cratered with a reddish surface.
| Type | Moon |
|---|---|
| Orbits | Uranus |
| Distance from parent body | 583,500 km |
| Diameter | 1,523 km |
| Mass | 3.10 × 10^21 kg |
| Surface gravity | 0.35 m/s² |
| Temperature | -212°C |
| Orbital period | 13 days |
| Apparent magnitude | 14.1 |
| Redshift | 0 |
| Discovered | 1787 |
At 1,523 km across, Oberon is 44 percent of the diameter of Earth's Moon.
Its mass is less than a thousandth of the mass of Earth.
It orbits Uranus at 583,500 km, further out than the Moon orbits Earth.
A single orbit takes 13.5 days.
An average temperature of 61 K works out at -212 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 1787.
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