Reference image
Oberon moon solar system object
Object guide

Oberon is a heavily cratered outer moon of Uranus with a mixed surface of old terrains and fracture systems. Oberon is approximately 1,522.8 km across.

How to observe Oberon

Oberon is resolved as a separate world mainly through imaging or spacecraft data; visually, its relationship to uranus is the key observing context.

Scientific context

Useful scale comparisons are 0.12 Earth diameters, 0.035 g surface gravity, 0.037 Earth years per orbit. These values are rounded from the catalogue measurements shown on this page.

Radius
761.4 km
Diameter
1,522.8 km
Mass
3,014,000,000,000,000,000,000 kg
Mean density
1.63 g/cm³
Surface gravity
0.347 m/s² (0.035 g)
Orbital period
13.463 days (0.037 years)
Parent body
uranus
0.12 Earth diameters0.035 g surface gravity0.037 Earth years per orbit

Source: NASA Science ↗

Parent planet in the solar system

The overview shows Uranus, the parent planet. This moon is not rendered in the heliocentric model.

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Milky Way: ESO/S. Brunier
3 Oct 2026, 14:54:54UTC · Live