Moons · Moon of Uranus

Oberon

583,520 km from Uranus · Light crosses it in 0.0051 seconds

Across

1,523 km

Vs Earth

12% of Earth

Mass

0.05% of Earth

Open Oberon in Cosmic Scale

About

Oberon is the outermost of Uranus's large moons, an old, cratered world of ice and rock. Many of its craters have dark floors, perhaps where darker material welled up from below.

Its craters have dark floors; one mountain rises about 11 km.

At a glance

Size	1,523 km
Orbits	Uranus, every 13.5 days
Discovered	1787, William Herschel
Visited	Voyager 2, 1986

Did you know

1. It has a mountain about 11 km high.
2. Its moons, like Uranus, are named after characters from Shakespeare and Pope.
3. Only about 40% of its surface has been photographed.

Real photo

• Oberon at Voyager 2's closest approach, 1986 — NASA/JPL · source