What planet does Oberon orbit?

Oberon orbits Uranus at an average distance of about 583,520 km, completing one lap every 13.5 days.

Oberon has a diameter of about 1,523 km and a mass of roughly 3.08 × 10²¹ kg.

Why is Oberon famous?

Oberon's claim to fame: the outermost major moon of Uranus, with an old, dark, heavily cratered surface.

Oberon

Moon of Uranus

Oberon facts

Orbits: Uranus
Distance from Uranus: 583,520 km (23.0 Uranus-radii)
Orbital period: 13.5 days
Diameter: 1,523 km
Mass: 3.08 × 10²¹ kg
Orbital inclination: 0.06°
Tidally locked: Yes
Discovered: 1787, by William Herschel

Oberon orbits Uranus

Watch Oberon (highlighted) circle Uranus. Press play; the moons run at their real relative speeds.

SpeedRelative sizes and spacing are compressed; orbits shown coplanar. Click a moon for its page.

About Oberon

Oberon is the outermost of Uranus's five major moons, an ancient, dark, heavily cratered world. Some of its crater floors are covered in a mysterious dark material, and a tall mountain rises from its limb in Voyager 2 images.

Named after the king of the fairies in Shakespeare's A Midsummer Night's Dream
Discovered: 1787, by William Herschel

Oberon: frequently asked questions

What is Oberon?: Oberon is the outermost of Uranus's five major moons, an ancient, dark, heavily cratered world.
What planet does Oberon orbit?: Oberon orbits Uranus at an average distance of about 583,520 km, completing one lap every 13.5 days.
How big is Oberon?: Oberon has a diameter of about 1,523 km and a mass of roughly 3.08 × 10²¹ kg.
Why is Oberon famous?: Oberon's claim to fame: the outermost major moon of Uranus, with an old, dark, heavily cratered surface.

See Oberon in motion

Back to Uranus, or open the full Solar System orrery →

Data from NASA/JPL and NSSDCA. Source.