National Aeronautics and Space Administration Logo
Follow this link to skip to the main content NASA Banner
Solar System Exploration
Oberon: Overview
   Back to Uranus   Overview   Gallery   Facts & Figures   News 
Color image of battered moon Oberon.
Oberon is more heavily-cratered than some other Uranian moons.

Oberon is the second largest moon of Uranus. Discovered in 1787, little was known about this moon until Voyager 2 passed it during its flyby of Uranus in January 1986. Oberon is heavily cratered -- similar to Umbriel -- especially when compared to three other moons of Uranus: Ariel, Titania and Miranda. Like all of Uranus' large moons, Oberon is composed of roughly half ice and half rock. Oberon has at least one large mountain that rises about 6 km off the surface.

Oberon was discovered in January 1787 by William Herschel.

How Oberon Got its Name:
Oberon is named for the king of the fairies in Shakespeare's "A Midsummer Night's Dream."

Moons of Uranus are named for characters in William Shakespeare's plays and from Alexander Pope's "Rape of the Lock."

Just the Facts
Metric | English | Scientific Notation
Mass:  2.8834 x 1021 kg
22 Jan 2003: 
Awards and Recognition   Solar System Exploration Roadmap   Contact Us   Site Map   Print This Page
NASA Official: Kristen Erickson
Advisory: Dr. James Green, Director of Planetary Science
Outreach Manager: Alice Wessen
Curator/Editor: Phil Davis
Science Writers: Courtney O'Connor and Bill Dunford
Producer: Greg Baerg
Webmaster: David Martin
> NASA Science Mission Directorate
> Budgets, Strategic Plans and Accountability Reports
> Equal Employment Opportunity Data
   Posted Pursuant to the No Fear Act
> Information-Dissemination Policies and Inventories
> Freedom of Information Act
> Privacy Policy & Important Notices
> Inspector General Hotline
> Office of the Inspector General
> NASA Communications Policy
> NASA Advisory Council
> Open Government at NASA
Last Updated: 12 Aug 2013