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Solar System Exploration
Puck: Overview
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Grainy black and white image of Puck.
A Voyager 2 image of Puck taken in 1986.

Puck is one of the small inner moons of Uranus. With a diameter of about 150 km (about 90 miles), Puck is the largest of Uranus' known lesser satellites. Puck orbits Uranus in less than one Earth day.

Puck was discovered December 1985 in images sent back by the Voyager 2 spacecraft during its flyby of Uranus.

How Puck Got its Name:
Originally designated S/1985 U1, Puck is named for a mischievous sprite in William 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
Orbit Size (semi-major axis):  86,000 km
Mean Radius:  81.0 km
Volume:  2,226,095 km3
Mass:  2,893,928,744,310,680,000 kg
22 Jan 2003: 
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Last Updated: 12 Aug 2013