Voyager 2 image of Uranus moon Puck.

This Voyager 2 image shows Uranus's moon Puck. At 150 km in diameter, Puck is the largest of Uranus' lesser satellites, behind the five major satellites, all of which have diameters greater than 400 km. Image Credit: NASA

Discovery

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

Overview

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.

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."

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