1 day / second

0.5 AU

Puck

Moon of Uranus

A small, roughly spherical moon discovered by Voyager 2 in 1985 that orbits relatively close to Uranus and is heavily cratered with one prominent impact crater named Bogle.

Key Facts

learn more

Wikipedia

mass

1.9100e+18 kg

radius

40.5 km

semi-major axis

86,004.444 km

eccentricity

0

inclination

82.549º

longitude of the ascending node

argument of periapsis

orbital period

18.288 hours

surface gravity

0.008 g

discovery date

December 30, 1985

discovered by

Stephen P. Synnott using Voyager 2 imagery

name origins

Named after Puck, a mischievous sprite in English folklore and Shakespeare's "A Midsummer Night's Dream"

dimensions

162 km diameter (roughly spherical)

albedo

0.104

material composition

Primarily water ice with dark material

density

1.3 g/cm³
Parent Planet
Uranus

A cold, blue-green ice giant planet tipped nearly sideways on its axis, with a set of narrow rings and a family of at least 27 moons named after literary characters.

Other Moons
Iapetus
Hyperion
Phoebe
Miranda
Ariel
Umbriel