inner moon · moon of Uranus
Puck
The largest of Uranus's small inner moons, a dark, cratered body discovered by Voyager 2 shortly before its flyby.
- Distance from Earth today
- 2.77 billion km18.53 AU · light: 2 h 34 min
- Distance from the Sun today
- 2.91 billion km19.43 AU
- As of
- 2 November 2026position from NASA/JPL orbital elements
Where it is today
Top view of the plane of Earth’s orbit, compressed distance scale. Open on the big map with the time slider →
Facts
- Mean distance from the planet
- 86,004 km
- Orbital period
- 18.3 h
- Orbital eccentricity
- 0.0000
- Orbital inclination
- 0.3°
Source of the figures: JPL SSD – Planetary Satellites (public domain).
Discovery: 1985 – Voyager science team
Description
Puck is the largest of the small inner moons of Uranus, orbiting between the planet's rings and Miranda. It was discovered in Voyager 2 images at the end of 1985, a few weeks before the spacecraft's closest approach, and was the only one of the newly found moons that Voyager could photograph in some detail. It is roughly round, very dark and covered in craters. Puck is named after the mischievous sprite in Shakespeare's A Midsummer Night's Dream.