Main Page | See live article | Alphabetical index Puck Discovery Discovered by Voyager 2 Discovered in 1985 Orbital characteristics Mean radius 86004 km Eccentricity 0.00005 Orbital period 0.76183d Inclination 0.31° Is a satellite of Uranus Physical characteristics Equatorial diameter ~162 km Surface area km2 Mass 2.89×1018 kg Mean density 1.3 g/cm3 Surface gravity 0.029 m/s2 Rotation period ? Axial tilt ?° Albedo 0.07 Surface temp min mean max K K K Atmospheric pressure 0 kPa Puck is a moon of Uranus. It was discovered by Voyager 2 in 1986. Little is known about it aside from its orbit, its size, and its dark albedo (approximately 0.07). In Celtic mythology and English folklore, Puck is a mischievous tricky sprite, originally an evil demon, but better known as a character in Shakespeare's Midsummer Night's Dream who travels around the globe at night with the fairies. Most of the moons of Uranus are named after characters in Shakespeare or Alexander Pope. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.