Uranus

Revolution

Rotation

Radius

84.01 Earth years

17.9 Earth hours

25,559 km

Distance From the Sun

Mass

Density

2,870,972,200 km

86.849 x 1027 grams

1.30 gm/cm3

Mean Cloud Temperature

Moons

Atmosphere

-193C

20: Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon, Caliban, Sycorax, Prospero, Setebos, Stephano

Primarily composed of hydrogen

Rings

First discovered in 1977 with 9 major rings surrounded by belts of fine dust. In all there are currently 11 confirmed rings.

Voyager 2 used Saturn's gravity to slingshot it on to Uranus, a planet that's mostly water, ammonia and methane.

This planet's pole points to the Sun, which may be the result of some vast cosmic collision in the past.

Uranus's large moon Miranda is named after one of Shakespeare's characters, but it too shows the scars of a very non-poetic past!

Uranus was discovered on March 13, 1781 by British astronomer Sir William Herschel. The planet had been observed as early as 1690, but it was believed to be another star.

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Missions:
 • Voyager 2 (1977-1986)
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 • The Nine Planets
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