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The axis of Uranus is tilted over about 82 degrees, so the planet appears to roll along on its side as it orbits the Sun. Uranus has an extensive ring system, but they are not bright like Saturn's, but dark in colour.

This false-colour image of Uranus reveals its cloud-bands, rings and moons.

Image credit: Hubble Space Telescope, ESA/NASA.

Uranus Facts

Diameter: 51,118 kilometres (51 thousand, 118 kilometres), or 31,763 miles (31 thousand, 763 miles)

Distance from the Sun: 2,875,040,000 kilometres (2 billion, 875 million and 40 thousand kilometres), or 1,786,460,000 miles (1 billion, 786 million, 460 thousand miles)

Rotation period (day): 17.2 Earth hours

Orbital period (year): 84.3 Earth years

Cloud top temperature: -197 degrees Celsius, or -323 degrees Fahrenheit

Moons: 27 in total, namely, Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Cupid, Belinda, Perdita, Puck, Mab, Miranda, Ariel, Umbriel, Titania, Oberon, Francisco, Caliban, Stephano, Trinculo, Sycorax, Margaret, Prospero, Setebos and Ferdinand.

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