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Uranus

Uranus as seen by the Voyager II spacecraft.

Uranus is the seventh planet from the sun and takes 84 years to orbit the sun once. Uranus is about 4 times larger than the Earth and is about 14.5 times as massive. Uranus was discovered on March 13, 1781 by William Herschel.

In greek mythology, Uranus was Father Sky.

Planetary Data

Distance from SunLength of DayLength of YearRadiusMass
19.191 AU17.2 hours84.01 years25,559 km8.68*1025 kg

Known Satellites

NameDistance from UranusRotational PeriodOrbital PeriodRadius
Cordelia49,770 km-unknown-0.3350338 days13 km
Ophelia53,790 km-unknown-0.376400 days15 km
Bianca59,170 km-unknown-0.43457899 days21 km
Cressida61,770 km-unknown-0.463570 days33 km
Desdemona62,660 km-unknown-0.47364960 days27 km
Juliet64,350 km-unknown-0.49306549 days42 km
Portia66,090 km-unknown-0.51319592 days54 km
Rosalind69,940 km-unknown-0.55845953 days27 km
Cupid74,800 km-unknown-.618 days12 km
Belinda75,260 km-unknown-0.62352747 days33 km
S/1986 U1076,400 km-unknown-.63 days40 km
Puck86,010 km-unknown-0.76183287 days77 km
Mab97,700 km-unknown-.932 days16 km
Miranda129,390 km1.41347925 days1.41347925 days235 km
Ariel191,020 km2.52037935 days2.52037935 days578 km
Umbriel266,300 km4.1441772 days4.1441772 days584.7 km
Titania435,910 km8.7058717 days8.7058717 days788.9 km
Oberon583,520 km13.4632389 days13.4632389 days761.4 km
S/2001 U34,280,000 km-unknown-266.6 days6 km
Caliban7,230,000 km-unknown-579.5 days48 km
Stephano8,002,000 km-unknown-676.5 days10 km
Trinculo8,571,000 km-unknown-758.1 days5 km
Sycorax12,179,000 km-unknown-1,283.4 days95 km
Margaret14,345,000 km-unknown-1,694.8 days6 km
Prospero16,418,000 km-unknown-1,992.8 days15 km
Setebos17,459,000 km-unknown-2,202.3 days15 km
S/2001 U221,000,000 km-unknown-2,823.4 days6 km

Planetary and Satellite Data: NASA's Solar System Explorer