Glossary Item - Uranus

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 Sun	Length of Day	Length of Year	Radius	Mass

19.191 AU	17.2 hours	84.01 years	25,559 km	8.68*10²⁵ kg

Known Satellites

Name	Distance from Uranus	Rotational Period	Orbital Period	Radius

Cordelia	49,770 km	-unknown-	0.3350338 days	13 km

Ophelia	53,790 km	-unknown-	0.376400 days	15 km

Bianca	59,170 km	-unknown-	0.43457899 days	21 km

Cressida	61,770 km	-unknown-	0.463570 days	33 km

Desdemona	62,660 km	-unknown-	0.47364960 days	27 km

Juliet	64,350 km	-unknown-	0.49306549 days	42 km

Portia	66,090 km	-unknown-	0.51319592 days	54 km

Rosalind	69,940 km	-unknown-	0.55845953 days	27 km

Cupid	74,800 km	-unknown-	.618 days	12 km

Belinda	75,260 km	-unknown-	0.62352747 days	33 km

S/1986 U10	76,400 km	-unknown-	.63 days	40 km

Puck	86,010 km	-unknown-	0.76183287 days	77 km

Mab	97,700 km	-unknown-	.932 days	16 km

Miranda	129,390 km	1.41347925 days	1.41347925 days	235 km

Ariel	191,020 km	2.52037935 days	2.52037935 days	578 km

Umbriel	266,300 km	4.1441772 days	4.1441772 days	584.7 km

Titania	435,910 km	8.7058717 days	8.7058717 days	788.9 km

Oberon	583,520 km	13.4632389 days	13.4632389 days	761.4 km

S/2001 U3	4,280,000 km	-unknown-	266.6 days	6 km

Caliban	7,230,000 km	-unknown-	579.5 days	48 km

Stephano	8,002,000 km	-unknown-	676.5 days	10 km

Trinculo	8,571,000 km	-unknown-	758.1 days	5 km

Sycorax	12,179,000 km	-unknown-	1,283.4 days	95 km

Margaret	14,345,000 km	-unknown-	1,694.8 days	6 km

Prospero	16,418,000 km	-unknown-	1,992.8 days	15 km

Setebos	17,459,000 km	-unknown-	2,202.3 days	15 km

S/2001 U2	21,000,000 km	-unknown-	2,823.4 days	6 km

Planetary and Satellite Data: NASA's Solar System Explorer