The Planet Uranus Information

Some Uranian Facts
courtesy of NASA

Discovered ByWilliam Herschel
Date of Discovery1781
Average Distance from the Sun2,870,972,200 km (metric)
1,783,939,400 miles (english)
Perihelion (closest)2,735,560,000 km (metric)
1,699,800,000 miles (english)
Aphelion (farthest)3,006,390,000 km (metric)
1,868,080,000 miles (english)
Equatorial Radius25,559 km (metric)
15,882 miles (english)
Equatorial Circumference160,592 km (metric)
99,787 miles (english)
Volume69,142,000,000,000 km3 (metric)
Mass86,849,000,000,000,000,000,000,000 kg (metric)
Density1.30 g/cm3 (metric)
Surface Area8,115,600,000 km2 (metric)
3,133,400,000 miles2 (english)
Equatorial Surface Gravity8.43 m/s2 (metric)
27.7 ft/s2 (english)
Escape Velocity76,640 km/h (metric)
47,620 mph (english)
Sidereal Rotation Period (Length of Day)-0.7196 Earth days (retrograde) (-17.24 hours (retrograde))
Sidereal Orbit Period (Length of Year)84.02 Earth years (30,687.2 Earth days)
Mean Orbit Velocity24,607 km/h (metric)
15,290 mph (english)
Orbital Eccentricity0.047168
Orbital Inclination to Ecliptic0.770°
Equatorial Inclination to Orbit97.86°
Orbital Circumference17,620,000,000 km (metric)
Effective Temperature-216° C (metric)
-357° F (english)
Atmospheric ConstituentsHydrogen, Helium, Methane
Uranus' MoonsCordelia
Ophelia
Bianca
Cressida
Desdemona
Juliet
Portia
Rosalind
Mab
Belinda
Perdita
Puck
Cupid
Miranda
Francisco
Ariel
Umbriel
Titania
Oberon
Caliban
Ste
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