Friday, March 7, 2014

Uranus

Basic Facts:
Moons:27

Period of Rotation: 17 hours and 14 minutes

Period of Revolution: 84 years

Inner/Outer planet: Outer

Terrestrial/gaseous planet: gaseous

Distance from Sun: 1.7 billion miles (2.7 billion km)

Atmospheric composition: 83% hydrogen, 15% helium, 2% methane

Core composition: methane ice?

Mass: 14.5 x Earth's mass

Diameter: 32,000 miles (51,488 km)

Temperature at cloud tops: -328 degrees F

Gravity: .89 x Earth's gravity

Discovered by: William Herschel in 1781

Tilt of axis: 98 degrees

Planetary symbol:

   


Missions: Voyager II

Uranus is 1 of 2 planets ( Venus is the other planet) that rotates in retrograde motion around it's axis.  Uranus has a set of 13, very faint rings.

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