Moons:62
Period of Rotation: 10.67 hours
Period of Revolution: 29 1/2 years
Inner/Outer planet: Outer
Distance from Sun: 840 million miles
Atmospheric composition: hydrogen, helium, sulfur
Surface composition: ice and helium
Core composition: liquid metallic hydrogen
Diameter: 74,500 miles
Gravity: .92 x Earth's gravity
Discovered by: Galileo with use of a telescope in 1610
Tilt of Axis: 26 degrees
Planetary symbol:
Missions: Pioneer I and II, Voyager II, and Cassini
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