Uranus

Facts

• Uranus is the 7th planet from the Sun
• It's not visible to the naked eye
• Mass: 86,300,000,000,000 billion kg
• Surface temperature: -197 degrees Celsius
• Its  Discovered on March 13th 1781

Known rings: 13. Uranus turns on its axis once every 17 hours, 14 minutes.

More Interesting Facts

• 27 known moons
• Rotates in retrograde
• Makes one trip around the sun every 84 years 
• The coldest planet 
• Has two sets of rings 

Uranus has only been visited once. Uranus is the second least dense planet. Uranus was the first planet discovered.

Uranus Facts

• Only one spacecraft has flown by Uranus
• Uranus hides its interior
• its atmosphere is mostly hydrogen
• It  has  1782 million miles
• Its atmosphere contains helium 

Uranus is the smallest of the four giants. But is still several times. It was discovered by William Herschel.