AVERAGE DISTANCE FROM THE SUN
31,500 miles (50,724 km)
LENGTH OF DAY
17.9 Earth hours
LENGTH OF YEAR
84 Earth years
NUMBER OF MOONS
The blue world of Uranus is the eighth planet from the sun. With 13 rings and many moons, it looks incredible tilted on its side.
Discovered in 1781, astronomer William Herschel, named the planet Georgium Sidus after British King George III. The name was not popular outside of Britain. Later, the planet was named Uranus after the Greek god of the sky.
Uranus' 98-degree tilt on its axis causes extreme changes in sunlight during each 20-year-long season.
Similar to Venus, Uranus rotates in a direction opposite that of the rest of the planets.
Hydrogen, helium and small amounts of methane are found in Uranus' atmosphere. Methane gives the planet its blue color.
Exploring the planets, moons and other bodies orbiting our sun.