Uranus is the seventh planet from the sun. Scientists attribute it to the planets - giants, because it is a third of the diameter and weight - the fourth. It is very far away from our planet, and probably not soon go there even misdirected satellite.The distance from Earth to Uranus is 18 times greater than the distance from the Sun to Earth - about 2,721,400,000. Km. Temperature is the lowest on the planet - up to -224 degrees below zero. It was discovered in 1781 by English astronomer William Herschel, and is named after the Greek god of the sky Uranus, the father of Cronus.