Uranus is a planet.
Uranus is the seventh planet of the Solar System ; it has 27 known moons , all of which are named after characters from the works of William Shakespeare and Alexander Pope . Uranus . It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System . Uranus is the only planet whose name is derived from a figure from Greek mythology , from the Latinised version of the Greek god of the sky Ouranos . Like the other giant planets , Uranus has a ring system , a magnetosphere , and numerous moons .