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Uranus Facts

Seventh planet from the Sun

  • The planet is named after the ancient Greek deity of the sky Uranus.
  • It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System.
  • Though visible to the naked eye, it is not considered by ancient observers because of its dimness and slow orbit.
  • It was discovered by William Herschel on March 13, 1781.
  • It is the first planet discovered with a telescope.
  • The planet has a ring system, a magnetosphere, and numerous moons.
  • Voyager 2 images showed that it as a virtually featureless planet in visible light without the cloud bands or storms associated with the other giants.
  • It has 27 known natural satellites.
  • Names for these satellites are chosen from characters from the works of Shakespeare and Alexander Pope.
  • In astrology, the planet Uranus is the ruling planet of Aquarius.
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