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Uranus ⛢

  • Discovered in 1781 by William Herschel and his wife Caroline Herschel
    • First planet to be "discovered"
      • All the other planets were always visible
      • Originally was through to be a star when it was observed
  • Named after Father Sky
    • The only Greek mythological figure in the planets
  • 19 AU from the Sun
  • Takes 84 years to orbit the Sun
  • Spin axis is tilted by 98˚
  • Magnetic field does not line up with its rotational axis
  • Rings and moons are in line with its equator
  • Seasons are the most extreme in the Solar System
    • One hemisphere will see the Sun for 42 years
    • Due to its tilt

Moons

  • 27 known moons
  • Largest is 1/2 the size of the Moon
  • Inner moons and irregular moons
  • Members:
    • Miranda
    • Ariel
    • Umbriel
    • Titania
    • Oberson

Ring System

  • Very narrow and black
    • Almost invisible from Earth
  • 9 main rings

Space Astronomy Jovian Planet Planet