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Basic Facts

Basic Facts
Neptune's Make-up
Neptune's Rings
The Great Dark Spot

Basic Facts


  • Discovered by Galle and d'Arrest on September 23, 1846
  • Named after Roman God "Neptune" King of the Sea
  • Because Pluto crosses its orbit path, Neptune is the farthest planet from the sun
  • Fourth Largest Planet
  • Outermost Gas Planet

    Did you know?

    In 1613 Galileo saw Neptune when it was very close to Jupiter and disregarded it as another star. He could never see Neptune when it was in full rotation because of where he lived and cloudy skies.