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The Stars of Louis

  • August 20, 2014
  • By KIDS DISCOVER

In the late 1600s, astronomer Giovanni Domenico Cassini discovered four of Saturn’s largest moons: Iapetus, Rhea, Tethys, and Dione. He named them the “Stars of Louis” after France’s King Louis XIV, who was the patron of the Paris Observatory, where Cassini was director.

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