Rings
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Rings l.jpg
Rings

  • All Jovian planets have rings.

  • Rings are on the equatorial plane.

  • Rings are composed of independently orbiting particles.

  • Sizes are between small pebbles and cars.

  • They obey Kepler’s third law: Distant regions have a smaller velocity.

  • Origin: Either shattered satellite or unstable to form.

  • Mostly second explanation

  • Roche Limit: Tidal forces will tear apart a satellite if it is closer to the planet than the Roche limit.