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All Jovian planets have rings

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Presentation Transcript
rings
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.
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