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Saturn: Majestic Rings and Enigmatic Moons

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Presentation Transcript

  1. Chapter 12 Saturn Spectacular Rings and Mysterious Moons

  2. Appearance of Saturn’s rings from Earth

  3. Saturn • Saturn's surface and interior are similar to that of Jupiter. • Saturn rotates rapidly with differential rotation.

  4. Saturn’s Atmosphere

  5. Saturn’s Interior

  6. Circulating Cloud system as viewed by the Hubble Space Telescope

  7. Wind Speeds on Saturn

  8. Saturn’s Rings... • ... are less than 1 mile thick. • …are composed of fragments of ice and ice-coated rock. • …are made up of thousands of ringlets. • … are kept in shape by shepherd satellites. • … were formed by perhaps a comet passing within the Roche Limit of Saturn.

  9. The Roche Limit

  10. Saturn • The large dark gap in Saturn's rings is called The Cassini division. Cassini division

  11. Saturn’s Spectacular Rings

  12. Voyager 2 flyby showing the Cassini Ring Division

  13. Shepherd Moons keep Saturn’s rings in line

  14. Saturn’s Moons • Saturn host at least 22 moons. • Only 7 are spherical.

  15. Titan is the largest of Saturn's moons and has a rather thick atmosphere.

  16. Titan a moon larger than the planet Mercury

  17. Titan has an atmosphere!! The Limb Haze shown by Voyager 1 (colorized images)

  18. Titan’s Atmosphere

  19. Saturn Data • Mass 95.16M • Size 9.45R • Density 0.125D • Surface Gravity 1.07g • Escape Speed 36km/s

  20. Saturn • Voyager 1 and Voyager 2 flybys gave us data and pictures of Saturn and its moons. • Video Clips

  21. http://www.jpl.nasa.gov/galileo/countdown/ NASA WEb SITE The End

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