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Asteroid Belt Kuiper Belt Oort cloud

Asteroid Belt Kuiper Belt Oort cloud. Asteroid Belt. Discovered in 1801. Piazza found Ceres. Olbers found Pallas. Previously predicted by Franz Xaver VonZach. Asteroid Belt. The region of space between Mars and Jupiter; about 2.8AU

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Asteroid Belt Kuiper Belt Oort cloud

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  1. Asteroid BeltKuiper BeltOort cloud

  2. Asteroid Belt • Discovered in 1801. • Piazza found Ceres. Olbers found Pallas. Previously predicted by Franz Xaver VonZach.

  3. Asteroid Belt • The region of space between Mars and Jupiter; about 2.8AU • Hundreds of thousands of asteroids known. Probably millions.

  4. Asteroid Belt • 3 types of asteroid: Carbonaceous, Silicate, Metallic • Even the largest object in the belt, Ceres, is too dim to see without aid

  5. Asteroid Belt • Remnants of a planet-formation process that failed

  6. Kuiper Belt • Discovered in 1992 • Named for Dutch Astronomer Gerard Kuiper, who had PREDICTED its existence in 1951.

  7. Kuiper Belt • Region beyond Neptune; 30 to over 50AU • At least 70 000 small, icy, slow-moving, objects

  8. Kuiper Belt • Very faint objects because small, far and reflect light from Sun • A million times fainter than faintest we can see with naked-eye

  9. Kuiper Belt • History of solar system

  10. Oort Cloud • Hypothetical spherical cloud. No direct observations. • Proposed by Ernst Opik (1932), Jan Henrik Oort (1950)

  11. Oort Cloud • 50 000AU; defines gravitational boundary of solar system • Source of long-period Comets

  12. Oort Cloud • Objects composed of ices (water, methane, and ammonia) • 2 regions: outer sphere, inner disc

  13. Oort Cloud • Comets can not have formed on their current orbit • Must be held in an outer reservoir

  14. Sources • http://www.lpl.arizona.edu/faculty/malhotra_preprints/ISP_Nov04/KuiperBelt.jpg • http://www.cnes.fr/automne_modules_files/standard/public/p1135_ed77069b38b89947b9f6e5678e9af2adkuiper_pluton.jpg • http://discovermagazine.com/2004/nov/cover/outer-oort.jpg • http://www.myastrologybook.com/OortCloud10q8x7.jpg • http://en.wikipedia.org/wiki/Oort_cloud • http://en.wikipedia.org/wiki/Ceres_(dwarf_planet) • http://www.astro.ubc.ca/~lallen/kbo/general.html • http://www.enchantedlearning.com/subjects/astronomy/solarsystem/kuiper.shtml • Universe: The Definitive Visual Guide

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