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Interplanetary Matter

Interplanetary Matter. Asteroids : rocky bodies, inner solar system Comets : effluent from icy bodies, from outer solar system. Meteors/Meteorites: rocky or icy bodies that enter Earth ’ s atmosphere; mostly very small. "..ites" survive to reach ground. Interplanetary Matter.

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Interplanetary Matter

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  1. Interplanetary Matter • Asteroids: rocky bodies, inner solar system • Comets: effluent from icy bodies, from outer solar system. • Meteors/Meteorites: rocky or icy bodies that enter Earth’s atmosphere; mostly very small. "..ites" survive to reach ground.

  2. Interplanetary Matter • Asteroids: rocky bodies, inner solar system • Comets: effluent from icy bodies, from outer solar system. Name immortality. • Meteors/Meteorites: rocky or icy bodies that enter Earth’s atmosphere; mostly very small. "..ites" survive to reach ground.

  3. Asteroid Belt (Greatest Concentration)

  4. Comparative Sizes of Largest Asteroids (Moon diameter is 2150 miles)

  5. First closeups of asteroids: the two satellites of Mars

  6. Asteroid Orbits

  7. COMETS

  8. Orbit of Halley’s Comet (Period 76 years)

  9. Visible part of comet = effluent from “dirty snowball” nucleus

  10. Comet West 1975

  11. Comet Bennett 1969

  12. Comet Ikeya-Zhang 2002

  13. Hale-Bopp 1997

  14. Meteors

  15. “Sporadic” Meteor Against Orion

  16. Fireball

  17. Meteor “Shower” From Comet Debris

  18. Leonid Shower 1833

  19. 35 Million Years Old

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