Comets, asteroids, and meteors oh

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Comets, asteroids, and meteors oh

  1. 1. Warm Up – Page 202 <ul><li>Copy today’s date and EQ on page 203. Then answer on the EQ on page 202. </li></ul>
  2. 2. Comets <ul><li>Definition: chunks of ice and dust that usually has a long, narrow elliptical orbit </li></ul><ul><li>Comet means long haired star </li></ul>
  3. 3. Comets probably come from two areas of the Solar System: 1. The Kuiper belt – found just outside the orbit of Neptune. (home of short period comets ) like Halley’s Comet.
  4. 4. <ul><li>The Oort Cloud found outside Pluto’s orbit. (Home of long period comets) </li></ul>1 AU= about 93 million miles
  5. 6. http://www.solarviews.com/cap/comet/kuiper3.htm
  6. 7. NASA
  7. 9. NASA
  8. 11. Comet animation
  9. 12. NASA
  10. 14. Comet <ul><li>3 parts: </li></ul><ul><ul><li>Nucleus </li></ul></ul><ul><ul><li>Coma </li></ul></ul><ul><ul><li>Tail: always points away from sun </li></ul></ul><ul><ul><li>Nucleus and coma make up the head . </li></ul></ul>
  11. 15. Comet
  12. 16. Famous Comets Hale- Bopp
  13. 17. More…
  14. 18. More… Comet Hyakutake 1996
  15. 19. More…
  16. 20. More…
  17. 21. Asteroids <ul><li>Definition: objects that are too small and numerous to be considered planets </li></ul><ul><li>Very rocky </li></ul>
  18. 22. Asteroid Belt The region between the orbits of Mars and Jupiter, where many asteroids are found.
  19. 23. Asteroids…
  20. 24. More Asteroid Belt…
  21. 25. Asteroid Belt
  22. 26. Asteroid Ida and moon NASA
  23. 27. asteroid Gaspra Movie of close-up NASA
  24. 28. Meteors <ul><li>3 types: </li></ul><ul><li>Meteor: a streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere </li></ul><ul><li>Meteoroid: a chunk of rock or dust in space </li></ul><ul><li>Meteorite: a meteoroid that has hit Earth’s surface </li></ul>
  25. 32. NASA                                                                             
  26. 33. http://www.mnh.si.edu / Meteorite crater in Canada
  27. 34. One of the best places to look for meteorites is Antarctica! NASA
  28. 35. NASA
  29. 36. NASA
  30. 37. NASA
  31. 38. Meteors…
  32. 39. More…                                                                                                                                                                    

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