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Comets and Stardust

Discover the fascinating world of comets and stardust! Learn about the structure of a comet, including its ion tail, dust tail, and coma. Explore the composition of comets and the role of the nucleus, rocks, and ice. Unravel the secrets of the Oort Cloud, the birthplace of long-period comets. Get to know famous comets like Hale-Bopp and Halley. Join the Stardust Astronomy Club and help scientists find stardust particles through the Stardust @ Home project. This tutorial and resources provide a wealth of information to satisfy your curiosity about comets and stardust!

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Comets and Stardust

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  1. Comets and Stardust Astronomy Club December 13th, 2006

  2. Structure of a Comet Ion Tail Dust Tail Coma To Sun

  3. Comet Composition • Nucleus • 10 km “Dirty Snowball” • Rocks and ice • Coma – gas around the nucleus • Cloud of evaporated ices and ions • may be 100,000 km in diameter • Tail • Always points away from Sun • Solar Wind and Radiation Pressure Comet Hale-Bopp

  4. 1997—Comet Hale-Bopp Can you spot the coma, gas tail, and curved dust tail?

  5. The Oort Cloud • Birthplace of long-period comets • there is no preferential direction from which comets come. • Consists of debris left over from the condensation of the solar nebula

  6. Bayeaux TapestryNorman Invasion of 1066 Comet Halley

  7. Comet Halley

  8. Hale-Bopp

  9. Hyakutake

  10. Hale-Bopp

  11. Comet West

  12. Comet Wild 2

  13. Stardust

  14. Stardust Spacecraft

  15. Launched on Feb. 7, 1999 by NASA

  16. Encounter January 2004 Earth Return January 2006

  17. Aerogel

  18. Sample Return Capsule & Collector Grid

  19. Stardust @ Home! • http://stardustathome.ssl.berkeley.edu/ • Help scientist to find stardust particles in the gel slides  save time • “By asking for help from talented volunteers like you … we can do this project in months instead of years. “ • This is a tutorial: http://stardustathome.ssl.berkeley.edu/ss_tutorial_start.php

  20. For more information • http://stardustathome.ssl.berkeley.edu/ • www.physics.sfasu.edu/markworth/ast105/Minor-Bodies.ppt • http://www.grc.nasa.gov/WWW/K-12/DLN/descriptions/presentations/sb_comet_wild_2_stardust.ppt • Wikipedia 

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