Astronomy

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Author:
Olivia14
ID:
4993
Filename:
Astronomy
Updated:
2010-01-24 16:23:38
Tags:
science
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Description:
science
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  1. Give the definition of core
    Most dense, extreme heat
  2. Photosphere
    surface of sun
  3. chromosphere
    the inner atmosphere
  4. corona
    outer atmosphere
  5. solar prominences
    huge sheets of glowing gases which spew out from the chromosphere
  6. solar flares
    like prominences but occur much quicker
  7. sunspots
    cooler darker regions on the suns photosphere
  8. what is a celestial body
    natural objects orbiting a planet
  9. What is luminosity
    a measure of the amount of energy a start radiates
  10. what is an asteroid
    minor planets
  11. comets
    mainly dust and ice,
  12. what is the difference from a meteor and meteorite?
    • Meteor- rock and dust entering earths atmosphere
    • Meteorite- meteor that has hit the earths surface

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