chapter 10 review

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Across
  1. 2. way the spiral galaxy containing our solar system. With the naked eye it is observed as a faint luminous band stretching across the heavens, composed of approximately a trillion stars, most of which are too distant to be seen individually
  2. 5. the top of the wave
  3. 6. a self-luminous heavenly body; star.
  4. 7. spectrum The Em spectrum is the complete spectrum of light including radieo waves,visable light, x rays
  5. 11. brightness how bright the light is
  6. 13. parllax a way to messure stars by using the near stars
Down
  1. 1. year how fast light can travel in one year
  2. 3. the length of a wave
  3. 4. the rate of both top and botem of the wave momvent
  4. 8. the total britness
  5. 9. the bottem of the wave
  6. 10. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night
  7. 12. speed how fast the wave is moving