Unit 3 vocab

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Across
  1. 2. large cloud of gas and dust in space
  2. 4. distance light travels in a year
  3. 6. relationship between a star's surface temperature and absolute magnitude
  4. 7. brightness of star from standard distance
  5. 8. collection of stars, dust, and gas combined
  6. 10. brightness of a star seen from earth
Down
  1. 1. frequencies and wavelengths
  2. 3. huge explosion of a star
  3. 4. real brightness of a star
  4. 5. space and all matter and energy in it
  5. 9. hot dim star
  6. 11. a star that has collapsed under gravity