Unit 3 Vocab

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Across
  1. 5. explosion where outer layer of a star goes into space
  2. 7. the brightness of a star from the earth
  3. 8. collection of stars
  4. 9. measure of how bright a star would be if seen from a standard distance
  5. 11. small hot dim star
  6. 12. actual brightness of an object
Down
  1. 1. a star that collapsed under gravity
  2. 2. graph that shows the relationship between a star's surface temperature and absolute magnitude
  3. 3. the distance light travels in a year
  4. 4. frequencies and wavelengths
  5. 6. large cloud of gas and dust in interstellar space
  6. 10. space and all the matter and energy in it