Chapter 24 v words

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Across
  1. 5. the scientific study of the origin of the universe
  2. 6. a unit of astronomical distance equal to 3.26 light-years
  3. 7. a region in the Hertzsprung Russel
  4. 8. an unusual celestial object that is as bright as a galaxy but appears as a compact as a distant star
  5. 9. as immense cloud of interstellar gas and dust
  6. 10. A stars brightness as it would appear at a standard distance from that star
  7. 12. A stars brightness as viewed from earth
  8. 13. the distance that light travels in a year
  9. 14. something having to do with stars
  10. 15. the apparent change in position of distant object as one viewing position changes
Down
  1. 1. a graph used to classist stars on the basis of their color/temperature
  2. 2. an unusual star thar regular changes brightness as it expands and contracts
  3. 3. an immense star with a mass up to 70 solar masses
  4. 4. the study of the universe specifically how the universe began and how it has changed over time
  5. 11. a simplified drawing showing the appearance