Star Characteristics/H-R Diagram Crossword

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Across
  1. 1. These extremely large stars have low temperatures but are very bright
  2. 10. One of the characteristics used to classify stars
  3. 12. One of the characteristics used to classify stars
  4. 13. Shortened version of the name of the graph showing the relationship between a star's temperature and brightness
  5. 14. A synonym for "brightness"
  6. 15. One possible unit for measuring the temperature of stars
  7. 17. The measure of a star's brightness as seen from Earth
Down
  1. 2. A star's brightness if it were at a standard distance from Earth
  2. 3. One of the characteristics used to classify stars
  3. 4. These small stars are very hot but have low brightness
  4. 5. 90% of stars are found in this group on a Hertzsprung-Russell diagram
  5. 6. What color the hottest stars are on an HR diagram
  6. 7. The distance light travels in 1 year
  7. 8. Part of the main sequence, these stars have both low temperatures and brightness
  8. 9. What astronomers use to determine the distance to nearby stars
  9. 11. The color of the sun on an HR diagram
  10. 16. What color the "coolest" stars are on an HR diagram