Stars Crossword Puzzle

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Across
  1. 3. The color of stars classified as "G" stars
  2. 5. This can occur when a large star runs out of fuel
  3. 9. Stars are classified on the basis of this.
  4. 13. A parallax angle allows us measure this
  5. 15. A stars life depends on this
Down
  1. 1. The color of stars classified as "A" stars
  2. 2. A red star is this temperature
  3. 4. The energy output of a star
  4. 6. Astronomers use this to measure distance to the stars
  5. 7. Astronomers use these to measure the distance of stars
  6. 8. This type of diagram plots the characteristics of stars
  7. 10. Breaks sunlight into colors of the rainbow
  8. 11. Plotted on the horizontal axis of the HR diagram
  9. 12. The color of stars classified as "M" stars
  10. 14. Cold clouds of gas and dust