The Sun, Our Star

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Across
  1. 4. the color of the coolest stars
  2. 5. 2nd main gas in our star
  3. 6. our galaxy
  4. 8. closest star to Earth
Down
  1. 1. the size of our star
  2. 2. determines how hot a star is
  3. 3. the color of the hottest stars
  4. 5. main gas in our star
  5. 7. the color of our star
  6. 8. gigantic ball of very hot gases