Star Systems & Galaxies

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Across
  1. 2. galaxy that looks like a round or flat ball
  2. 5. binary stars: clue that tells there is a 2nd star
  3. 6. cluster of stars that is spread out with new stars
  4. 10. galaxies are held together by
  5. 12. in binary stars the small star is
  6. 13. globular cluster contain more than a ___ stars
  7. 15. cluster of stars close together with old stars
  8. 16. galaxy with bulge in middle and spiral arms
  9. 17. groups of two or more stars are called star ____
  10. 18. active young galaxies
  11. 19. new stars form where in a spiral galaxy
Down
  1. 1. in binary stars the massive star is
  2. 3. galaxy that does not have a regular shape
  3. 4. open clusters contain bright _____
  4. 7. two or more stars
  5. 8. large groupings of stars
  6. 9. one star blocks the light from another
  7. 11. how many major types of star clusters are there?
  8. 14. all stars in a cluster formed from the same ____
  9. 15. huge groups of stars, dust, and gas