Astronomy

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Across
  1. 4. a type of galaxy
  2. 7. moon’s closest point to Earth
  3. 9. the archer
  4. 10. North Star
  5. 12. dirty snowball
  6. 14. ringed planet
  7. 15. point directly overhead
  8. 17. moon’s farthest point from Earth
  9. 18. the hunter
  10. 20. star’s apparent brightness
  11. 21. god of the sea
Down
  1. 1. the red planet
  2. 2. largest gas giant
  3. 3. large groups of stars
  4. 5. the twins
  5. 6. minor planet
  6. 8. third rock from sun
  7. 11. large space rock
  8. 13. group of stars forming an image
  9. 16. sun’s path through constellations
  10. 19. the lion