Astronomy

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Across
  1. 4. Explosive death of a star
  2. 6. Related to the Sun
  3. 7. Ice and dust celestial body
  4. 8. Natural satellite of a planet
  5. 9. Path of a celestial body around another
  6. 11. Small celestial body type
  7. 14. Rotating neutron star emitting beams
  8. 15. Blocking of one celestial body by another
  9. 17. Birthplace of stars
  10. 18. Where the sky meets the Earth
  11. 19. Our galaxy
  12. 20. Rocky object orbiting the Sun
Down
  1. 1. Group of stars forming a pattern
  2. 2. Space rock entering Earth's atmosphere
  3. 3. Collection of stars and gas
  4. 5. Celestial body orbiting a star
  5. 10. Region of space with gravity so strong
  6. 12. Distant, energetic celestial object
  7. 13. Point directly above an observer
  8. 16. When day and night are of equal length