Astronomy puzzle

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Across
  1. 1. - Brahe’s first name
  2. 3. - Force pulling planets
  3. 5. - Invented telescope
  4. 6. - Study of space
  5. 10. - Exploding star
  6. 12. - Sun-centered system
  7. 14. - Precise star mapper
  8. 16. - Laws of planetary motion
  9. 17. - Earth-centered model
  10. 19. - Star signs band
Down
  1. 2. - Star pattern
  2. 4. - Planet’s backward motion
  3. 7. - Tool to see stars
  4. 8. - Galileo’s studied planet
  5. 9. - Ringed gas giant
  6. 11. - Jupiter’s moon observer
  7. 13. - Watching the skies
  8. 15. - Sun-centered model creator
  9. 18. - Oval-shaped orbit
  10. 20. - Planet’s path