astronomy puzzle - jose c

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Across
  1. 4. the point in the orbit of an object
  2. 6. Brightest star in the northern constellation of Lyra
  3. 8. Creator of the theory of relativity
  4. 10. representing the suns apparent path during the year
  5. 11. Bezos
  6. 12. Elon
  7. 14. contains our solar system
  8. 17. added day
  9. 18. how bright star appears from earth
  10. 19. greek polymath
Down
  1. 1. representing the sun as the center
  2. 2. representing the earth as the center
  3. 3. Italian astronomer
  4. 5. found out about gravity
  5. 7. creator of the big bang
  6. 9. Brightest star in the night sky
  7. 13. space telescope
  8. 15. star brightness in lightyears
  9. 16. distance of light travels
  10. 20. named after a hunter in greek mythology