Space and Astronomy 1.

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Across
  1. 6. Belt between Mares and Jupiter
  2. 7. Nearest star
  3. 8. Brightest star
  4. 10. Mars moon and son of Ares
  5. 11. A shoulder of Orion
  6. 13. Brightness if a star
  7. 14. Ringed planet
  8. 15. The event ...
  9. 16. The Maiden constellation
  10. 17. Hole
Down
  1. 1. Constellation wit a square
  2. 2. Former Planet
  3. 3. Nebula AKA Barnard 33
  4. 4. Galaxy, daughter of Cassiopeia
  5. 5. Largest inner planet
  6. 9. God of the sea
  7. 10. Beheaded Medusa
  8. 12. Very regular
  9. 13. Pulls the tides
  10. 16. Brightest Star in Lyra