Solar System

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Across
  1. 5. : only natural satellite
  2. 6. belt
  3. 8. :all existing matter and space considered as a whole
  4. 10. :the fourth planet from the sun
  5. 11. :a minor planet of the inner Solar System
  6. 12. :a planet whose orbit lies outside the
  7. 15. :a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such
  8. 16. :A planet whose orbit lies within the
  9. 21. :relating to the earth
  10. 22. : the biggest star seen to the human eye
  11. 23. :a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
Down
  1. 1. :the sixth planet from the sun
  2. 2. :the second planet from the sun
  3. 3. :the fifth planet from the sun
  4. 4. :a large planet of relatively low density consisting predominantly of hydrogen and helium
  5. 7. :a cloud of comets and other objects.
  6. 9. :the only known planet that can support
  7. 13. :any of the large bodies that revolve around the sun in the solar system
  8. 14. planets Jupiter and Mars
  9. 17. belt
  10. 18. : located roughly between the orbits of
  11. 19. :the closet planet to the sun
  12. 20. :the seventh planet from the sun