Celestial Objects

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Across
  1. 5. : The path an object follows around another object
  2. 6. : A large object that orbits a star
  3. 9. : A small planet-like object that orbits the Sun
  4. 11. : The distance light travels in one year
  5. 12. : The star at the centre of our solar system
  6. 14. : A group of stars within a galaxy
  7. 17. : The spinning of an object on its axis
  8. 20. : An imaginary line through the centre of a rotating object
  9. 21. : An object that orbits a planet
  10. 23. : The vast area beyond Earth’s atmosphere
  11. 24. : The region between Mars and Jupiter with many asteroids
  12. 25. : A cloud of gas and dust where stars are formed
Down
  1. 1. : A small rocky object that orbits the Sun
  2. 2. : A massive ball of gas that produces its own light and heat
  3. 3. : A natural satellite that orbits a planet
  4. 4. : The galaxy that contains our solar system
  5. 7. : A large collection of stars, gas and dust held together by gravity
  6. 8. : The movement of an object around another object
  7. 10. : A star and all objects that orbit it
  8. 13. : A region of space with gravity so strong that nothing can escape
  9. 15. : The force that pulls objects toward each other
  10. 16. : An icy body that develops a tail when near the Sun
  11. 18. : All of space and everything in it
  12. 19. : The planet we live on
  13. 22. : The visible stream of gas and dust from a comet