Astronomy

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Across
  1. 2. A small body of matter from outer space that enters Earths atmosphere
  2. 5. Sixth planet from the sun
  3. 7. Second planet from the sun
  4. 10. Fifth planet from the sun
  5. 12. A group of stars forming a recognisable pattern
  6. 14. Eighth planet from the sun
  7. 15. The planet closest to the sun
  8. 17. Celestial bodies of gas that shine through the night sky
Down
  1. 1. Representing the sun as centre
  2. 3. The fourth planet from the Sun
  3. 4. A celestial body moving in an elliptical orbit around a star
  4. 6. The branch of science that studies celestial objects, space and the universe as whole
  5. 8. The planet which we live on
  6. 9. Representing Earth as centre
  7. 11. All existing matter and space considered as a whole
  8. 13. A small rocky object that orbits the sun
  9. 16. Seventh planet from the sun