Space Crossword Puzzle

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Across
  1. 1. A celestial object consisting of nucleus of ice and dust
  2. 3. A spot or patch that appears from time to time on the sun's surface appearing dark by contrast with it's surroundings
  3. 4. A fixed point in the night sky
  4. 7. The collection of planets
  5. 9. A small rocky body orbiting the Sun
  6. 11. The natural satellite of Earth
  7. 12. A unit of astronomical distance
  8. 13. A celestial body in orbit of the sun
Down
  1. 2. A small body of matter from Outer Space
  2. 4. An artificial body placed in orbit round planets for information or communication
  3. 5. A system of millions or billions of stars
  4. 6. A peice of rock or metal from Outer space that has fallen to the Earth's surface
  5. 8. A massive star
  6. 10. The curved path of a celestial object