Space crossword

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Across
  1. 3. spot or patch that appears from time to time on the sun's surface,
  2. 4. -the star round which the earth orbits.
  3. 7. curved path of a celestial object or spacecraft round a star, planet, or moon
  4. 8. small body of matter from outer space.
  5. 10. - a piece of rock or metal that has fallen to the earth's surface from outer space as a meteor.
  6. 11. system -the collection of eight planets and their moons in orbit round the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
  7. 12. year-a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 million million miles).
  8. 13. - a system of millions or billions of stars, together with gas and dust, held together by gravity
Down
  1. 1. natural satellite of the earth, visible by reflected light from the sun.
  2. 2. celestial body moving in an elliptical orbit round a star.
  3. 5. -an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
  4. 6. celestial object consisting of a nucleus of ice and dust
  5. 9. small rocky body orbiting the sun.
  6. 11. -a fixed luminous point in the night sky which is a large,