Solar System Objects

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Across
  1. 3. A system of millions or billions of stars
  2. 6. The collection of eight planets and their moons in orbit around the sun.
  3. 8. The curved path of a celestial object or spacecraft round a star, planet, or moon
  4. 10. A small body of matter from outer space that enters the earth's atmosphere.
  5. 11. The natural satellite of the earth, visible at night and by reflected light from the sun.
  6. 12. A fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
Down
  1. 1. A unit of astronomical distance equivalent to the distance that light travels in one year.
  2. 2. A celestial body moving in an elliptical orbit around a star.
  3. 4. A small rock orbiting the sun.
  4. 5. Lumps of ice, dust, and rock that orbit the Sun.
  5. 7. An artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.
  6. 9. A spot or patch that appears from time to time on the sun's surface
  7. 10. A piece of rock or metal that has fallen to the earth's surface from outer space as a meteor.
  8. 12. The star round which the earth orbits.