Across
- 3. a system of stars
- 6. a collection of planets in orbit around the sun
- 8. the curved path around a star to make a year
- 10. a small body of matter that enters the earths atmosphere
- 11. the natural satellite of the earth, visible by reflecting off the sun
- 12. a large, illuminous body in the sky
Down
- 1. a unit of astronomical distance
- 2. body orbiting around a star
- 4. rock orbiting the sun
- 5. a celestial object consisting of a nucleus of ice and dust
- 7. an artificial body placed in orbit round the earth or moon
- 9. a spot that appears from time to time on the suns surface
- 10. a piece of rock that has fallen to earths surface
- 12. the star that earth orbits