Across
- 1. a crestial body moving in an elliptal
- 3. having or representing the sun as the centre
- 7. 24hours
- 8. the distance light travels in a vacuum
- 9. a unit of astronomical distance eqivalent to the distance that light travels
Down
- 2. the collection of eight planets and there moons in orbit around the sun
- 4. having or representing the earth as the centre
- 5. an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
- 6. plane the plane passing though the equator of the earth
- 10. 365 days