Across
- 1. the path an object follows as it revolves around another object
- 4. the movement of one object around another
- 6. an object that orbits around another object
- 7. the changes in appearance of the moon's shape
- 9. star pattern
- 11. National Aeronautics Space Administration
Down
- 2. the spinning of a planet around its axis
- 3. attraction that pulls things together
- 5. tool used to see far distances
- 8. a burning ball of hot gas
- 10. imaginary line through earth