Across
- 1. imaginary line that runs through the earth's poles
- 3. large natural object that orbits a planet
- 6. when a sliver of moon shows
- 8. a force that pulls objects toward each other
- 9. to spin around
- 11. our galaxy
- 12. the way an object appears to move
- 15. to appear bigger
- 16. object that revolves around a star
Down
- 2. our star
- 4. path a revolving body follow
- 5. group of stars forming a pattern
- 7. ball of hot gases that gives off light and heat
- 10. to appear smaller
- 13. amount of illuminated moon seen from earth
- 14. to travel around another object in space