Across
- 3. a satellite that orbits a planet
- 5. the number of planets that orbit the sun
- 7. a large body in orbit around a star
- 9. the closest planet to the Sun
- 10. demoted to a dwarf planet in 2006
- 12. the planet known for its rings
- 13. the coldest planet
- 15. the period where Earth completes a single revolution
- 16. the third planet from the Sun
- 17. the center of our solar system
Down
- 1. to spin on its an axis
- 2. the sloping position causing Earth's seasons
- 3. the name of our galaxy
- 4. the biggest planet
- 6. the hottest planet
- 8. the furthest planet
- 11. the path of one object around another object
- 14. the red planet