Across
- 2. smallest planet.
- 5. known for its rings.
- 7. a white star.
- 8. dwarf planet.
- 10. cold or dark spots on the sun.
- 15. color of the hottest star.
- 16. farthest planet from the sun.
- 19. what is at the center of galaxy's.
Down
- 1. hottest planet.
- 3. an image made of stars.
- 4. the color of the coldest star.
- 5. A ball of gas.
- 6. known as the red planet.
- 9. biggest planet in our solar system.
- 11. a point of time.
- 12. a cluster of stars and dust.
- 13. the brightness of a star.
- 14. preborn star.
- 17. spins on its side and spins backwards.
- 18. only planet to hold life.