Across
- 5. A chunk of burning rock traveling through earth's atmosphere
- 7. The distance light travels in one year
- 9. The first stage in a star lifecycle
- 14. The expanding outer shell of a star to become a white dwarf
- 15. This is the largest planet
- 16. A small star with a high temperature and low brightness
- 17. Areas on the sun that are cooler than other place
- 19. The explosion of a very large star
Down
- 1. An object made up of ice and dust that is in space
- 2. A system of two stars orbiting each other
- 3. A huge cloud of dust and gas from which stars form from
- 4. A star and its planets
- 6. This was once a planet, but now is not
- 8. the final four planets
- 10. A large star with low temperature but high brightness
- 11. The method of studying and object by examining the visible light
- 12. The amount of light from a star that reaches earth
- 13. The total amount of light given off by a star
- 18. The large star in the center of our solar system
- 19. An enormous hot ball of gas