Across
- 3. a rotating cloud of dust and gas
- 5. a large ball of glowing gases
- 9. The ______________ of the Sun is about 5500C
- 12. the edge area of a galaxy
- 13. the distance light travels in one year
- 15. a giant system of stars
- 16. one of the main components of the Sun
- 17. the center part of a galaxy
Down
- 1. a star so massive that nothing, not even light, can escape it
- 2. a pattern of stars
- 4. the brightness of a star
- 6. a star becomes this when its fuel runs out
- 7. when a star explodes it is called a __________
- 8. a 'baby' star
- 10. the closest star to the Sun
- 11. the Milky Way Galaxy is this type of galaxy
- 14. another main component of the Sun