Across
- 1. brightness of a star
- 4. are galaxy
- 6. time measure in space
- 8. electromagnetic radiation
- 9. a big explosion
- 10. irregular in shapes
- 12. ellipsoidal shape
- 14. spiral,elliptical and irregular
- 15. leftovers of a star
Down
- 2. dead star
- 3. H-R diagram
- 5. a graph that shows relationship between stars
- 7. are sun
- 11. a large cloud of gas
- 13. were the galaxy's and stars are