Across
- 1. spiral galaxies have these
- 4. has a central bulge
- 5. collection of gas and dust
- 6. hundred billion stars in Milky Way
- 8. no defined shape
- 9. spread through out elliptical galaxies
Down
- 2. system made up of celestial bodies
- 3. way galaxy
- 5. makes Earth orbit the Sun
- 7. shaped like ovals