Across
- 1. elongated nucleus with sprial arms
- 3. a flattened cloud of billions of stars
- 7. no arms
- 9. the disk of the galaxy
- 10. no obvious nuclear bulge or spiral arms
- 11. (Mpc)
- 12. our galaxy
- 13. very luminous
- 14. a system with millions of stars
Down
- 2. objects used to map spirals
- 4. very little gas
- 5. velocity of recession and distance
- 6. spherical cloud of stars and star clusters
- 8. mass that has no light
- 11. large spiral galaxy