Across
- 3. Held together by mutual gravitational pulls
- 4. Something that can be used to determine a star's distance
- 5. Galaxy type that is smooth
- 7. Galaxy that has a bar in its bulge
- 10. relation between recessional velocity and distance
- 11. Gravitationally bound stars
- 12. Small galaxy clusters
- 13. Galaxy type with a flat star forming disk
- 14. Where cluster and old stars tend to reside
Down
- 1. Disk A flattened region of gas and dust
- 2. Not fitting in other standard galaxy classifications
- 3. The center section of a galaxy
- 6. Claims velocity of recession of a galaxy is proportional to its distance
- 8. Type of galaxy that emits energy as long-wavelength radiation
- 9. Shift of an object cause by hubble flow