Across
- 1. How apparent velocity of recession and distance are related.
- 6. Our galaxy formed from a single large protogalaxy.
- 8. Flattened cloud of stars in a galaxy's center.
- 9. Extended Halo where extra mass is located.
- 10. Quasi-stellar objects.
- 11. Any chemical element heavier than helium.
- 12. States that all mass of a galaxy is near the center.
- 13. Where most of a galaxy's stars and gas are located.
- 14. Used to describe the rotation of our galaxy.
Down
- 2. Galaxies emitting energy at different wavelengths.
- 3. Resource used to track spiral arms.
- 4. Halo and central bulge referred to together.
- 5. Swarms of gas and stars that reach outward from the disk.
- 7. Sphere shaped cloud of star clusters with no gas or dust.
- 13. Invisible mass.