Across
- 2. Galactic Cannibalism
- 3. Dark Matter
- 7. Population I stars
- 8. Population II stars
- 10. Flocculent galaxies
- 11. Irregular Galaxies
- 12. Stellar Populations
- 13. Disk Component
Down
- 1. Galactic Fountains
- 2. Grand Design Galaxies
- 4. Gravitational Lensing
- 5. Central Bulge
- 6. Hubble Law
- 9. Spiral Arms