Across
- 6. classification system for stars based on surface temperature
- 7. core collapses
- 10. helium is fused into carbon
- 11. birthplace of all stars
- 12. does not glow
Down
- 1. explosion of a massive star
- 2. collapsed supernova
- 3. takes energy instead of giving energy
- 4. dense area with intense gravitational pull
- 5. stage our sun is in
- 8. leftover collapsed core
- 9. graph that plots a stars magnitude (brightness) and spectral class (temperature)