Across
- 2. Size of longest lasting stars
- 9. Stage of a star in equilibrium
- 11. Energy producing reaction in a star
- 12. Element of the Sun
- 13. Shape of an orbit
Down
- 1. Distance from a star for liquid water
- 3. Large, bright star
- 4. Hot and dim star
- 5. Lightless dead star
- 6. Phase of water best for life to exist
- 7. Brightness of a star
- 8. Birthplace of a star
- 10. When two hydrogen atoms fuse together