Across
- 2. upper limit on mass of stars (xMsun)
- 11. the "hot" side of the H-R diagram
- 12. stars form due to _____ gas and dust clouds
- 14. have diameters more than 100x our Sun
- 16. a developing star
- 17. Russell's first name
- 18. swirling winds cause a nebula to take this form
- 21. percentage of stars along the main sequence (roughly)
- 23. (T/F) main sequence (MS) stars vary in temperature
- 24. have diameters between 10x - 100x our Sun
- 25. fate of our Sun, stars nearing end of life
Down
- 1. xx millions of years for our sun from protostar to MS
- 3. Hertzsprung's first name
- 4. absolute or apparent
- 5. life path depends on this
- 6. (T/F) main sequence (MS) stars fuse helium into hydrogen
- 7. stars that have been or will be on main sequence
- 8. most luminous stars are here
- 9. runs from the upper left to lower right
- 10. Hertzsprung's country of origin
- 13. neighbor star, not on the main sequence
- 15. Russell's country of origin
- 19. fate of a massive star
- 20. M-type stars are here
- 22. nuclear fusion begins at this (xx million *F) temperature