2. Brown
3. Bronze/Old Gold
4. Red
5. Orange
6. Yellow/Gold
7. Silver
8. Blue
9. Green
10. Red
11. White
12. Brown
13. Black This list indicates a slow evolution and a faster, more dramatic, de-evolution. https://imagine.gsfc.nasa.gov/educators/lessons/xray_spectra/background-lifecycles.html
https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve
http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#.WuFfx2CG_mQ
https://www.schoolsobservatory.org/learn/astro/stars/cycle