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Consider a star cluster that starts out with main sequence stars of spectral type O, B,...

  • Consider a star cluster that starts out with main sequence stars of spectral type O, B, A, F, G, K, M.
  • Explain which spectral types will be present when the cluster is 108 years old.
  • Explain which will be present when it is 1010 years old. (Note: Review the slide in the "Stars" lecture that shows the lifetimes of stars on different parts of the HR diagram to help you answer this question)
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