Introduction to Geochemistry
Introduction to Geochemistry
Introduction to Geochemistry
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Hertzsprung-Russell diagram<br />
! Solar luminosity v. log surface temperature<br />
• Shows a definite relationship among observable stars<br />
• Linear relation (main sequence) if H fusion is the dominant<br />
process<br />
• Red dwarfs => Blue giants<br />
• Sun (~6,000 K)