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Originally Posted by indiana
1) No one can prove such statement. It is YOUR own answer!
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Not so. The hydrogen/helium ratio is easily proven by spectometer analysis.
And I'm surprised by Kingwinner's textbook. The amount of helium should increase. When there is no more hydrogen to burn, the star will start to burn the helium instead.
Here's a brief text about the life of a star:
http://www.astro.keele.ac.uk/workx/s...pageS_26M.html
Here is a more in-depth article:
http://science.howstuffworks.com/star.htm
