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Stellar Evolution - http://www.astunit.com/tutorials/stellar.htm
Stars and the Hertzprung-Russell diagram (where a star's absolute luminosity is plotted against its surface temperature). |
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The Evolution of Stars - http://www.astronomy.ohio-state.edu/~ryden/ast162_4.html
Lectures on the main sequence, red giants, stellar clusters and variable stars. Semi-technical. |
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Evolution of Stars - http://www.milky-way.com/gb/sevol.htm
Simple explanation of birth, life, and death of stars. |
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Life and Birth of Stars - http://physics.gmu.edu/~jevans/astr103/CourseNotes/ECText/ch17_txt.htm
The physical structure of stars, energy generation, mathematical models, main-sequence stars and the birth of stars. |
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The Life and Death of Stars - http://www.nmm.ac.uk/server/show/conWebDoc.456
A detailed look at the evolution of stars from birth to death. |