Stars: Properties and Classification
Stars: Properties and Classification
Stars: Properties and Classification
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The Hertzsprung-Russell Diagram<br />
The Main Sequence<br />
- all main sequence<br />
stars fuse H into He<br />
in their cores<br />
- this is the defining<br />
characteristic of a<br />
main sequence star.<br />
- more massive stars<br />
are more luminous <strong>and</strong><br />
hotter: L=4πR 2 σT 4