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The H-R Diagram

....This diagram is From Cornell University....

A good explanation of the H-R Diagram

An Introduction to the H-R Diagram

An HR Diagram Simulator - Cool!

Main Sequence      The Area on H-R diagram that most stars fall into:

          à About 90 % of known stars fall into main sequence.


Fusion            Process that fuels all stars is  Hydrogen Burning (From Cornell University)

        H + H   à He     + Energy

UPDATED: 11/04/07