Eighty percent of the stars on the H-R diagram are on the main sequence, and that is because the star is in hydrostatic equilibrium due to the _____.

Name: Eighty percent of the stars on the H-R diagram are on the main sequence, and that is because the star is in hydrostatic equilibrium due to the _____.
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Question

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The fusion of hydrogen in the core of the star releases energy that counteracts the gravitational force pulling inward, leading to hydrostatic equilibrium and the main sequence stage.

Eighty Percent of the Stars on the H-R Diagram Are