Stellar Evolution (of sun-like stars). How do stars age & die?. The Main Factor. The evolution of any star is controlled by its mass . Mass controls gravity. Gravity controls density. Density controls how fast the star uses up its available fuel.
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How do stars age & die?
9 billion years later,sun ends its middle- aged life here.
Sun starts its middle-age
He C in core) the sun grows hotter and turns yellow again.
The sun’s planetary briefly start the triple alpha process again. The star pulses like a beating heart.
nebula might look
like this from the
surface of Pluto!
A nearly dead black dwarf star. briefly start the triple alpha process again. The star pulses like a beating heart.