Questions tagged [star-evolution]

Questions regarding the life cycle and stages of nucleosynthesis in a star.

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How rapidly does a main-sequence star become a giant star? [duplicate]

I do not mean when in a star's lifetime it starts to develop into a subgiant, then a red giant, then briefly shrinks again, then becomes a giant or supergiant again, or whatever.... I mean how many ...
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Will interstellar medium slow down the rotation of stars?

This is a side question from my previous one, will interstellar medium slow down the rotation of stars? Will it be significant enough to be considered as a factor? What are the other factors that slow ...
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Why red giants have cooler surface than MS stars?

I know that with increasing age and depletion of hydrogen in the core the radiation inside a main sequence (MS) star increases pushing the envelope/surface of the star outwards. What I don't ...
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Hydrogen burning vs Hydrogen fusing

Does the term "Hydrogen burning" mean the same as "Hydrogen fusing" in astronomy? If not, then what is the product of "Hydrogen burning"? Assume the product of "...
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Are planet-destroying quakes possible or observable?

The Gutenberg-Richter-Law is a very-well studied relationship between the magnitude and total number of (earth)quakes. In theory, there is no upper bound for the size of a quake other than the size of ...