What percentage of its total mass is estimated to be shed by a Sun-like star during its late-stage giant expansion?
Answer
Between $20\%$ and $30\%$
Estimates indicate that a star similar to the Sun will expel a substantial portion of its material, ranging from $20\%$ to $30\%$ of its initial mass, during the unstable red giant and AGB phases before settling as a white dwarf.
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