Death of a low-mass star:

What is a red giant?
What is a white dwarf?
What is a planetary nebula?

Quick explanation

Stars less massive than 8 Solar masses are referred to as "low-mass".

Toward the end of its life, a low-mass star swells to an enormous red giant. Later, the outer layers are shed as a planetary nebula, while the nucleus contracts to a white dwarf.

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