What stellar phase immediately precedes the formation of a white dwarf when a low/intermediate mass star exhausts its core fuel?

Answer

Red giant phase

When a low to intermediate mass star exhausts hydrogen fuel in its core, it swells into a red giant, shedding its outer layers to leave behind the white dwarf remnant.

What stellar phase immediately precedes the formation of a white dwarf when a low/intermediate mass star exhausts its core fuel?

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