What is the theoretical final state for a low-mass star like the Sun after it fades from being a white dwarf?

Answer

A theoretical black dwarf

After shedding its outer layers and existing as a white dwarf stabilized by degeneracy pressure, the remnant is theorized to slowly fade into a black dwarf over trillions of years.

What is the theoretical final state for a low-mass star like the Sun after it fades from being a white dwarf?
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