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How old is a white dwarf star?

Answer:
White dwarfs are the remains of medium sized stars that have ended their life.

The oldest known white dwarf G29-38 which is a young white dwarf is aged at about 500 million years old. Scientists,, estimate that a life cycle of a white dwarf (before it turns into a black dwarf) is 10200 years. It is for those reasons, no black dwarfs are expected to exist yet.
First answer by Cosmospup. Last edit by Cosmospup. Contributor trust: 854 [recommend contributor recommended]. Question popularity: 1 [recommend question].

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