In about 7 billion years our sun will become a white dwarf, the name for a star that depleted its nuclear fuel and only shines as a remnant of what it once was. No star is ever born as a white dwarf ...
Significance for Binary Star Evolution Ultra‑massive white dwarfs are linked to the Q‑branch in the Gaia Hertzsprung–Russell diagram. That branch shows cooling delays up to one billion years from core ...