Asked in Stars, Sirius
Stars
Sirius

Why does white dwarf star Sirius b have a mass comparable to the sun?

Answer

Wiki User
06/16/2012

Gas doesn't weigh much, since a white dwarf is the core of a red giant. (the core is basically all the star's weight-the gases don't weigh much, so the weight doesn't differ much if a star lets go of all of its gas, since that's how white dwarfs are made)