We know the white dwarf star Sirius B has a mass comparable to the Sun because
A)of its measured color.
B)of its measured temperature compared to Sirius A.
C)it is part of binary star system with Sirius A.

Question

Quizplus · Accepted Answer

Sirius B being a part of a binary star system with Sirius A allows astronomers to calculate the mass of Sirius B by measuring the orbital period and distance between the two stars. This indicates that Sirius B has a mass comparable to the Sun. The other choices are not accurate methods for determining the mass of a star.

We Know the White Dwarf Star Sirius B Has a Mass