Which of the following properties are NOT useful in determining the masses of stars in a typical binary system?
A) The period of the orbits of the two stars is not useful.
B) The average separation between the two stars is not useful.
C) The radii of the two stars is not useful.
D) The velocities of the two stars is not useful.
E) All of the above are useful for determining the masses of stars in a binary.

Question

Quizplus · Accepted Answer

The radii of the stars alone cannot be used to determine the masses of stars in a typical binary system. Other parameters such as the period of the orbits, average separation between the stars, and velocities of the stars are required for mass determination.

Which of the Following Properties Are NOT Useful in Determining