Which important stellar parameter can be determined by the study of binary stars?
A) The age of the stars
B) Stellar masses
C) Surface temperatures of the stars
D) The distance of the stars from Earth

Question

Quizplus · Accepted Answer

By studying binary stars and observing their orbital motion, astronomers can determine the masses of the stars. This is because the orbital period and separation distance are dependent on the masses of the stars. Other important parameters such as age and surface temperature cannot be directly determined from binary star observations. The distance to binary stars can be determined using techniques such as parallax, but this is not the most important parameter that can be determined from binary star studies.

Which Important Stellar Parameter Can Be Determined by the Study