Question: Observing binary star systems is important because Question 14 options: a) they allow us to accurately determine the distance to stars. b) they allow us

Observing binary star systems is important because Question 14 options: a) they allow us to accurately determine the distance to stars. b) they allow us to accurately measure the luminosity of stars. c) they allow us to accurately measure the color index of stars. d) they allow us to accurately determine the mass of stars. e) None of the above, there is no special reason to observe binary star systems

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