0 H shsu.blackboard.com is Blackboard Learn low n Tum l': mm A, m c. The unseen object must be VERY MASSIVE, compared to the star that is orbiting around it. d. The unseen object is a VERY DIM main-sequence star. QUESTION 3 Another way of detecting binary systems is through spectroscopic analysis of the light from the stars, observing a Doppler shifting of the stars' spectral lines to determine the stars' motions. What limitations are there to this method of detection? a. We can't measure the radial velocities of each star in the system. b. We can't easily determine the inclination of the orbit. c. We can't nd the diameters of the stars. d. We can't determine the luminosities of the stars. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save Al