0 shsu.blackboard.com s Question Completion Status: QUESTION 1 Based on what you discovered in lab, for binary stars in orbit around one another, the sum of the masses is (directly/inversely) proportional to the average distance between the stars (a) to the power (simply type the number), and (directly/inversely) proportional to the period of the orbit (P) to the power (again, simply type the number). QUESTION 2 A star is observed moving in a circular orbit around an unseen object. Based on the orbital path of the star, it is determined that the center