An astronomer is measuring the light emitted by a binary star system. One of the stars appears to be much more massive than the other. The astronomer notices that the smaller star orbits the larger one in a nearly circular orbit at a distance ofr=856×106 km. Through careful observation, she measures the smaller star's orbital speed to bev=12.1 km/s. Using Keppler's Laws she calculates the mass of the larger star. What is it? UseG=6.67×10−11N⋅m2/kg2.M=×1030 kg(±0.05×1030 kg)