Sirius is a visual binary with a period of 49.94 yr. its measured trigonometric parallax is 0.37921 ′′ ± 0.00158 ′′ and, assuming that the plane of the orbit is in the plane of the sky, the true angular extent of the semi-major axis of the reduced mass is 7.61 ′′ . the ratio of the distances of sirius a and sirius b from the center of mass is a a /a b =0.466. (a.) find the mass of each member of the system. report your answer in units of solar mass (m ⊙ ), where 1 m ⊙ = 1.989×10 30 kg. (b.) the absolute bolometric magnitude of sirius a