Chapter 5 Assignment i Saved Help Save & Exit Submit Check my work 13 Required information Part 1 of 2 A star near the visible edge of a galaxy travels in a uniform circular orbit. It is 44,900 ly (light-years) from the galactic center and has a speed of 275 km/s. 1.04 points Estimate the total mass of the galaxy based on the motion of the star. Gravitational constant is 6.674*10-1 m3/(kg.s2) and mass of the Sun Mg=1.99 x 1050 kg. ebook billion solar mass Hint Print References