A star of mass 2.0 1028 kg that is 4.6 x 1020 m from the center of a galaxyrevolves around that center once every 4.6 x 108 years. Assuming that this star isessentially at the edge of the galaxy, each of the stars in thegalaxy has a mass equal to that of this star, and the stars aredistributed uniformly in a sphere about the galactic center, estimate the number of stars in the galaxy. (Do not round your answer to an order of magnitude.)
stars