1. The problem statement, all variables and given/known data One of Saturn's satellites travels in a circular orbit at a velocity of 19481 m/s. Saturn's mass is 5.69x10^26 kg. What is the radius of the satellites orbit? 2. Relevant equations Fg = (G * m1 * m2) / (r^2) Fc = (m*v^2)/(r) 3. The attempt at a solution The centripetal force is equal to the force of gravity in this case. Therefore: (G * m1 * m2) / (r^2) = (m*v^2)/(r) (G * m1) = (v^2 * r) (6.67x10^-11 * 5.69x10^26) = ((19481)^2 * r) r = 100 003 593.9 meters ? Thanks for your help.