You need the radius of all the orbits earth radius is 150 million km 1. 150 million x 10 = 1500 million From the website below Saturn would be the closest at 1,429 million km 1,500,000,000 - 1,429,000,000 = 71,000,000 km = 7.1 * 10^7 km I hope this helps :D
