1. The problem statement, all variables and given/known data The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 4.2 earth years. What are the asteroid's orbital radius and speed? 2. Relevant equations T = 2pi sqrt(r/g) 3. The attempt at a solution I tried manipulating the above equation to solve for r. I got 4.383, but it was wrong.