A hypothetical planet Upiter orbits the sun. Upiter's semi-major axis is 5.2 AU. The mass of Upiter is .001 that of the sun. The eccentricity is 0.2. For this problem, ignore the other planets. d. Compute Upiter's speed when it is closest to the sun. I believe the equation I use for this is v^2=GM(2/r - 1/a), where a is the semi-major axis and r is the distance at perihelion. I know G is usually in m^3/kg/s^2 but since I'm given units in AU and solar masses, should I convert G to AU^3/Msun/s^2?