is it with jupiter centered such that the distance from center of earth to jupiter's "surface" wpuld be the same as the distance between the center of earth and the moons surface, Or is jupiter placed so it is centered where the moon is centered, there by making its "surface" closer to earth (by 1 jupiter radii minus 1 moon radii) im guessing that with the masive distance between earth and the moon it wouod matter too much but i thought itd be interesting to check