2 3 Orbiting body Period P P Semi-major axis a a (years) (AU) --------------------------------------------------------------- Mercury 0.241 0.387 Earth 1.000 1.000 Jupiter 11.86 5.20 Pluto 247.9 39.53 Moon 0.0748 0.00257 Callisto 0.0457 0.0126 ---------------------------------------------------------------- 2 3 Orbiting body P a const (years) (AU) --------------------------------------------------------------- Mercury Earth Jupiter Pluto Moon Callisto ----------------------------------------------------------------