In this image of Jupiter and the Galilean Moons we see The Great Red Spot on the western limb. Also You will see a shadow on the eastern limb near the pole. That is the shadow of the
moon Ganymede. Ganymede is just off the western limb at 0.7658 Radius of Jupiter.
Also you can see Io off Jupiter's western limb at 4.5931 Radius . Just below Io You can see the Moon Calisto & it is 5.4920 Radius from Jupiter. The Radius of Jupiter is 7,1492 Km
