Jupiter; Eclipses on Other Worlds

This is Jupiter, surrounded by gas clouds. On the surface of the clouds are three dark spots, shadows of the three Jupiter moons seen as small white spots to the left (Io, the closest, Europa the second sitting about 7 o'clock from Io, and Callisto, the small smudge-spot far to the left). Callisto's shadow is the elongated one at the southern pole. On Jupiter, these would all look like eclipses.