The images were acquired when Galileo was in Jupiter's shadow, peering back toward the Sun, hidden behind the planet. The spacecraft was located only about 0.15 degrees above the ring plane at the time, making the images highly foreshortened in the vertical direction.
North is to the bottom.
Jovian moon, and has a half-thickness that is the same as Amalthea's maximum excursion off Jupiter's equatorial plane. Further to the right, using much higher sensitivities, another faint but wider stripe becomes visible. This last band is associated with Thebe, a Jovian moon with a mean radius of 50 km. The ring lies principally inside Thebe's orbit and has a thickness like Thebe's elevation above Jupiter's equatorial plane.