Many images we have of the moons around Jovian worlds are like this image of Adrastea. This is the discovery image of Adrastea. It was taken by the Voyager spacecraft 23 hours before the closest approach to Jupiter. This image is a wide angle picture taken with a 15 second exposure. The range is 1.4 x 106 km. The faint line is the Jovian ring. Adrastea is a small dot above the arrow. The brighter dot to the left is a star.