Ganymede - Voyager 2

Color image of Jupiter's moon Ganymede from 6 million km

Ganymede
Voyager 2 image of Jupiter's largest moon Ganymede. This image was taken on 2 July 1979, from 6 million km, 6 days before Voyager 2's closest approach to the satellite. The light bluish regions near the north and south poles visible in this image, possibly result from of water ice or frost. Ganymede is 5,300 km in diameter. (Voyager 2, P-21749)

Ganymede;
Galilean Satellites
Planetary Ices
Voyager Missions