Family Portrait of Jupiter's Great Red Spot and the Galilean Satellites
Jupiter's Galilean Satellites
Jupiter with Satellites Io and Europa
Jupiter and Three Galilean Satellites
Scale Comparison of the Inner Small Satellites of Jupiter
Family Portrait of Jupiter's Great Red Spot and the Galilean Satellites

Family Portrait of Jupiter's Great Red Spot and the Galilean Satellites

Courtesy of NASA/JPL/DLR

http://photojournal.jpl.nasa.gov/catalog/PIA00600


This "family portrait" of the Jovian system includes the edge of Jupiter with its Great Red Spot, and Jupiter's four largest moons (the Galilean satellites). The image is scaled for size, but objects appear much closer to each other here than they actually are. From top to bottom, the moons shown are Io, Europa, Ganymede and Callisto.

The Great Red Spot, a storm in Jupiter's atmosphere, is at least 300 years old. Winds blow counterclockwise around the Great Red Spot at about 400 kilometers per hour (250 miles per hour). The storm is larger than one Earth diameter from north to south, and more than two Earth diameters from east to west. In this oblique view, the Great Red Spot appears longer in the north-south direction.

Europa, the smallest of the four moons, is about the size of Earth's moon, while Ganymede is the largest moon in the solar system.

Jupiter and its largest satellites have all been scaled to a common factor of 15 km (9 mi) per pixel.