Online Astronomy eText: Satellites (Moons)
The Satellites (Moons) of Jupiter: Callisto Link for sharing this page on Facebook
(also see The Galilean Satellites of Jupiter, Io, Europa, Ganymede)

Callisto imaged by Voyager 2 in 1979
The Valhalla 2 region shown below is near the bottom of this image
(Calvin Hamilton)


A larger image of Callisto by Voyager 2
The Valhalla 2 region shown below is near the bottom of this image
(Calvin Hamilton)


Closeup of Valhalla 2 region of Callisto by Voyager 2
(Calvin Hamilton)


Galileo spacecraft closeup (7 miles wide) of intensive cratering in central part of Valhalla structure
(Galileo, NASA)


Galileo spacecraft color image of Callisto
(Galileo, JPL, NASA, apod020120)


True color image of Callisto by Galileo spacecraft
(Galileo Project, JPL, NASA, apod980511)


Contrast enhanced version of the previous image
(Galileo Project, JPL, NASA, apod980512)


The icy, heavily cratered surface of Callisto.


Jagged mountains on Callisto photographed by Galileo spacecraft
(Galileo, JPL, NASA, Arizona State University, apod010828)


A large scarp (cliff) on Callisto's surface photographed by the Galileo spacecraft
(Galileo Project, JPL, NASA, apod970218)


Image of a portion of a chain of impact craters, showing an area about 8 miles across.
Possibly caused by impact of an object which had split up, a la Comet Shoemaker-Levy 9.
(Galileo, NASA)


Gipul Catena (crater chain); an even longer chain of impact craters.
(Galileo, NASA)


Possible internal structure of Callisto
Icy crust (white), possible buried ocean (blue), rock (gray) and ice (white) mixture in deep interior
(NASA, JPL, apod981106)


Comparison of possible internal structures of the Galilean satellites of Jupiter
(Calvin Hamilton)


Comparison of sizes of smaller planets and larger moons
(Calvin Hamilton)