Callisto's Valhalla Region Target Name:   Callisto Spacecraft:   Voyager 2 Produced by:   Calvin J. Hamilton Copyright:  Calvin J. Hamilton Date Taken:   6 March 1979 Date Released:  10 February 1995 (Publisher Permission Request)

• Callisto

This close up of Callisto shows the heavily cratered surface and the prominent ring structure known as Valhalla. It was acquired by Voyager 1 on March 6, 1979. Valhalla's bright central area is about 300 kilometers across with sets of concentric ridges extending out to 1,500 kilometers from the center.

This image is Copyright © by Calvin J. Hamilton. Any commercial/for-profit use of this image needs to be addressed to Calvin J. Hamilton.