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> Impact crater on Callisto

Impact crater on Callisto

author: Nasa/JPL/Novapix

reference: a-jup04-00500

Image Size 300 DPI: 13 * 14 cm

Callisto was revealed by the Voyager cameras to be a heavily cratered and hence geologically inactive world. This mosaic of Voyager 1 images, obtained on March 6 from a distance of about 400,000 kilometers, shows surface detail as small as 10 kilometers across. The prominent old impact feature Valhalla has a central bright spot about 600 kilometers across, probably representing the original impact basin. The concentric bright rings extend outward about 1500 kilometers from the impact center.

Keywords for this photo:

1979 - ASTRONOMY - CALLISTO - CRATER - GALILEAN SATELLITE - IMPACT CRATER - JOVIAN MOON - SATELLITE - VALHALLA - VOYAGER - VOYAGER 1 -