PIA00484: Concentric Rings Surrounding Valhalla
Target Name: Callisto
Is a satellite of: Jupiter
Mission: Voyager
Spacecraft: Voyager 1
Instrument: VG ISS - Narrow Angle
Product Size: 740 x 750 pixels (width x height)
Produced By: JPL
Producer ID: P22194
Addition Date: 1997-01-09
Primary Data Set: Voyager EDRs
Full-Res TIFF: PIA00484.tif (688.5 kB)
Full-Res JPEG: PIA00484.jpg (191.9 kB)

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Original Caption Released with Image:

The concentric rings surrounding Valhalla are perhaps the most distinctive geological feature on Callisto. This Voyager 1 close-up shows a segment of the ridged terrain. The presence of superimpact craters shows that the rings formed early in Callisto's history; however, the density of craters is less here than on other parts of the satellite, where the surface is older.

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