PIA02253: Callisto
Target Name: Callisto
Is a satellite of: Jupiter
Mission: Voyager
Spacecraft: Voyager 2
Instrument: VG ISS - Narrow Angle
Product Size: 800 x 800 pixels (width x height)
Produced By: JPL
Producer ID: P21745
Addition Date: 2000-04-24
Primary Data Set: Voyager EDRs
Full-Res TIFF: PIA02253.tif (275.5 kB)
Full-Res JPEG: PIA02253.jpg (66.44 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:
This black and white image of Callisto was taken by Voyager 2 about 3:20 A.M PDT Saturday, July 7, from a range of about 1.1 million kilometers (675,000 miles). The picture has been enhanced to reveal detail in the scene. Voyager l's high resolution coverage was of the hemisphere just over the right-hand (eastern) horizon, and the large ring structure discovered by Voyager 1 is just over the eastern limb. This image shows yet another ring structure in the upper part of the picture. Callisto exhibits some of the most ancient terrain seen on any of the satellites. Scientists think Callisto's surface is a mixture of ice and rock dating back to the final stages of planetary accretion (over 4 billion years ago) when the surface was pockmarked by a torrential bombardment of meteorites. Younger craters show as bright spots, probably because they expose fresh ice and frost.
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