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PHOTO INDEX OF PRIMARY TARGETS ASTEROIDS COMETS EARTH JUPITER KUIPER BELT MARS MERCURY METEORITES NEPTUNE OORT CLOUD PLUTO SATURN SOLAR SYSTEM SPACE SUN URANUS VENUS ORDER PRINTS OTHER PHOTO INDEXES ALL TARGETS PHOTO CATEGORIES SCIENCEVIEWS AMPHIBIANS BIRDS BUGS FINE ART FOSSILS INDIAN ISLANDS MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES ROCKS & MINERALS SCIENCEVIEWS PRINTS

High-Resolution Image of Callisto Target Name:   Callisto Spacecraft:   Voyager 2 Produced by:   Calvin J. Hamilton Date Released:  29 September 2004 (Publisher Permission Request) Related Document Callisto Download Options Name Type Width x Height Size callisto4.jpg JPEG 573 x 640 56K callisto4.jpg JPEG 1460 x 1630 414K callisto4.tif TIFF 1460 x 1630 1M At the lower left is the impact structure, Asgard surrounded by concentric rings up to 1,700 kilometers (about 1,050 miles) in diameter. A second ringed structure with a diameter of about 500 kilometers (310 miles) is just below Asgard, partially obscured by the more recent, bright-rayed crater, Burr. The icy materials excavated by the younger craters contrast sharply with the darker and redder coatings on older surfaces of Callisto. These bright areas are believed to contain more clean ice than the rest of Callisto's generally 'dirty-ice' surface.

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