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> Pwyll crater on Europa

Pwyll crater on Europa

author: Nasa/JPL/Novapix

reference: a-jup05-00310

Image Size 300 DPI: 13 * 16 cm

This enhanced color image of the region surrounding the young impact crater Pwyll on Jupiter's moon Europa was produced by combining low resolution color data with a higher resolution mosaic of images obtained on December 19, 1996 by the Solid State Imaging system aboard NASA's Galileo spacecraft. This region is on the trailing hemisphere of the satellite, centered at 11 degrees South and 276 degrees West, and is about 1240 kilometers across. North is toward the top of the image, and the sun illuminates the surface from the east. The 26 kilometer diameter impact crater Pwyll, just below the center of the image, is thought to be
one of the youngest features on the surface of Europa. The diameter of the central dark spot, ejecta blasted from beneath Europa's surface, is approximately 40 kilometers, and bright white rays extend for over a thousand kilometers in all directions from the impact site. These rays cross over many different terrain types, indicating that they are younger than anything they cross. Their bright white color may indicate that they are composed of fresh, fine water ice particles, as opposed to the blue and brown tints of older materials elsewhere in the image.

Keywords for this photo:

1996 - ASTRONOMY - CRATER - EUROPA - FALSE COLOR - GALILEAN SATELLITE - GALILEO - ICE - IMPACT CRATER - JOVIAN MOON - PWYLL - SATELLITE -