Lêer:Dione surface.jpg

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Opsomming

Beskrywing
Afrikaans: Skeure op die oppervlak van Dione, een van Saturnus se natuurlike satelliete.
Português: Superfície de Dione.
English: Dione's surface.

The Cassini spacecraft continues to prove that the closer the view of the myriad worlds constituting the Saturn system, the more interesting and varied the views become. This close-up view of icy Dione reveals a wonderful variety of surface features that are simultaneously familiar and unlike any other place in the solar system.

The terrain in this image is located within a 60-kilometer-wide (37-mile) impact crater [Amastrus] along the feature called Padua Chasmata. The western rim of the encompassing crater runs from the middle left to the upper right. The crater's central peak can be seen at the lower right.

Multiple generations of fractures are visible here. Numerous fine, roughly parallel linear grooves run across the terrain from top to bottom and are interrupted by the larger, irregular bright fractures. In several places, fractures postdate some deposits in the bottoms of craters that are not badly degraded by time. Such a fracture, for example, runs from the center toward the upper right.

Most of the craters seen here have bright walls and dark deposits of material on their floors. As on other Saturnian moons, rockslides on Dione may reveal cleaner ice, while the darker materials accumulate in areas of lower topography and lower slope (e.g. crater floors and the bases of scarps).

This view is centered on terrain near 11 degrees south latitude, 238 degrees west longitude.

This clear-filter image was taken using the Cassini spacecraft narrow-angle camera on Oct. 11, 2005, during Cassini's close targeted flyby of Dione. The image was acquired from a distance of 4,486 kilometers (2,787 miles) from Dione and at a Sun-Dione-spacecraft, or phase, angle of 10 degrees. The image scale is 23 meters (75 feet) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov. The Cassini imaging team homepage is at http://ciclops.org.
Datum
Bron The Nasa Planetary Photojournal - PIA07748: In the Groove: http://photojournal.jpl.nasa.gov/catalog/PIA07748
Outeur NASA / JPL / Space Science Institute
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This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA07748.

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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huidig23:10, 19 Oktober 2005Duimnaelskets vir weergawe vanaf 23:10, 19 Oktober 20051 020 × 1 020 (155 KG)PedroPVZ{{en}} Dione's surface. {{pt}} Superfície de Dione. Category:Dione (moon)

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