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Zooming-in on Enceladus
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Caption NASA originale:"The tortured Southern Polar terrain of Enceladus appears strewn with great boulders of ice in these 2 fantastic views - the Highest Resolution images obtained so far by Cassini of any world.
This comparison view consists of a wide-angle camera image (left) for context, and a HR narrow-angle camera image (right). The 2 images were acquired at an altitude of approx. 208 Km, as Cassini made its closest approach yet to Enceladus. The wide-angle view shows what appears to be a geologically youthful, tectonically fractured terrain.
In the narrow-angle view, some smearing of the image due to spacecraft motion is apparent. Both of these views were acquired as Enceladus raced past Cassini's field of view near the time of closest approach. At the time, the imaging cameras were pointed close to the moon's limb (edge), rather than directly below the spacecraft. This allowed for less 'motion blur' than would have been apparent had the cameras pointed straight down. Thus, the terrain imaged here was actually at a distance of 319 kilometers (198 miles) from Cassini".
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