Image:Mars.jpg

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• Description : Mosaic of the Schiaparelli hemisphere of Mars projected into point perspective, a view similar to that which one would see from a spacecraft. The images were acquired in 1980 during early northern summer on Mars. The center of this image is near the impact crater Schiaparelli (latitude -3, longitude 343) The limits of this mosaic are approximately latitude -60 to 60 and longitude 260 to 30. The color variations have been enhanced by a factor of two, and the large-scale brightness normalized by large-scale filtering. The large circular area is known as Arabia. The boundary between the ancient, heavily-cratered southern highlands and the younger northern plains occurs far to the north (latitude 40) on this side of the planet, just north of Arabia. The dark streaks with bright margins emanating from craters in the Oxia Palus region (to the left of Arabia) are caused by erosion an/ or deposition by the wind. The dark area on the far right, called Syrtis Major Planum, is a low-relief volcanic shield of probable basaltic composition. Bright white areas to the south, including the Hellas impact basin at lower, right are covered by carbon dioxide frost.
• Date : 1980
• Source : USGS Astrogeology: Martian Hemesphere Images
• Auteur : USGS

This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright. Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See 206.02(b) of Compendium II: Copyright Office Practices).</center>

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