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Comparing Dawn and Hubble Images of Vesta


These two images compare topographic maps of the giant asteroid Vesta as discerned by NASA's Hubble Space Telescope (top) and as seen by NASA's Dawn spacecraft (bottom). Hubble has been in an orbit around Earth, while Dawn orbited Vesta from 2011 to 2012. While the total relief (from the highest point to the lowest point) in the Hubble data is calculated to be only 15 miles (24 km) compared to the higher-resolution Dawn data that indicate a total relief of 26 miles (41 km), the relative topography is remarkably consistent between the two data sets.
 
Credit: NASA/ESA/Cornell and NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
 
 
 

These two maps of the giant asteroid Vesta show patterns of brightness from NASA's Hubble Space Telescope (top) and NASA's Dawn spacecraft (bottom). Hubble's view is from an orbit around Earth. Dawn went into orbit around Vesta from 2011 to 2012. Scientists have been able to correlate several bright and dark features originally identified in Hubble images with features imaged at high resolution by the Dawn spacecraft's framing camera.

Credit: NASA/ESA/PSI/MIT and NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

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