The Bruce Murray Space Image Library
Filed under asteroid 4 Vesta, pretty pictures, asteroids, Dawn
Dawn's framing camera can capture images of Vesta in infrared wavelengths where its rocky materials display more pronounced color differences than can be seen in visible wavelengths. This image is exemplary of the way such infrared images can be used to separate surface materials into areas of similar and different composition. It will take some time before the camera team is confident enough in their instrument calibration that they will be able to turn this colorful data into information about the distribution of specific minerals or different grain sizes in the regolith across the surface.
NASA / JPL-Caltech / UCLA / MPS / DLR / IDA
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