ESA / Rosetta / DLR / MPS for OSIRIS Team MPS / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA
Rosetta sees its shadow
Close view of a 228 by 228 meter region on Comet 67P/Churyumov-Gerasimenko, as seen by the OSIRIS narrow-angle camera during Rosetta's flyby at 12:39 UT on February 14, 2015. The image was taken six kilometers above the comet’s surface, and the image resolution is just 11 centimeters per pixel. Rosetta’s fuzzy shadow, measuring approximately 20 by 50 metres, is seen at the bottom of the image.
Here a set of NavCam images provide context:
ESA / Rosetta / NavCam; ESA / Rosetta / DLR / MPS for OSIRIS Team MPS / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA
Rosetta sees its shadow: context images
The OSIRIS narrow-angle camera image from the 14 February close flyby (bottom left) shown here in context with Navigation Camera images (top left, top right and bottom right).
A visual explanation for the fuzziness of the shadow:
ESA / Rosetta / NavCam / ATG medialab
Rosetta's fuzzy shadow
The difference between how a sharp shadow is generated by a point source (left) and a fuzzy shadow by a diffuse source (right).
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Original image data dated on or about February 14, 2015