Planck image (at 857 GHz) of a region in the Perseus constellation
Date: 26 April 2010
Copyright: ESA and the HFI Consortium
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This Planck image of a region in the Perseus constellation, taken at 857 GHz, demonstrates the wealth of information that can be gleaned with Planck. At visible wavelengths this region of the sky is dark, reflecting the low level of star formation that is taking place. The Planck images reveal the large amount of interstellar material that is present.
Last Update: 1 September 2019