File:V404Cyg XRT halo fullsize.jpg

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English: V404 Cygni is a low mass black hole binary system that periodically erupts as a Nova. The Swift x-ray satellite detected "light" echoes of x-rays from the latest eruption reflecting off rings of dust around the system.
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Source http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11948
Author Andrew Beardmore (Univ. of Leicester) and NASA/Swift

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current19:49, 5 July 2016Thumbnail for version as of 19:49, 5 July 20163,258 × 3,258 (3.57 MB)Lithopsian (talk | contribs)User created page with UploadWizard

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