Swift's X-Ray Telescope Exposure of GRB 130427A (IMAGE)
Caption
Swift's X-Ray Telescope took this 26.5-second exposure of GRB 130427A at 3:50 a.m. EDT on April 27, just moments after Swift and Fermi triggered on the outburst. The image is 6.5 arcminutes across.
Credit
NASA/Swift/Stefan Immler
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