Swift X-ray Telescope View of Exoplanet HD 189733b's Host Star
Strong X-ray emission makes the host star of HD 189733b stand out in this view from Swift X-Ray Telescope. The image combines data from Sept. 13 and 14, 2011, and is 6 arcminutes across.
Credit: NASA and S. Immler (Swift Team, Goddard Space Flight Center)
