This artist’s impression shows a stellar flare on star HD 189733A, the parent star of exoplanet HD 189733b.
In this video, the surface of the star, which is around 80% the mass of the Sun, is animated based on observations of the Sun from the Solar Dynamics Observatory.
Credit:
NASA, ESA, L. Calçada, Solar Dynamics Observatory
More information and download-options:
http://www.spacetelescope.org/videos/heic1209f/
