Displacement and rotation of the runaway sunspot are shown in the top and bottom panels, respectively, after separation from its host area around 16:00 UT on July 2. In the bottom panel the continuum images at two different instances along the steep part of the plot are shown. The thin white lines mark the umbra-penumbra boundary retrieved from fitting an ellipse to the observed contour and the white pluses represent the centre positions of the ellipses.
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