Fig. 1
AIA negative images of active region NOAA 11193 when it first appeared on the visible solar disk near the central meridian on Apr. 19, 2011 (left) and during the second rotation on May 17, 2011 (right). The intensities are DN/s, and the images of the two dates are shown on the same intensity scale and field of view. Coordinates are arcseconds from Sun centre.
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