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Fig. A.1.


Sunspot of NOAA 12150 observed with the LARS context imager on August 29 2014 at 8:40 UTC in the spectral G-band at 4307 Å. The black arrow is pointing in the direction of the solar disk center. The spectroscopically analyzed 3″-wide region, which is highlighted by a red circle, was centered on the darkest umbra at a heliographic position of 10.4° W and 13.4° S. More information can be seen in Obs. 1 in Table 1.

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