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Fig. A.2.

image

Sunspot of NOAA 12149 observed with the LARS context imager on August 25 2014 at 10:36 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 24.2° E and 10.3° N. More information can be seen in Obs. 5 in Table 1.

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