Fig. A.3.
Sunspot of NOAA 12109 observed on July 12 2014 at 15:02 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 (red circle) was centered at a heliographic position of 55.3° W and 8.1° S. More information is given in Obs. 13 in Table 1.
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