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Fig. 5
Hα images of NOAA 8471 acquired at BBSO with a pixel size of 1.158 arcsec/pixel. a) 27-02-1999 at 18:59:24 UT. b) 28-02-1999 at 17:51:18 UT (after the flare). The field of view is about 148 × 64 Mm2.
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