Figure 1. The SOHO/MDI full-disk image in the white light (a) and magnetogram (b), the H-alpha heliogram of the Kanzelhohe Solar Observatory (c), and the SOHO/EIT heliograms in channels of 304 Å (d), 195 Å (e), 284 Å (f) illustrating the situation before the event of the October 28, 2003 event.
