Overview of the observed area at 08:22:23 UT. The field of view was centered at solar (X,Y) = (−202,206) arcsec with viewing angle μ = 0.95. It is clockwise rotated with respect to (X,Y) over 62.6°. The arrow in the second panel points to disk center. Upper row: SST images: Fe I 6303 Å wide band, Fe I 6303 Å magnetogram, blue wing of Ca II 8542 Å at Δλ = −0.7 Å from line center, Hα line center. Lower row: corresponding images from IRIS and SDO/AIA: 1400 Å slitjaw, He II 304, Å  Fe IX 171 Å, Fe XII 193 Å. The pixel sizes are 0.057 arcsec for the SST, 0.167 arcsec for IRIS, 0.6 arcsec for AIA. The white frame defines the subfield used in Fig. 2. In the fourth panel it contains the long black arching fibril discussed here.