The Sun's transition region observed by Soho

The Sun observed by Soho's SUMER instrument on 12/13 May 1996 in the emission line of S VI at 933 Angstrom, formed in the transition region at about 200,000 K. The picture was assembled from 9256 raster images with an exposure time of 3 s each, collected in eight alternating horizontal scans across the Sun. [Image Date: 03-12-96] [96.11.003-003]