Composite of FSI 17.4 nm images obtained on March 21, 2021, on disk (at 02:46:43 UT, below 1.85 R_⊙) and in coronagraphic mode (at 00:45:45 UT, between 1.85 and 4.45 R_⊙), and Metis polarized-brightness (pB, left) and UV Lyman-α (right) images acquired at 03:00 UT, above 4.45 R_⊙. The dotted white circles mark the inner (4.05 R_⊙) and outer (4.45 R_⊙) limits of the overlapping portion of FSI and the Metis fields of view. The streamer regions considered in the analysis are shown by the two angular sectors delimited by the dotted lines.