Electron densities derived from Metis pB measurements obtained right after the total brightness measurements described in this work. In analogy with Fig. 2, this composite image shows also EUI/FSI174 images and the position of the solar limb (blue line) as seen from Earth. Black areas in the 8 October 2022 Metis images mark regions where the pB is saturated. Contours mark the values log₁₀N_e= 5.0, 5.5, 6.0, and 6.5 (densities in cm⁻³).