Top: Spectra of the Fe II emission obtained for several simulations in the Z = 20 Z_⊙ and V_turb = 100 km s⁻¹ grid. Grey-shaded regions indicate spectral ranges used to compute R_UV and R_opt. Each template is normalized by the f parameter to match the integrated flux of the RM 102 spectrum in the 2000–5500 Å range. The figure demonstrates that no simulation accurately reproduces the observed Fe II emission across all grey-marked regions. Synthetic spectra are broadened using a Gaussian kernel with FWHM = 2500 km s⁻¹. Bottom: Same as the top figure, but for 20% contribution from the bright side and 80% from the dark side.