A4 analysis: the plot compares observed spectra (heavy lines) to calculated spectra (light lines) for Star 1 and three standard stars. The two panels display two separate wavelength regions, as indicated in Å at the bottom of each panel. The stars are displaced vertically for clarity. Each y-axis tick denotes 10% of the full height of the normalized spectrum. The star name appears in bold above the continuum of each plot, followed by the model stellar parameters adopted for the calculation: effective temperature T_eff, surface gravity log g, logarithmic iron-to-hydrogen ratio [Fe/H] with respect to that of the Sun, and microturbulence v_mic. Above the upper boundary of each panel appear identifications of the strongest lines in the calculation for μ Leo: the three digits after the decimal point of the wavelength in Å of the line is followed by a colon for a “missing” line, and then the species identification.