Observational and synthetic K giant spectra (F_λ, normalized at 5000 Å). In the top panel the fluxes of HD 114092 (solid black curve) and HD 102328 (dashed black curve) from the CFL library (Valdes et al. 2004) are plotted along with the synthetic spectra of H02 (green curve) and this work (blue curve). In the bottom panel the spectrum of HD 102328 is divided into the other three using the same color scheme.