Examples NS atmosphere spectra for high (l = 0.95) and low (l = 0.001) luminosity and low gravity (log g = 14.0). Theoretical model spectra are shown by the solid curves. The diluted blackbody fits with the first fit procedure are shown by the dashed curves and the one-parameter fits (fourth fit procedure) are shown by the dotted curves. The vertical dotted lines show boundaries of the energy band where the fitting procedure was performed. Top panel is for hydrogen atmosphere and the bottom panel is for the solar H/He mixture with Z = 0.3   Z_⊙.