  We analyze twenty five nearby metal-rich G and late-F dwarfs in order to
verify whether the spectroscopic equilibrium (LTE) of iron lines satisfy the
observational constraints imposed by the Infrared Flux Method (angular
diameters) and Hipparcos parallaxes. The atmospheric parameters derived from
iron lines (assuming LTE and employing 1D Kurucz model atmospheres) do not
satisfy simultaneously both observational constraints, probably because
classical modeling fails to reproduce the detailed line formation of FeI lines.
