  We present STELIB, a new spectroscopic stellar library, available at
http://webast.ast.obs-mip.fr/stelib . STELIB consists of an homogeneous library
of 249 stellar spectra in the visible range (3200 to 9500A), with an
intermediate spectral resolution (~3A) and sampling (1A). This library includes
stars of various spectral types and luminosity classes, spanning a relatively
wide range in metallicity. The spectral resolution, wavelength and spectral
type coverage of this library represents a substantial improvement over
previous libraries used in population synthesis models. The overall absolute
photometric uncertainty is 3%.
