STAR COUNTS IN NGC-6397

I-band CCD images of a large area of the nearby globular cluster NGC 6 397 have been used to construct a surface density profile and two lumi nosity and mass functions. The surface density profile extends out to 14' from the cluster center and shows no sign of a tidal cutoff. The i nner profile is a power law with slope -0.8 steepening to -1.7 outside of 1'. The mass functions are for fields at 4' and 11' from the clust er center and confirm the upturn in the mass function for stars less m assive than about 0.4M.. There appears to be an excess of low-mass sta rs over higher-mass stars in the outer field with respect to the inner , in qualitative agreement with expectations for mass segregation.