CHEMICALLY PECULIAR STARS IN THE FIELD OF NGC-2244

Low-resolution long-slit spectra of reference stars, including MKK sta ndard stars and well-known chemically peculiar stars, are used to deve lop a spectroscopic method for the detection of the 5200 Angstrom flux depression in CP stars. This new method is shown to be as sensitive a detection tool as the photometrical techniques, and provides a higher resolution view of the excess blocking. Application to stars in the f ield of NGC 2244 allows us to estimate and eliminate reddening effects . CP stars detected in this field include two members (#334 and #276) of the very young stellar group NGC 2244 (age approximate to 3 x 10(6) yr) and two or three foreground stars (#381, #625 and maybe #629). #3 34 and #625 are strongly peculiar.