The Absolute Magnitudes of Wolf-Rayet Stars HD 151932 and HD 152270

Abstract

The absolute visual magnitudes of two Wolf-Rayet stars HD 151932 (WN 7) and HD 152270 (WC 7+08) have been determined from their energy distributions and monochromatic magnitudes least contaminated by emission lines taking into account their membriship with the open cluster NGC 6231. It appears that the WN 7 (Mv = -6.4) is brighter by about a magnitude in comparison with WC 7 (Mv = -5.0)