The positions and proper motions in the system of the FK4 of the star suggested by 0. J. Eggen as the optical component of the X-ray source Cen X-2, and 126 other stars are given. WX Centauri does not seem to be an obvious member of a comoving group of stars. Its position in the proper motion plot does, however, suggest that it is a Population I object. Two relatively faint red stars are identified as possible members of the Scorpio-Centaurus Association.