Statistical investigation of chemically peculiar stars. IV. Luminosity of different type stars.

The mean values of luminosity for the stars of different peculiarity types are estimated on the basis of the selected data for chemically peculiar stars with the trigonometric parallax values of more than 0arcsec.01 and the stars belonging to the star clusters or associations. They are confirmed as main-sequence stars. A relation of the absolute stellar magnitude M_V to the color (B-V)₀ for the Ap stars is found.