Effects of rotation on the colours and line indices of stars. II - The effect on UVBY and H-beta indices The intrinsic uvby and H-beta indices of member stars of Alpha-Persei,Pleiades, and Scorpio-Centaurus association have been analyzed in detailfor rotation effects. These stars range in spectral type from B0 to F0and the observed effects of rotation are found to be in agreement withphotometric effects calculated by Collins and Sonneborn (1977) forrigidly rotating B0 to F0 stars.
