Rajamohan, R
(Centre of Advanced Study in Astronomy, Osmania University, 1973)
From a measurement of the equivalent width of H alpha in the star gamma 1 Velorum, it is found that My (gamma1 Vel)=-3.1. Assummg gamma 1 and 2 Velorum are at the same distance, a distance modulus of 7.4 magnitudes for ...