HD 124448
HD 124448, also called Popper's Star and V821 Centauri, is an extreme helium star in the Centaurus constellation. Discovered by astronomer Daniel Popper, this star has a spectral classification of B2-B3.
Peter M. Corben et al. announced that the star is a variable star, in 1972. It was given its variable star designation, V821 Centauri, in 1981.