Investigation of atmosphere nonstationarity in the supergiant HD225094: Profile variations of Hα and Hβ lines in spectra of the star HD225094

Some information on the supergiant star HD225094 and unusual features observed in the spectra obtained in 2013 at the Shamakhy Astrophysical Observatory are presented. It is found that profiles of the H α line of the P Cyg type have structures that vary over a short period of time. A unique observational fact of the H α line disappearance in the HD225094 spectrum is revealed. In addition, it is found that values of radial velocities and spectral parameters of H α and H β lines in the spectrum of this star vary with time. It is assumed that the resulting observational facts of the HD225094 atmosphere nonstationarity are partly associated with the stellar wind nonsphericity.