Calculations of stellar evolution up to the early white dwarf stage were carried out for stars with mass on main sequence $M_0=0.82M_\odot$, $0.85M_\odot$, $0.9M_\odot$ and initial abundances helium heavier elements $Y=0.25$ $Z=10^{-3}$, respectively. For each value $M_0$ AGB post--AGB evolutionary phases computed three values loss parameter in Bl\"ocker formula: $\eta_B=0.02$, 0.05 0.1. The va...