Using observational data on solar brightness oscillations from the space satellites VIRGO (SOHO) and DIFOS-F (KORONAS-F) we obtained stratifications of perturbed hydrogen concentrations, that give rise to isothermal oscillations in solar photosphere layers. We revealed proper knots and antinodes of oscillations in the solar photosphere layers. The reconstruction of isothermal oscillations of long periods from the DIFOS observalions showed the shift of knots and anti-nodes Δn/n sideward lower photosphere layers when the frequency of oscillations decreases.