Recent portion of Galactic orbit of NGC 6791 – orbit projections into the Galactic and meridional plane are plotted in the left and right column, respectively. Orbit in axisymmetric potential is plotted with the blue line. The red line shows the combined model (bar and spiral arms). The initial conditions (see Table 4) are given by mean observational input data (Table 3), the black dot marks the initial position. Integration was backward for time of 1 Gyr.