Dynamical evolution of the nominal orbit of C/2002 T7 LINEAR (d6 solution) under the simultaneous Galactic and stellar perturbations. The left vertical axis describes a heliocentric distance plot (thin blue lines) and a perihelion distance (green lines that turn black if e ≥ 1.0). The right vertical axis describes the angular elements (with respect to the Galactic disc plane): an inclination (fuchsia line) and an argument of perihelion (red line). Thin lines describe the dynamics when all stellar perturbations are omitted.