Past and future dynamical evolution of C/2014 UN₂₇₁ nominal orbit (“b8” solution). changes in a perihelion distance (green), an inclination (fuchsia), and an argument of perihelion (red) are shown. the thick lines depict the result of the full dynamical model while thin lines show the evolution of elements in the absence of any stellar perturbations, i.e., only the galactic perturbations are taken into account. angular elements are expressed in a galactic frame. we also show names of stars that have a significant effect on this dynamical evolution.