Comparison between a circular orbit, the real orbit, our selected model and a simulation calculated with an independent code that accounts for the time- and space-dependent dust emission. All four simulations use identical parameters except for the starting velocity of the comet, which was adjusted to produce the respective orbits. We use a cosine distribution with the dust parameters a = 1 × 10⁻⁵ m, v = 10 m s⁻¹. The last simulation was generated using a Monte Carlo dust dynamics code that emits particles at different times along the comet’s trajectory in which the dust production rate is proportional to the heliocentric distance as $r_h^{-2}$.