Past trajectories of two slightly hyperbolic comets in the simple model of the MOC. Both were initialised at their perihelia, one with q = 8 au, e = 1.00150, ω = π/ 4 (solid line), the other with q = 3 au, e = 1.00055, ω = π/ 4 (dot-dashed line). All the other orbital elements were set to 0. The integration time was 20 Myr. As can be seen these comets are bound (returning) in MD. The Sun resides at [0, 0], as indicated by the symbol.
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