Reconstruction of the time when the Sun left the parent cluster for a specific set of parameters. The dark blue curve shows the Öpik-Oort cloud’s mass-evolution, assuming it was born in isolation (fast-rise-exponential-decay function with a maximum mass of μ_ÖO = 0.027, t_rise = 10 Myr, and t_decay = 7500 Myr, see Eq:FRED). The blue-shaded area gives the uncertainty of the Öpik-Oort cloud for t_decay = 5000 Myr to 10 000 Myr (see also fig:currentOCmass in the main paper). The dashed line indicates 0.38 M_⊕ below the endpoint of the solid blue curve. The intersections between the dashed line and the solid blue curve (to the left) indicate the moment the Sun left the parent cluster at t_esc = 12 ± 4 Myr. The horizontal dotted lines are identical to the dashed line, but present the extremes for the blue-shaded region; they define the uncertainty in t_esc, indicated in red.