First four stars from Table 3: comparison of their nominal minimal distances from the Sun and the spread of VSs at their closest approach. Black dots in the centre of each VSs cloud mark the nominal star position at the closest Sun-star approach; see text on how this composite figure was obtained. Label meanings: A: P0509, B: P0230 (HD 7977), C: P0506, D: P0508; see Table 3 for details on each star. The blue circle marks the usually adopted outer limit of the Oort cloud and the cross in the middle marks the Sun’s position.