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Fig. 1

image

Positions of the orbital poles on the sky, with the grid representing Galactic coordinates. The Galactic centre is at the centre of the grid. The systems are labelled by their numbers of Table 3. The circled labels identify the systems up to N = 18 whose distribution is the most significantly different from isotropic according to Fig. 3. The dashed line displays the celestial equator. For comparison, the ecliptic pole is located at l = 96.4°,b = 30°.

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