Fig. C.1.

Projection on R − Z plane and on X − Y plane of orbits of stars in the LP First stars sample. The red line corresponds to the mean orbit of each star, the grey lines to the 100 realisations of this orbit, once errors on the observables (parallaxes, proper motions, line-of-sight velocities) are taken into account. The Gaia DR2 ID of each star is reported on the top of each panel.
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