Fig. E.1.
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Motion of nearby stars in the plane of the sky, as measured by Gaia. Each arrow represent the proper motion (direction and modulus) of a star at a certain position. Only stars within a 3′ radius and a p★ ± 2σp★ parallax range are shown. The differential parallax between V4641 Sgr and individual stars is color-coded. The black arrow corresponds to the direction of the average proper motion.
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