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We present an analysis of Hipparcos astrometric measurements of υ And, a nearby main-sequence star around which three planet candidates have recently been discovered by means of radial-velocity measurements. The stellar orbit associated with the outermost candidate has a period of 1269 ± 9 days and a minimum semi-major axis of 0.6 milli-arc-sec (mas). Using the Hipparcos data together with the spectroscopic elements we found a semi-major axis of 1.4 ± 0.6 mas. This implies a mass of 10.

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