Fig. 2

VLT/NACO measurements with uncertainties in the offset positions of HD 196885 B relative to A, obtained on August 1, 2005, August 28, 2006, August 27, 2007, June 26, 2008 and August 27, 2009. The solid line gives the expected variation in the offset positions of B relative to A, if B is a background stationary object. This variation takes the initial offset position of B relative to A into account on August 1, 2005 and the proper and parallactic motions of HD 196885 A. After April 2006, the predicted offset positions go beyond the (Δα,Δδ) astrometric range considered for this figure.
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