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Relative movement of both stars (mas), according to the new orbital parameters. The AGB star is represented by the gray circle (with a diameter of 15 mas), the position of the WD in Schmid et al. (2017, epoch 2014.9) is indicated by the yellow asterisk, and the position of the WD derived from the new orbital parameters for the epoch of our observations (2017.9) is indicated by the blue asterisk. The uncertainties are represented by the blue contour. Small black dots show the position of the WD at orbital phases of 0.1–1.0 by 0.1 (the corresponding dates are also indicated). Our high-resolution continuum map is again shown (red contours) with the A, B, and C components; see Appendix A.
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