Left: astrometric (circles) and LO (lines) determinations of the position of the companion of HR 7072 with respect to the primary (cross). The LOs are (a) Africano et al. (1978), (b) Edwards et al. (1980), and (c) our measurement. Right: the same data, converted to P.A. (top) and separation (bottom) and plotted as a function of time. In this plot, the crossed symbols represent estimated LO positions, extrapolated from the lines in the left panel. The open symbols in both plots are discussed in the text. Errors are mostly not available.