One of the allowed solutions for the orbit of V746 Cas tertiary, shown in photocentric coordinates x_p, y_p (blue curve) and compared to speckle-interferometry and astrometric measurements (black crosses with gray uncertainty ellipses). The large cross denotes the position at the epoch T₀ = 2 454 384.65 of osculation. There are clearly several uncertain measurements (cf. red residua) that do not contribute much to . Note that normalized spectra (RVs) and spectral-energy distribution were fitted at the same time and there is no easy way to improve the solution further without increasing or .