Combination of the GRAVITY epochs of HD 206505 b after scaling to bring them into mutual agreement. Top panel : GRAVITY K -band flux spectra for each individual epoch. The 3σ flux uncertainties are shown as shaded regions. The legend reveals that for this object both observations were done in dual-field on-axis mode, with the companion located at an angular separation of 425 mas from the host star. Bottom panel: scaled GRAVITY flux spectra for each individual epoch and the resulting combined spectrum (black line). The legend reveals the scale factors applied to each epoch (values in brackets).