Density distributions of the parameters of the 1 000 000 accepted fits to the WASP-85AB binary orbit, based on the model described in Sect. 5. The consecutive contours encompass 68.3%, 95.5%, 99.7% and 99.9% of the samples. The symbols used are defined as: a – semi-major axis; e – eccentricity; i – inclination; ω – longitude of the ascending node; Ω – argument of periapsis; M_Tot – total mass of the system. Due to a lack of a strong radial velocity constraint on ω and Ω, we have limited these two values to the range 0 ≤ x < 180.