Illustration of the surroundings of π¹ Gru including the close companion, the disc, the G0V companion, and the spiral arc. The coloured areas represent the field of view or detection range of the used instrument: olive represents the VLTI/AMBER range, horizontal grey lines the Hipparcos Δμ constraint, light blue the SMA CO(2-1) observations, and dark orange the partly overlapping Herschel/PACS field of view.