Top-left: astrometric position of HD 196885 B relative to A combining SOAR, NaCo, SPHERE and GRAVITY observations from August 2005 to August, 2021. Specific zoomed plots on the NaCo astrometric measurements obtained between August, 2005 and August, 2009 (middle-center), the SPHERE and SOAR ones from June, 2015 to May, 2018 (top-right), and the GRAVITY ones from May, 2019 to August, 2021 (middle-right) are shown. Bottom-left: radial velocity measurements of HD 196885 A from CORAVEL, ELODIE, CORALIE, Lick and SOPHIE covering 40 yr of monitoring. Top-right: zoom on the radial velocity signal induced by HD 196885 Ab. The results of the orbital fitting exploration are reported with the thick blue curves.