Theta Tucanae
... that the primary star of the binary system Theta Tucanae has absorbed much of the mass of its once-larger companion?
... that the primary star of the <a href="./Binary_star" id="mwBDY" rel="mw:WikiLink" title="Binary star">binary</a> system <b id="mwBDc"><a href="./Theta_Tucanae" id="mwBDg" rel="mw:WikiLink" title="Theta Tucanae">Theta Tucanae</a></b> has absorbed much of the mass of its once-larger companion?