Left: equilibrium figure in the 3BP. Dashed-empty ellipsoids correspond to the static tidal deformations generated by each of the perturbing masses, while the resulting equilibrium figure of m_i (Eq. (3)) is shown by a filled grey ellipsoid. The unit vector indicates the orientation of the equivalent equilibrium bulge. Right: real figure in the 3BP. The dark grey filled ellipsoid represents the modelled real figure induced on m_i when we take into account the internal viscosity; we note that it is displaced by an angle δ_i, with respectto the equilibrium figure and also has different flattenings.