Example SED fit for HIP 4618. The best-fitting binary model is shown with black dots, with the integrated model photometry in black crosses. The observed photometry is shown in red, with the horizontal error bar the width of the pass band. The parameters for this fit are for the giant T_eff = 4750 (100) K, log g = 2.91, radius = 6.6 (0.8) R_⊙ (see Table 2), and for the companion T_eff = 5500 K, log g = 4.0, radius = 1.2 R_⊙.