Transit light curve fits for two visits of HD 209458b (dots in the lower panels of each plot), integrated over the wavelength range between 2900 Å and 5700 Å with limb darkening coefficients derived from the 3D model (green lines) and the 1D MARCS model (red lines); see Table 4 for the fit parameters. The residuals of the 3D fits and the 1D fits are shown in the upper panels and center panels in each plot, the blue lines show the deviation between the 3D and 1D model light curves.