Phase-folded transit light curves of Kepler-423, best fitting model, and residuals. LC data are shown on the left panel, SC on the right panel, both binned at ~1.9 min. The shaded area corresponds to the 3σ errors in the binned fluxes. The dashed lines mark the T₁₄ limits, and the dotted lines the T₂₃ limits. The blurring of the transit shape – due to the long integration time – is obvious in the LC plot (left panel).