Relative radius deviation σ_Rp∕R_p vs. positional angle γ for the ingress (panel a) and egress (panel b) phases of confirmed planets. The range of effective radius variability of a KOI was calculated using Eq. (8) and the timing standard deviations from Figs. 7c and d. The linesshow the corresponding regressions. Using these regressions, a generalized shape of the VOZ (gray color) around a KOI (black disk) is visualized in panel c.