Value of δe as a function of the distance from the planet in the region of the inner evection and for e = 0. The curve in violet corresponds to the case of an obliquity ϵ_S = 0° and orbital eccentricity e_S = 0° for Saturn. The green dots correspond to the case of ϵ_S = 26.73°, either with e_S = 0° or e_S = 0.054°. The minimum inside the peak of the curves marks the center of the evection resonance.