Rhomboidal shadows reconstructed from the synthetic TLCs generated for the spherical models of some transiting objects. Panel a: Kepler-45b at KIC 5794240, panel b: KOI 883.01 at KIC 7380537, panel c: Kepler-5b at KIC 8191672, and panel d: Kepler-5b at KIC 8191672. The solid curves are the polynomial approximations according to Eq. (10). We note that the obtained shadows are elongated along X axis because the parameter K, related to limb-darkening in Eq. (5), is taken as equal to the unit.