Examples of de Vaucouleurs profiles (dashed lines) and their corresponding sky projected Hernquist profiles (continuous lines) using the scaling relations in Eqs. D.28 and D.29. From top to bottom, the Sérsic parameters are (Σ_eff, R_eff)=(10⁻³, 0.5) (orange), (10⁻³, 6) (blue), (0.1, 0.5) (red), and (0.1, 6) (grey). Because the deviation of the projected Hernquist profile to the Sérsic one occurs mainly at large distances, where the surface brightness quickly drops, the overall fluxes are actually in quite good agreement.