Dynamical map of the WASP-12 system in the (a_c,e_c)–plane, computed in terms of the MEGNO fast indicator. These two orbital parameters are varied across the map, while other orbital elements and masses are kept at their nominal values from Table 5. The star symbol, located at a_c = 0.050681 AU, indicates the nominal system. Colours encode the dynamical stability of the system: yellow is for strongly unstable configurations, and blue is for stable, quasi-periodic systems. A few relevant MMRs are labelled. The raw resolution of this map is 1440 × 900 datapoints. Each initial condition at the map has been integrated for 10⁵ outer orbits.