Eccentricity of the moons as a function of their planet’s pre-explosion semi-major axis. The models assume two planetary masses. Colors represent pre-explosion planet–moon distances. Only models with $f_{\text{m}}^{(0)}=0^{\circ }$ are shown as the effect of the pre-explosion true anomaly of the moons is negligible. Grey areas mark eccentricity values that arise from perturbations inherent to the hierarchical three-body problem.