Representation in three-dimensional space of the unstable spherical orbits B (left panel) and D (right panel) from Table 2. The outer event horizon is shown as a colored sphere of radius ﹩{r}_{+}=M\pm \sqrt{{M}^{2}-{a}^{2}-{Q}^{2}-{P}^{2}}﹩. The equatorial red circle indicates the constant radius r₀ characterizing each orbit. The starting point of the orbits is marked by a red dot.