A spherical chaotic system

This paper proposes a spherical chaotic system by appropriately combining a celestial conservative system with a dissipative chaotic system. The spherical system spins around its axis chaotically while revolving along an elliptical orbit. The spherical system takes on rich dynamics: having spherical four-wing chaotic attractors, spherical ring-like chaotic attractors, spherical periodic orbits and spherical sink orbits, as the dissipative sub-system is perturbed through parameter variations.