Conceptual fractal illustration of orbital motion. An orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system, such as the Solar System. Orbits of planets are typically elliptical. But unlike the ellipse followed by a pendulum or an object attached to a spring, the central sun is at a focal point of the ellipse and not at its centre. Isaac Newton demonstrated that Kepler's laws were derivable from his theory of gravitation and that, in general, the orbits of bodies subject to gravity were conic sections, if the force of gravity propagated instantaneously. Quantum orbital motion involves the quantum mechanical motion of rigid particles (such as electrons) about some other mass, or about themselves. Fractals are infinitely complex mathematical patterns that are self-similar across different scales