Halo orbit

A Halo orbit is a type of orbital path that an object can take around a point in space, specifically around a Lagrangian point in the Earth-Moon system or any other two-body system. Lagrangian points are positions in space where the gravitational forces of two large bodies, like the Earth and the Moon, balance out the centrifugal force felt by a smaller object. There are five such points, denoted as L1, L2, L3, L4, and L5.