: This is about the orbital parameter. For the quarterly publication, see . Perigee is the point at which an object in orbit around the Earth – either the Moon or a spacecraft, satellite, or other body – makes its closest approach to the Earth. Often the term is used in a broader sense to define the point in an orbit where the orbiting body is closest to the body it orbits. The Greek prefix "peri" means close or near. The suffix "gee", derived from Gaea, means Earth. Perigee is part… (More on Perigee)