CELESTIAL MECHANICS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site apoapsis The point in the orbit of a body, such as a planet, moon, comet, or spacecraft which is furthest from the primary. Special names, including apastron, aphelion, and apogee, are given to this orbital point for familiar systems. Related category    • CELESTIAL MECHANICS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP