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 solar apex The point on the celestial sphere, in the constellation Hercules, toward which the Sun is moving with respect to the local standard of rest, at a rate of about 19.4 km/s (about 4.09 AU/year). As the Sun slowly orbits the galactic center, nearby stars (as seen from Earth) appear to move away from the solar apex because of the Sun's relative velocity. The point directly opposite the solar apex is called the solar antapex and lies in the constellation Columba. 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