celestial guidance
noun
a guidance system for an aeronautical or space vehicle by which an automatic device in the vehicle takes periodic fixes on celestial bodies to determine the vehicle's position and to guide it along a particular flight path.
Also called
astro-inertial guidance.
Words nearby celestial guidance
British Dictionary definitions for celestial guidance
celestial guidance
noun
the guidance of a spacecraft or missile by reference to the position of one or more celestial bodies