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celes'tial guid'ance




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. Cf. celestial navigation, command guidance, inertial guidance.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

celestial equatorcelestial hierarchy
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