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astrocompass
astrocompass (ˌæstrəʊˈkʌmpəs) n1. (Navigation) a navigational instrument for giving directional bearings from the centre of the earth to a particular star. It is carried in long-range aircraft, ships, spacecraft, etc2. (Tools) a navigational instrument for giving directional bearings from the centre of the earth to a particular star. It is carried in long-range aircraft, ships, spacecraft, etcastrocompass
astrocompass[′as·trō‚käm·pəs] (navigation) A direction-determining instrument into which can be set the coordinates of any celestial body and the latitude of the observer and which will then give an indication of azimuth, true north, and heading. |