American Practical NavigatorU.S. Government Printing Office, 1995 - Nautical astronomy |
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Common terms and phrases
accuracy adjustment altitude amplitude AMVER antenna approximate azimuth bearing buoys calculated celestial body celestial equator celestial horizon celestial meridian celestial navigation celestial sphere chart compass computed coordinates correctors course curve datum declination degaussing determine deviation diagram difference direction Dist distance earth ECDIS effect electronic Enter error Figure Flinders bar frequency height horizon hour angle hour circle indicate interpolation ionosphere latitude light line of position located longitude Loran low water magnetic field magnetic heading magnitude mark measured method minutes moon Nautical Almanac nautical miles NAVAID navigation Notice to Mariners observed operating parallel phase piloting plane plane sailing plot polar pole radar radio range receiver rhumb line rotation sailing satellite sextant ship ship's Sight Reduction Tables signal speed stars station surface tabulated tidal current tide tion track transmitted triangle vertical vessel wave zenith