Navigation and Nautical Astronomy, Volumes 1-5 |
Contents
PREFACES v | 1 |
Instruments for Determining Direction and Measuring Distance | 11 |
The Magnetic Compass | 35 |
Copyright | |
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Common terms and phrases
azimuth celestial body celestial horizon celestial sphere chro chronometer có có có column compass card compass error computed Corr correction course and speed curve D.R. position dead reckoning declination determined deviation difference direction distance earth east eastward ecliptic equal equator equinoctial Flinders bar given Greenwich civil height of eye horizon glass hour angle hour circle instant knots latitude light limb line of position longitude magnetic compass measured Mercator chart meridian altitude meridian angle method miles minutes minutes of arc moon Nautical Almanac navigator observer's obtained parallax parallel plane plane sailing plotting Polaris pole problem rhumb line right ascension sailing sextant ship ship's head sidereal sight solution star steering subpermanent sun's tabulated tides tion track transit triangle variation vernal equinox vertical soft iron vessel watch westward zenith zone