The Projection and Calculation of the Sphere for Young Sea Officers Being a Complete Initiation Into Nautical Astronomy |
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The Projection and Calculation of the Sphere for Young Sea Officers S M Saxby No preview available - 2018 |
Common terms and phrases
azimuth circle calculation called centre circle by Prob complement construction cosine declination 20 degrees diff 2 sides draw an oblique Draw diameters Draw the oblique Draw the parallel equal equator Euclid EXAMPLE extr conjunct extr disjunct figure Find side formulæ given side gnomonic projection half diff half sum half the difference half the sum horizon hour angle hour circle hypothenuse intersection latitude log sine log tang logarithms meridian nautical astronomy navigator oblique circle opposite angle parallel of declination perpendicular plane projection radius right angles right circle rule of sines scale of chords scale of semi-tangents secant side 60 sine diff sine of half sine of middle sine side BC sines 79 small circle sphere spheric angles spheric triangle SPHERIC TRIGONOMETRY stereographic projection sun's place tangent trigonometry vulgar fraction zenith وو وو وو