[Coffin, John Huntington Crane], 1815-1890. [from old catalog] · New York, D. Van Nostrand · leaf 46
ar points of a spheri-cal triangle, formed by the arcsjoining these points with eachother and with the pole. If fromP we draw P C0 perpendicular toA B, the point C0 is nearer thepole than any other point of A B;that is, it is the point of maximumlatitude. This point of greatest latitude is called… … Fig. 9. 40 NAVIGATION. Case I. of Sph. Trig., and then solving one of the right tri-angles A JP C0 01 B P C0. But in practice the followingmethod is preferable. Let X1 = (90°—P A), the latitude of A, or the less latitude,Lcf=z (90°—P B), the latitude of B, or the greater latitude, A=A P B, the…
Navigation · Nautical astronomy
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-65-42.webp)
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-265-170.webp)
