The American practical navigator : being an epitome of navigation and nautical astronomy (1888)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Navigation, Cooper, Philip Henry, 1844-1912 · Washington : Govt. Print. Off. · leaf 178
+ 55° 650 0 66 37 20 0 log sec22 log cosec 0.191930.03720 8.858069.70878 hLP.D s — h tEq. t. L. m. t.Gr. m. t Long., ^ 55° 6 2049 40 066 37 20 log seclog cosec log coslog sin log sin %(A2) 0.188940.03720 s -h = 171 43 85 5130 45 i552 42 51 log cos31 log sin 50*^ log sin yi30 2)171 23 40 85 41 503c… … U4 a given altitude,Navigation. One other i Sumners method. t will upon the Navigators chart, with an explanation of its practical application to the necessities of loint should be noticed in connection with this system, in order to avoid confusion in nomenclature. The heavenly body, or the pole of…
Navigation · Nautical astronomy
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