A new treatise on the practice of navigation at sea : containing all the details necessary to enable the mariner to become a good practical navigator. (1902)
Thoms, William · New York : Printed for the author and sold by John Bliss & Co · leaf 118
Limb 26° 52 S. Semi-diam, add, 16 Index Error, Sub.... 2_ Dip. 4, Ref 2=Sub..^ 26° 50 Balance of Corr 10, Add.^^ 10 Suns true Central Altitude 27* 0 90 0 Zenith Distance .63° 0N Correct Declination. 23 0 S. Latitude in 716° 0 N. EXAMPLE 2. June 1st, 1854. In the Long, of 90° E., the Meridian… … R0LK.—Proceed, as in the last Example, to draw the figure. Then lay off the Suns correct Altitude, 70* on theleft. Take the Declination, 22° N., in the dividers, and with one foot in the Suns place, extend the other downwards,(because the Declination is North,) which will mark the upper end of the…
Navigation · Nautical astronomy
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
