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 154
ROM AN ALTITUDE OF THE SUN.This \B one of the most important problems in Nautical Astronomy, and for the solution of which werequire to have the Altitude and Polar Distance of the body, and the Latitude of the place of observation,being three sides of an Oblique-Angled Spherical Triangle given, to… … Diagram of an Hour Angle. Latitude and Declination of Contrary Names. Fui. 23.
Navigation · Nautical astronomy
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