""Simultaneous Altitudes and Azimuths of Celestial Bodies 1919"" is a book authored by the Secretary of the Navy which provides a detailed and comprehensive guide to celestial navigation. The book covers the use of altitudes and azimuths of celestial bodies, such as stars and planets, to determine a ship's position at sea. It includes detailed explanations of the mathematical calculations involved in celestial navigation, as well as practical advice on how to use the sextant and other instruments. The book also includes tables of data and diagrams to aid in calculations and observations. Originally published in 1919, this book remains a valuable resource for anyone interested in celestial navigation or the history of navigation.Published by the Hydrographic Office under the Authority of the Secretary of the Navy.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.