Excerpt from Computation Forms for the Class in Practical Astronomy at the Observatory of Columbia University, New York
Aberration is the apparent change in a star's position caused by the progressive motion of light combined with the motion of the earth itself.
Annual is the effect produced by the earth's motion around the sun.
Diurnal is the effect produced by the earth's motion on its axis.
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Paperback. Zustand: New. Print on Demand. This book is a collection of celestial navigation techniques used on sailboats and aircraft before the advent of GPS. It contains two chapters on the sextant, an optical instrument critical for these methods. The author thoroughly describes how to use trigonometric formulas to solve a celestial navigation problem from start to finish. The author includes tables to simplify these often complex computations. Furthermore, the author includes several ways to measure the angle needed to solve these calculations using the sextant accurately. Sailors and aviators who want to learn, improve, and refine their celestial navigation skills will find this book invaluable. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781527917484_0
Anzahl: Mehr als 20 verfügbar
Anbieter: PBShop.store US, Wood Dale, IL, USA
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781527917484
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781527917484
Anzahl: 15 verfügbar