Abstract
IT is commonly thought that the determination of the position of a moving aircraft by means of astronomical observations is a difficult and complicated business. Actually, the principles involved are of extreme simplicity, and the working out of the observations takes at the most a few minutes with the aid of the Air Almanac and suitable altitude-azimuth tables to provide the solutions of the spherical triangles.
The Observer's Book on Astro-Navigation
By Francis Chichester. Part 1. Pp. 103. Part 2. Pp. 83. (Observers' Books, Nos. 3 and 4.) (London: George Allen and Unwin, Ltd., 1940.) 2s. 6d. net each.
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J., H. The Observer's Book on Astro-Navigation. Nature 147, 493–494 (1941). https://doi.org/10.1038/147493b0
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DOI: https://doi.org/10.1038/147493b0
