Abstract
BY the pamphlet and diagrams prepared by Mr. McGegan he suggests a method by which, when an observer has taken an altitude of a star the identity of which is doubtful, he can, if he also observes the compass bearing of the object at the same time, ascertain its declination and right ascension, and thus identify it in the Nautical Almanac.
Star Identifier and Diagrams for the Graphical Solution of Problems in Nautical Astronomy.
By J. E. McGegan. (London: The London Name Plate Manufacturing Co., and J. D. Potter, 1916.) Price 10s. 6d. net.
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Star Identifier and Diagrams for the Graphical Solution of Problems in Nautical Astronomy . Nature 98, 406 (1917). https://doi.org/10.1038/098406a0
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DOI: https://doi.org/10.1038/098406a0