Abstract
THERE are several tables in use which will enable a mariner to derive the correct meridian altitude of an object when the altitude near the meridian is known. Mr. H. B. Goodwin has constructed tables which will give a correction of a similar character to obtain from observed altitudes near the prime vertical the correct altitude on that circle. If the object does not cross. the prime vertical, the author employs the circle of maximum azimuth. The tables are not general, but refer to certain bright stars, eleven in the northern and six in the southern hemisphere. Seeing that some of the declinations fall very close together, as those of α Andromedæ, Pollux, α Coronæ, &c., there might have been some advantage in computing the tables for regular intervals of declination rather than for selected stars.
Position-line Star Tables: for Fixing Ship's Position by Reduction to Meridian and Prime Vertical without Logarithmic Calculation.
By H. B. Goodwin Pp. xiv + 96. (London: J. D. Potter, 1906.)
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P., W. Position-line Star Tables: for Fixing Ship's Position by Reduction to Meridian and Prime Vertical without Logarithmic Calculation . Nature 75, 197–198 (1906). https://doi.org/10.1038/075197b0
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DOI: https://doi.org/10.1038/075197b0
