This is an ADMIRALTY Astronomical Publication with information to support marine celestial navigation.
The Star Almanac contains positions of the major and selected bright stars in a tabular format for easy identification. It is ideal for land surveyors who use astronomical observations to determine their geographical position or the direction to true north.
This edition includes:
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A CD containing the almanac in PDF format and the coefficients representing the positions of the Sun and stars in ASCII files
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Coefficients for calculating the Greenwich hour angle and declination of all the stars published in The Star Almanac, accurate to about 1 arcsecond
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Polynomial coefficients for calculating R (GHA Aries - UT), declination, E and semi-diameter of the Sun are also included