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Rapid Sight Reduction Tables for Navigation

Description:

Nautical Publication Number: NP 303

Air Publication Number: AP 3270

Rapid Sight Reduction Tables for Navigation is available as a three volume set.

Volume 1 contains the altitude to 1' and true azimuth to 1° for the seven stars most suitable for finding your position with a sextant, for the complete range of latitudes and hour angles of Aries. The latest edition is that for epoch 2020.0, published at the end of March 2017. This publication is aimed at the navigator using astro-navigation and provides the optimum selection of stars for a three-star fix.

Volume 2 and Volume 3 contain values of the altitude to 1' and azimuth to 1° for integral degrees of declination from 29° north to 29° south, for the complete range of latitudes and for all hour angles at which the zenith distance is less than 95° (97° between latitudes 70° and the poles) providing for sights of the Sun, Moon and planets. Volume 2 covers latitudes between 0° and 40°. Volume 3 covers latitudes between 39° and 89°.

Purchase:

You can purchase your copies from Admiralty Paper Distributors.

Status:

PDF copies of the sight reduction forms in these volumes are available:

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Last modified: Monday, 08 May 2017 at 15:49:29 BST