NP303(1) Rapid Sight Reduction Tables for Air Navigation Vol 1 Epoch 2020

This edition is valid for the period 2016-2024
Contains the altitude to 1 minute and true azimuth to 1 degree for the seven stars most suitable for finding your position with a sextant, for the complete range of latitudes and hour angles of Aries.
This publication is aimed at the navigator using celestial navigation and provides the optimum selection of stars for a three-star fix.