高度方位暦について(日本航海学会第16回講演会)

抄録

During the War, the Aero-Navigation Tables (Astronomical Navigation Tables, abridged) and Alt-Azimuth Ephemeris were published by our H.O., The purpose of these tables were to simplify the calculations within the error of 2'-3', which balances with the errors of determined positions of ships in ordinary navigations.