No 249 Sight Red. Tables 1 2025

Sight Reduction Tables for Air Navigation Vol. 1 The short name for the tables is HO249. Tables for navigation by astronomical method of calculating position lines. Volume 1 covers for seven selected stars ephemerides for latitudes from 89 to 89 degrees. The vertical argument is LHA and for each degree the altitude and azimuth of the star are tabulated. This volume is published every five years.