Sight Reduction Tables H.O. 229, Vol. 5: Latitudes 60-75

Volume 5 for latitudes 60 to 75. Inspection tables of precomputed altitudes and azmuths used for reducing sights to solve for position. Each volume contains data for a 16 degree band of latitude north or south with a 1 degree overlap between volumes. Permits the reduction of an observation of any navigational body. Includes a simple approach to star identification.