Reducere. Celestial navigation is a way to find your latitude and longitude on earth using a sextant to measure the angular heights of celestial bodies above...
starpath publications, carti, carte straina, sports & active outdoor recreation
Reducere. No power, and batteries used up? This book and an inexpensive Mark 3 sextant lets you carry on. Alternatively, if you want to learn a basic celesti...
starpath publications, carti, carte straina, technology