RYA-THEORY-L3.1

Principles of astro-navigation

RYA-THEORY-M3 · Yachtmaster Ocean Theory · RYA-THEORY-M3-A Astro-navigation, worldwide meteorology and ocean passage-making.

Beyond the range of terrestrial marks, and as a backup when the electronics fail, the sun and stars give position anywhere on Earth. This lesson covers the principle of celestial navigation at Ocean theory level — how a sextant sight becomes a line on the chart.