HomeAstro resources 1 Astro resources 1 Video Resources Astro navigation Intro to astro Getting a fix First sun sights Quick sunsights Get sextant working Quadrant error Sun shades Sextant animation Sight planning with StarPilot Lewis and Clark intro NASA video Documents Shore based courses Anchoring (pdf 41 kb) Charts (pdf 43 kb) Clouds (pdf 56 kb) Compass (pdf 65 kb) Crew Briefing (pdf 41 kb) International Distress Signals (pdf 50 kb) Sea Survival (pdf 54 kb) RYA Interactive courses Personal Professional Responsability course Essencial Nav course VHF pre course check interactive site login Online presentations course presentation nax exercises col regs SOLAS presentation