The Davis Instruments Celestial Navigation Card provides a simplified yet complete guide to Celestial Navigation. Davis Instruments Celestial Navigation Cards include everything you need: sextant use and corrections, starfinder for 18 stars, data entry form and step-by-step sight reduction and plotting procedures. Davis Instruments Celestial Navigation Cards may be scored and separated; large portion fits in sextant case for quick reference and small part acts as a waterproof data reduction card.
• Full-color two-sided Cards
• Printed on high strength plastic built to withstand the elements
• 8.5 x 11 inch (22 x 28 cm) with three hole punch for binder or bulkhead mounting
• Designed in close cooperation with the US Coast Guard Auxiliary
• Provides a simplified yet complete guide to Celestial Navigation