Your card will be charged when the item ships. Item expected to ship in September 2020.
A simplified, yet complete Celestial Navigation system. Includes everything you need: sextant use and corrections, starfinder for 18 stars, data entry form, and step-by-step sight reduction and plotting procedures.
May be scored and separated; large portion fits in the sextant case for quick reference, and small part acts as a waterproof data reduction card.