Davis Quick Reference Celestial Navigation Card

The Davis Quick Reference Celestial Navigation Card is a compact, waterproof reference system designed for cruising sailors and offshore boaters who want traditional celestial navigation as a reliable backup to GPS. Whether you're crossing an ocean, sailing in remote waters, or simply maintaining essential navigation skills, this card consolidates the knowledge and procedures necessary to take accurate celestial sights and plot your position using the stars. For experienced mariners and those new to celestial work alike, it eliminates the need for bulky almanacs and complex tables while keeping proven methodology within arm's reach on the bridge or in the cabin.

This quick reference card includes everything required for complete celestial work: sextant operation and correction procedures, a built-in star finder covering 18 key navigational stars, a pre-formatted data entry form, and step-by-step sight reduction and plotting guidance. The card is engineered to be durable on deck—withstanding salt spray, water exposure, and constant handling—making it ideal for extended passages where quick reference during watches is critical. The condensed format focuses on practical application rather than theory, allowing you to execute observations and calculations efficiently without consulting multiple references.

Cruising sailors, maritime educators, and professional mariners rely on the Davis Quick Reference Celestial Navigation Card as part of their standard backup navigation kit. It pairs seamlessly with any quality sextant and is equally valuable for training crew, running drills, or refreshing your celestial skills before a passage. Weighing just one pound, it stores easily in a chart table, weatherproof pouch, or emergency kit without adding significant weight to your vessel. For anyone serious about self-sufficient navigation and seamanship, this card is an indispensable tool that has earned its place aboard working sailboats and cruising vessels worldwide.