Sight Reduction Tables

Fast, dependable reductions for real-world sights. This collection includes standard marine sight-reduction tables (e.g., NP 303/HO 249, HO 229) used in training and at sea. Pair the right latitude volumes with your voyage, then streamline sun, planet, and star fixes with consistent, exam-ready workflows.

Choose your set: Find the correct volumes here—Sight Reduction Tables—matched to operating latitudes and practice needs.
What else you need: Current Nautical Almanacs & Tide Tables for GHA/Dec, plus plotting sheets and a reliable Sextant.
Learn the flow: Plan → observe → reduce → plot; polish technique with texts in Celestial Navigation.