{"product_id":"2725861","title":"Reeds Astro Navigation Tables 2026","description":"Navigate the world's oceans with confidence using this comprehensive and compact almanac. Featuring updated sight reduction tables and star ID charts, it provides the necessary information for celestial navigation. This user-friendly guide includes forms to help determine True Airspeed, as well as calculations for navigating by the sun, moon, and stars. Whether you're a seasoned sailor or a novice navigator, this compact almanac is an essential tool for any ocean-going journey. With its clear and easy-to-use charts, you'll be able to resolve any calculation you need, making it an indispensable companion for any voyage.","brand":"Chalkys.com","offers":[{"title":"Default Title","offer_id":54699440406913,"sku":"2725861","price":39.98,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/8043\/1219\/files\/412lItDcW4L.jpg?v=1757130465","url":"https:\/\/chalkys.com\/products\/2725861","provider":"Chalkys.com","version":"1.0","type":"link"}