{"id":53518,"date":"2026-01-11T21:08:17","date_gmt":"2026-01-11T20:08:17","guid":{"rendered":"https:\/\/kart.no\/produkt\/sight-reduction-tables-pub-249-air-navigation-volume-2\/"},"modified":"2026-01-11T21:08:17","modified_gmt":"2026-01-11T20:08:17","slug":"sight-reduction-tables-pub-249-air-navigation-volume-2","status":"publish","type":"product","link":"https:\/\/kart.no\/en\/produkt\/sight-reduction-tables-pub-249-air-navigation-volume-2\/","title":{"rendered":"Sight Reduction Tables – Pub. 249 (Air Navigation) – Volume 2"},"content":{"rendered":"

This is a classic and recognized reference work of astronavigation<\/strong> tables, originally developed for aviation, but also widely used in maritime navigation. The book contains comprehensive sight reduction tables covering latitudes from the equator to 40\u00b0 and declinations from 0\u00b0 to 29\u00b0, and is used to reduce astronomical observations using the sextant and nautical almanac. <\/p>\n

The tables make it possible to calculate the altitude and azimuth of the sun, moon, planets and stars, and thus determine position on the earth’s surface without the use of electronic aids. This makes the book particularly useful for sailors and navigators who want a robust and independent method of position determination, either as primary navigation or as a backup to GPS. <\/p>\n

This volume is Volume 2 in the Pub. No. 249 series<\/strong>, covering low and middle latitudes. Together with Volume 3 (39\u00b0-89\u00b0), the series provides full coverage for almost all practical sailing areas. The book is also used in teaching and training in classical navigation and astronavigation. <\/p>\n","protected":false},"excerpt":{"rendered":"

Astronavigation tables (Pub. No. 249 Vol. 2) for latitudes 0\u00b0-40\u00b0, used for navigation with sextant and nautical almanac.<\/p>\n","protected":false},"featured_media":42718,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[1395],"product_cat":[1073],"product_tag":[],"class_list":{"0":"post-53518","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-u-s-national-geospatial-intelligence-agency","7":"product_cat-celestial-navigation","8":"product_shipping_class-boxship","9":"pa_produsent-celestaire","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"acf":[],"yoast_head":"\nSight Reduction Tables for Air Navigation - Volume 2 | Astronavigasjonstabeller<\/title>\n<meta name=\"description\" content=\"Astronavigation tables (Pub. 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