{"id":53530,"date":"2026-03-13T23:26:20","date_gmt":"2026-03-13T22:26:20","guid":{"rendered":"https:\/\/kart.no\/produkt\/sight-reduction-tables-pub-229-marine-navigation-volume-2\/"},"modified":"2026-03-13T23:26:20","modified_gmt":"2026-03-13T22:26:20","slug":"sight-reduction-tables-pub-229-marine-navigation-volume-2","status":"publish","type":"product","link":"https:\/\/kart.no\/en\/produkt\/sight-reduction-tables-pub-229-marine-navigation-volume-2\/","title":{"rendered":"Sight Reduction Tables – Pub. 229 (Marine Navigation) Volume 2"},"content":{"rendered":"

Sight Reduction Tables – Pub. 229 Volume 2<\/strong> is a classic nautical publication used in astronomical navigation at sea<\/strong>. The table is part of the Sight Reduction Tables for Marine Navigation<\/strong> series (Pub. 229)<\/strong>, designed to make calculating position from celestial observations faster and more convenient for navigators. <\/p>\n

The publication is used in conjunction with the Nautical Almanac<\/strong>, sextant and a precise chronometer to reduce observations of the sun, moon, planets and navigational stars to a position line on the chart. Using pre-calculated trigonometric tables, the navigator can look up the altitude and azimuth of a celestial body without having to perform complicated mathematical calculations along the way. This makes the tables a robust aid for traditional navigation when electronic navigation systems are not available. <\/p>\n

Pub. 229 Volume 2 covers latitudes from 15\u00b0 to 30\u00b0<\/strong> and is therefore particularly useful in subtropical and temperate seas. Together with the other volumes in the series, Sight Reduction Tables provide global coverage for astronomical navigation. <\/p>\n

Sight Reduction Tables is structured for practical use on board, with systematic look-up tables that make it easy to find the necessary data during navigation. The publication is still used in maritime education, by long-distance sailors and by navigators who want to master classical astronavigation<\/strong> as a supplement to modern electronic systems. <\/p>\n","protected":false},"excerpt":{"rendered":"

Sight Reduction Tables Pub. 229 Volume 2 is a nautical table book for astronomical navigation at sea. The publication covers latitudes 15\u00b0-30\u00b0 and is used in conjunction with the Nautical Almanac to calculate position lines based on sextant observations. <\/p>\n","protected":false},"featured_media":42719,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[1395],"product_cat":[1073],"product_tag":[],"class_list":["post-53530","product","type-product","status-publish","has-post-thumbnail","product_brand-u-s-national-geospatial-intelligence-agency","product_cat-celestial-navigation","product_shipping_class-boxship","first","instock","taxable","shipping-taxable","purchasable","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 Pub. 229 Volume 2 - Marine Navigation<\/title>\n<meta name=\"description\" content=\"Sight Reduction Tables Pub. 229 Volume 2 for maritime astronavigation. 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