{"id":274,"date":"2020-10-20T18:34:44","date_gmt":"2020-10-20T18:34:44","guid":{"rendered":"https:\/\/maritimesa.org\/nautical-science-grade-11\/?p=274"},"modified":"2020-10-20T18:34:44","modified_gmt":"2020-10-20T18:34:44","slug":"uses-of-the-sextant","status":"publish","type":"post","link":"https:\/\/maritimesa.org\/nautical-science-grade-11\/2020\/10\/20\/uses-of-the-sextant\/","title":{"rendered":"Uses of the sextant"},"content":{"rendered":"

Although the marine sextant is seldom used these days due to the introduction of satellite navigation systems (ie GPS), it still can be used for the following:<\/p>\n

    \n
  1. Measuring the altitude of the stars, sun, moon and planets in order to determine geographical position out of sight of land (ocean navigation).<\/li>\n
  2. Measuring horizontal sextant angles between prominent terrestrial objects to fix position (coastal navigation).<\/li>\n
  3. Measuring vertical sextant angles of suitably positioned high terrestrial objects to obtain distance off (coastal navigation).<\/li>\n
  4. Vertical distances of masts to obtain distance off other ships when steaming in convoy (in times of conflict).<\/li>\n
  5. Hydrographic surveying.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Although the marine sextant is seldom used these days due to the introduction of satellite navigation systems (ie GPS), it still can be used for the following: Measuring the altitude of the stars, sun, moon and planets in order to determine geographical position out of sight of land (ocean navigation). […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,33,35],"tags":[],"class_list":["post-274","post","type-post","status-publish","format-standard","hentry","category-11-1-navigation","category-11-1-4-the-marine-sextant","category-11-1-4-2-uses"],"_links":{"self":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts\/274"}],"collection":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/comments?post=274"}],"version-history":[{"count":2,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts\/274\/revisions"}],"predecessor-version":[{"id":276,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/posts\/274\/revisions\/276"}],"wp:attachment":[{"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/media?parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/categories?post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maritimesa.org\/nautical-science-grade-11\/wp-json\/wp\/v2\/tags?post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}