{"id":5282,"date":"2017-03-18T07:13:35","date_gmt":"2017-03-18T07:13:35","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=5282"},"modified":"2020-03-19T16:55:16","modified_gmt":"2020-03-19T16:55:16","slug":"20-mars-le-printemps-debute-dans-lhemisphere-nord","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/","title":{"rendered":"20 mars : le printemps d\u00e9bute dans l&#8217;h\u00e9misph\u00e8re nord"},"content":{"rendered":"<p><strong>C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.<\/strong><\/p>\n<p>Le changement de saison n\u2019a rien d\u2019arbitraire ; il est dict\u00e9 par le mouvement apparent du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/03\/09\/en-video-leclipse-totale-de-soleil-du-9-mars-2016\/\" target=\"_blank\" rel=\"noopener noreferrer\">Soleil<\/a>. Au cours de l\u2019\u00e9quinoxe notre \u00e9toile coupe l\u2019\u00e9quateur c\u00e9leste (qui n\u2019est que la projection sur la vo\u00fbte c\u00e9leste de notre \u00e9quateur terrestre). Le franchissement de l\u2019\u00e9quateur c\u00e9leste par le Soleil s\u2019effectue dans le sens SUD-NORD le 20 mars (c&#8217;est la m\u00eame date depuis 2008 et \u00e7a le restera jusqu&#8217;en 2043) et se fera dans le sens NORD-SUD \u00e0 l&#8217;occasion de l\u2019\u00e9quinoxe d&#8217;automne.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg\"  rel=\"lightbox[5282] attachment wp-att-5283\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-5283\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe-450x337.jpg\" alt=\"soleil_equinoxe\" width=\"450\" height=\"337\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe-450x337.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe-768x575.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe-1024x766.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg 1203w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>D\u00e9sormais le Soleil va traverser le ciel au NORD de l\u2019\u00e9quateur c\u00e9leste : c\u2019est le d\u00e9but du printemps dans l\u2019h\u00e9misph\u00e8re nord et de l&#8217;automne dans l\u2019h\u00e9misph\u00e8re sud. Le Soleil atteindra sa d\u00e9clinaison la plus haute le 20 juin prochain : ce sera le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/19\/solstice-quand-le-soleil-se-levera-sur-stonehenge-le-21-juin\/\" target=\"_blank\" rel=\"noopener noreferrer\">solstice<\/a> qui marquera le d\u00e9but de l\u2019\u00e9t\u00e9 dans l\u2019h\u00e9misph\u00e8re nord.<!--more--><\/p>\n<p>Ce 20 mars, comme le 22 septembre prochain, la dur\u00e9e du jour est \u00e9gale \u00e0 la dur\u00e9e de la nuit, une \u00e9galit\u00e9 \u00e0 l\u2019origine du mot \u00e9quinoxe, du latin <em>\u00e6quus<\/em> (\u00e9gal) et <em>nox<\/em>, <em>noctis<\/em> (nuit).<\/p>\n<p>N&#8217;en d\u00e9plaise aux <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/14\/lumiere-rouge-les-astronomes\/\" target=\"_blank\" rel=\"noopener noreferrer\">astronomes<\/a>, les nuits vont donc continuer de raccourcir, diminuant le temps qu&#8217;ils pourront passer sous la<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/02\/10\/voie-lactee-depuis-le-desert-des-pinnacles-en-australie\/\" target=\"_blank\" rel=\"noopener noreferrer\"> Voie lact\u00e9e<\/a>. Mais ils se consoleront en profitant de temp\u00e9ratures nocturnes plus cl\u00e9mentes pour pratiquer leur passion nocturne, comme par exemple \u00e0 l&#8217;occasion des prochaines <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/03\/03\/rencontres-astronomiques-de-printemps-20-ans-en-2018\/\" target=\"_blank\" rel=\"noopener noreferrer\">Rencontres Astronomiques de Printemps<\/a>.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/165826110\" width=\"640\" height=\"480\" frameborder=\"0\" 0=\"webkitallowfullscreen\" 1=\"mozallowfullscreen\" 2=\"allowfullscreen&gt;&lt;\/iframe\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre. Le changement de saison n\u2019a rien d\u2019arbitraire ; il est dict\u00e9 par le mouvement apparent du Soleil. Au cours de l\u2019\u00e9quinoxe notre \u00e9toile coupe l\u2019\u00e9quateur c\u00e9leste (qui n\u2019est que la projection &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">20 mars : le printemps d\u00e9bute dans l&#8217;h\u00e9misph\u00e8re nord<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":5283,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[1254,378,217,419,97,216],"class_list":["post-5282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-equateur-celeste","tag-equinoxe","tag-hemisphere","tag-printemps","tag-soleil","tag-solstice"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>20 mars : le printemps d\u00e9bute dans l&#039;h\u00e9misph\u00e8re nord<\/title>\n<meta name=\"description\" content=\"C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"20 mars : le printemps d\u00e9bute dans l&#039;h\u00e9misph\u00e8re nord\" \/>\n<meta property=\"og:description\" content=\"C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2017-03-18T07:13:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-03-19T16:55:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1203\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jean-Baptiste FELDMANN\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Baptiste FELDMANN\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/\",\"name\":\"20 mars : le printemps d\u00e9bute dans l'h\u00e9misph\u00e8re nord\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg\",\"datePublished\":\"2017-03-18T07:13:35+00:00\",\"dateModified\":\"2020-03-19T16:55:16+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"description\":\"C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg\",\"width\":1203,\"height\":900},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/\",\"name\":\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\",\"description\":\"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\",\"name\":\"Jean-Baptiste FELDMANN\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"caption\":\"Jean-Baptiste FELDMANN\"},\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"20 mars : le printemps d\u00e9bute dans l'h\u00e9misph\u00e8re nord","description":"C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/","og_locale":"fr_FR","og_type":"article","og_title":"20 mars : le printemps d\u00e9bute dans l'h\u00e9misph\u00e8re nord","og_description":"C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.","og_url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/","og_site_name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","article_published_time":"2017-03-18T07:13:35+00:00","article_modified_time":"2020-03-19T16:55:16+00:00","og_image":[{"width":1203,"height":900,"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg","type":"image\/jpeg"}],"author":"Jean-Baptiste FELDMANN","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Jean-Baptiste FELDMANN","Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/","name":"20 mars : le printemps d\u00e9bute dans l'h\u00e9misph\u00e8re nord","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg","datePublished":"2017-03-18T07:13:35+00:00","dateModified":"2020-03-19T16:55:16+00:00","author":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea"},"description":"C\u2019est le 20 mars que d\u00e9bute le printemps dans l\u2019h\u00e9misph\u00e8re nord. Il s\u2019agit de l\u2019\u00e9quinoxe, moment o\u00f9 le Soleil traverse le plan \u00e9quatorial terrestre.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/18\/20-mars-le-printemps-debute-dans-lhemisphere-nord\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg","contentUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/03\/soleil_equinoxe.jpg","width":1203,"height":900},{"@type":"WebSite","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/","name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","description":"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea","name":"Jean-Baptiste FELDMANN","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","caption":"Jean-Baptiste FELDMANN"},"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/5282","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/comments?post=5282"}],"version-history":[{"count":12,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/5282\/revisions"}],"predecessor-version":[{"id":11720,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/5282\/revisions\/11720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media\/5283"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media?parent=5282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/categories?post=5282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/tags?post=5282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}