{"id":6066,"date":"2019-04-14T17:07:22","date_gmt":"2019-04-14T16:07:22","guid":{"rendered":"http:\/\/lycee-bois-d-olive.ac-reunion.fr\/?p=6066"},"modified":"2019-04-14T17:08:40","modified_gmt":"2019-04-14T16:08:40","slug":"file-detoiles-au-pole-nord-celeste-2","status":"publish","type":"post","link":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/file-detoiles-au-pole-nord-celeste-2\/","title":{"rendered":"Fil\u00e9 d\u2019\u00e9toiles au P\u00f4le Nord c\u00e9leste"},"content":{"rendered":"<p style=\"text-align: left\"><strong>Les r\u00e9alisations photographiques du club <em>Guetali la O<\/em>.<\/strong><\/p>\n<p><!--more--><\/p>\n<p>Un autre fil\u00e9 d\u2019\u00e9toiles :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6017\" src=\"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole.jpg\" alt=\"\" width=\"1600\" height=\"1067\" srcset=\"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole.jpg 1600w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-300x200.jpg 300w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-1024x683.jpg 1024w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-150x100.jpg 150w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-1150x767.jpg 1150w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<p><em>Tu mourras moins b\u00eate\u2026<\/em><\/p>\n<p>La technique du fil\u00e9 d\u2019\u00e9toiles a \u00e9t\u00e9 vue dans un article pr\u00e9c\u00e9dent. Les photos constituant celui-ci ont \u00e9t\u00e9 prises en m\u00e9tropole, lors du d\u00e9placement d\u2019un des membres du club, l\u2019appareil photo install\u00e9 en direction du Nord.<\/p>\n<p>Une seule \u00e9toile reste immobile sur ce montage : saurez-vous trouver laquelle ?<\/p>\n<p>En effet, une \u00e9toile brillante est situ\u00e9e au P\u00f4le Nord c\u00e9leste, sur l\u2019axe des p\u00f4les. Elle a donc \u00e9t\u00e9 baptis\u00e9e \u00ab\u00a0\u00e9toile polaire\u00a0\u00bb (ou <em>\u03b1 Ursae Minor<\/em> pour les intimes astronomes). Elle est bien connue, dans l\u2019h\u00e9misph\u00e8re nord, pour indiquer la direction\u2026 du Nord. Elle fait partie de la constellation de la Petite Ourse (<em>Ursa Minor<\/em>).<\/p>\n<p>Au cours de la nuit, les 7 \u00e9toiles les plus brillantes de la constellation voisine de la Grande Ourse (<em>Ursa Major<\/em>) lui tournent autour, telles des b\u0153ufs labourant inlassablement le ciel, et ce, tout au long de l\u2019ann\u00e9e. C\u2019est pour cette raison que les Romains ont nomm\u00e9 cette direction \u00ab septentrion \u00bb (en latin \u00ab <em>septem triones<\/em>\u00a0\u00bb qui signifie \u00ab\u00a0sept boeufs\u00a0\u00bb).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6013\" src=\"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-annote\u0301.jpg\" alt=\"\" width=\"1800\" height=\"1200\" srcset=\"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-annote\u0301.jpg 1800w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-annote\u0301-300x200.jpg 300w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-annote\u0301-1024x683.jpg 1024w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-annote\u0301-150x100.jpg 150w, https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-content\/uploads\/sites\/147\/2019\/03\/LBO-Guetali-la-O-file\u0301-e\u0301toiles-me\u0301tropole-annote\u0301-1150x767.jpg 1150w\" sizes=\"auto, (max-width: 1800px) 100vw, 1800px\" \/><\/p>\n<p>Curiosit\u00e9s :<\/p>\n<ul>\n<li>Un avion s\u2019est invit\u00e9 sur la photo, cr\u00e9ant une ligne horizontale.<\/li>\n<li>La lueur rouge au bas de la photo n\u2019est pas le couch\u00e9 de Soleil (il ne se couche pas au Nord mais \u00e0 l\u2019Ouest). Il s\u2019agit de la pollution lumineuse du village voisin !<\/li>\n<\/ul>\n<p>Au P\u00f4le Sud c\u00e9leste, aucune \u00e9toile n\u2019y brille ! Pour trouver la direction du Sud, nous avons la croix du Sud qui fera l\u2019objet d\u2019un prochain article\u2026<\/p>\n<p style=\"text-align: right\"><em>&#8230; mais tu mourras quand m\u00eame !<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les r\u00e9alisations photographiques du club Guetali la O.<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/file-detoiles-au-pole-nord-celeste-2\/\">Lire la suite<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":21371,"featured_media":6017,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[94],"tags":[95,98],"class_list":["post-6066","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-club-astro","tag-guetali-la-o-le-club-astro-du-lycee","tag-les-photos-du-club-guetali-la-o"],"_links":{"self":[{"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/posts\/6066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/users\/21371"}],"replies":[{"embeddable":true,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/comments?post=6066"}],"version-history":[{"count":4,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/posts\/6066\/revisions"}],"predecessor-version":[{"id":6167,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/posts\/6066\/revisions\/6167"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/media\/6017"}],"wp:attachment":[{"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/media?parent=6066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/categories?post=6066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/etab.ac-reunion.fr\/lyc-bois-d-olive\/wp-json\/wp\/v2\/tags?post=6066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}