{"id":2387,"date":"2020-02-14T15:47:59","date_gmt":"2020-02-14T14:47:59","guid":{"rendered":"http:\/\/www.astro-ge.net\/?p=2387"},"modified":"2025-10-15T22:06:01","modified_gmt":"2025-10-15T20:06:01","slug":"letoile-du-berger","status":"publish","type":"post","link":"https:\/\/www.astro-ge.net\/?p=2387","title":{"rendered":"L&rsquo;\u00e9toile du Berger"},"content":{"rendered":"\n<p><iframe loading=\"lazy\" style=\"border: medium none ; overflow: hidden; height: 35px;\" src=\"\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fwww.astro-ge.net%2F%3Fp%3D2387&amp;width&amp;layout=standard&amp;action=like&amp;show_faces=true&amp;share=true&amp;height=40\" scrolling=\"no\" width=\"300\" height=\"100\" frameborder=\"0\">&amp;amp;lt;span\nstyle=\u00a0\u00bbdisplay: inline-block; width: 0px; overflow: hidden;\nline-height: 0;\u00a0\u00bb data-mce-type=\u00a0\u00bbbookmark\u00a0\u00bb\nclass=\u00a0\u00bbmce_SELRES_start\u00a0\u00bb&amp;amp;gt;\ufeff&amp;amp;lt;\/span&amp;amp;gt;<\/iframe><\/p>\n\n\n\n<p><strong>Visible le soir<\/strong><br>En ce moment une \u00e9toile d&rsquo;un vif \u00e9clat est visible apr\u00e8s le coucher du soleil en direction de l&rsquo;Ouest (photos ci-dessous). Par sa brillance, cet astre qui porte le nom d&rsquo;\u00e9toile du Berger surpasse toutes les \u00e9toiles se trouvant dans son voisinage. Mais qu&rsquo;est-ce que l&rsquo;\u00e9toile du Berger ?<\/p>\n\n\n\n<p><strong>Une plan\u00e8te<br><\/strong>L&rsquo;\u00e9toile du Berger est en fait la plan\u00e8te V\u00e9nus dont l&rsquo;\u00e9clat est li\u00e9 \u00e0 sa proximit\u00e9 avec la terre et \u00e9galement \u00e0 l&rsquo;alb\u00e9do \u00e9lev\u00e9e de son atmosph\u00e8re. Contrairement \u00e0 une \u00e9toile, qui g\u00e9n\u00e8re elle-m\u00eame sa lumi\u00e8re, V\u00e9nus ne fait que r\u00e9fl\u00e9chir la lumi\u00e8re du soleil.<\/p>\n\n\n\n<p><strong>Une orbite int\u00e9rieure<br><\/strong>V\u00e9nus orbite autour du soleil \u00e0 108 millions de kilom\u00e8tres du soleil et la Terre \u00e0 149 millions. De ce fait V\u00e9nus est une plan\u00e8te \u00ab&nbsp;int\u00e9rieure&nbsp;\u00bb du point de vue orbital par rapport \u00e0 la terre.<\/p>\n\n\n\n<p>Pour un observateur terrestre, elle restera au voisinage du soleil et sera visible soit avant le lever du soleil ou apr\u00e8s son coucher. Elle indiquera respectivement l\u2019Est le matin et l\u2019Ouest le soir.<\/p>\n\n\n\n<p>C\u2019est l\u2019astre le plus brillant apr\u00e8s le soleil et la lune. Cette particularit\u00e9 la rendait utile pour les bergers qui pouvaient facilement s\u2019orienter dans les temps recul\u00e9s lorsque le soleil \u00e9tait sous l&rsquo;horizon.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.astro-ge.net\/wordpress\/wp-content\/uploads\/2020\/02\/Venus_large-768x1024.jpg\" alt=\"\" class=\"wp-image-3240\" srcset=\"https:\/\/www.astro-ge.net\/wordpress\/wp-content\/uploads\/2020\/02\/Venus_large-768x1024.jpg 768w, https:\/\/www.astro-ge.net\/wordpress\/wp-content\/uploads\/2020\/02\/Venus_large-225x300.jpg 225w, https:\/\/www.astro-ge.net\/wordpress\/wp-content\/uploads\/2020\/02\/Venus_large-1152x1536.jpg 1152w, https:\/\/www.astro-ge.net\/wordpress\/wp-content\/uploads\/2020\/02\/Venus_large.jpg 1280w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\">V\u00e9nus visible vers l&rsquo;Ouest le soir<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&amp;amp;lt;span style=\u00a0\u00bbdisplay: inline-block; width: 0px; overflow: hidden; line-height: 0;\u00a0\u00bb data-mce-type=\u00a0\u00bbbookmark\u00a0\u00bb class=\u00a0\u00bbmce_SELRES_start\u00a0\u00bb&amp;amp;gt;\ufeff&amp;amp;lt;\/span&amp;amp;gt; Visible le soirEn ce moment une \u00e9toile d&rsquo;un vif \u00e9clat est visible apr\u00e8s le coucher du soleil en direction de l&rsquo;Ouest (photos ci-dessous). Par sa brillance, cet astre qui &hellip; <a href=\"https:\/\/www.astro-ge.net\/?p=2387\">Continuer la lecture <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-2387","post","type-post","status-publish","format-standard","hentry","category-articles"],"_links":{"self":[{"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=\/wp\/v2\/posts\/2387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2387"}],"version-history":[{"count":0,"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=\/wp\/v2\/posts\/2387\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astro-ge.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}