{"id":65988,"date":"2024-06-04T19:03:45","date_gmt":"2024-06-04T19:03:45","guid":{"rendered":"https:\/\/www.africa-press.net\/tchad\/politique\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit"},"modified":"2024-06-04T19:52:51","modified_gmt":"2024-06-04T19:52:51","slug":"est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit","title":{"rendered":"Est-ce que les \u00e9toiles sont toujours \u00e0 la m\u00eame place chaque nuit ?"},"content":{"rendered":"

Africa-Press – Tchad. <\/strong><\/span>Les e\u0301toiles semblent e\u0302tre toujours a\u0300 la me\u0302me place, or l’Univers est cense\u0301 e\u0302tre en mouvement, alors comment est-ce possible ?\u00a0\u00bb, nous demande William Stievenard sur notre page Facebook. C’est notre question de lecteur de la semaine. Merci a\u0300 toutes et a\u0300 tous pour votre participation. Pour y re\u0301pondre, (re)de\u0301couvrez ci-dessous notre article \u00ab\u00a0Les e\u0301toiles changent-elles de place pendant la nuit ?\u00a0\u00bb, issu du hors-se\u0301rie de Sciences et Avenir \u00ab\u00a0Le ciel de l’e\u0301te\u0301 en 50 questions\u00a0\u00bb, paru en juillet\/aou\u0302t 2016.<\/p>\n

Le de\u0301placement des e\u0301toiles, imperceptible le temps d’une vie humaine<\/b><\/p>\n

Les e\u0301toiles bougent, ne serait-ce que parce que l\u2019Univers se dilate. Mais elles sont trop e\u0301loigne\u0301es de nous pour que leur de\u0301placement soit perceptible a\u0300 l\u2019e\u0301chelle d\u2019une vie humaine.<\/p>\n

Ce que nous pouvons observer chaque nuit, en revanche, ce sont les mouvements de la vou\u0302te ce\u0301leste.<\/p>\n

Les e\u0301toiles \u00ab\u00a0bougent\u00a0\u00bb de 15 degre\u0301s chaque heure<\/b><\/p>\n

La rotation de la Terre modifie en effet le point de vue de l\u2019observateur, comme s\u2019il e\u0301tait sur un mane\u0300ge. Notre plane\u0300te tournant sur elle-me\u0302me en vingt-quatre heures, les e\u0301toiles \u00ab\u00a0bougent\u00a0\u00bb de 15 degre\u0301s chaque heure. Dans l\u2019he\u0301misphe\u0300re Nord, ces de\u0301placements semblent s\u2019effectuer autour d\u2019un point fixe, l\u2019e\u0301toile Polaire.<\/p>\n

Pour plus d’informations et d’analyses sur la Tchad<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Tchad. Les e\u0301toiles semblent e\u0302tre toujours a\u0300 la me\u0302me place, or l’Univers est cense\u0301 e\u0302tre en mouvement, alors comment est-ce possible ?\u00a0\u00bb, nous demande William Stievenard sur notre page Facebook. C’est notre question de lecteur de la semaine. Merci a\u0300 toutes et a\u0300 tous pour votre participation. Pour y re\u0301pondre, (re)de\u0301couvrez ci-dessous notre […]<\/p>\n","protected":false},"author":82,"featured_media":65987,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[37,292,29],"class_list":["post-65988","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-tchad","tag-tchad"],"yoast_head":"\nEst-ce que les \u00e9toiles sont toujours \u00e0 la m\u00eame place chaque nuit ? - tchad<\/title>\n<meta name=\"description\" content=\"Les e\u0301toiles semblent e\u0302tre toujours a\u0300 la me\u0302me place, or l'Univers est cense\u0301 e\u0302tre en mouvement, alors comment est-ce ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Est-ce que les \u00e9toiles sont toujours \u00e0 la m\u00eame place chaque nuit ?\" \/>\n<meta property=\"og:description\" content=\"Les e\u0301toiles semblent e\u0302tre toujours a\u0300 la me\u0302me place, or l'Univers est cense\u0301 e\u0302tre en mouvement, alors comment est-ce ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit\" \/>\n<meta property=\"og:site_name\" content=\"tchad\" \/>\n<meta property=\"article:published_time\" content=\"2024-06-04T19:03:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-06-04T19:52:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2024\/06\/sm_1717518046.334022.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"898\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\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\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Est-ce que les \u00e9toiles sont toujours \u00e0 la m\u00eame place chaque nuit ?\",\"datePublished\":\"2024-06-04T19:03:45+00:00\",\"dateModified\":\"2024-06-04T19:52:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit\"},\"wordCount\":260,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2024\/06\/sm_1717518046.334022.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Tchad\",\"Tchad\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit\",\"url\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/est-ce-que-les-etoiles-sont-toujours-a-la-meme-place-chaque-nuit\",\"name\":\"Est-ce que les \u00e9toiles sont toujours \u00e0 la m\u00eame place chaque nuit ? 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