{"id":69550,"date":"2025-07-03T12:00:00","date_gmt":"2025-07-03T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/aphelie-de-la-terre-le-3-juillet-2025-expliquee"},"modified":"2025-07-04T05:24:18","modified_gmt":"2025-07-04T05:24:18","slug":"aphelie-de-la-terre-le-3-juillet-2025-expliquee","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/aphelie-de-la-terre-le-3-juillet-2025-expliquee","title":{"rendered":"Aph\u00e9lie de la Terre le 3 Juillet 2025 Expliqu\u00e9e"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Si la Terre tourne autour du Soleil, elle n\u2019accomplit pas au cours de son pe\u0301riple un cercle parfait. L\u2019orbite de la Terre est en fait le\u0301ge\u0300rement elliptique avec une tre\u0300s faible excentricite\u0301, d\u2019environ 0,0167. Ce de\u0301tail, apparemment minime, entrai\u0302ne une variation notable de la distance entre la Terre et le Soleil au fil de l\u2019anne\u0301e. Ainsi, deux points particuliers jalonnent cette orbite: le pe\u0301rihe\u0301lie, lorsque la Terre est au plus proche du Soleil, et l\u2019aphe\u0301lie, lorsqu\u2019elle en est le plus e\u0301loigne\u0301e.<\/p>\n<p>En 2025, la Terre atteindra l\u2019aphe\u0301lie le jeudi 3 juillet a\u0300 19 h 54 min 43 sec UTC (21 h 54 en heure de Paris). A ce moment pre\u0301cis, la distance entre notre plane\u0300te et le Soleil sera de 152.087.738 kilome\u0300tres, selon les donne\u0301es fournies par le Laboratoire Temps Espace (anciennement Institut de me\u0301canique ce\u0301leste et de calcul des e\u0301phe\u0301me\u0301rides).<\/p>\n<p><b>Entre l\u2019aphe\u0301lie et le pe\u0301rihe\u0301lie, une diffe\u0301rence de 5 millions de kilome\u0300tres<\/b><\/p>\n<p>Six mois auparavant, le 4 janvier 2025 a\u0300 13h28 UTC (14h28 heure de Paris), la Terre e\u0301tait passe\u0301e au pe\u0301rihe\u0301lie, a\u0300 une distance minimale de 147.103.686 kilome\u0300tres du Soleil. Cela repre\u0301sente une diffe\u0301rence d\u2019environ 5 millions de kilome\u0300tres entre les deux extre\u0302mes.<\/p>\n<p>Pourtant, cette variation n\u2019a que tre\u0300s peu d\u2019influence sur les saisons: c\u2019est l\u2019inclinaison de l\u2019axe de rotation de la Terre (environ 23,5\u00b0) par rapport au plan de l\u2019orbite et la position de la Terre par rapport au Soleil qui de\u0301terminent la saison. Quand l\u2019he\u0301misphe\u0300re nord est oriente\u0301 vers le Soleil, l\u2019ensoleillement est plus important: c\u2019est l\u2019e\u0301te\u0301. L\u2019instant exact ou\u0300 la longitude du Soleil est a\u0300 90\u00b0, et donc ou\u0300 l\u2019he\u0301misphe\u0300re nord expose sa surface maximale s\u2019appelle le solstice d\u2019e\u0301te\u0301. En 2025, ce solstice a eu lieu le 21 juin a\u0300 4h42 heure de Paris.<\/p>\n<p>Du fait de son inclinaison, l\u2019ensoleillement des he\u0301misphe\u0300res varie au cours d\u2019une anne\u0301e.<\/p>\n<p><b>Les dates de passage de la Terre a\u0300 l\u2019aphe\u0301lie se de\u0301calent au fil des anne\u0301es<\/b><\/p>\n<p>Les dates de passage de la Terre au pe\u0301rihe\u0301lie et a\u0300 l\u2019aphe\u0301lie avancent dans le calendrier. D\u2019une vingtaine de minutes par an. Dans un peu moins de 5.000 ans, la Terre sera au plus loin du Soleil au moment de l\u2019e\u0301quinoxe d\u2019automne et dans un peu moins de 10.000 ans, au moment du solstice d\u2019hiver.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Si la Terre tourne autour du Soleil, elle n\u2019accomplit pas au cours de son pe\u0301riple un cercle parfait. L\u2019orbite de la Terre est en fait le\u0301ge\u0300rement elliptique avec une tre\u0300s faible excentricite\u0301, d\u2019environ 0,0167. Ce de\u0301tail, apparemment minime, entrai\u0302ne une variation notable de la distance entre la Terre et le Soleil au [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":69549,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-69550","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Aph\u00e9lie de la Terre le 3 Juillet 2025 Expliqu\u00e9e - Senegal<\/title>\n<meta name=\"description\" content=\"Si la Terre tourne autour du Soleil, elle n\u2019accomplit pas au cours de son pe\u0301riple un cercle parfait. 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