{"id":753,"date":"2012-03-16T14:07:00","date_gmt":"2012-03-16T13:07:00","guid":{"rendered":"https:\/\/kids.esa.int\/near-miss_asteroid_will_return_next_year\/"},"modified":"2026-10-08T00:31:53","modified_gmt":"2026-10-07T22:31:53","slug":"near-miss_asteroid_will_return_next_year","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/near-miss_asteroid_will_return_next_year\/","title":{"rendered":"Ast\u00e9ro\u00efde repassera pr\u00e8s de la Terre en 2013"},"content":{"rendered":"
\n

Un ast\u00e9ro\u00efde r\u00e9cemment d\u00e9couvert pourrait passer \u00e0 proximit\u00e9 imm\u00e9diate de notre plan\u00e8te en 2013. Cet objet c\u00e9leste d\u2019un diam\u00e8tre de 50 m\u00e8tres, qui pourrait se rapprocher dangereusement de la Terre et passer dans le champ des satellites g\u00e9ostationnaires, nous rappelle \u00e0 quel point il est important de surveiller les menaces li\u00e9es aux ast\u00e9ro\u00efdes g\u00e9ocroiseurs.<\/p>\n<\/div>\n

Le 22 f\u00e9vrier dernier, une \u00e9quipe d\u2019astronomes amateurs a d\u00e9couvert cet ast\u00e9ro\u00efde, qui a \u00e9t\u00e9 baptis\u00e9 2012 DA14. Sa petite taille et son orbite nous r\u00e9v\u00e8lent qu\u2019il a \u00e9t\u00e9 d\u00e9couvert apr\u00e8s avoir survol\u00e9 la Terre \u00e0 une position d\u2019environ sept fois la distance Terre-Lune.<\/p>\n

Les scientifiques pr\u00e9voient que lors de son prochain passage, pr\u00e9vu le 15 f\u00e9vrier 2013, il passera \u00e0 seulement 24 000 km de la Terre, soit plus pr\u00e8s que de nombreux satellites. \u201c C'est une distance s\u00fbre, mais suffisamment proche pour que l'ast\u00e9ro\u00efde soit visible avec des jumelles classiques \u201d, explique Detlef Koschny, qui travaille au bureau de surveillance de l'espace (SSA) de l'ESA.<\/p>\n

L\u2019ast\u00e9ro\u00efde a \u00e9t\u00e9 d\u00e9couvert \u00e0 l\u2019observatoire de La Sagra, situ\u00e9 au sud de l\u2019Espagne dans l\u2019une des r\u00e9gions europ\u00e9ennes o\u00f9 la pollution lumineuse est la plus faible.<\/p>\n

2012 DA14 ne touchera pas la Terre lors de son prochain passage. Cependant, sa faible altitude devrait permettre aux astronomes de l'\u00e9tudier de pr\u00e8s. Les informations li\u00e9es \u00e0 l\u2019ast\u00e9ro\u00efde, \u00e0 la m\u00e9t\u00e9orologie et aux d\u00e9bris spatiaux vont aider les chercheurs europ\u00e9ens \u00e0 mieux comprendre et \u00e9valuer les risques d\u2019impact si jamais un ast\u00e9ro\u00efde devait toucher la Terre.<\/p>","protected":false},"excerpt":{"rendered":"

When it whizzes past Earth in 2013, a newly discovered asteroid is going to miss our planet \u2013 but not by much! The 50 m space rock is expected to […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2010\/10\/how_does_lutetia_compare_to_the_other_asteroids_and_comets_visited_by_spacecraft2\/17900828-2-eng-GB\/How_does_Lutetia_compare_to_the_other_asteroids_and_comets_visited_by_spacecraft.png","esa_banner_description":"","esa_banner_credit":"Collage by Planetary Society USA\/E. Lakadawalla.","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/10\/How_does_Lutetia_compare_to_the_other_asteroids_and_comets_visited_by_spacecraft2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-753","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=753"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/753\/revisions"}],"predecessor-version":[{"id":1896,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/753\/revisions\/1896"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=753"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=753"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=753"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=753"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=753"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=753"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=753"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}