{"id":473,"date":"2008-09-09T11:04:00","date_gmt":"2008-09-09T09:04:00","guid":{"rendered":"https:\/\/kids.esa.int\/steins_a_diamond_in_the_sky\/"},"modified":"2026-10-08T00:28:37","modified_gmt":"2026-10-07T22:28:37","slug":"steins_a_diamond_in_the_sky","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/steins_a_diamond_in_the_sky\/","title":{"rendered":"Steins : Un diamant dans le ciel"},"content":{"rendered":"
\n

Construites \u00e0 partir des donn\u00e9es brutes acquises par les instruments de Rosetta, les premi\u00e8res images de l'ast\u00e9ro\u00efde Steins ont produit des r\u00e9sultats spectaculaires.<\/p>\n<\/div>\n

Steins ressemble \u00e0 un diamant dans le ciel. Les images de l'ast\u00e9ro\u00efde laissent appara\u00eetre plusieurs crat\u00e8res de petite taille et deux tr\u00e8s gros, dont l'un de 2 km de diam\u00e8tre, ce qui indique un \u00e2ge avanc\u00e9.<\/p>\n

\"Asteroid
Asteroid Steins: A diamond in space<\/figcaption><\/figure>\n

Les images ont un diam\u00e8tre de 50 \u00e0 60 pixels, suffisant pour caract\u00e9riser la forme et les autres propri\u00e9t\u00e9s de l'ast\u00e9ro\u00efde. Elles montrent une cha\u00eene de crat\u00e8res d'impact, probablement form\u00e9e par des impacts r\u00e9currents produits sur l'ast\u00e9ro\u00efde en rotation. Cette cha\u00eene comporte environ 7 crat\u00e8res. Pour d\u00e9terminer l'\u00e2ge de l'ast\u00e9ro\u00efde, un comptage des crat\u00e8res a \u00e9t\u00e9 entrepris \u00e0 la surface de l'ast\u00e9ro\u00efde. En effet, plus le nombre de crat\u00e8res est important, plus l'ast\u00e9ro\u00efde est \u00e2g\u00e9. Pour l'instant, 23 crat\u00e8res ont d\u00e9j\u00e0 \u00e9t\u00e9 observ\u00e9s.<\/p>\n

Apr\u00e8s l'analyse des donn\u00e9es de Rosetta, Steins sera l'un des ast\u00e9ro\u00efdes les mieux caract\u00e9ris\u00e9s jusqu'\u00e0 pr\u00e9sent.<\/p>","protected":false},"excerpt":{"rendered":"

The first images of Asteroid Steins taken by Rosetta\u2019s instruments were derived from raw data and have delivered spectacular results: asteroid Steins looks like a diamond in the sky. Visible […]<\/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\/2008\/09\/steins_getting_closer_actual_animation2\/17896237-2-eng-GB\/Steins_getting_closer_actual_animation.jpg","esa_banner_description":"Steins getting closer (actual animation)","esa_banner_credit":"ESA \u00a92008 MPS for OSIRIS Team MPS\/UPD\/LAM\/IAA\/RSSD\/INTA\/UPM\/DASP\/IDA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/09\/Steins_getting_closer_actual_animation2","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":[46,10,11],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-473","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/473","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=473"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/473\/revisions"}],"predecessor-version":[{"id":4503,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/473\/revisions\/4503"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=473"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=473"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=473"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=473"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=473"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=473"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=473"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}