{"id":746,"date":"2025-10-04T15:20:20","date_gmt":"2025-10-04T14:20:20","guid":{"rendered":"https:\/\/centreastronomiquevendeen.fr\/?page_id=746"},"modified":"2025-10-20T14:28:15","modified_gmt":"2025-10-20T13:28:15","slug":"visuel-assiste-eaa","status":"publish","type":"page","link":"https:\/\/centreastronomiquevendeen.fr\/?page_id=746","title":{"rendered":"Visuel assist\u00e9 (EAA)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\ud83d\udcbb Qu\u2019est-ce que le \u00ab\u00a0visuel assist\u00e9\u00a0\u00bb (EAA) ?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u00e9finition<\/strong> : L\u2019astronomie assist\u00e9e \u00e9lectroniquement (\u00ab Electronically Assisted Astronomy \u00bb, ou EAA) est une technique d\u2019observation qui utilise une cam\u00e9ra au lieu d\u2019un oculaire classique, permettant de capturer des images \u00e0 courtes expositions, puis de les empiler en temps quasi r\u00e9el pour visualiser un r\u00e9sultat am\u00e9lior\u00e9 sur \u00e9cran. C&rsquo;est une branche de <a href=\"https:\/\/centreastronomiquevendeen.fr\/?page_id=238\" data-type=\"page\" data-id=\"238\">l&rsquo;astrophotographie <\/a> en d\u00e9veloppement gr\u00e2ce \u00e0 la sensibilit\u00e9 des capteurs CMOS r\u00e9cents.<\/li>\n\n\n\n<li><strong>Objectif<\/strong> : Combiner les avantages de l\u2019observation visuelle (imm\u00e9diatet\u00e9, plaisir de \u00ab regarder le ciel \u00bb) et de l\u2019astrophotographie (sensibilit\u00e9 accrue, d\u00e9tails, couleurs).<\/li>\n\n\n\n<li><strong>Mode de fonctionnement<\/strong> :\n<ol class=\"wp-block-list\">\n<li>La cam\u00e9ra prend une s\u00e9rie d\u2019images courtes d\u2019un objet c\u00e9leste.<\/li>\n\n\n\n<li>Un logiciel aligne et empile ces images progressivement pour renforcer le signal (luminosit\u00e9, d\u00e9tails) et r\u00e9duire le bruit.<\/li>\n\n\n\n<li>Le r\u00e9sultat est affich\u00e9 en quasi-temps r\u00e9el sur un \u00e9cran (ordinateur, tablette).<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>L&rsquo;EAA peut \u00eatre r\u00e9alis\u00e9 avec du mat\u00e9riel <a href=\"https:\/\/centreastronomiquevendeen.fr\/?page_id=238\" data-type=\"page\" data-id=\"238\">d&rsquo;astrophotographie<\/a>, le contraire n&rsquo;\u00e9tant pas forc\u00e9ment vrai surtout pour le mat\u00e9riel \u00ab\u00a0d&rsquo;entr\u00e9e de gamme\u00a0\u00bb&#8230;<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd2d <strong>Diff\u00e9rences cl\u00e9s avec d\u2019autres techniques<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"947\" height=\"499\" src=\"https:\/\/centreastronomiquevendeen.fr\/wp-content\/uploads\/2025\/10\/Comparo-EAA-2.png\" alt=\"\" class=\"wp-image-1116\" style=\"width:705px;height:auto\" srcset=\"https:\/\/centreastronomiquevendeen.fr\/wp-content\/uploads\/2025\/10\/Comparo-EAA-2.png 947w, https:\/\/centreastronomiquevendeen.fr\/wp-content\/uploads\/2025\/10\/Comparo-EAA-2-300x158.png 300w, https:\/\/centreastronomiquevendeen.fr\/wp-content\/uploads\/2025\/10\/Comparo-EAA-2-768x405.png 768w\" sizes=\"auto, (max-width: 947px) 100vw, 947px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd2d <a href=\"https:\/\/centreastronomiquevendeen.fr\/?page_id=802\" data-type=\"page\" data-id=\"802\">Voir T\u00e9lescopes intelligents<\/a><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcf7 <a href=\"https:\/\/centreastronomiquevendeen.fr\/?page_id=812\" data-type=\"page\" data-id=\"812\">Voir EAA Avec un ASIAIR ou PC<\/a><\/h2>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udcbb Qu\u2019est-ce que le \u00ab\u00a0visuel assist\u00e9\u00a0\u00bb (EAA) ? \ud83d\udd2d Diff\u00e9rences cl\u00e9s avec d\u2019autres techniques \ud83d\udd2d Voir T\u00e9lescopes intelligents \ud83d\udcf7 Voir EAA Avec un ASIAIR ou PC<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-746","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=\/wp\/v2\/pages\/746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=746"}],"version-history":[{"count":38,"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=\/wp\/v2\/pages\/746\/revisions"}],"predecessor-version":[{"id":1128,"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=\/wp\/v2\/pages\/746\/revisions\/1128"}],"wp:attachment":[{"href":"https:\/\/centreastronomiquevendeen.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}