{"id":4260,"date":"2020-02-19T07:28:57","date_gmt":"2020-02-19T06:28:57","guid":{"rendered":"http:\/\/www.arnaudom.fr\/wordpress\/?page_id=4260"},"modified":"2020-08-16T12:31:52","modified_gmt":"2020-08-16T10:31:52","slug":"ngc4631","status":"publish","type":"page","link":"http:\/\/www.arnaudom.fr\/wordpress\/ngc4631\/","title":{"rendered":"ngc4631"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4260\" class=\"elementor elementor-4260\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4d1470b9 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"4d1470b9\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5c78c7c8\" data-id=\"5c78c7c8\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4cad01a7 elementor-widget elementor-widget-heading\" data-id=\"4cad01a7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">La galaxie NGC 4631 dans les Chiens de Chasse<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5dc69387 elementor-widget elementor-widget-image\" data-id=\"5dc69387\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"650\" src=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631001.jpg\" class=\"attachment-large size-large wp-image-4262\" alt=\"\" srcset=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631001.jpg 1000w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631001-300x195.jpg 300w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631001-768x499.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218ef4e9 elementor-widget elementor-widget-heading\" data-id=\"218ef4e9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Astrom\u00e9trie sur le champ de l'image<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40286cc8 elementor-widget elementor-widget-image\" data-id=\"40286cc8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"650\" src=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631004.jpg\" class=\"attachment-large size-large wp-image-4263\" alt=\"\" srcset=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631004.jpg 1000w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631004-300x195.jpg 300w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631004-768x499.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5686844a elementor-widget elementor-widget-text-editor\" data-id=\"5686844a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p style=\"text-align: center;\"><strong><span style=\"color: #00cece;\">Newton TS Carbone 200\/800 + Monture EQ6 Pro + Canon EOS 450D d\u00e9filtr\u00e9 + Paracorr Televue + Filtre CLS<br \/>Autoguidage : chercheur 8&#215;50 + bague + Orion Starshoot Autoguider<br \/>24 poses de 5 minutes + 100 offset + 11 dark + 15 flat<\/span><\/strong><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a7161c0 elementor-widget elementor-widget-text-editor\" data-id=\"1a7161c0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">NGC 4631 est une galaxie situ\u00e9e dans la constellation des Chiens de Chasse et constitue une cible tr\u00e8s int\u00e9ressante pour les astronomes amateurs, aussi bien visuellement qu&rsquo;en imagerie. Elle semble pourtant \u00e9tonnament d\u00e9laiss\u00e9e, peut-\u00eatre \u00e0 cause de l&rsquo;absence de proximit\u00e9 d&rsquo;\u00e9toiles brillantes \u00e0 l&rsquo;endroit o\u00f9 elle se trouve. Son pointage n&rsquo;est pourtant plus probl\u00e9matique \u00e0 l&rsquo;heure de la g\u00e9n\u00e9ralisation des syst\u00e8mes Go-To&#8230; En visuel donc, c&rsquo;est une grande galaxie, brillante, qui est visible m\u00eame dans un t\u00e9lescope de diam\u00e8tre modeste, ce qui n&rsquo;est finalement pas le cas de tant de galaxies que cela. Elle est bien mieux visible qu&rsquo;un grand nombre de galaxies Messier ! En photographie, avec un champ assez grand comme celui d&rsquo;un APN, on se retrouve avec pas moins de 4 \u00ab\u00a0grandes\u00a0\u00bb galaxies visibles sur la photo&#8230; plus toutes les \u00ab\u00a0petites\u00a0\u00bb autres (cercl\u00e9es de bleu sur la photo) identifi\u00e9es par le script d&rsquo;astrom\u00e9trie de Pixinsight. D&rsquo;ailleurs si vous regardez bien la photo, vous pourrez peut-\u00eatre m\u00eame trouver une petite galaxie vue par la tranche qui est pass\u00e9e au travers du processus d&rsquo;astrom\u00e9trie &#8230; Il faudra que je me penche sur les cartes pour tenter de l&rsquo;identifier moi-m\u00eame !<\/span><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7843e3e3 elementor-widget elementor-widget-heading\" data-id=\"7843e3e3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Plan resserr\u00e9 sur la galaxie NGC 4631<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31c8e4f7 elementor-widget elementor-widget-image\" data-id=\"31c8e4f7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"601\" src=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631002.jpg\" class=\"attachment-large size-large wp-image-4265\" alt=\"\" srcset=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631002.jpg 1000w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631002-300x180.jpg 300w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631002-768x462.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e0c3056 elementor-widget elementor-widget-heading\" data-id=\"e0c3056\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">NGC 4631 et NGC 4627<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ae414e elementor-widget elementor-widget-image\" data-id=\"8ae414e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"572\" src=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631006.jpg\" class=\"attachment-large size-large wp-image-4266\" alt=\"\" srcset=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631006.jpg 1000w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631006-300x172.jpg 300w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631006-768x439.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d879d1 elementor-widget elementor-widget-text-editor\" data-id=\"4d879d1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Pour en revenir sur NGC 4631 elle-m\u00eame, cette galaxie est surnomm\u00e9e la galaxie de la baleine \u00e0 cause de sa forme, et elle forme un couple avec la galaxie NGC 4627, proche d&rsquo;elle, avec laquelle elle se trouve en interaction.<\/span><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da85354 elementor-widget elementor-widget-heading\" data-id=\"da85354\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Plan resserr\u00e9 sur \"la crosse de hockey\"<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-304f83f elementor-widget elementor-widget-image\" data-id=\"304f83f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"579\" height=\"800\" src=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631003.jpg\" class=\"attachment-large size-large wp-image-4267\" alt=\"\" srcset=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631003.jpg 579w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631003-217x300.jpg 217w\" sizes=\"auto, (max-width: 579px) 100vw, 579px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23eb0c3 elementor-widget elementor-widget-heading\" data-id=\"23eb0c3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">NGC 4656 et NGC 4657<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4be508b elementor-widget elementor-widget-image\" data-id=\"4be508b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"746\" height=\"800\" src=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631005.jpg\" class=\"attachment-large size-large wp-image-4268\" alt=\"\" srcset=\"http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631005.jpg 746w, http:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2020\/02\/NGC4631005-280x300.jpg 280w\" sizes=\"auto, (max-width: 746px) 100vw, 746px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93e494e elementor-widget elementor-widget-text-editor\" data-id=\"93e494e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">A droite de l&rsquo;image on observe dans le m\u00eame champ un \u00e9trange objet, surnomm\u00e9 la \u00ab\u00a0crosse de hockey\u00a0\u00bb par les amateurs, et qui est en r\u00e9alit\u00e9 form\u00e9 lui aussi d&rsquo;un autre couple de galaxies en interaction, NGC 4656 et NGC 4657. Ces deux galaxies forment ce dr\u00f4le d&rsquo;objet, NGC 4656 dessinant le \u00ab\u00a0manche\u00a0\u00bb de la crosse et NGC 4657 la \u00ab\u00a0lame\u00a0\u00bb de la crosse. En conclusion, NGC 4631 est \u00e0 la fois un bel objet \u00e0 observer sans tarder et une cible particuli\u00e8rement int\u00e9ressante en photo puisqu&rsquo;elle nous offre deux couples de galaxies aux formes tr\u00e8s originales dans un m\u00eame champ d&rsquo;\u00e9toiles &#8230;<\/span><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53ad6382 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"53ad6382\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a href=\"http:\/\/www.arnaudom.fr\/wordpress\/profondgalaxies\" class=\"elementor-button-link elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-right\">\n\t\t\t\t\t\t\t\t\t<i class=\"fa fa-camera\" aria-hidden=\"true\"><\/i>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Retour \u00e0 la galerie<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>La galaxie NGC 4631 dans les Chiens de Chasse Astrom\u00e9trie sur le champ de l&rsquo;image Newton TS Carbone 200\/800 + Monture EQ6 Pro + Canon EOS 450D d\u00e9filtr\u00e9 + Paracorr Televue + Filtre CLSAutoguidage : chercheur 8&#215;50 + bague + Orion Starshoot Autoguider24 poses de 5 minutes + 100 offset + 11 dark + 15 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.arnaudom.fr\/wordpress\/ngc4631\/\"> <span class=\"screen-reader-text\">ngc4631<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-4260","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/4260","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=4260"}],"version-history":[{"count":5,"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/4260\/revisions"}],"predecessor-version":[{"id":5298,"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/4260\/revisions\/5298"}],"wp:attachment":[{"href":"http:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=4260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}