{"id":2625,"date":"2024-09-14T17:06:59","date_gmt":"2024-09-14T15:06:59","guid":{"rendered":"http:\/\/boks-meteo-lancrans.fr\/?p=2625"},"modified":"2024-09-14T17:08:32","modified_gmt":"2024-09-14T15:08:32","slug":"m13-le-grand-amas-dhercule","status":"publish","type":"post","link":"http:\/\/boks-meteo-lancrans.fr\/index.php\/2024\/09\/14\/m13-le-grand-amas-dhercule\/","title":{"rendered":"M13 &#8211; Le grand amas d&rsquo;Hercule"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2625\" class=\"elementor elementor-2625\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e49b1a e-flex e-con-boxed e-con e-parent\" data-id=\"2e49b1a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-389e92d e-con-full e-flex e-con e-child\" data-id=\"389e92d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-27f24c3 elementor-widget elementor-widget-image\" data-id=\"27f24c3\" data-element_type=\"widget\" data-e-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\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"594\" height=\"468\" src=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/08\/M13.jpg\" class=\"attachment-large size-large wp-image-2630\" alt=\"\" srcset=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/08\/M13.jpg 594w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/08\/M13-300x236.jpg 300w\" sizes=\"(max-width: 594px) 100vw, 594px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e9df61f e-con-full e-flex e-con e-child\" data-id=\"e9df61f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d910e46 elementor-widget elementor-widget-text-editor\" data-id=\"d910e46\" data-element_type=\"widget\" data-e-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\t<p>M13 ou\u00a0Messier 13 aussi catalogu\u00e9\u00a0NGC 6205\u00a0et tr\u00e8s souvent appel\u00e9 le\u00a0Grand Amas d&rsquo;Hercule, est un\u00a0amas globulaire <a href=\"http:\/\/boks-meteo-lancrans.fr\/index.php\/2024\/09\/14\/quest-un-amas-globulaire\/\">Qu\u2019est-ce qu\u2019un amas globulaire ?<\/a>\u00a0situ\u00e9 dans la\u00a0constellation\u00a0d&rsquo;Hercule. Il est parmi les objets les plus imposants du\u00a0catalogue Messier\u00a0et il a \u00e9t\u00e9 d\u00e9couvert par\u00a0Edmond Halley\u00a0en\u00a01714.\u00a0Charles Messier\u00a0a ajout\u00e9 cet amas dans son catalogue le\u00a0<time class=\"nowrap\" datetime=\"1764-06-01\" data-sort-value=\"1764-06-01\"><abbr class=\"abbr\" title=\"premier\">1<sup>er<\/sup><\/abbr>\u00a0juin 1764<\/time>.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e4be8a1 e-flex e-con-boxed e-con e-parent\" data-id=\"e4be8a1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-61c986e e-con-full e-flex e-con e-child\" data-id=\"61c986e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-683ce81 elementor-widget elementor-widget-heading\" data-id=\"683ce81\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">O\u00f9 trouver M13<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a15bb81 elementor-widget elementor-widget-text-editor\" data-id=\"a15bb81\" data-element_type=\"widget\" data-e-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\t<p>M13 est accessible aux instruments en ville. Il est visible l&rsquo;\u00e9t\u00e9, en d\u00e9but de nuit, tr\u00e8s haut dans la partie Sud du ciel. Cependant, c\u2019est sous un ciel bien noir qu\u2019il montre ses plus beaux atours : il peut m\u00eame se rep\u00e9rer \u00e0 l\u2019\u0153il nu ! Pour le localiser, identifiez le quadrilat\u00e8re form\u00e9 par les quatre \u00e9toiles principales de la constellation d\u2019Hercule. Divisez alors en trois la distance qui relie \u03b7 (\u00eata) et \u03b6 (dz\u00eata) Hercule : notre cible se trouve au tiers sup\u00e9rieur.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8dfa5a1 e-con-full e-flex e-con e-child\" data-id=\"8dfa5a1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a013ce elementor-widget elementor-widget-image\" data-id=\"4a013ce\" data-element_type=\"widget\" data-e-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\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"530\" src=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/08\/Constellation-hercule-800x530.jpg\" class=\"attachment-bam-featured size-bam-featured wp-image-2634\" alt=\"\" srcset=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/08\/Constellation-hercule-800x530.jpg 800w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/08\/Constellation-hercule-700x465.jpg 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f452e67 e-flex e-con-boxed e-con e-parent\" data-id=\"f452e67\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-0015044 e-con-full e-flex e-con e-child\" data-id=\"0015044\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c163e46 elementor-widget elementor-widget-image\" data-id=\"c163e46\" data-element_type=\"widget\" data-e-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\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"576\" src=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Radiotelescope-dArecibo-1024x576.jpg\" class=\"attachment-large size-large wp-image-2907\" alt=\"\" srcset=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Radiotelescope-dArecibo-1024x576.jpg 1024w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Radiotelescope-dArecibo-300x169.jpg 300w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Radiotelescope-dArecibo-768x432.jpg 768w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Radiotelescope-dArecibo-1536x864.jpg 1536w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Radiotelescope-dArecibo.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-830904d elementor-widget elementor-widget-heading\" data-id=\"830904d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le radiot\u00e9lescope d'Arecibo<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5d014f5 e-con-full e-flex e-con e-child\" data-id=\"5d014f5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae5b36e elementor-widget elementor-widget-heading\" data-id=\"ae5b36e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le message d'Arecibo<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e818a5b elementor-widget elementor-widget-text-editor\" data-id=\"e818a5b\" data-element_type=\"widget\" data-e-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\t<p>En 1974 la grande antenne du radiot\u00e9lescope d&rsquo;Arecibo, situ\u00e9 \u00e0 Porto Rica (Cara\u00efbes), a \u00e9t\u00e9 utilis\u00e9 comme antenne de transmission pour envoyer vers M13 un message \u00e0 l&rsquo;intention d&rsquo;une \u00e9ventuelle civilisation extraterrestre. Vu la distance de M13, le message mettra plus de 25&rsquo;000 ann\u00e9es-lum\u00e8re pour arriver.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c6f5f99 e-flex e-con-boxed e-con e-parent\" data-id=\"c6f5f99\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2fc8e55 e-con-full e-flex e-con e-child\" data-id=\"2fc8e55\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e34e3dc elementor-widget elementor-widget-image\" data-id=\"e34e3dc\" data-element_type=\"widget\" data-e-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\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"450\" src=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Arecibo_message.svg_.png\" class=\"attachment-large size-large wp-image-2911\" alt=\"\" srcset=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Arecibo_message.svg_.png 150w, http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/Arecibo_message.svg_-100x300.png 100w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-909fccf e-con-full e-flex e-con e-child\" data-id=\"909fccf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ecc91f6 elementor-widget elementor-widget-heading\" data-id=\"ecc91f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le message envoy\u00e9 vers M13<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7179aa6 elementor-widget elementor-widget-text-editor\" data-id=\"7179aa6\" data-element_type=\"widget\" data-e-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\t<p>Le&nbsp;message d&rsquo;Arecibo&nbsp;est un&nbsp;message&nbsp;radio&nbsp;de 1&nbsp;679&nbsp;<abbr class=\"abbr\" title=\"bits\">bits<\/abbr>&nbsp;\u00e9mis vers l&rsquo;espace&nbsp;le&nbsp;<time class=\"nowrap\" datetime=\"1974-11-16\" data-sort-value=\"1974-11-16\">16 novembre 1974<\/time>&nbsp;\u00e0 l&rsquo;occasion de la transformation du&nbsp;radiot\u00e9lescope d&rsquo;Arecibo. Il est envoy\u00e9 vers l&rsquo;amas globulaire&nbsp;M13.<\/p>\n<p>Le nombre 1&nbsp;679 est choisi parce qu&rsquo;il est&nbsp;semi-premier, c&rsquo;est-\u00e0-dire le produit de deux&nbsp;nombres premiers, et ne peut donc \u00eatre&nbsp;divis\u00e9&nbsp;qu&rsquo;en&nbsp;<span class=\"nowrap\">73&nbsp;lignes<\/span>&nbsp;et&nbsp;<span class=\"nowrap\">23&nbsp;colonnes<\/span>&nbsp;(ou vice-versa). Cela suppose que ceux qui pourraient le lire choisiront de l&rsquo;arranger comme un&nbsp;quadrilat\u00e8re. L&rsquo;information&nbsp;arrang\u00e9e de la premi\u00e8re fa\u00e7on ne pr\u00e9sente aucun sens alors que si elle est arrang\u00e9e de la seconde fa\u00e7on, l&rsquo;image contient des informations \u00e0 propos de la&nbsp;Terre&nbsp;et de l&rsquo;humanit\u00e9. Si on lit de gauche \u00e0 droite, elle montre les&nbsp;nombres&nbsp;de un \u00e0 dix, les&nbsp;num\u00e9ros atomiques&nbsp;de l&rsquo;hydrog\u00e8ne, du&nbsp;carbone, de l&rsquo;azote, de l&rsquo;oxyg\u00e8ne&nbsp;et du&nbsp;phosphore, les formules chimiques des&nbsp;sucres&nbsp;et&nbsp;bases&nbsp;dans les&nbsp;nucl\u00e9otides&nbsp;de l&rsquo;ADN, les nombres de nucl\u00e9otides dans l&rsquo;ADN, sa structure en&nbsp;double h\u00e9lice, un croquis de l&rsquo;\u00eatre humain&nbsp;et sa&nbsp;taille, la&nbsp;population de la Terre, le&nbsp;Syst\u00e8me solaire&nbsp;et une image du radiot\u00e9lescope d&rsquo;Arecibo donnant son diam\u00e8tre.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5a36ae8 e-flex e-con-boxed e-con e-parent\" data-id=\"5a36ae8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-146accf e-con-full e-flex e-con e-child\" data-id=\"146accf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e74bf5d elementor-widget elementor-widget-image\" data-id=\"e74bf5d\" data-element_type=\"widget\" data-e-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\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"987\" height=\"800\" src=\"http:\/\/boks-meteo-lancrans.fr\/wp-content\/uploads\/2024\/09\/M-13-lr-987x800.jpg\" class=\"attachment-bam-large size-bam-large wp-image-2918\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Photo du 04 Ao\u00fbt 2024<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-05f9969 e-con-full e-flex e-con e-child\" data-id=\"05f9969\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d485691 elementor-widget elementor-widget-text-editor\" data-id=\"d485691\" data-element_type=\"widget\" data-e-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\t<ul><li>Mat\u00e9riel :\u00a0Seestar 50 x 250 mm<\/li><li>Pose 10s sur 30mn<\/li><li>Logiciel :\u00a0S.I.R.I.L \u2013 GraXpert<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>M13 ou\u00a0Messier 13 aussi catalogu\u00e9\u00a0NGC 6205\u00a0et tr\u00e8s souvent appel\u00e9 le\u00a0Grand Amas d&rsquo;Hercule, est un\u00a0amas globulaire Qu\u2019est-ce qu\u2019un amas globulaire ?\u00a0situ\u00e9 dans la\u00a0constellation\u00a0d&rsquo;Hercule. Il est parmi &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2625","post","type-post","status-publish","format-standard","hentry","category-amas-globulaire"],"_links":{"self":[{"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/posts\/2625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/comments?post=2625"}],"version-history":[{"count":38,"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/posts\/2625\/revisions"}],"predecessor-version":[{"id":3526,"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/posts\/2625\/revisions\/3526"}],"wp:attachment":[{"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/categories?post=2625"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/boks-meteo-lancrans.fr\/index.php\/wp-json\/wp\/v2\/tags?post=2625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}