{"id":2692,"date":"2026-10-13T18:21:41","date_gmt":"2026-10-13T16:21:41","guid":{"rendered":"https:\/\/vega78astronomie.fr\/?p=2692"},"modified":"2026-10-13T18:21:41","modified_gmt":"2026-10-13T16:21:41","slug":"dans-le-cygne-ldn899-vdb131-et-132-ngc6914","status":"publish","type":"post","link":"https:\/\/vega78astronomie.fr\/index.php\/2026\/10\/13\/dans-le-cygne-ldn899-vdb131-et-132-ngc6914\/","title":{"rendered":"Dans le Cygne : LDN899, VdB131 et 132, NGC6914"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Nous sommes dans la constellation du Cygne, pr\u00e8s (visuellement) de l\u2019\u00e9toile centrale SADR o\u00f9 l&rsquo;on observe une concentration de n\u00e9buleuses sombres. Ceci dans le flot tumultueux des nu\u00e9es rougeoyantes d\u2019hydrog\u00e8ne ionis\u00e9 par les puissants ultraviolets d\u2019une jeune \u00e9toile hyperg\u00e9ante Cygnus OB2#12, hors champ, de faible magnitude apparente (11,4), mais qui a un diam\u00e8tre 250 fois sup\u00e9rieur \u00e0 notre Soleil et est 1,6 million de fois plus lumineux que lui !<br>La n\u00e9buleuse sombre centrale est LDN899, \u00e0 l&rsquo;origine d&rsquo;\u00e9toiles jeunes et massives de type B qui illuminent de leur couleur bleue des n\u00e9buleuses par r\u00e9flexion : NGC6914 au nord (\u00e0 gauche sur l&rsquo;image), VdB132 et VdB131 dans l&rsquo;ordre en allant vers le sud.<br><br>Plus de d\u00e9tails et conditions d\u00e9taill\u00e9es de prise de vue disponibles sur ce <a href=\"https:\/\/app.astrobin.com\/i\/78t1ww\">lien Astrobin<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"http:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-1024x572.jpg\" alt=\"\" class=\"wp-image-2693\" srcset=\"https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-1024x572.jpg 1024w, https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-300x168.jpg 300w, https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-768x429.jpg 768w, https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-100x56.jpg 100w, https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-1536x858.jpg 1536w, https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-2048x1144.jpg 2048w, https:\/\/vega78astronomie.fr\/wp-content\/uploads\/2026\/10\/NGC6914_VdB131_LV-sep2026-200x112.jpg 200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>Photo Lo\u00efck Viger. Nord \u00e0 gauche de l&rsquo;image<\/em>.<em> 9h35&prime; de pose totale<\/em><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Nous sommes dans la constellation du Cygne, pr\u00e8s (visuellement) de l\u2019\u00e9toile centrale SADR o\u00f9 l&rsquo;on observe une concentration de n\u00e9buleuses sombres. Ceci dans le flot tumultueux des nu\u00e9es rougeoyantes d\u2019hydrog\u00e8ne ionis\u00e9 par les puissants ultraviolets d\u2019une jeune \u00e9toile hyperg\u00e9ante Cygnus OB2#12, hors champ, de faible magnitude apparente (11,4), mais qui a un diam\u00e8tre 250 fois [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[30,144,145],"class_list":["post-2692","post","type-post","status-publish","format-standard","hentry","category-ciel-profond","tag-cygne","tag-ldn899","tag-ngc6914"],"_links":{"self":[{"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/posts\/2692","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/comments?post=2692"}],"version-history":[{"count":3,"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/posts\/2692\/revisions"}],"predecessor-version":[{"id":2697,"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/posts\/2692\/revisions\/2697"}],"wp:attachment":[{"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2692"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/categories?post=2692"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vega78astronomie.fr\/index.php\/wp-json\/wp\/v2\/tags?post=2692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}