{"id":8003,"date":"2005-07-04T23:10:58","date_gmt":"2005-07-04T23:10:58","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/la-nebuleuse-m27-dumbel\/"},"modified":"2025-06-19T18:48:14","modified_gmt":"2025-06-19T16:48:14","slug":"la-nebuleuse-m27-dumbbell","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/la-nebuleuse-m27-dumbbell\/","title":{"rendered":"La N\u00e9buleuse M27 \u00ab\u00a0Dumbbell\u00a0\u00bb"},"content":{"rendered":"<p>Auteur: Vincent Van Campenhout (vincent.van@skynet.be)<\/p>\n<p>Salut \u00e0 tous,<\/p>\n<p>Voici une image N\/B et en couleur de la N\u00e9buleuse Dumbbell (M27) prise avec la lunette ED80 SkyWatcher + cam\u00e9ra Audine + roue \u00e0 filtre SBIG<br \/>\nsur ma monture M100B depuis mon abri pendant la soir\u00e9e du samedi 18 juin vers +\/- 2h30 en compagnie d&rsquo;Olivier Schreurs \u00e0 Desni\u00e9.<br \/>\nLe ciel, cette nuit-l\u00e0, \u00e9tait bien pur et sans nuage mais la turbulence \u00e9tait tr\u00e8s mauvaise. Vent et taux humidit\u00e9 presque nul. Temp\u00e9rature +\/- 20\u00b0<br \/>\nMise au point assez difficile \u00e0 faire sur M13 avec le C9. Pas de r\u00e9sultat \u00e0 vous pr\u00e9senter de celui-ci.<br \/>\nDommage, ce sera pour une prochaine fois&#8230;.<\/p>\n<p>Traitement des images de M27 avec le logiciel Prism V5 et 6 : <\/p>\n<p>1. Suppression du noir\/dark m\u00e9dian (20 images brutes) de chaque image LRGB brutes.<br \/>\n2. Compositage m\u00e9dian de 7 images brutes de 40 sec dans chaque couleur RGB ainsi que 12 images brutes pour la luminance (L), elle aussi de 40 sec.<br \/>\n3. R\u00e9glage des balances contraste\/luminosit\u00e9 pour la LRGB + l\u00e9ger masque flou sur la luminance avant l&rsquo;assemblage des 4 plans LRGB.<\/p>\n<p>Temps de pose : L(480sec),R(280sec),G(280sec), B(280sec)<br \/>\n                          Total = 1320 sec soit 22 min<\/p>\n<p>Les commentaires sont les bienvenus&#8230;<\/p>\n<p>Vincent et Olivier S.<\/p>\n<p>Image de M27 en N\/B<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/12_20050704-m27BN.jpg\" data-lbwps-width=\"733\" data-lbwps-height=\"502\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/12_20050704-m27BN-300x205.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/12_20050704-m27BN-300x205.jpg\" alt=\"\" width=\"300\" height=\"205\" \/><\/a><\/p>\n<p>Image de M27 en couleur<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/12_20050704-m27LRGB2trt2.jpg\" data-lbwps-width=\"725\" data-lbwps-height=\"499\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/12_20050704-m27LRGB2trt2-300x206.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/12_20050704-m27LRGB2trt2-300x206.jpg\" alt=\"\" width=\"300\" height=\"206\" \/><\/a><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;8003&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;10&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Veuillez voter&quot;,&quot;legend&quot;:&quot;0\\\/10 - (0 vote)&quot;,&quot;size&quot;:&quot;18&quot;,&quot;title&quot;:&quot;La N\u00e9buleuse M27 \\u0026quot;Dumbbell\\u0026quot;&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"6\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"7\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"8\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"9\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"10\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 18px; height: 18px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 14.4px;\">\n            <span class=\"kksr-muted\">Veuillez voter<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Auteur: Vincent Van Campenhout (vincent.van@skynet.be) Salut \u00e0 tous, Voici une image N\/B et en couleur de la N\u00e9buleuse Dumbbell (M27) prise avec la lunette ED80 SkyWatcher + cam\u00e9ra Audine + roue \u00e0 filtre SBIG sur ma monture M100B depuis mon abri pendant la soir\u00e9e du samedi 18 juin vers +\/- 2h30 en compagnie d&rsquo;Olivier Schreurs [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-8003","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8003","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=8003"}],"version-history":[{"count":3,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8003\/revisions"}],"predecessor-version":[{"id":15206,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8003\/revisions\/15206"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=8003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=8003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=8003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}