{"id":9547,"date":"2014-02-09T11:14:28","date_gmt":"2014-02-09T11:14:28","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/m42-encore\/"},"modified":"2025-06-23T11:30:27","modified_gmt":"2025-06-23T09:30:27","slug":"m42-encore","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/m42-encore\/","title":{"rendered":"M42 Encore\u2026"},"content":{"rendered":"<p>Bonjour,<br \/>\nComme je n\u2019\u00e9tais pas satisfait de ma pr\u00e9c\u00e9dente version que je trouvais beaucoup trop bruit\u00e9e (voir le post <a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/la-grande-nebuleuse-dorion-m42\/\" target=\"_BLANK\">du 15 d\u00e9cembre 2013<\/a>), j\u2019ai d\u00e9cid\u00e9 de remettre le couvert ce 02 f\u00e9vrier en allongeant le temps de pose global. J\u2019ai aussi choisi des poses unitaires de 5 minutes au lieu de 3, mais au vu des brutes, j\u2019\u00e9tais pour le moins sceptique \u2013 normal quand on observe \u00e0 La Fosse me direz-vous ! \u2013 quant au r\u00e9sultat, mais celui-ci me plait.<br \/>\nLes acquisitions ne furent pourtant pas simples, m\u00e9t\u00e9o belge oblige, et si le ciel \u00e9tait limpide avec la Voie Lact\u00e9e hivernale bien visible, le givre se d\u00e9posait abondamment sur les optiques m\u2019obligeant \u00e0 jouer constamment du s\u00e8che-cheveux.<br \/>\nAu final donc, 48 poses de 5 minutes \u00e0 400 ISO avec l\u2019APN Canon 350D Baader sur la lunette Televue NP101IS avec r\u00e9ducteur 0,8 plus 1 pose unique de 3 minutes, une de 30 secondes, 1 de 15 et enfin 1 de 5 secondes pour d\u00e9saturer le c\u0153ur.<br \/>\nPr\u00e9traitement classique sous IRIS, r\u00e9glages courbes et niveaux sous Photoshop, calques et finalisation sous PSP7.<\/p>\n<p>Une brute (\u00e0 50%) pour montrer \u00e0 quoi \u00e7a ressemble. Vous pouvez constater qu&rsquo;il n&rsquo;est nullement besoin d&rsquo;utiliser un filtre CLS ou autre pour obtenir un bon r\u00e9sultat final:<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-Image_5888.jpg\" data-lbwps-width=\"1728\" data-lbwps-height=\"1152\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-Image_5888-300x200.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-Image_5888-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" \/><\/a><\/p>\n<p>Le champ entier pr\u00e9sent\u00e9 \u00e0 50% de la taille d&rsquo;acquisition:<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-M42-M43-NGC1977-reduit.jpg\" data-lbwps-width=\"1729\" data-lbwps-height=\"1151\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-M42-M43-NGC1977-reduit-300x200.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-M42-M43-NGC1977-reduit-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" \/><\/a><\/p>\n<p>Un crop en taille r\u00e9elle centr\u00e9 sur la Grande N\u00e9buleuse d&rsquo;Orion accompagn\u00e9e du \u00ab\u00a0Running Man\u00a0\u00bb:<\/p>\n<p><a href=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-M42-M43-NGC1977-crop.jpg\" data-lbwps-width=\"1372\" data-lbwps-height=\"1952\" data-lbwps-srcsmall=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-M42-M43-NGC1977-crop-211x300.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/groupeastronomiespa.be\/astrogas\/wp-content\/uploads\/2025\/06\/10_20140209-M42-M43-NGC1977-crop-211x300.jpg\" alt=\"\" width=\"211\" height=\"300\" \/><\/a><\/p>\n<p>J-Luc<\/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;9547&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;M42 Encore\u2026&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>Bonjour, Comme je n\u2019\u00e9tais pas satisfait de ma pr\u00e9c\u00e9dente version que je trouvais beaucoup trop bruit\u00e9e (voir le post du 15 d\u00e9cembre 2013), j\u2019ai d\u00e9cid\u00e9 de remettre le couvert ce 02 f\u00e9vrier en allongeant le temps de pose global. J\u2019ai aussi choisi des poses unitaires de 5 minutes au lieu de 3, mais au vu [&hellip;]<\/p>\n","protected":false},"author":14,"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-9547","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9547","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\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=9547"}],"version-history":[{"count":3,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9547\/revisions"}],"predecessor-version":[{"id":15450,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9547\/revisions\/15450"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=9547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=9547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=9547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}