{"id":11803,"date":"2025-08-29T08:00:00","date_gmt":"2025-08-29T06:00:00","guid":{"rendered":"https:\/\/www.blog.neoprog.eu\/?p=11803"},"modified":"2025-08-23T11:46:19","modified_gmt":"2025-08-23T09:46:19","slug":"hoo","status":"publish","type":"post","link":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/","title":{"rendered":"Hoo !"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1016\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg\" alt=\"\" class=\"wp-image-11804\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe-300x298.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe-150x150.jpg 150w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe-768x762.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe-302x300.jpg 302w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">N\u00e9buleuse de la Trompe d&rsquo;\u00e9l\u00e9phant<\/figcaption><\/figure>\n\n\n\n<p>Chez les photographes le d\u00e9bat entre les partisans de la retouche et ceux du d\u00e9veloppement fait rage depuis l\u2019av\u00e8nement du num\u00e9rique.&nbsp;<\/p>\n\n\n\n<p>O\u00f9 s\u2019arr\u00eate la photographie et o\u00f9 commence l\u2019image de synth\u00e8se ? Avec l\u2019arriv\u00e9e de l\u2019IA g\u00e9n\u00e9rative, m\u00eame les fervents adeptes de Photoshop commencent \u00e0 poser des limites \u00e9thiques.&nbsp;<\/p>\n\n\n\n<p>Il est possible d\u2019effacer des personnages, d\u2019enlever des objets disgracieux, de transformer une journ\u00e9e ensoleill\u00e9e en matin brumeux, de remplacer un ciel par un autre, d\u2019inventer une partie du clich\u00e9, voire de fabriquer de toute pi\u00e8ces un paysage gr\u00e2ce \u00e0 l\u2019IA g\u00e9n\u00e9rative.&nbsp;<\/p>\n\n\n\n<p>Alors \u00e0 quel moment une photo n\u2019est plus qu\u2019une image num\u00e9rique ? Je n\u2019ai pas la r\u00e9ponse \u00e0 cette question. Personnellement, j\u2019use le moins possible de ces traitements qui substituent une r\u00e9alit\u00e9 \u00e0 une autre plus virtuelle. Je n\u2019utilise pas Photoshop mais Lightroom et je n\u2019utilise l\u2019IA que pour r\u00e9duire le bruit et supprimer de tous petits d\u00e9tails que je n\u2019avais pas not\u00e9 en r\u00e9alisant le clich\u00e9. Mais \u00e7a c\u2019est en photo.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"819\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Sorcier.jpg\" alt=\"\" class=\"wp-image-11805\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Sorcier.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Sorcier-300x240.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Sorcier-768x614.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Sorcier-375x300.jpg 375w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">N\u00e9buleuse du Sorcier<\/figcaption><\/figure>\n\n\n\n<p>En astro photo, tout est diff\u00e9rent. Car qu\u2019est-ce qu\u2019une image en astronomie ? Un signal extr\u00eamement faible, souvent imperceptible par l\u2019\u0153il humain, amplifi\u00e9 par un instrument et une cam\u00e9ra puis d\u00e9lin\u00e9aris\u00e9 dans un logiciel pour transformer des fr\u00e9quences presque invisibles en couleurs.&nbsp;<\/p>\n\n\n\n<p>Des fr\u00e9quences invisibles comme l\u2019infrarouge ou l\u2019ultraviolet que les cam\u00e9ras captent et auquel on attribue arbitrairement des couleurs. Lorsque vous regardez une image du t\u00e9lescope Hubble ou James Web, vous ne voyez pas la r\u00e9alit\u00e9, vous voyez diff\u00e9rentes longueurs d\u2019ondes color\u00e9es puis additionn\u00e9es pour fabriquer une photographie.<\/p>\n\n\n\n<p>Par exemple James Web ne voit que dans l\u2019infrarouge, autant dire que ses couleurs ne refl\u00e8tent jamais la r\u00e9alit\u00e9.&nbsp;<\/p>\n\n\n\n<p>En astronomie, certains utilisent des filtres qui ne laissent passer que certaines longueurs d\u2019ondes ou bloquent certains rayonnements. L\u2019image obtenue est in\u00e9vitablement biais\u00e9e par rapport \u00e0 la r\u00e9alit\u00e9.<\/p>\n\n\n\n<p>J\u2019ai commenc\u00e9 la photographie astro avec un appareil Nikon non d\u00e9filtr\u00e9, c\u2019est \u00e0 dire dont le capteur bloque une partie de l\u2019infrarouge, comme tous les bo\u00eetiers photos grand public. Ensuite j\u2019ai utilis\u00e9 une cam\u00e9ra qui capte tout le spectre, visible et invisible, augmentant consid\u00e9rablement la sensibilit\u00e9 de mon setup. Puis j\u2019ai ajout\u00e9 un filtre UV\/IR Cut pour supprimer les ultraviolets et les infrarouges des \u00e9clairages urbains qui polluent les images. Enfin j\u2019ai utilis\u00e9 un filtre tri bandes qui ne laisse passer que des plages \u00e9troites de longueur d\u2019onde, hydrog\u00e8ne, oxyg\u00e8ne, souffre. Mes photos ne refl\u00e9taient plus vraiment la r\u00e9alit\u00e9 mais avaient gagn\u00e9 en nettet\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"819\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Dumbbell.jpg\" alt=\"\" class=\"wp-image-11806\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Dumbbell.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Dumbbell-300x240.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Dumbbell-768x614.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Dumbbell-375x300.jpg 375w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">N\u00e9buleuse Dumbbell<\/figcaption><\/figure>\n\n\n\n<p>Il y a peu j\u2019ai publi\u00e9 une photo de la n\u00e9buleuse de la Trompe d\u2019El\u00e9phant et un de mes mentors m\u2019a conseill\u00e9 de la traiter en HOO, c\u2019est \u00e0 dire avec les longueurs d\u2019onde de l\u2019hydrog\u00e8ne et l\u2019oxyg\u00e8ne.&nbsp;<\/p>\n\n\n\n<p>Oui mais comment ? Et quel int\u00e9r\u00eat ? Il m\u2019a envoy\u00e9 un tutoriel bas\u00e9 sur le logiciel Pixinsight et j\u2019ai essay\u00e9. La <a href=\"https:\/\/youtu.be\/Grdbmt4aTF4\">vid\u00e9o<\/a> dure plus d\u2019une heure et contient plein de concepts qui sont loin d\u2019\u00eatre \u00e9vidents. Il m\u2019a fallu deux visionnages avec de multiples arr\u00eats sur images et quelques notes pour comprendre l\u2019id\u00e9e.<\/p>\n\n\n\n<p>Le principe est d\u2019attribuer une couleur, rouge, vert ou bleu, \u00e0 une une longueur d\u2019onde particuli\u00e8re. Rouge pour l\u2019hydrog\u00e8ne, vert et bleu pour l\u2019oxyg\u00e8ne. Ensuite on isole ces couleurs avec des masques pour les traiter de mani\u00e8re ind\u00e9pendante pour enfin tout assembler pour fabriquer une image.<\/p>\n\n\n\n<p>En r\u00e9alit\u00e9 c\u2019est un peu plus compliqu\u00e9. En astro photographie, on va tout d\u2019abord \u00e9tirer l\u2019histogramme des lumi\u00e8res pour amplifier certaines parties et en att\u00e9nuer d\u2019autres. On va \u00e9galement s\u00e9parer les \u00e9toiles de l\u2019objet photographi\u00e9 pour les traiter ind\u00e9pendamment. Souvent on choisit de r\u00e9duire le nombre d\u2019\u00e9toiles. On assombrit le fond du ciel pour \u00e9viter d\u2019obtenir une vo\u00fbte c\u00e9leste grise. Bref on bidouille pendant des heures.<\/p>\n\n\n\n<p>\u00c0 la fin que reste-il de la r\u00e9alit\u00e9 ? Nous avons filtr\u00e9 les fr\u00e9quences, amplifi\u00e9 la lumi\u00e8re, enlev\u00e9 les \u00e9toiles, assombri le ciel, attribu\u00e9 des couleurs arbitraires \u00e0 certaines fr\u00e9quences, rehauss\u00e9 des couleurs, estomp\u00e9 d\u2019autres, supprim\u00e9 des \u00e9toiles, ajout\u00e9 du contraste, r\u00e9duit le bruit et fabriqu\u00e9 une photographie avec tous ces \u00e9l\u00e9ments additionn\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"819\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Cocoon.jpg\" alt=\"\" class=\"wp-image-11807\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Cocoon.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Cocoon-300x240.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Cocoon-768x614.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Cocoon-375x300.jpg 375w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">N\u00e9buleuse du Cocon<\/figcaption><\/figure>\n\n\n\n<p>Certains astronomes amateurs s\u2019insurgent \u00e0 raison contre ces pratiques. Car l\u2019information qui pourrait servir \u00e0 la recherche dispara\u00eet lors du traitement de la photographie. Si on n\u2019utilise pas des filtres \u00e9talonn\u00e9s, des cam\u00e9ras sp\u00e9cifiques et des traitements non destructifs, l\u2019image n\u2019est plus exploitable pour la science.<\/p>\n\n\n\n<p>Personnellement, je fais des photographies astro pour la beaut\u00e9 de l\u2019image, pas pour la science. Et le traitement HOO m\u2019offre une toute nouvelle palette de couleurs pour composer des images spectaculaires m\u00eame si elles sont peu scientifiques.&nbsp;<\/p>\n\n\n\n<p>Un jour je changerais peut-\u00eatre d\u2019avis, j\u2019utiliserais une cam\u00e9ra monochrome et des filtres \u00e9talonn\u00e9s. Mais pour l\u2019instant, je me fais juste plaisir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le principe est d\u2019attribuer une couleur, rouge, vert ou bleu, \u00e0 une une longueur d\u2019onde particuli\u00e8re. Rouge pour l\u2019hydrog\u00e8ne, vert et bleu pour l\u2019oxyg\u00e8ne. <a href=\"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/\">Continuer la lecture <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":11804,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[2810,7],"tags":[185,3593,875,229],"class_list":["post-11803","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-astro","category-photo","tag-astronomie","tag-hoo","tag-photographie","tag-traitement","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hoo ! - Le Blog du N\u00e9oprog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hoo ! - Le Blog du N\u00e9oprog\" \/>\n<meta property=\"og:description\" content=\"Le principe est d\u2019attribuer une couleur, rouge, vert ou bleu, \u00e0 une une longueur d\u2019onde particuli\u00e8re. Rouge pour l\u2019hydrog\u00e8ne, vert et bleu pour l\u2019oxyg\u00e8ne. Continuer la lecture &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/\" \/>\n<meta property=\"og:site_name\" content=\"Le Blog du N\u00e9oprog\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-29T06:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1016\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Neoprog\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Le_Brun_JC\" \/>\n<meta name=\"twitter:site\" content=\"@Le_Brun_JC\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Neoprog\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/\"},\"author\":{\"name\":\"Neoprog\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#\\\/schema\\\/person\\\/47c594bf12736b172b772f0f02bcf511\"},\"headline\":\"Hoo !\",\"datePublished\":\"2025-08-29T06:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/\"},\"wordCount\":928,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#\\\/schema\\\/person\\\/47c594bf12736b172b772f0f02bcf511\"},\"image\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Trompe.jpg\",\"keywords\":[\"astronomie\",\"HOO\",\"photographie\",\"traitement\"],\"articleSection\":[\"Astro\",\"Photo\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/\",\"url\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/\",\"name\":\"Hoo ! - Le Blog du N\u00e9oprog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Trompe.jpg\",\"datePublished\":\"2025-08-29T06:00:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Trompe.jpg\",\"contentUrl\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Trompe.jpg\",\"width\":1024,\"height\":1016},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2025\\\/08\\\/29\\\/hoo\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hoo !\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#website\",\"url\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/\",\"name\":\"Le Blog du N\u00e9oprog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#\\\/schema\\\/person\\\/47c594bf12736b172b772f0f02bcf511\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#\\\/schema\\\/person\\\/47c594bf12736b172b772f0f02bcf511\",\"name\":\"Neoprog\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2022\\\/09\\\/autoportrait-2.jpg\",\"url\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2022\\\/09\\\/autoportrait-2.jpg\",\"contentUrl\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2022\\\/09\\\/autoportrait-2.jpg\",\"width\":1024,\"height\":681,\"caption\":\"Neoprog\"},\"logo\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/wp-content\\\/uploads\\\/2022\\\/09\\\/autoportrait-2.jpg\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hoo ! - Le Blog du N\u00e9oprog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/","og_locale":"fr_FR","og_type":"article","og_title":"Hoo ! - Le Blog du N\u00e9oprog","og_description":"Le principe est d\u2019attribuer une couleur, rouge, vert ou bleu, \u00e0 une une longueur d\u2019onde particuli\u00e8re. Rouge pour l\u2019hydrog\u00e8ne, vert et bleu pour l\u2019oxyg\u00e8ne. Continuer la lecture &rarr;","og_url":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/","og_site_name":"Le Blog du N\u00e9oprog","article_published_time":"2025-08-29T06:00:00+00:00","og_image":[{"width":1024,"height":1016,"url":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg","type":"image\/jpeg"}],"author":"Neoprog","twitter_card":"summary_large_image","twitter_creator":"@Le_Brun_JC","twitter_site":"@Le_Brun_JC","twitter_misc":{"\u00c9crit par":"Neoprog","Dur\u00e9e de lecture estim\u00e9e":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#article","isPartOf":{"@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/"},"author":{"name":"Neoprog","@id":"https:\/\/www.blog.neoprog.eu\/#\/schema\/person\/47c594bf12736b172b772f0f02bcf511"},"headline":"Hoo !","datePublished":"2025-08-29T06:00:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/"},"wordCount":928,"commentCount":0,"publisher":{"@id":"https:\/\/www.blog.neoprog.eu\/#\/schema\/person\/47c594bf12736b172b772f0f02bcf511"},"image":{"@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#primaryimage"},"thumbnailUrl":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg","keywords":["astronomie","HOO","photographie","traitement"],"articleSection":["Astro","Photo"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/","url":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/","name":"Hoo ! - Le Blog du N\u00e9oprog","isPartOf":{"@id":"https:\/\/www.blog.neoprog.eu\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#primaryimage"},"image":{"@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#primaryimage"},"thumbnailUrl":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg","datePublished":"2025-08-29T06:00:00+00:00","breadcrumb":{"@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#primaryimage","url":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg","contentUrl":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2025\/08\/Trompe.jpg","width":1024,"height":1016},{"@type":"BreadcrumbList","@id":"https:\/\/www.blog.neoprog.eu\/index.php\/2025\/08\/29\/hoo\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.blog.neoprog.eu\/"},{"@type":"ListItem","position":2,"name":"Hoo !"}]},{"@type":"WebSite","@id":"https:\/\/www.blog.neoprog.eu\/#website","url":"https:\/\/www.blog.neoprog.eu\/","name":"Le Blog du N\u00e9oprog","description":"","publisher":{"@id":"https:\/\/www.blog.neoprog.eu\/#\/schema\/person\/47c594bf12736b172b772f0f02bcf511"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.blog.neoprog.eu\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":["Person","Organization"],"@id":"https:\/\/www.blog.neoprog.eu\/#\/schema\/person\/47c594bf12736b172b772f0f02bcf511","name":"Neoprog","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2022\/09\/autoportrait-2.jpg","url":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2022\/09\/autoportrait-2.jpg","contentUrl":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2022\/09\/autoportrait-2.jpg","width":1024,"height":681,"caption":"Neoprog"},"logo":{"@id":"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2022\/09\/autoportrait-2.jpg"}}]}},"_links":{"self":[{"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/posts\/11803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/comments?post=11803"}],"version-history":[{"count":1,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/posts\/11803\/revisions"}],"predecessor-version":[{"id":11808,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/posts\/11803\/revisions\/11808"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/media\/11804"}],"wp:attachment":[{"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/media?parent=11803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/categories?post=11803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.blog.neoprog.eu\/index.php\/wp-json\/wp\/v2\/tags?post=11803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}