{"id":12552,"date":"2026-06-06T08:00:00","date_gmt":"2026-06-06T06:00:00","guid":{"rendered":"https:\/\/www.blog.neoprog.eu\/?p=12552"},"modified":"2026-05-30T16:31:16","modified_gmt":"2026-05-30T14:31:16","slug":"photographier-les-etoiles-lauto-guidage","status":"publish","type":"post","link":"https:\/\/www.blog.neoprog.eu\/index.php\/2026\/06\/06\/photographier-les-etoiles-lauto-guidage\/","title":{"rendered":"Photographier les \u00e9toiles &#8211; l&rsquo;auto guidage"},"content":{"rendered":"\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\/2026\/04\/Tete-de-cheval.jpg\" alt=\"\" class=\"wp-image-12558\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval-300x240.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval-768x614.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval-375x300.jpg 375w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nous avons vu dans le pr\u00e9c\u00e9dent article, que pour photographier les \u00e9toiles en compensant le mouvement de rotation de la terre, nous pouvions utiliser une monture \u00e9quatoriale. Cette monture va nous permettre, en fonction de sa qualit\u00e9, de la focale de votre objectif ou lunette et de votre aptitude \u00e0 bien la mettre en station, des photographies unitaires de 30 \u00e0 120 secondes. Ce qui est d\u00e9j\u00e0 pas mal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mais plus vos poses unitaires seront longues, plus vous aurez du signal sur vos photographies. Alors pour aller plus loin en astro photographie, une solution consiste \u00e0 \u00e9quiper votre Setup d&rsquo;un guidage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le guidage est souvent une cam\u00e9ra associ\u00e9e \u00e0 une lunette de courte focale et qui scrute les \u00e9toiles dans le m\u00eame axe que votre appareil photo. Cette cam\u00e9ra envoie la position des \u00e9toiles \u00e0 un ordinateur qui est capable de d\u00e9terminer si celles-ci bougent dans le champ de la lunette. Si c&rsquo;est le cas, l&rsquo;ordinateur envoie alors un message \u00e0 la monture \u00e9quatoriale pour effectuer une correction.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"853\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/tsl50-ag-autoguiding-kit-asi-120mini-1000-1024x853.jpg\" alt=\"\" class=\"wp-image-12556\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/tsl50-ag-autoguiding-kit-asi-120mini-1000-1024x853.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/tsl50-ag-autoguiding-kit-asi-120mini-1000-300x250.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/tsl50-ag-autoguiding-kit-asi-120mini-1000-768x640.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/tsl50-ag-autoguiding-kit-asi-120mini-1000-360x300.jpg 360w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/tsl50-ag-autoguiding-kit-asi-120mini-1000.jpg 1440w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Cam\u00e9ra d&rsquo;auto guidage avec sa lunette<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Oui, \u00e7a devient compliqu\u00e9 et co\u00fbteux. Vous allez avoir besoin d&rsquo;une petite cam\u00e9ra astro, une lunette courte focale genre, d&rsquo;un ordinateur, de c\u00e2bles et bien entendu d&rsquo;une monture \u00e9quatoriale et d&rsquo;un appareil photo avec un objectif fix\u00e9 dessus, ou bien d&rsquo;un instrument tel une lunette ou bien un t\u00e9lescope. Sans parler que tout ce petit monde va avoir besoin d&rsquo;\u00e9lectricit\u00e9, donc une batterie qui tienne assez longtemps.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/IMG_1282.jpeg\" alt=\"\" class=\"wp-image-12554\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/IMG_1282.jpeg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/IMG_1282-300x225.jpeg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/IMG_1282-768x576.jpeg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/IMG_1282-400x300.jpeg 400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Monture \u00e9quatoriale avec lunette de 72 mm, appareil photo hybride, lunette de guidage, ordinateur et batterie<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est avec ce Setup que j&rsquo;ai vraiment d\u00e9but\u00e9 en astro photo. Une monture \u00e9quatoriale l\u00e9g\u00e8re, un tr\u00e9pied en fibre de carbone, une lunette de 72 mm de diam\u00e8tre et de 360 mm de focale, un appareil photo hybride, une cam\u00e9ra de guidage coupl\u00e9e \u00e0 une lunette de 30 mm de diam\u00e8tre et de 150 mm de focale pour le guidage et un mini ordinateur de type Asiair.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est une solution, pas la solution. L&rsquo;ordinateur peut \u00eatre un PC portable avec une bonne autonomie, la lunette de guidage peu \u00eatre remplac\u00e9e par diviseur optique comme celui ci-dessous.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/diviseur-optique-zwo-oag-l-prisme-12x12mm.jpg\" alt=\"\" class=\"wp-image-12555\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/diviseur-optique-zwo-oag-l-prisme-12x12mm.jpg 800w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/diviseur-optique-zwo-oag-l-prisme-12x12mm-300x300.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/diviseur-optique-zwo-oag-l-prisme-12x12mm-150x150.jpg 150w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/diviseur-optique-zwo-oag-l-prisme-12x12mm-768x768.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Diviseur optique qui se place entre la lunette et l&rsquo;appareil photo<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">J&rsquo;ai opt\u00e9 pour l&rsquo;Asiair plut\u00f4t que l&rsquo;ordinateur, tout simplement parce que c&rsquo;est plus simple, du moins en apparence. Les logiciels sont pr\u00e9 install\u00e9s, il n&rsquo;y a qu&rsquo;\u00e0 brancher (correctement), param\u00e9trer et \u00e7a fonctionne, enfin normalement. Si vous utilisez un PC ou un mini PC, il vous faudra installer les logiciels, param\u00e9trer les \u00e9quipements et vous creuser un peu la t\u00eate au d\u00e9but. L&rsquo;avantage c&rsquo;est que vous ne serez pas contraint par le mat\u00e9riel contrairement \u00e0 l&rsquo;Asiair qui fonctionne surtout avec la marque ZWO.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Avec ce genre de configuration, vous pouvez esp\u00e9rer r\u00e9aliser des poses unitaires de 30 \u00e0 600 secondes ce qui va faire une grosse diff\u00e9rence et en plus, l&rsquo;ordinateur peut servir d&rsquo;intervallom\u00e8tre et m\u00eame d&rsquo;espace de stockage pour vos images.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"686\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Dentelles-du-Cygne.jpg\" alt=\"\" class=\"wp-image-12559\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Dentelles-du-Cygne.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Dentelles-du-Cygne-300x201.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Dentelles-du-Cygne-768x515.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Dentelles-du-Cygne-448x300.jpg 448w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">N\u00e9buleuse des dentelles du Cygne, 120 images de 60 secondes<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Galaxie-dAndromede.jpg\" alt=\"\" class=\"wp-image-12560\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Galaxie-dAndromede.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Galaxie-dAndromede-300x200.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Galaxie-dAndromede-768x512.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Galaxie-dAndromede-450x300.jpg 450w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Galaxie d&rsquo;Androm\u00e8de, 130 images de 30 secondes<\/figcaption><\/figure>\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\/2026\/04\/Tete-de-cheval.jpg\" alt=\"\" class=\"wp-image-12558\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval-300x240.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval-768x614.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval-375x300.jpg 375w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">N\u00e9buleuse de la t\u00eate de cheval, 41 images de 300 secondes<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Nous avons vu dans le pr\u00e9c\u00e9dent article, que pour photographier les \u00e9toiles en compensant le mouvement de rotation de la terre, nous pouvions utiliser une monture \u00e9quatoriale. Cette monture va nous permettre, en fonction de sa qualit\u00e9, de la focale &hellip; <a href=\"https:\/\/www.blog.neoprog.eu\/index.php\/2026\/06\/06\/photographier-les-etoiles-lauto-guidage\/\">Continuer la lecture <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12552","post","type-post","status-publish","format-image","hentry","category-non-classe","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Photographier les \u00e9toiles - l&#039;auto guidage - 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\/2026\/06\/06\/photographier-les-etoiles-lauto-guidage\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photographier les \u00e9toiles - l&#039;auto guidage - Le Blog du N\u00e9oprog\" \/>\n<meta property=\"og:description\" content=\"Nous avons vu dans le pr\u00e9c\u00e9dent article, que pour photographier les \u00e9toiles en compensant le mouvement de rotation de la terre, nous pouvions utiliser une monture \u00e9quatoriale. Cette monture va nous permettre, en fonction de sa qualit\u00e9, de la focale &hellip; Continuer la lecture &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.blog.neoprog.eu\/index.php\/2026\/06\/06\/photographier-les-etoiles-lauto-guidage\/\" \/>\n<meta property=\"og:site_name\" content=\"Le Blog du N\u00e9oprog\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-06T06:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2026\/04\/Tete-de-cheval.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"819\" \/>\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\\\/2026\\\/06\\\/06\\\/photographier-les-etoiles-lauto-guidage\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/index.php\\\/2026\\\/06\\\/06\\\/photographier-les-etoiles-lauto-guidage\\\/\"},\"author\":{\"name\":\"Neoprog\",\"@id\":\"https:\\\/\\\/www.blog.neoprog.eu\\\/#\\\/schema\\\/person\\\/47c594bf12736b172b772f0f02bcf511\"},\"headline\":\"Photographier les \u00e9toiles &#8211; 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