{"id":718,"date":"2019-03-31T17:50:09","date_gmt":"2019-03-31T15:50:09","guid":{"rendered":"http:\/\/masdeminge\/Test-Wordpress\/?page_id=718"},"modified":"2022-01-31T11:03:05","modified_gmt":"2022-01-31T10:03:05","slug":"ciel-profond","status":"publish","type":"page","link":"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/ciel-profond\/","title":{"rendered":"Ciel profond"},"content":{"rendered":"<p><span style=\"font-size: 18pt; color: #0000ff;\"><strong>Conseils g\u00e9n\u00e9raux pour les photographies du ciel profond : N\u00e9buleuses, amas d&rsquo;\u00e9toiles, galaxies<\/strong> <\/span><\/p>\n<h6>Il faut un alignement polaire\u00a0 pr\u00e9cis :\u00a0 Une erreur de 2&prime; \u00e0 3&prime; d&rsquo;arc est consid\u00e9r\u00e9e excellente pour un instrument transportable<\/h6>\n<h6><a href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/alignement-polaire\/\">Proc\u00e9dure d&rsquo;alignement polaire<\/a><\/h6>\n<h6>Si on constate des boug\u00e9s sur des temps de pose de 1 \u00e0 2 mm il faut affiner le mise en station. Voir la m\u00e9thode de King ou de Bigoudan page 114 du livre d&rsquo;astrophotographie.<\/h6>\n<h6>Si les boug\u00e9s perdurent, ils sont dus\u00a0 \u00e0 l&rsquo;erreur p\u00e9riodique des vis sans fin, il faut donc raccourcir le temps de pose \u00e0 une fraction de tour de la vis sans fin soit un temps de entre une dizaine de seconde et une minute.<\/h6>\n<h6>Si pas d&rsquo;am\u00e9lioration il faut utiliser les techniques d&rsquo;auto guidage.<\/h6>\n<h6>Pour les photographies en ciel profond avec un Newton (F\/D 4,8) il faut s&rsquo;\u00e9quiper d&rsquo;un correcteur de coma type Televue Paracorr pour les Newton de F\/D 3 \u00e0 F\/D 8<\/h6>\n","protected":false},"excerpt":{"rendered":"<p>Conseils g\u00e9n\u00e9raux pour les photographies du ciel profond : N\u00e9buleuses, amas d&rsquo;\u00e9toiles, galaxies Il faut un alignement polaire\u00a0 pr\u00e9cis :\u00a0 Une erreur de 2&prime; \u00e0 3&prime; d&rsquo;arc est consid\u00e9r\u00e9e excellente pour un instrument transportable Proc\u00e9dure d&rsquo;alignement polaire Si on constate <a class=\"more-link\" href=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/ciel-profond\/\">Lire plus &#8230;<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-718","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ciel profond - L&#039;observatoire du Causse...mots<\/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:\/\/motsdaubepine.fr\/caussemots\/index.php\/ciel-profond\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ciel profond - L&#039;observatoire du Causse...mots\" \/>\n<meta property=\"og:description\" content=\"Conseils g\u00e9n\u00e9raux pour les photographies du ciel profond : N\u00e9buleuses, amas d&rsquo;\u00e9toiles, galaxies Il faut un alignement polaire\u00a0 pr\u00e9cis :\u00a0 Une erreur de 2&prime; \u00e0 3&prime; d&rsquo;arc est consid\u00e9r\u00e9e excellente pour un instrument transportable Proc\u00e9dure d&rsquo;alignement polaire Si on constate Lire plus ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/motsdaubepine.fr\/caussemots\/index.php\/ciel-profond\/\" \/>\n<meta property=\"og:site_name\" content=\"L&#039;observatoire du Causse...mots\" \/>\n<meta property=\"article:modified_time\" content=\"2022-01-31T10:03:05+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/index.php\\\/ciel-profond\\\/\",\"url\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/index.php\\\/ciel-profond\\\/\",\"name\":\"Ciel profond - L&#039;observatoire du Causse...mots\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/#website\"},\"datePublished\":\"2019-03-31T15:50:09+00:00\",\"dateModified\":\"2022-01-31T10:03:05+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/index.php\\\/ciel-profond\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/index.php\\\/ciel-profond\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/index.php\\\/ciel-profond\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ciel profond\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/#website\",\"url\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/\",\"name\":\"L&#039;observatoire du Causse...mots\",\"description\":\"Corto, aussi beau que Sirus dans la constellation du Grand Chien\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/motsdaubepine.fr\\\/caussemots\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ciel profond - L&#039;observatoire du Causse...mots","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:\/\/motsdaubepine.fr\/caussemots\/index.php\/ciel-profond\/","og_locale":"fr_FR","og_type":"article","og_title":"Ciel profond - L&#039;observatoire du Causse...mots","og_description":"Conseils g\u00e9n\u00e9raux pour les photographies du ciel profond : N\u00e9buleuses, amas d&rsquo;\u00e9toiles, galaxies Il faut un alignement polaire\u00a0 pr\u00e9cis :\u00a0 Une erreur de 2&prime; 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