{"id":2396,"date":"2019-08-07T09:37:13","date_gmt":"2019-08-07T07:37:13","guid":{"rendered":"http:\/\/www.arnaudom.fr\/wordpress\/?page_id=2396"},"modified":"2020-08-06T09:15:59","modified_gmt":"2020-08-06T07:15:59","slug":"elementor-2396","status":"publish","type":"page","link":"https:\/\/www.arnaudom.fr\/wordpress\/elementor-2396\/","title":{"rendered":"Mise en temp\u00e9rature"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2396\" class=\"elementor elementor-2396 elementor-bc-flex-widget\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-21035ac6 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"21035ac6\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3a6d9e67\" data-id=\"3a6d9e67\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66610c89 elementor-widget elementor-widget-heading\" data-id=\"66610c89\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Mise en temp\u00e9rature<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-760fe439 elementor-widget elementor-widget-text-editor\" data-id=\"760fe439\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>La mise en temp\u00e9rature consiste tout simplement \u00e0 laisser le t\u00e9l\u00e9scope dehors un certain temps avant d&rsquo;observer. Ceci est une op\u00e9ration tr\u00e8s importante pour am\u00e9liorer la qualit\u00e9 des images qu&rsquo;on obtient, en particulier dans un t\u00e9l\u00e9scope dont le tube est ouvert comme le Newton.<\/p><p>Quand on sort le t\u00e9l\u00e9scope, en particulier quand il fait froid, la diff\u00e9rence de temp\u00e9rature qu&rsquo;il y a entre l&rsquo;air pr\u00e9sent dans le tube et l&rsquo;air ext\u00e9rieur provoque des turbulences qui brouillent les images. Le m\u00eame ph\u00e9nom\u00e8ne se produit quand on observe \u00e0 travers une fen\u00eatre ouverte, \u00e0 cause de la diff\u00e9rence de temp\u00e9rature entre l&rsquo;int\u00e9rieur et l&rsquo;ext\u00e9rieur (pour observer dans ces conditions, il faut alors laisser la fen\u00eatre ouverte un bon moment&#8230; ce qui n&rsquo;est pas tr\u00e8s \u00e9vident en plein hiver !).<\/p><p>On laisse donc le bouchon sur le t\u00e9l\u00e9scope, on le sort et on attend. Cet hiver, il m&rsquo;est arriv\u00e9 de laisser le t\u00e9l\u00e9scope 1h30 dehors avant de l&rsquo;utiliser. Disons qu&rsquo;une demi-heure de mise en temp\u00e9rature est souvent n\u00e9cessaire (pendant ce temps, on peut pr\u00e9parer le t\u00e9l\u00e9scope, ses observations&#8230;). Si on n&rsquo;a pas fait de mise en temp\u00e9rature et qu&rsquo;on reste un long moment \u00e0 observer, on constatera que les images s&rsquo;am\u00e9liorent au fil du temps, \u00e0 mesure que la temp\u00e9rature s&rsquo;\u00e9quilibre.<\/p><p>L&rsquo;am\u00e9lioration qu&rsquo;on obtient en observant apr\u00e8s une bonne p\u00e9riode de mise en temp\u00e9rature est tr\u00e8s nette. Parfois, en sortant le t\u00e9l\u00e9scope et en commen\u00e7ant \u00e0 observer imm\u00e9diatement une plan\u00e8te par exemple, on observe une image brouill\u00e9e, impossible \u00e0 grossir, et on peut avoir l&rsquo;impression que le t\u00e9l\u00e9scope ne fonctionne pas. Alors qu&rsquo;avec une bonne mise en temp\u00e9rature, on obtient des images tr\u00e8s bonnes. Il est encore plus important de faire une bonne mise en temp\u00e9rature si on veut faire des photos au porte-oculaire du t\u00e9l\u00e9scope. Mes meilleures images de Saturne ont \u00e9t\u00e9 faites apr\u00e8s 1h30 de mise en temp\u00e9rature.<\/p><p>Bref, quand c&rsquo;est possible, et \u00e7a n&rsquo;est pas toujours le cas, il faut toujours faire une mise en temp\u00e9rature la plus longue possible !<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Mise en temp\u00e9rature La mise en temp\u00e9rature consiste tout simplement \u00e0 laisser le t\u00e9l\u00e9scope dehors un certain temps avant d&rsquo;observer. Ceci est une op\u00e9ration tr\u00e8s importante pour am\u00e9liorer la qualit\u00e9 des images qu&rsquo;on obtient, en particulier dans un t\u00e9l\u00e9scope dont le tube est ouvert comme le Newton. Quand on sort le t\u00e9l\u00e9scope, en particulier quand &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.arnaudom.fr\/wordpress\/elementor-2396\/\"> <span class=\"screen-reader-text\">Mise en temp\u00e9rature<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2396","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=2396"}],"version-history":[{"count":6,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2396\/revisions"}],"predecessor-version":[{"id":4842,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2396\/revisions\/4842"}],"wp:attachment":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=2396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}