{"id":729,"date":"2024-09-01T18:32:59","date_gmt":"2024-09-01T16:32:59","guid":{"rendered":"https:\/\/fc-allsky.fr\/?page_id=729"},"modified":"2026-04-26T09:29:33","modified_gmt":"2026-04-26T07:29:33","slug":"es-truss-tube-254mm","status":"publish","type":"page","link":"https:\/\/fc-allsky.fr\/index.php\/es-truss-tube-254mm\/","title":{"rendered":"Cassegrain 200 (Kepler)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Pr\u00e9sentation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le tube optique Cassegrain Kepler GSO 200 mm&nbsp;est un instrument de 203 mm de diam\u00e8tre utile, con\u00e7u selon la formule optique Cassegrain avec un miroir primaire parabolique en quartz et un miroir secondaire hyperbolique de 65 mm de diam\u00e8tre.&nbsp;Il poss\u00e8de une focale de 2436 mm, ce qui correspond \u00e0 un rapport d&rsquo;ouverture F\/D de 12.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;absence de lame de Schmidt, caract\u00e9ristique des Cassegrains purs, \u00e9vite le d\u00e9p\u00f4t de bu\u00e9e, r\u00e9duit consid\u00e9rablement le temps de mise en temp\u00e9rature et permet une transmission lumineuse \u00e9lev\u00e9e de 99 % gr\u00e2ce \u00e0 des traitements di\u00e9lectriques<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce t\u00e9lescope est particuli\u00e8rement adapt\u00e9 \u00e0 l&rsquo;observation plan\u00e9taire et lunaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D&rsquo;origine, il est propos\u00e9 avec une queue d&rsquo;aronde Losmandy et Vixen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce tube est mont\u00e9 soit sur l&rsquo;AZEQ6 de mon abri, et bient\u00f4t sur une ML-Astro SAL-33 en nomade. Le pilotage se fait avec l&rsquo;ASIAIR 256Go.<br><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"751\" data-id=\"939\" src=\"https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-1-1024x751.jpg\" alt=\"\" class=\"wp-image-939\" srcset=\"https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-1-1024x751.jpg 1024w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-1-300x220.jpg 300w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-1-768x563.jpg 768w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-1.jpg 1106w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1019\" data-id=\"940\" src=\"https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-2-1024x1019.jpg\" alt=\"\" class=\"wp-image-940\" srcset=\"https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-2-1024x1019.jpg 1024w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-2-300x300.jpg 300w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-2-150x150.jpg 150w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-2-768x764.jpg 768w, https:\/\/fc-allsky.fr\/wp-content\/uploads\/2025\/08\/C200-2.jpg 1043w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quelques accessoires<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Renvoi coud\u00e9 2&Prime; Explore Scientific (Di\u00e9l\u00e9ctrique)<\/li>\n\n\n\n<li>Barlow TELEVUE 2x<\/li>\n\n\n\n<li>Pour la photo plan\u00e9taire : Cam\u00e9ra ASI678MC<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9sentation Le tube optique Cassegrain Kepler GSO 200 mm&nbsp;est un instrument de 203 mm de diam\u00e8tre utile, con\u00e7u selon la formule optique Cassegrain avec un miroir primaire parabolique en quartz et un miroir secondaire hyperbolique de 65 mm de diam\u00e8tre.&nbsp;Il poss\u00e8de une focale de 2436 mm, ce qui correspond \u00e0 un rapport d&rsquo;ouverture F\/D de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-729","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/pages\/729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/comments?post=729"}],"version-history":[{"count":24,"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/pages\/729\/revisions"}],"predecessor-version":[{"id":1037,"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/pages\/729\/revisions\/1037"}],"wp:attachment":[{"href":"https:\/\/fc-allsky.fr\/index.php\/wp-json\/wp\/v2\/media?parent=729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}