{"id":44914,"date":"2022-06-09T08:41:38","date_gmt":"2022-06-09T06:41:38","guid":{"rendered":"https:\/\/www.stelvision.com\/astro\/?post_type=product&#038;p=44914"},"modified":"2026-01-08T13:08:14","modified_gmt":"2026-01-08T12:08:14","slug":"filtre-solaire-astf200-pour-telescope-stelescope-200-ou-equivalent","status":"publish","type":"product","link":"https:\/\/www.stelvision.com\/astro\/boutique\/filtre-solaire-astf200-pour-telescope-stelescope-200-ou-equivalent\/","title":{"rendered":"Filtre solaire Baader Astrosolar ASTF200 (pour STELESCOPE 200 ou \u00e9quivalent)"},"content":{"rendered":"<p>Les filtres solaires ASTF ont \u00e9t\u00e9 con\u00e7us par Baader Planetarium, marque de r\u00e9f\u00e9rence, pour observer le Soleil en toute s\u00e9curit\u00e9 avec un t\u00e9lescope. Ils existent en diff\u00e9rents diam\u00e8tres. Le mod\u00e8le ASTF200 a une ouverture utile de 200 mm et convient parfaitement au <a href=\"https:\/\/www.stelvision.com\/astro\/boutique\/telescope-stelescope-200\/\">STELESCOPE 200<\/a> ou \u00e0 d&rsquo;autres t\u00e9lescopes de dimensions voisines (diam\u00e8tre ext\u00e9rieur du tube : entre 220 et 290 mm).<\/p>\n<p>Plac\u00e9 \u00e0 l&rsquo;avant de l&rsquo;instrument, le filtre ASTF200 permet d&rsquo;observer la surface du Soleil \u00e0 tous les grossissements.<\/p>\n<div class=\"boxFocus\">\n<p>La plupart du temps, il est possible d&rsquo;observer des taches solaires, des zones sombres li\u00e9es \u00e0 l&rsquo;activit\u00e9 magn\u00e9tique du Soleil. Il est aussi parfois possible d&rsquo;observer des facules, des zones particuli\u00e8rement claires et brillantes qui sont elles aussi d&rsquo;origine magn\u00e9tique (pour plus d&rsquo;information, consultez notre <a href=\"https:\/\/www.stelvision.com\/astro\/observer-le-soleil\/\">page sp\u00e9ciale Soleil<\/a>).<\/p>\n<\/div>\n<p>Le filtre ASTF200 est compos\u00e9 de :<\/p>\n<ul>\n<li>un support rigide ajustable avec pr\u00e9cision au diam\u00e8tre de l&rsquo;instrument, gr\u00e2ce aux deux jeux de boulons de centrage de longueur 38 mm (3 boulons de 10 mm de diam\u00e8tre et 3 boulons de 20 mm de diam\u00e8tre) pr\u00e9vus pour s&rsquo;adapter \u00e0 tous les instruments dont le diam\u00e8tre ext\u00e9rieur est compris entre 220 et 290 mm ;<\/li>\n<li>une feuille filtrante AstroSolar de densit\u00e9 5.0 mont\u00e9e sans contrainte dans le support rigide ;<\/li>\n<li>trois sangles de s\u00e9curit\u00e9 avec tampons autocollants pour emp\u00eacher le filtre de tomber ;<\/li>\n<li>trois bouchons en caoutchouc pour couvrir les trous non utilis\u00e9s ;<\/li>\n<li>une notice de montage.<\/li>\n<\/ul>\n<p>L&rsquo;absence de contrainte sur la feuille filtrante permet de diminuer au maximum les aberrations optiques sur l&rsquo;image obtenue.<\/p>\n<p><strong>IMPORTANT<\/strong><\/p>\n<ul>\n<li>Ne regardez jamais le Soleil dans un instrument (jumelles, lunette, t\u00e9lescope, appareil photo) qui n&rsquo;est pas muni d&rsquo;un filtre solaire ad\u00e9quat plac\u00e9 \u00e0 l&rsquo;avant de l&rsquo;optique.<\/li>\n<li>Si l&rsquo;instrument est muni d&rsquo;un chercheur (lunette de vis\u00e9e), \u00e9quipez-le \u00e9galement d&rsquo;un filtre ou placez son bouchon protecteur \u00e0 l&rsquo;avant.<\/li>\n<li>Si l&rsquo;instrument est muni d&rsquo;un pointeur \u00e0 mire (QuikFinder, Telrad&#8230;), d\u00e9montez-le de son support pour ne pas risquer de l&rsquo;endommager.<\/li>\n<li>Si l&rsquo;instrument est muni d&rsquo;un pointeur \u00ab\u00a0point rouge\u00a0\u00bb, abstenez-vous de viser le Soleil avec.<\/li>\n<li>Avant chaque observation, v\u00e9rifiez que le filtre est en bon \u00e9tat (absence de rayures ou de trous) avant de placer votre \u0153il derri\u00e8re l&rsquo;oculaire.<\/li>\n<li>Interrompez l&rsquo;observation solaire toutes les trois minutes pour reposer vos yeux.<\/li>\n<li>Stockez toujours le filtre ASTF Baader dans une bo\u00eete ferm\u00e9e pour emp\u00eacher le vieillissement, les accidents et le d\u00e9p\u00f4t de poussi\u00e8re.<\/li>\n<li>N&rsquo;essayez pas de nettoyer la feuille filtrante au risque de d\u00e9t\u00e9riorer ses qualit\u00e9s filtrantes.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Plac\u00e9 \u00e0 l&rsquo;avant du STELESCOPE 200 ou t\u00e9lescope de dimensions voisines, ce filtre permet d&rsquo;observer la surface du Soleil en toute s\u00e9curit\u00e9.<\/p>\n","protected":false},"featured_media":9164,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[127,376],"product_tag":[344],"class_list":{"0":"post-44914","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-telescopes-lunettes","7":"product_cat-special-soleil-eclipse","8":"product_tag-filtres-solaires-baader-astrosolar","9":"product_shipping_class-reconditionne-hors-logisticien","11":"first","12":"outofstock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Filtre solaire Baader Astrosolar ASTF200 pour STELESCOPE 200 ou \u00e9quivalent<\/title>\n<meta name=\"description\" content=\"Plac\u00e9 \u00e0 l&#039;avant de votre t\u00e9lescope, le filtre Baader Astrosolar ASTF permet d&#039;observer le Soleil en 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