{"id":104665,"date":"2026-03-17T14:20:50","date_gmt":"2026-03-17T13:20:50","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=104665"},"modified":"2026-03-17T14:27:04","modified_gmt":"2026-03-17T13:27:04","slug":"acuter-elite-phoenix-40-h-alpha-sonnen-telescope","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/acuter-elite-phoenix-40-h-alpha-zonnetelescoop\/","title":{"rendered":"Acuter Elite Phoenix 40 H-alpha solar telescope"},"content":{"rendered":"<h3 class=\"wp-block-heading\"><strong>Experience the sun in H-alpha with the Acuter Elite Phoenix 40<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Acuter Elite Phoenix 40<\/strong> takes solar observation to a professional level. Where a standard <strong>solar telescope<\/strong> limited to white light (sunspots), this H-alpha telescope shows the dynamic chromosphere of the sun. With an aperture of 40mm and an impressive bandwidth of <strong>0.6 \u00e5ngstr\u00f6m<\/strong> or better, enjoy a high-contrast image full of activity.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-1024x1024.jpg\" alt=\"Acuter Elite Phoenix 40 H-alpha solar telescope\" class=\"wp-image-104668\" title=\"\" srcset=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-1024x1024.jpg 1024w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-300x300.jpg 300w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-150x150.jpg 150w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-800x800.jpg 800w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-64x64.jpg 64w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-768x768.jpg 768w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-1536x1536.jpg 1536w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-12x12.jpg 12w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-990x990.jpg 990w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-441x441.jpg 441w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3-100x100.jpg 100w, https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Elite-Phoenix-40-H-alpha-zonnetelescoop3.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Unprecedented details: from prominences to spicules<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"p-rc_55bc29f79d99c21e-40\">Thanks to the precise <em>pressure tuning<\/em> (pressure control) you tune the telescope exactly to the H-alpha line.<sup><\/sup> This reveals breathtaking phenomena that are hidden by the naked eye or normal filters:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Protuberances:<\/strong> Giant gas loops shooting out of the solar surface.<\/li>\n\n\n\n<li><strong>Solar flares:<\/strong> Powerful bursts of energy.<\/li>\n\n\n\n<li><strong>Surface details:<\/strong> Granulation and fine structures around sunspots.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Safety and versatility<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"p-rc_55bc29f79d99c21e-41\">Safety is at this <strong>solar telescope<\/strong> guaranteed by the front-mounted etalon and the 8mm blocking filter in the diagonal.<sup><\/sup> The instrument fully complies with the <strong>ISO 12312-2:2015<\/strong> norm.<sup><\/sup> Unique to the Phoenix 40 is its modularity: remove the etalon and solar diagonal, and you're left with a high-quality 80\/400 achromatic refractor for nighttime observations.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>\u201cThe detail through the narrow bandwidth and the amazing contrast across the entire solar disk are fascinating. It is one of the best H-alpha images I have seen.\u201d<\/em> - <strong>Astronomy Now Magazine<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type:<\/strong> H-alpha solar telescope<\/li>\n\n\n\n<li><strong>Opening:<\/strong> 40mm (front-mounted etalon)<\/li>\n\n\n\n<li><strong>Focal length:<\/strong> 400mm (f\/10)<\/li>\n\n\n\n<li><strong>Bandwidth:<\/strong> &lt; 0.6 \u00e5ngstr\u00f6m<\/li>\n\n\n\n<li><strong>Tuning:<\/strong> Pressure tuning (pressure system)<\/li>\n\n\n\n<li><strong>Blocking filter:<\/strong> 8mm<\/li>\n\n\n\n<li><strong>Eyepiece:<\/strong> 5-16mm zoom eyepiece (25x to 80x magnification)<\/li>\n\n\n\n<li><strong>Astrophotography:<\/strong> Includes universal smartphone adapter (suitable for CCD with back focus &lt; 55mm)<\/li>\n\n\n\n<li><strong>Extra:<\/strong> Supplied in sturdy aluminum carrying case<\/li>\n\n\n\n<li><strong>Dual-use:<\/strong> Also usable as 80mm night vision goggles (without solar accessories)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p data-path-to-node=\"7\">The Acuter Elite Phoenix 40 is a high-performance H-alpha solar telescope that reveals the sun in its full glory. Its bandwidth of less than 0.6 \u00e5ngstr\u00f6m reveals spectacular details such as solar flares, prominences and surface granulation. With its pressure-tuning system and included aluminum case, this is the ultimate compact kit for the serious solar explorer.<\/p>","protected":false},"featured_media":104666,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[3062],"product_cat":[3063],"product_tag":[],"class_list":["post-104665","product","type-product","status-publish","has-post-thumbnail","product_brand-acuter","product_cat-zonnetelescopen","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":31045,"url":"https:\/\/staging.telescoop.nl\/en\/sky-watcher-heliostar-76ha-h-alpha-solar-telescope\/","url_meta":{"origin":104665,"position":0},"title":"Sky-Watcher 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ls6mt","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Lunt-Solar-Systems-Zonnetelescoop-ST-70-420-LS60MT-Ha-B600-Allround-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Lunt-Solar-Systems-Zonnetelescoop-ST-70-420-LS60MT-Ha-B600-Allround-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Lunt-Solar-Systems-Zonnetelescoop-ST-70-420-LS60MT-Ha-B600-Allround-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Lunt-Solar-Systems-Zonnetelescoop-ST-70-420-LS60MT-Ha-B600-Allround-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Lunt-Solar-Systems-Zonnetelescoop-ST-70-420-LS60MT-Ha-B600-Allround-OTA.jpg?resize=1050%2C600&ssl=1 3x, 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De perfecte start voor\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=700%2C400&ssl=1 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