{"id":9178,"date":"2025-07-18T13:38:16","date_gmt":"2025-07-18T11:38:16","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=9178"},"modified":"2025-07-18T13:45:07","modified_gmt":"2025-07-18T11:45:07","slug":"acuter-40-lunette-solaire-h-alpha","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/acuter-40-lunette-solaire-h-alpha\/","title":{"rendered":"Acuter 40 H-alpha sunglass"},"content":{"rendered":"<h3 style=\"text-align: center;\">Acuter Elite Phoenix 40 - The versatile and innovative H-alpha solar telescope<\/h3>\n<p>Visit <strong>Acuter Elite Phoenix 40<\/strong> is a new-generation solar telescope designed to observe our star in stunning detail. Thanks to a 40 mm H-alpha standard at the front and an integrated blocking filter, it reveals the Sun's most dynamic structures: protuberances, filaments, flares and active patches appear in high definition in intense red light, filtered around 656 nm. With a bandwidth of less than 0.6 \u00c5ngstr\u00f6m, this telescope rivals much more expensive instruments.<\/p>\n<p>But the Phoenix 40 doesn't stop there: with just a few flicks of the wrist, it can also become a <strong>classic 80 mm f\/5 refractor<\/strong> for deep-sky and planetary observation. This rare versatility makes it the ideal two-in-one instrument for curious astronomers, educators or experienced amateurs.<\/p>\n<h3>Main technical data<\/h3>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr>\n<th>Specification<\/th>\n<th>Detail<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Opening in solar mode<\/strong><\/td>\n<td>40 mm (H-alpha)<\/td>\n<\/tr>\n<tr>\n<td><strong>Opening in visual mode<\/strong><\/td>\n<td>80 mm (achromatic refractor)<\/td>\n<\/tr>\n<tr>\n<td><strong>Focal length<\/strong><\/td>\n<td>400 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>F\/D ratio<\/strong><\/td>\n<td>f\/10 (solar), f\/5 (visual)<\/td>\n<\/tr>\n<tr>\n<td><strong>H-alpha spectral range<\/strong><\/td>\n<td>&lt; 0.6 \u00c5<\/td>\n<\/tr>\n<tr>\n<td><strong>Standard setting<\/strong><\/td>\n<td>By pressure (fine tuning)<\/td>\n<\/tr>\n<tr>\n<td><strong>Blocking filter<\/strong><\/td>\n<td>8 mm integrated into the solar angle drive<\/td>\n<\/tr>\n<tr>\n<td><strong>Focuser<\/strong><\/td>\n<td>1.25\u2033 rotating crayford - 360\u00b0 locking<\/td>\n<\/tr>\n<tr>\n<td><strong>Supplied eyepiece<\/strong><\/td>\n<td>Zoom 5-16 mm (magnifications 25\u00d7 to 80\u00d7)<\/td>\n<\/tr>\n<tr>\n<td><strong>Recommended frame<\/strong><\/td>\n<td>Sky-Watcher SolarQuest (Solar Go-To)<\/td>\n<\/tr>\n<tr>\n<td><strong>Smartphone holder<\/strong><\/td>\n<td>Included (universal for H-alpha photo)<\/td>\n<\/tr>\n<tr>\n<td><strong>Mounting<\/strong><\/td>\n<td>45 mm dovetail bar with 1\/4-20 pitch<\/td>\n<\/tr>\n<tr>\n<td><strong>Tube weight<\/strong><\/td>\n<td>2 kg<\/td>\n<\/tr>\n<tr>\n<td><strong>Tube length<\/strong><\/td>\n<td>412 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Safety compliance<\/strong><\/td>\n<td>ISO 12312-2:2015<\/td>\n<\/tr>\n<tr>\n<td><strong>Carrying case<\/strong><\/td>\n<td>Includes aluminum with foam cut-out<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Two instruments in one: solar and celestial<\/h3>\n<p>The Phoenix 40 is one of the few telescopes capable of transformation. By simply removing the standard and the solar bent reflector, then installing the classic diagonal mirror supplied, it becomes a <strong>true refractor 80\/400<\/strong>. Ideal for nebulae, open clusters, the Moon or Jupiter, it can be used with standard 1.25\u2033 eyepieces and can accommodate short CCD or CMOS cameras (55 mm backfocus or less).<\/p>\n<h3>Sun observation in complete safety<\/h3>\n<p>Thanks to its ISO-compliant design, integrated solar finder and blocking filter, the Phoenix 40 guarantees maximum safety during H-alpha observations. However, it is crucial to always use the telescope with the original components supplied (in particular, the solar bent reflector) and never to point it at the Sun without these protections.<\/p>\n<h3>For solar photo enthusiasts<\/h3>\n<p>Supplied with a universal smartphone adapter, it makes it easy to capture spectacular images of the solar chromosphere. It is also compatible with 1.25\u2033 astronomical cameras for professional results. Generous backfocusing makes it easy to focus, even with more complex systems including Barlow or filter wheel.<\/p>\n<h3>Conclusion<\/h3>\n<p>Visit <strong>Acuter Elite Phoenix 40<\/strong> is much more than a solar telescope: it's an evolutionary, compact and affordable observation platform. High-performance in H-alpha, versatile in night mode, it is a unique solution for exploring the Sun... and the stars. An ideal instrument for schools, astronomy clubs, curious enthusiasts and lovers of beautiful images.<\/p>","protected":false},"excerpt":{"rendered":"<p>Acuter Elite Phoenix 40 \u2013 Le t\u00e9lescope solaire H-alpha polyvalent et innovant Le Acuter Elite Phoenix 40 est un t\u00e9lescope solaire de nouvelle g\u00e9n\u00e9ration, con\u00e7u pour observer notre \u00e9toile avec une finesse de d\u00e9tails saisissante. Gr\u00e2ce \u00e0 un \u00e9talon H-alpha de 40 mm \u00e0 l\u2019avant et un filtre bloquant int\u00e9gr\u00e9, il permet de r\u00e9v\u00e9ler les [&hellip;]<\/p>\n","protected":false},"featured_media":9180,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[822],"product_cat":[643],"product_tag":[],"class_list":{"0":"post-9178","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-sky-watcher","7":"product_cat-lunettes-solaires","9":"first","10":"on_supplier","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/9178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=9178"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/9180"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=9178"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=9178"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=9178"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=9178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}