{"id":30071,"date":"2025-10-04T11:53:37","date_gmt":"2025-10-04T09:53:37","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=30071"},"modified":"2026-07-19T18:24:19","modified_gmt":"2026-07-19T16:24:19","slug":"celestron-rasa-800-203-400-astrograph-cgem-ii-goto","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/celestron-rasa-800-203-400-astrograph-cgem-ii-goto\/","title":{"rendered":"Celestron RASA 800 203\/400 Astrograph CGEM II GoTo"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>De f\/2-astrograaf met marge voor de langste nachten<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Celestron RASA 8 CGEM II<\/strong> zet de extreem lichtsterke Rowe-Ackermann Schmidt Astrograph op het zware CGEM II-platform. De 203 mm optiek werkt op f\/2,0 met 400 mm brandpuntsafstand: in tientallen seconden leg je nevels en sterrenvelden vast waar klassieke systemen minuten voor nodig hebben. Dit is een pure astrograaf, gebouwd om te fotograferen, niet om door te kijken.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Camera in front, no eyepiece<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Bij een RASA zit de camera in het brandpunt v\u00f3\u00f3r op de buis; een oculair past er bewust niet op. Het veld is over de volle sensorbreedte gecorrigeerd: puntvormige sterren tot in de hoeken. De korte belichtingen stellen milde eisen aan de volgnauwkeurigheid, en op de CGEM II met 18 kg draagvermogen blijft ruimte over voor camera, filterwiel en dauwbestrijding.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">The CGEM II Mount: Room for Serious Photography<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">De CGEM II is de zwaardere Duitse equatoriale GoTo van Celestron: 18 kg draagvermogen, NexStar+ handcontroller met ruim 40.000 objecten, All-Star Polar Alignment, permanent programmeerbare periodieke foutcorrectie (PPEC) en een autoguider-poort. De montering werkt op 12V; een powertank is de logische aanvulling.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">For whom yes, for whom no<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Wel: de toegewijde deep-sky fotograaf die maximaal resultaat per klok-uur wil, met een opstelling die nachtenlang onbewaakt doorwerkt. Niet: wie ook visueel wil kijken; kies dan een EdgeHD op dezelfde montering.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What's in the box?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Optical tube RASA 8 (203\/400, f\/2.0)<\/li>\n\n\n\n<li>CGEM II GoTo Mount with NexStar+ Hand Controller<\/li>\n\n\n\n<li>Steel tripod with accessory tray<\/li>\n\n\n\n<li>Camera adapters for focal plane<\/li>\n\n\n\n<li>Counterweights<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Recommended accessory<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>Celestron PowerTank Lithium LT<\/strong> The mount feeds all night in the field.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Specification<\/strong><\/td><td><strong>Celestron RASA 8 CGEM II<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Optical design<\/strong><\/td><td>Rowe-Ackermann Schmidt Astrograph<\/td><\/tr><tr><td><strong>Opening<\/strong><\/td><td>203 mm (8 inches)<\/td><\/tr><tr><td><strong>Focal length<\/strong><\/td><td>400 mm<\/td><\/tr><tr><td><strong>Opening ratio<\/strong><\/td><td>f\/2.0<\/td><\/tr><tr><td><strong>Use<\/strong><\/td><td>Photographic only (no eyepiece possible)<\/td><\/tr><tr><td><strong>Light output<\/strong><\/td><td>841 times relative to the naked eye<\/td><\/tr><tr><td><strong>Mount<\/strong><\/td><td>CGEM II, German equatorial GoTo (18 kg payload capacity)<\/td><\/tr><tr><td><strong>Hand controller<\/strong><\/td><td>NexStar+ with 40,000+ objects<\/td><\/tr><tr><td><strong>Autoguider port<\/strong><\/td><td>Yes<\/td><\/tr><tr><td><strong>Nutrition<\/strong><\/td><td>12V external<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Still unsure about the right model? Our <a href=\"https:\/\/www.telescoop.nl\/en\/the-best-telescope-for-beginners\/\">Buyer's guide for beginners<\/a> and the <a href=\"https:\/\/www.telescoop.nl\/en\/telescope-selection-aid\/\">telescope selection aid<\/a> help you step by step. Also check out all the <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/telescopes-for-astrophotography\/\">telescopes for astrophotography<\/a> or the full range on the <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/celestron\/\">Celestron merk Page<\/a>. You can read more background information about the merk in the <a href=\"https:\/\/www.telescoop.nl\/en\/buy-celestron-telescope\/\">Celestron merk Guide<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>De Celestron RASA 8 CGEM II wordt geleverd met de 203 mm f\/2,0 Rowe-Ackermann Schmidt Astrograph en de CGEM II GoTo-montering met 18 kg draagvermogen en autoguider-poort. Uitsluitend voor fotografie.<\/p>","protected":false},"featured_media":30073,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[125],"product_cat":[51,428,531],"product_tag":[],"class_list":["post-30071","product","type-product","status-publish","has-post-thumbnail","product_brand-celestron","product_cat-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-gevorderd","product_shipping_class-telescoop","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"outofstock","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":[15107,15705,13005,14078,91077],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":12260,"url":"https:\/\/www.telescoop.nl\/en\/celestron-rasa-8-203-400-avx-goto-astrograph\/","url_meta":{"origin":30071,"position":0},"title":"Celestron RASA 8 203\/400 Newton Advanced VX GoTo","author":"","date":"26-02-2025","format":false,"excerpt":"The Celestron RASA 8 Advanced VX comes with the 203 mm f\/2.0 Rowe-Ackermann Schmidt Astrograph and the Advanced VX GoTo mount with NexStar+ hand controller and autoguider port. For photography only.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":12269,"url":"https:\/\/www.telescoop.nl\/en\/celestron-rasa-203-400-advanced-vx-rowe-ackermann-goto-telescoop-2\/","url_meta":{"origin":30071,"position":1},"title":"Celestron RASA 203\/400 Advanced VX","author":"","date":"26-02-2025","format":false,"excerpt":"\u00a0 Celestron RASA 203\/400 Advanced VX comes with 203 mm f\/2.0 Rowe-Ackermann Schmidt Astrograph, Advanced VX GoTo mount and is exclusively designed for fast and razor-sharp astrophotography.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-SET-9.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-SET-9.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-SET-9.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-SET-9.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-SET-9.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-SET-9.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":30029,"url":"https:\/\/www.telescoop.nl\/en\/celestron-203-2032-schmidt-cassegrain-cgem-ii-800-goto\/","url_meta":{"origin":30071,"position":2},"title":"Celestron 203\/2032 Schmidt-Cassegrain CGEM II 800 GoTo","author":"Info telescoop","date":"04-10-2025","format":false,"excerpt":"De Celestron SC 203\/2032 CGEM II 800 wordt geleverd met de klassieke C8 Schmidt-Cassegrain-optiek en de CGEM II GoTo-montering met 18 kg draagvermogen, NexStar+ handcontroller en autoguider-poort.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Celestron Schmidt-Cassegrain Telescoop SC 203\/2032 CGEM II 800 GoTo","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-CGEM-II-800-GoTo.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-CGEM-II-800-GoTo.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-CGEM-II-800-GoTo.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-CGEM-II-800-GoTo.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-CGEM-II-800-GoTo.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-CGEM-II-800-GoTo.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":30088,"url":"https:\/\/www.telescoop.nl\/en\/celestron-edgehd-800-203-2032-cgem-ii-goto\/","url_meta":{"origin":30071,"position":3},"title":"Celestron EdgeHD 800 203\/2032 CGEM II GoTo","author":"","date":"04-10-2025","format":false,"excerpt":"De Celestron EdgeHD 800 CGEM II wordt geleverd met 203 mm EdgeHD-optiek met vlak, coma-vrij beeldveld en de CGEM II GoTo-montering met 18 kg draagvermogen, NexStar+ handcontroller en autoguider-poort.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Celestron Schmidt-Cassegrain Telescoop SC 203\/2032 EdgeHD 800 CGEM II GoTo","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-EdgeHD-800-CGEM-II-GoTo.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-EdgeHD-800-CGEM-II-GoTo.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-EdgeHD-800-CGEM-II-GoTo.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-EdgeHD-800-CGEM-II-GoTo.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-EdgeHD-800-CGEM-II-GoTo.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Schmidt-Cassegrain-telescoop-SC-203-2032-EdgeHD-800-CGEM-II-GoTo.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":30060,"url":"https:\/\/www.telescoop.nl\/en\/celestron-180-2700-cgem-ii-700-goto\/","url_meta":{"origin":30071,"position":4},"title":"Celestron 180\/2700 CGEM II 700 GoTo","author":"Info telescoop","date":"04-10-2025","format":false,"excerpt":"The Celestron MC 180\/2700 CGEM II comes with 180mm Maksutov-Cassegrain optics and the CGEM II GoTo mount with a 18 kg payload capacity, NexStar+ hand controller, and autoguider port.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Celestron Maksutov Telescoop MC 180\/2700 CGEM II 700 GoTo","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Maksutov-telescoop-MC-180-2700-CGEM-II-700-GoTo.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Maksutov-telescoop-MC-180-2700-CGEM-II-700-GoTo.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Maksutov-telescoop-MC-180-2700-CGEM-II-700-GoTo.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Maksutov-telescoop-MC-180-2700-CGEM-II-700-GoTo.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Maksutov-telescoop-MC-180-2700-CGEM-II-700-GoTo.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Maksutov-telescoop-MC-180-2700-CGEM-II-700-GoTo.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":8007,"url":"https:\/\/www.telescoop.nl\/en\/celestron-origin-mark-ii\/","url_meta":{"origin":30071,"position":5},"title":"Celestron Origin Mark II","author":"Info telescoop","date":"12-02-2025","format":false,"excerpt":"The Celestron Origin Mark II comes with 152mm f\/2.2 RASA optics, integrated Sony STARVIS 2 color camera, live stacking with AI enhancement, automatic dew control, autofocus, and full app control.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Smart-Telescope-S-152-335-Origin-Intelligent-Home-Observatory.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Smart-Telescope-S-152-335-Origin-Intelligent-Home-Observatory.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Smart-Telescope-S-152-335-Origin-Intelligent-Home-Observatory.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Smart-Telescope-S-152-335-Origin-Intelligent-Home-Observatory.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Smart-Telescope-S-152-335-Origin-Intelligent-Home-Observatory.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Smart-Telescope-S-152-335-Origin-Intelligent-Home-Observatory.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/30071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=30071"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/30073"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=30071"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=30071"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=30071"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=30071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}