{"title":"Astrograph Telescope","description":null,"products":[{"product_id":"celestron-cgx-800-rasa-lightweight-telescope-with-fast-f2-0-system-q6x646","title":"Celestron CGX 800 RASA Lightweight Telescope with Fast f2.0 System","description":"\u003cp\u003eCapture spectacular wide-field deep sky images in seconds with Celestron CGX 800 RASA Telescope. This incredibly fast f\/2.0 system is the perfect companion to today’s color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, it’s easy to transport your 8-inch RASA to the most remote dark sky locations.\u003c\/p\u003e\u003ch3\u003eRASA Performance Made for Everyone\u003c\/h3\u003e\u003cp\u003eThe 8-inch RASA is an imaging telescope that delivers a flat field without optical aberrations for razor sharp stars across a wide field of view. It can capture stunning deep-sky astronomical images without the challenges typically presented by longer focal length instruments at a fraction of the cost of those systems. With the 8-inch RASA, a wider range of astroimagers can enjoy the benefits of the RASA design. It includes features such as the integrated air-cooling system, internal filter mount, and sturdy CGE dovetail mounting bar. Purely designed for imaging, the 8-inch RASA cannot be used visually. The prime focus focal plane is located at the front of the optical system, so it cannot accommodate a traditional eyepiece.\u003c\/p\u003e\u003ch3\u003eShorter Exposure Times and Virtual Real-Time Observing\u003c\/h3\u003e\u003cp\u003eSince it is an F\/2.0 optical system, imagers can use shorter exposure times to capture detail in faint objects. When combined with sensitive cameras and the proper live stacking software, the 8-inch RASA can provide an almost real-time observing experience. View images on a computer instantly that are brighter and more detailed than can be seen in much bigger telescopes with the naked eye.\u003c\/p\u003e\u003ch3\u003eUnique Optical Design\u003c\/h3\u003e\u003cp\u003eRASA’s optical design is patented (US 2016\/0299331 A1) consisting of a Schmidt corrector, primary mirror, lens group, and optical window. The lens group contains 4 elements and utilizes rare-earth elements. Unlike many telescopes that only perform well over the visible spectrum (400-700nm), the optic is designed to perform over a wider spectral range, from 390-800nm. This allows more of the light emitted from the astronomical object to be sharply focused in the image. All refractive optical surfaces are coated with StarBright XLT coatings, while the primary mirror uses enhanced aluminum coatings. This maintains high light transmission through the entire optical system and provides better optical performance and field illumination.\u003c\/p\u003e\u003ch3\u003eCGX: The Ideal Platform for RASA\u003c\/h3\u003e\u003cp\u003eThe CGX is the culmination is an incredibly sturdy equatorial mount which rigidly supports the RASA 8. The mount was designed more compactly, so the instrument load is held closer to the R.A. axis, thus reducing torque from the load. It was also designed using FEA (Finite Element Analysis) software, which helped to optimize the stout structure of the mount. As a result, the CGX can support more weight than other mounts with similar mass. With its 55 lb load capacity, it can easily handle the RASA 8, which weighs only 17 lb, along with a camera and any accessories. Expect a vibration-free setup, even in somewhat windy conditions. The RASA 8 connects directly to the CGX with its CGE dovetail mounting bar. The heavy-duty adjustable height tripod has 2-inch diameter steel tripod legs with an extra-wide stance for improved stability. Graduated markings on the tripod legs make it easy to extend them to the same height and level the tripod.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46297105989689,"sku":"12058-CELESTRON","price":959.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0812\/8980\/5881\/files\/62p80msiyb74_a05a382d-f10b-4f0b-9a48-f70fe059ded4.jpg?v=1786390468"},{"product_id":"celestron-36-cm-rowe-ackermann-schmidt-astrograph-ota-only-f2sfen","title":"Celestron 36 cm Rowe-Ackermann Schmidt Astrograph (OTA Only)","description":"\u003cp\u003eThe Rowe-Ackermann Schmidt Astrograph (RASA), is a cost-effective optical system for space surveillance, Space Situational Awareness (SSA), other scientific applications, and advanced wide field astroimaging. It offers unprecedented value in aperture, speed, field of view, and optical performance. The 14\" RASA design has a convenient external prime-focus image capture location with a flat focal plane, providing small spot sizes to the edge of a wide field. The result is images free of optical defects like field curvature, off-axis coma, and astigmatism.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHigh Quality\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCelestron’s proprietary XLT coatings, consisting of high-transmission multi-coatings for lenses and high reflectivity aluminum coatings, ensure good light throughput for the optical system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSuperior\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 36 cm aperture version is the largest RASA Celestron manufactures; it is the biggest and fastest (f\/2.2) optical instrument of its kind available “off-the-shelf.” Unlike most telescopes, which only focus visible light (400-700 nm), the RASA 36 cm focuses an extended spectral range (400-900 nm), allowing a brighter signal to be detected by a camera sensor. The RASA 36 cm also features a redesigned focus system, which ensures easy and stable focusing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExtraordinary Astroimages\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRASA 36 cm’s ample back-focus distance (77.5 mm) accommodates a wide variety of imaging sensors and so capturing impressive deep-sky astroimages is easier than ever with Celestron’s new Rowe-Ackermann Schmidt Astrograph, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f\/2.2 system offers two huge advantages over traditional f\/10 astroimaging: better apparent tracking and shorter exposures. That means you’ll create better-looking astroimages in a fraction of the time, even without the use of an autoguider. With CCD sensor sizes as large as film—or larger—the Schmidt Astrograph offers a 60.1 mm optimized image circle to capture pinpoint stars on the largest imaging chips. Combine this large image circle with a focal length of 790 mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOptical Performance\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Rowe-Ackermann Schmidt Astrograph features newly designed optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle is unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAdvanced Features\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAdvanced features like a custom engineered linear brass focuser bearing and FeatherTouch Micro Focus Knob allow you to make the fine adjustments you need to capture the perfect shot. The motor system specifically designed for the RASA 36 cm focuser is manufactured by Starlight Instruments. Meanwhile, an integrated cooling fan helps optics cool down to ambient temperature and pulls air through vents with micromesh to prevent dust ingress. Two sets of 2x threaded insert holes in the rear cell provide additional mounting options.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFlexible and Portable\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDual dovetail bars offer flexibility to mount the optical tube and conveniently attach additional accessories. Accomodates “CGE\/Losmandy” style dovetails. Moving and mounting your optical tube is easy with the carrying handles on the rear cell.\u003c\/p\u003e\u003cp\u003eEngineered as a complete astroimaging system, every component of the Rowe-Ackermann Schmidt Astrograph is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or an optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46298112163897,"sku":"91077-CELESTRON","price":2799.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0812\/8980\/5881\/files\/j88nfmw6ptuv_e16402bd-d5d1-4a2c-a300-d059428df6cc.jpg?v=1786406780"},{"product_id":"celestron-rasa-8-8-inch-rowe-ackermann-schmidt-astrograph-dwhhz1","title":"Celestron RASA 8 8-Inch Rowe-Ackermann Schmidt Astrograph","description":"\u003cp\u003eCapture spectacular wide-field deep sky images in seconds with Celestron 8-Inch Rowe-Ackermann Schmidt Astrograph (RASA 8). This incredibly fast f\/2.0 system is the perfect companion to today’s color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, it’s easy to transport your 8-inch RASA to the most remote dark sky locations.\u003c\/p\u003e\u003ch3\u003eRASA Performance Made for Everyone\u003c\/h3\u003e\u003cp\u003eThe 8-inch RASA is an imaging telescope that delivers a flat field without optical aberrations for razor sharp stars across a wide field of view. It can capture stunning deep-sky astronomical images without the challenges typically presented by longer focal length instruments at a fraction of the cost of those systems. With the 8-inch RASA, a wider range of astroimagers can enjoy the benefits of the RASA design. It includes features such as the integrated air-cooling system, internal filter mount, and sturdy CGE dovetail mounting bar. Purely designed for imaging, the 8-inch RASA cannot be used visually. The prime focus focal plane is located at the front of the optical system, so it cannot accommodate a traditional eyepiece.\u003c\/p\u003e\u003ch3\u003eShorter Exposure Times and Virtual Real-Time Observing\u003c\/h3\u003e\u003cp\u003eSince it is an F\/2.0 optical system, imagers can use shorter exposure times to capture detail in faint objects. When combined with sensitive cameras and the proper live stacking software, the 8-inch RASA can provide an almost real-time observing experience. View images on a computer instantly that are brighter and more detailed than can be seen in much bigger telescopes with the naked eye.\u003c\/p\u003e\u003cp\u003eBecause shorter exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. This astrograph is relatively short 400mm focal length and also lessens equatorial tracking demands. In many cases, autoguiding will not be required. Weighing only 17 lb, this optical tube pairs perfectly with a wide variety of mounts.\u003c\/p\u003e\u003ch3\u003eUnique Optical Design\u003c\/h3\u003e\u003cp\u003eRASA’s optical design is patented (US 2016\/0299331 A1) consisting of a Schmidt corrector, primary mirror, lens group, and optical window. The lens group contains 4 elements and utilizes rare-earth elements. Unlike many telescopes that only perform well over the visible spectrum (400-700nm), the optic is designed to perform over a wider spectral range, from 390-800nm. This allows more of the light emitted from the astronomical object to be sharply focused in the image. All refractive optical surfaces are coated with StarBright XLT coatings, while the primary mirror uses enhanced aluminum coatings. This maintains high light transmission through the entire optical system and provides better optical performance and field illumination.\u003c\/p\u003e\u003ch3\u003eUltra-Stable Focus System\u003c\/h3\u003e\u003cp\u003eWith the launch of the 8-inch RASA, Celestron is unveiling a new focuser design that mitigates lateral movement of the primary mirror when focusing, slewing, or tracking with the astrograph. Focusing is easier, more accurate, and more stable than ever. The key to the Ultra-Stable Focus System is two sets of precision bearings that are precisely aligned and tested during assembly to ensure optimal results.\u003c\/p\u003e\u003ch3\u003eBuilt for Latest Cameras\u003c\/h3\u003e\u003cp\u003eUnlike the larger RASAs that work with DSLR and large CCD cameras, the 8-inch model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. The telescope does not work with standard DSLR cameras. It is optimized for sensors with up to a 22mm diagonal, but performs well with sensors up to 32mm diagonal. The APS-C sized sensors used in many mirrorless cameras are a good choice. The 42mm full frame sensors will also work, but performance will be poor at the edges of the sensor and field illumination will be reduced.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46298112229433,"sku":"91073-CELESTRON","price":439.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0812\/8980\/5881\/files\/uoz3p3apejxy_6d3e7e73-ff95-4e8a-9308-a4fd5d8b56bb.jpg?v=1786406781"},{"product_id":"celestron-6-inch-rowe-ackermann-schmidt-astrograph-optical-tube-assembly-cg-5-dovetail-5h7ws0","title":"Celestron 6-Inch Rowe-Ackermann Schmidt Astrograph Optical Tube Assembly (CG-5 Dovetail)","description":"\u003cp\u003eMeet the Rowe-Ackermann Schmidt Astrograph (RASA) 6, a compact powerhouse that delivers spectacular astroimages, anywhere. Engineered with ultra-fast f2.2 optics, the smallest member of the RASA family proves that you do not have to sacrifice performance for portability. Whether you are chasing dark skies in remote locations or elevating your backyard setup, RASA 6 opens the door to new possibilities.\u003c\/p\u003e\u003ch3\u003eRASA Performance for Everyone\u003c\/h3\u003e\u003cp\u003eFor astrophotographers who demand speed, precision, and convenience in a compact package, the 6-inch RASA is the ultimate tool. Its f2.2 design dramatically shortens exposure times, making it easier to capture crisp, detailed images of faint deep-sky objects without the heavy burden of extended tracking. Since RASA technology debuted in 2014, it has become the trusted choice for space surveillance and satellite tracking, relied upon by defense contractors, professional researchers, and governments alike. Like its bigger brothers, RASA 6 features a flat field for sharp stars from edge to edge. With RASA 6, you get the same technology trusted by the pros, but at a price that is within reach for most, including those looking to add a second grab-and-go astrograph to their arsenal. RASA 6 defies the limitations of smaller and slower instruments. It collects more light and provides higher resolution than the refractors in its price range, allowing you to capture faint details in galaxies, nebulae, and star clusters in less time.\u003c\/p\u003e\u003ch3\u003eShorter Exposures for a ‘Near-Real Time’ Experience\u003c\/h3\u003e\u003cp\u003eThe magic of RASA 6 is in its speed. Its blazing f2.2 optics mean that even faint objects can be imaged in short exposures. When paired with sensitive cameras and live-stacking software on your laptop, you can create an almost real-time imaging experience. Bright, detailed images appear on your laptop screen in just a few short exposures. The system’s ultra-fast focal ratio also eases the tracking demands on your mount. Since it allows using much shorter sub-exposures, you won’t need to use an autoguider in many instances, so you’ll spend less time dealing with equipment and more time exploring the universe.\u003c\/p\u003e\u003ch3\u003eRASA Optical Design: Engineering Excellence\u003c\/h3\u003e\u003cp\u003eThe patented Rowe-Ackermann Schmidt optical design sets RASA 6 apart from other systems. This design features a Schmidt corrector and a high-precision primary mirror that work in tandem to minimize optical aberrations. A specialized three-element lens group using rare-earth glass, which ensures that more of the light emitted from celestial objects is sharply focused onto your sensor. A removable 2-inch clear filter, engineered to maintain peak f2.2 performance when you add a filter, as no extra glass is added into the light path. StarBright XLT coating system for all refractive and reflective surfaces guarantees maximum light transmission and superior field illumination. The RASA optical design provides better overall performance and field illumination than a Schmidt-Cassegrain in the Fastar-style configuration. It can be used with sensors up to 22mm diagonal to provide a wide 3.8 degrees while delivering sub-arcsecond resolution.\u003c\/p\u003e\u003ch3\u003eAdvanced Features and Versatility\u003c\/h3\u003e\u003cp\u003eDesigned with the modern astroimager in mind, RASA 6 is loaded with features that enhance usability and adaptability. The integrated filter drawer accepts both 1.25-inch and 2-inch filters, giving you the flexibility to use various imaging filters. The removable 2-inch clear filter (i.e. optical window) allows you to add optional filters if desired, without introducing additional glass into the optical path that could compromise performance at f2.2. A 12V MagLev fan pulls air through mesh vents to rapidly cool the system to the ambient temperature to provide best images while keeping internal components dust-free. The included camera adapter for the RASA 6 features standard M42 threads, making it easy to mount a wide variety of astronomical CMOS cameras.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46298112262201,"sku":"91071-CELESTRON","price":339.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0812\/8980\/5881\/files\/9qjxqygq2tyb_6fa4beb0-fbda-4e26-9ac8-ef0a6b806726.jpg?v=1786406782"},{"product_id":"celestron-advanced-vx800-8-inch-rasa-telescope-with-powertank-lithium-pro-bundle-0wummx","title":"Celestron Advanced VX800 8-Inch (RASA) Telescope with PowerTank Lithium Pro Bundle","description":"\u003cp\u003eCapture spectacular wide-field deep sky images in seconds with Celestron 8-Inch Rowe-Ackermann Schmidt Astrograph (RASA 8). This incredibly fast f\/2.0 system is the perfect companion to today’s color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, it’s easy to transport your 8-inch RASA to the most remote dark sky locations. This kit combines the 8-inch Rowe-Ackermann Schmidt Astrograph (RASA) with the strong-yet-portable Advanced VX (AVX) German equatorial mount.\u003c\/p\u003e\u003ch3\u003eRASA Performance Made for Everyone\u003c\/h3\u003e\u003cp\u003eThe 8-inch RASA is an imaging telescope that delivers a flat field without optical aberrations for razor sharp stars across a wide field of view. It can capture stunning deep-sky astronomical images without the challenges typically presented by longer focal length instruments at a fraction of the cost of those systems. With the 8-inch RASA, a wider range of astroimagers can enjoy the benefits of the RASA design. It includes features such as the integrated air-cooling system, internal filter mount, and sturdy CGE dovetail mounting bar. Purely designed for imaging, the 8-inch RASA cannot be used visually. The prime focus focal plane is located at the front of the optical system, so it cannot accommodate a traditional eyepiece.\u003c\/p\u003e\u003ch3\u003eShorter Exposure Times and Virtual Real-Time Observing\u003c\/h3\u003e\u003cp\u003eSince it is an f\/2.0 optical system, imagers can use shorter exposure times to capture detail in faint objects. When combined with sensitive cameras and the proper “live stacking-inch software, the 8-inch RASA can provide an almost real-time observing experience. View images on a computer instantly that are brighter and more detailed than can be seen in much bigger telescopes with the naked eye.\u003c\/p\u003e\u003ch3\u003eUnique Optical Design\u003c\/h3\u003e\u003cp\u003eRASA’s optical design is patented (US 2016\/0299331 A1) consisting of a Schmidt corrector, primary mirror, lens group, and optical window. The lens group contains 4 elements and utilizes rare-earth elements. Unlike many telescopes that only perform well over the visible spectrum (400-700nm), the optic is designed to perform over a wider spectral range, from 390-800nm. This allows more of the light emitted from the astronomical object to be sharply focused in the image.\u003c\/p\u003e\u003ch3\u003eUltra-Stable Focus System\u003c\/h3\u003e\u003cp\u003eWith the launch of the 8-inch RASA, Celestron is unveiling a new focuser design that mitigates lateral movement of the primary mirror when focusing, slewing, or tracking with the astrograph. Focusing is easier, more accurate, and more stable than ever. The key to the Ultra-Stable Focus System is two sets of precision bearings that are precisely aligned and tested during assembly to ensure optimal results.\u003c\/p\u003e\u003ch3\u003eAdvanced VX and Tripod\u003c\/h3\u003e\u003cp\u003eThe Advanced VX mount is designed to provide superior performance for smaller telescopes while taking advantage of Celestron’s most advanced technologies such as All-Star Polar Alignment, Celestron PWI telescope control software, SkyAlign, and permanently programmable periodic error correction (PPEC).\u003c\/p\u003e\u003ch3\u003eComputerized German Equatorial Mount\u003c\/h3\u003e\u003cp\u003eThe Advanced VX is the smallest of Celestron’s German equatorial mounts. The computerized GoTo capability automatically tracks objects as they move across the night sky. The Advanced VX mount includes ports for a hand control, an autoguider, and 2 AUX ports for optional accessories. The NexStar+ hand control gives you instant access to all the functions your mount has to offer. With automatic slewing and menu descriptions, astronomers of all skill levels can master this mount in just a few observing sessions. The Advanced VX also has an impressive tripod for its class with 2-inch diameter steel tripod legs, providing an extra-wide stance for improved stability.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":46298214236217,"sku":"12032-K1","price":599.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0812\/8980\/5881\/files\/5aaknfsf63fl_8f39a396-d642-43ec-85af-71208648e9dd.jpg?v=1786408132"}],"url":"https:\/\/focuscamera.shop\/collections\/astrograph-telescope.oembed","provider":"Portland Row","version":"1.0","type":"link"}