{"product_id":"celestron-36cm-rowe-ackermann-schmidt-astrograph-rasa-36-91077","title":"Celestron 36cm Rowe Ackermann Schmidt Astrograph V2 - RASA 36 (91078)","description":"\u003ch2 style=\"font-size: 23.04px;\"\u003eCelestron 36cm Rowe Ackermann Schmidt Astrograph V2\u003c\/h2\u003e\n\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 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.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\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.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRASA 36 cm’s ample back-focus distance (77.5 mm) accommodates a wide variety of imaging sensors. A custom camera adapter can be added for a field of view up to 4.4 degrees.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eImportant freight requirement – RASA 36 is a professional-caliber, high-precision instrument. It is manufactured and aligned to an exacting standard to provide exceptional optical performance. The telescope has been packaged to ensure it retains alignment and resulting performance during transport. However, due to the weight, size, and known stresses of shipping via parcel service, Celestron has determined that the ideal transport is a palletized delivery via LTL truck freight. For all domestic deliveries, Celestron will ship via this method. We also require this shipping method for all deliveries from Celestron dealers to end customers. \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eAdditional Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\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\/li\u003e\n\u003cli\u003eIntegrated cooling fan helps optics cool down to ambient temperature and pulls air through vents with micromesh to prevent dust ingress\u003c\/li\u003e\n\u003cli\u003eDual dovetail bars offer flexibility to mount the optical tube and conveniently attach additional accessories. Accomodates “CGE\/Losmandy” style dovetails.\u003c\/li\u003e\n\u003cli\u003eTwo sets of 2x threaded insert holes in the rear cell provide additional mounting options\u003c\/li\u003e\n\u003cli\u003eMove and mount your optical tube with ease with carrying handles on the rear cell\u003c\/li\u003e\n\u003cli\u003eAlthough not normally needed, there are 3x sets of push-pull screws to adjust the lens group to achieve optical alignment for the entire system\u003c\/li\u003e\n\u003cli\u003eIncludes M48 camera adapter\u003c\/li\u003e\n\u003cli\u003eMotor system specifically designed for the RASA 36 cm focuser is manufactured by Starlight Instruments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\" style=\"box-sizing: inherit; border-collapse: collapse; border-spacing: 0px; text-align: left; width: 1200px; color: #333e48; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003cthead style=\"box-sizing: inherit;\"\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 0px;\"\u003e\n\u003cth style=\"box-sizing: inherit; padding: 13px; font-size: 16px; height: 50px; background-color: #f6f7f9; font-weight: bold; text-transform: uppercase;\"\u003eOPTICAL TUBE INFO:\u003c\/th\u003e\n\u003cth style=\"box-sizing: inherit; padding: 13px; font-size: 16px; height: 50px; background-color: #f6f7f9; font-weight: bold; text-transform: uppercase;\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody id=\"spec-block-1\" style=\"box-sizing: inherit;\"\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Design:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eRowe-Ackermann Schmidt Astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eAperture:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e355.6mm (14\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFocal Length:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e790mm (31.1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFocal Ratio:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003ef\/2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eCentral obstruction diameter:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e158mm (6.22\")(44% of aperture diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eLight Gathering Power (Compared to human eye):\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e2581X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eResolution (Rayleigh):\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e0.39 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eResolution (Dawes):\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e0.36 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eImage circle:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e60.1mm (2.36\") Ø, 4.4°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eUseable field:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e70mm (2.75\") Ø, 5.1°, only minimal performance loss at edge of FOV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eWavelength range:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e400 – 900 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eSpot size:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e\u0026lt; 6.3 μm RMS across FOV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical coatings:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eEnhanced aluminum, XLT Multi-Coated throughout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOff-axis Illumination:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e83% at 30mm (1.18\") off-axis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical window:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e104mm (4.09\") Ø\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eBack focus with included camera adapter:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e55mm (2.16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eBack focus from top of threaded collar:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e77.5mm (3.05\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Tube:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Tube Length:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e1079.5mm (42.5\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Tube Diameter:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e406.4mm (16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFocuser:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eNew focuser design, minimizes focus shift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eFinderscope:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Tube Weight:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e75 lbs (34.02 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOther features:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eVentilation fan, dual dovetail mounting bars\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 0px;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eIncluded Items:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e48mm (1.89\") camera adapter\u003cbr style=\"box-sizing: inherit;\"\u003eFan battery pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCelestron 36cm Rowe Ackermann Schmidt Astrograph\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e48 mm Camera Adapter\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFan Battery Pack\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDual Dovetail Mounting Bar\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e\n\u003cbr\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125774942437,"sku":"CEL-91078","price":20850.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-36cm-rowe-ackermann-schmidt-astrograph-v2-rasa-36-91078-astronomy-plus-1.webp?v=1690485453","url":"https:\/\/istronomyplus.com\/products\/celestron-36cm-rowe-ackermann-schmidt-astrograph-rasa-36-91077","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}