{"product_id":"celestron-sc-xlt-11-optical-tube","title":"Celestron SC-XLT - 11\" (Optical Tube)","description":"\u003cp\u003eSchmidt-Cassegrain telescope with 280mm aperture, optics with Celestron StarBright™ XLT multi-coating, 2800mm focal length, eyepiece holder 1¼\", zenith prism 1¼\", eyepiece Plössl 40mm (70x), 9x50 finder scope, prism rail for CGE mount.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpec:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptical design: Schmidt-Cassegrain\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptical coating: Starbright XLT (Fully multi-coated)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTelescope aperture: 279.4mm (11\")\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFocuser size (inches): 3.3\" \u0026amp; 2\" SC thread, 1.25\"\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube (material): Aluminum\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube weight: 12.5kg\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTube length: 24 in (610mm)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAperture ratio: f\/10\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution (DAWES): 0.41 arcseconds\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution (RAYLEIGH): 0.50 arcseconds\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFocal length: 2800mm (110 in)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecondary mirror obstruction: 9.5cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecondary mirror obstruction relative to diameter: 34%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSecondary mirror obstruction relative to surface: 11.60%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVisual field: 0.71°\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLimit size: 14.7\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHighest useful magnification: x661\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLight gathering capacity (compared to the human eye) x1593\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eWhats included:\u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cem\u003eFocal length eyepiece: 40mm\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eIncl. accessories: 11\" Schmidt-Cassegrain telescope, 6x50 finder, 1.25 zenith prism, eyepiece, 1.25\" eyepiece holder (visual back), 3\" rail (Losmandy style)\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eViewfinder: 6x30\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eZenith prism: 1.25\" diagonal prism\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eDovetail compatible: CGE (3\" Losmandy style)\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":49749217247567,"sku":"820170X","price":2478.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/1924\/6275\/files\/Celestron-XLT-1100-Telescope_2.webp?v=1727349186","url":"https:\/\/www.horizonastronomy.ie\/en-mc\/products\/celestron-sc-xlt-11-optical-tube","provider":"Horizon Astronomy • Telescope Center","version":"1.0","type":"link"}