{"product_id":"asa-az800-ritchey-chretien-telescope-f6-85","title":"ASA AZ800 Ritchey-Chrétien telescope f6.85","description":"\u003ch3 data-end=\"159\" data-start=\"140\"\u003e\u003cstrong data-end=\"157\" data-start=\"144\"\u003eASA AZ800\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"222\" data-start=\"160\"\u003e\u003cstrong data-end=\"222\" data-start=\"160\"\u003eA high-end, fully integrated observatory telescope system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"692\" data-start=\"224\"\u003eThe \u003cstrong data-end=\"241\" data-start=\"228\"\u003eASA AZ800\u003c\/strong\u003e is a 0.8-meter (800mm) \u003cstrong data-end=\"302\" data-start=\"265\"\u003eRitchey-Chrétien telescope system\u003c\/strong\u003e designed for precision astrophotography and advanced observational research. Featuring a fast \u003cstrong data-end=\"422\" data-start=\"397\"\u003ef\/6.85 optical system\u003c\/strong\u003e with \u003cstrong data-end=\"445\" data-start=\"428\"\u003eNasmyth focus\u003c\/strong\u003e, \u003cstrong data-end=\"470\" data-start=\"447\"\u003edirect-drive motors\u003c\/strong\u003e, and \u003cstrong data-end=\"497\" data-start=\"476\"\u003eabsolute encoders\u003c\/strong\u003e on all axes, the AZ800 delivers superior performance in both imaging and tracking. This fully automated Alt-Az mounted system is engineered for reliability, speed, and scientific-grade accuracy.\u003c\/p\u003e\n\u003chr data-end=\"697\" data-start=\"694\"\u003e\n\u003ch3 data-end=\"725\" data-start=\"699\"\u003e\u003cstrong data-end=\"725\" data-start=\"703\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"772\" data-start=\"729\"\u003e\u003cstrong data-end=\"748\" data-start=\"729\"\u003eOptical Design:\u003c\/strong\u003e Ritchey-Chrétien (RC)\u003c\/p\u003e\n\u003cp data-end=\"812\" data-start=\"775\"\u003e\u003cstrong data-end=\"794\" data-start=\"775\"\u003eClear Aperture:\u003c\/strong\u003e 800mm (31.5 in)\u003c\/p\u003e\n\u003cp data-end=\"854\" data-start=\"815\"\u003e\u003cstrong data-end=\"846\" data-start=\"815\"\u003eClear Aperture \/ Focal Ratio Primary Mirror:\u003c\/strong\u003e f\/2.5\u003c\/p\u003e\n\u003cp data-end=\"889\" data-start=\"857\"\u003e\u003cstrong data-end=\"880\" data-start=\"857\"\u003eSystem Focal Ratio:\u003c\/strong\u003e f\/6.85\u003c\/p\u003e\n\u003cp data-end=\"918\" data-start=\"892\"\u003e\u003cstrong data-end=\"909\" data-start=\"892\"\u003eFocal Length:\u003c\/strong\u003e 5480mm\u003c\/p\u003e\n\u003cp data-end=\"953\" data-start=\"921\"\u003e\u003cstrong data-end=\"937\" data-start=\"921\"\u003eImage Field:\u003c\/strong\u003e 120mm (1.25°)\u003c\/p\u003e\n\u003cp data-end=\"995\" data-start=\"956\"\u003e\u003cstrong data-end=\"980\" data-start=\"956\"\u003eCentral Obstruction:\u003c\/strong\u003e 41% (linear)\u003c\/p\u003e\n\u003cp data-end=\"1059\" data-start=\"998\"\u003e\u003cstrong data-end=\"1018\" data-start=\"998\"\u003eFocus Positions:\u003c\/strong\u003e Nasmyth 2 standard, Nasmyth 4 optional\u003c\/p\u003e\n\u003cp data-end=\"1097\" data-start=\"1062\"\u003e\u003cstrong data-end=\"1082\" data-start=\"1062\"\u003eMirror Material:\u003c\/strong\u003e Fused Silica\u003c\/p\u003e\n\u003cp data-end=\"1133\" data-start=\"1100\"\u003e\u003cstrong data-end=\"1120\" data-start=\"1100\"\u003eSurface Quality:\u003c\/strong\u003e \u0026gt;94 Strehl\u003c\/p\u003e\n\u003cp data-end=\"1177\" data-start=\"1136\"\u003e\u003cstrong data-end=\"1155\" data-start=\"1136\"\u003eMicroroughness:\u003c\/strong\u003e 1nm RMS \/ \u0026lt;0.7nm Ra\u003c\/p\u003e\n\u003cp data-end=\"1223\" data-start=\"1180\"\u003e\u003cstrong data-end=\"1192\" data-start=\"1180\"\u003eCoating:\u003c\/strong\u003e Al + SiO₂, Reflectivity \u0026gt;96%\u003c\/p\u003e\n\u003cp data-end=\"1263\" data-start=\"1226\"\u003e\u003cstrong data-end=\"1253\" data-start=\"1226\"\u003eBack Focus from Flange:\u003c\/strong\u003e 252.7mm\u003c\/p\u003e\n\u003cp data-end=\"1303\" data-start=\"1266\"\u003e\u003cstrong data-end=\"1283\" data-start=\"1266\"\u003eTotal Weight:\u003c\/strong\u003e 650 kg (1433 lbs)\u003c\/p\u003e\n\u003cp data-end=\"1335\" data-start=\"1306\"\u003e\u003cstrong data-end=\"1321\" data-start=\"1306\"\u003eMount Type:\u003c\/strong\u003e Alt-Azimuth\u003c\/p\u003e\n\u003cp data-end=\"1363\" data-start=\"1338\"\u003e\u003cstrong data-end=\"1356\" data-start=\"1338\"\u003eAzimuth Range:\u003c\/strong\u003e 680°\u003c\/p\u003e\n\u003cp data-end=\"1397\" data-start=\"1366\"\u003e\u003cstrong data-end=\"1385\" data-start=\"1366\"\u003eAltitude Range:\u003c\/strong\u003e 5° to 90°\u003c\/p\u003e\n\u003chr data-end=\"1402\" data-start=\"1399\"\u003e\n\u003ch3 data-end=\"1433\" data-start=\"1404\"\u003e\u003cstrong data-end=\"1433\" data-start=\"1408\"\u003ePerformance \u0026amp; Control\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1475\" data-start=\"1437\"\u003e\u003cstrong data-end=\"1456\" data-start=\"1437\"\u003eMax Slew Speed:\u003c\/strong\u003e Up to 50°\/second\u003c\/p\u003e\n\u003cp data-end=\"1542\" data-start=\"1478\"\u003e\u003cstrong data-end=\"1510\" data-start=\"1478\"\u003ePointing Accuracy (20°–85°):\u003c\/strong\u003e \u0026lt;8″ RMS (with pointing model)\u003c\/p\u003e\n\u003cp data-end=\"1627\" data-start=\"1545\"\u003e\u003cstrong data-end=\"1585\" data-start=\"1545\"\u003eTracking Accuracy (unguided, 5 min):\u003c\/strong\u003e \u0026lt;0.25″ RMS (with current pointing file)\u003c\/p\u003e\n\u003cp data-end=\"1668\" data-start=\"1630\"\u003e\u003cstrong data-end=\"1659\" data-start=\"1630\"\u003eSystem Natural Frequency:\u003c\/strong\u003e ≥10 Hz\u003c\/p\u003e\n\u003cp data-end=\"1751\" data-start=\"1671\"\u003e\u003cstrong data-end=\"1694\" data-start=\"1671\"\u003eSatellite Tracking:\u003c\/strong\u003e Supports TLE and CPF file upload with orbit correction\u003c\/p\u003e\n\u003chr data-end=\"1756\" data-start=\"1753\"\u003e\n\u003ch3 data-end=\"1788\" data-start=\"1758\"\u003e\u003cstrong data-end=\"1788\" data-start=\"1762\"\u003eSoftware \u0026amp; Integration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1980\" data-start=\"1790\"\u003eIncludes the full \u003cstrong data-end=\"1830\" data-start=\"1808\"\u003eASA Software Suite\u003c\/strong\u003e with platform-independent \u003cstrong data-end=\"1877\" data-start=\"1857\"\u003eASCOM Alpaca API\u003c\/strong\u003e over TCP\/IP. Compatible with a wide range of control programs and plugins, with advanced features for:\u003c\/p\u003e\n\u003cp data-end=\"2025\" data-start=\"1984\"\u003e-Pointing file creation and optimization\u003c\/p\u003e\n\u003cp data-end=\"2097\" data-start=\"2028\"\u003e-MLPT (Multi-Layer Pointing Technique) — usable with N.I.N.A. plugin\u003c\/p\u003e\n\u003cp data-end=\"2141\" data-start=\"2100\"\u003e-Satellite tracking and orbit correction\u003c\/p\u003e\n\u003cp data-end=\"2174\" data-start=\"2144\"\u003e-Focus control via Alpaca API\u003c\/p\u003e\n\u003cp data-end=\"2216\" data-start=\"2177\"\u003e-Dome and cover control (if installed)\u003c\/p\u003e\n\u003cp data-end=\"2266\" data-start=\"2219\"\u003e-Full API control of rotator and Nasmyth ports\u003c\/p\u003e\n\u003cp class=\"ce-headline-center\"\u003e \u003c\/p\u003e\n\u003cp class=\"ce-headline-center\"\u003e \u003c\/p\u003e","brand":"Astro Systeme Austria","offers":[{"title":"Default Title","offer_id":50647526179104,"sku":"ASA-AZ800-f6","price":300000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/2135\/2480\/files\/az800-f685-f25.png?v=1756435826","url":"https:\/\/firstlightastro.com\/products\/asa-az800-ritchey-chretien-telescope-f6-85","provider":"First Light Astro","version":"1.0","type":"link"}