ASA800 Ritchey-Chrétien f6.85 telescope
The evolution milestone of telescopes.
The ASA800 0.8m is the largest aperture OTA offered from ASA without mount. Perfect fit for the ASA direct drive mounts with absolute encoders. As all ASA telescopes the ASA800 is equipped with quartz glass optics from ASA Our optics guarantee diffraction limited performance and best micro roughness numbers even under the most perfect earthbound astronomical seeing conditions while maintaining a fast f-ratio primary mirror design leading to less obstruction, higher contrast and a more compact system.
f6.85/f2.5 full carbon Richey-Chrétien design with absolute encoder secondary mirror focusing unit.
FROM € 165,000.- net
Main Facts
Ritchey-Chrétien RC
41%
5480mm
f6.85
800mm (31.5 inch) / f2.5
120mm (1.25 degrees)
Fused silica
>94 strehl
1nm RMS / <0.7nm Ra
Al+SiO2 >96 %
345.73mm
246kg (542lbs)
RC & CDK Comparison
Technical Details
Our closed loop direct drive systems, sensor technology and observatory safety modules play a major role in achieving optimum results. All moving accessory components are equipped with high-resolution encoders and closed-loop feedback systems. We provide event timer modules, and customer updatable firmware.
ASA Services
Services for your telescope. Competitively priced for value with a complete ASA telescope and mount package!
ASA Accessoires
Accessoires for your telescope. Best price for value with a complete ASA telescope and mount package!

ASA In-house production
The competent partner that provides you with the whole package – ASA, guarantees the highest standard! Interferometric metrology, CNC machining, meter class optics, light weight mirrors, telescope systems, ground stations, assembly, factory testing and commissioning, everything is done by ASA itself.