ASA EQ800
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Ritchey-Chrétien equatorial telescope f6.85 0.8m (800mm) Ritchey-Chrétien equatorial telescope f6.85 Main Facts
Optical design
Ritchey-Chrétien RC
Linear central obstruction
41%
Focal length
5480mm
Focal ratio system
f6.85
Clear Aperture / Focal Ratio Primary Mirror
800mm (31.5inch) / f2.5
Image field
120mm (1.25 degrees)
Mirror material
Fused silica
Surface quality
>94 strehl
Microroughness
1nm RMS / <0.7nm Ra
Coating
Al+SiO2 >91%
Back Focus from flange
345.73mm
Weight tube
800kg (1764lbs) |