Optical Design
Schmidt-Cassegrain
Aperture (mm)
234.95 mm (9.25 in)
Focal Length
2350 mm (93 in)
Formula:Focal Ratio
10
Focal Length of Eyepiece 1 (mm)
25 mm (0.98 in)
Formula:Magnification of Eyepiece 1
94 x
Finderscope
6x30
Star Diagonal
1.25
Optical Tube
Aluminum
Formula:Highest Useful Magnification
555 x
Formula:Lowest Useful Magnification
34 x
Formula:Limiting Stellar Magnitude
14.4
Formula:Resolution (Rayleigh)
0.59 arc seconds
Formula:Resolution (Dawes)
0.49 arc seconds
Formula:Light Gathering Power (Compared to human eye)
1127 x
Secondary Mirror Obstruction
3.35 in (85 mm)
Formula:Secondary Mirror Obstruction by Diameter
36%
Formula:Secondary Mirror Obstruction by Area
13%
Optical Coatings
StarBright / XLT
Optical Tube Length
22 in (559 mm)
Optical Tube Weight
20 lbs (9.07 kg)
Dovetail Compatibility
CG-5 Mount
