Celestron NexStar Evolution 6 150mm f/10 Schmidt-Cassegrain GoTo Telescope - Manual (Page 24)

24 I ENGLISH
NexStar Evolution 8 Telescope
Optical Design Schmidt Cassegrain
Aperture 203 2mm
Focal Length 2032mm
Focal Ratio 10
Focal Length of Eyepiece 1 40mm
Focal Length of Eyepiece 2 13mm
Magnification of Eyepiece 1 51x
Magnification of Eyepiece 2 156x
Finderscope StarPointer, uses 3V CR2032 lithium button battery
Star Diagonal 1 25”
HIghest Useful Magnification 480x
Lowest Useful Magnification 29x
Limiting Stellar Magnitude 14
Resolution (Rayleigh) 0 69 arc seconds
Resolution (Dawes) 0 57 arc seconds
Light Gathering Power (Compared to human eye) 843x
Secondary Mirror Obstruction 2 5” (64mm)
Secondary Mirror Obstruction by Area 9 77%
Optical Coatings StarBright XLT
Optical Tube Length 17”