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Optical Design
Schmidt-Cassegrain
Aperture (mm)
280 mm (11 in)
Focal Length
2800 mm (110 in)
Formula:Focal Ratio
10
Focal Length of Eyepiece 1 (mm)
40 mm (1.57 in)
Formula:Magnification of Eyepiece 1
70 x
Finderscope
8x50 Finderscope with quick release bracket
Star Diagonal
1.25
Mount Type
Dual Fork Arm
Accessory Tray
Leg Brace / Eyepiece holder
Tripod
Heavy Duty Steel Adjustable
Power Requirements
Car battery adapter
Formula:Highest Useful Magnification
661 x
Formula:Lowest Useful Magnification
40 x
Formula:Limiting Stellar Magnitude
14.7
Formula:Resolution (Rayleigh)
0.5 arc seconds
Formula:Resolution (Dawes)
0.41 arc seconds
Formula:Light Gathering Power (Compared to human eye)
1600 x
Apparent Field of View
0.6 °
Linear Field of View (@1000 yds)
32 ft (9.75 m)
Secondary Mirror Obstruction
3.75 in (95 mm)
Formula:Secondary Mirror Obstruction by Diameter
34%
Formula:Secondary Mirror Obstruction by Area
12%
Optical Coatings
Starbright XLT Coating
Total Telescope Kit Weight
93 lbs (42 kg)
Tracking Rates
Sidereal, Solar and Lunar
Tracking Modes
Altazimuth, EQ North and EQ South
Alignment Procedures