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Optical Design | Refractor |
---|---|
Aperture (mm) | 90 mm (3.54 in) |
Focal Length | 660 mm (26 in) |
Focal Ratio | 7.33 |
Focal Length of Eyepiece 1 (mm) | 25 mm (0.98 in) |
Magnification of Eyepiece 1 | 26 x |
Focal Length of Eyepiece 2 (mm) | 9 mm (0.35 in) |
Magnification of Eyepiece 2 | 73 x |
Finderscope | Built-on StarPointer |
Star Diagonal | 1.25 Erect Image |
Mount Type | Motorized Altazimuth |
Accessory Tray | No Tool, Quick release |
Tripod | Aluminum |
Highest Useful Magnification | 213 x |
Lowest Useful Magnification | 13 x |
Limiting Stellar Magnitude | 12.3 |
Resolution (Rayleigh) | 1.55 arc seconds |
Resolution (Dawes) | 1.29 arc seconds |
Light Gathering Power (Compared to human eye) | 165 x |
Apparent Field of View | 1.6 ° |
Linear Field of View (@1000 yds) | 84 ft (26 m) |
Optical Coatings | Fully-Coated |
Slew Speeds | Nine slew speeds |
Tracking Rates | Sidereal, Solar and Lunar |
Tracking Modes | Alt-Az, EQ North and EQ South |
Alignment Procedures | SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align |
Computer Hand Control | Fully Computerized / Flash Upgradeable |
Database | 4,000 Object Database |
Warranty | 2-year Telescope Warranty |
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