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telescope computerized 90 LCM
telescope refractor, D90mm, F660mm, f/7.3
computerized telescope GoTo, 4,000 Object Database
- Manufacturer: Celestron
- Weight: 6.800 Kgs
| 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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