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Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo Specs
| Brand | Sky-Watcher |
| Full Model Code | Sky-Watcher Skyliner-250P FlexTube Computerized SynScan GoTo Collapsible Dobsonian Telescope |
| Country of Origin | China (Manufactured) |
| Optical Design | Newtonian Reflector (Parabolic Primary Mirror Layout with Planar Secondary Mirror) |
| Aperture | 254 mm (10.00 inches) |
| Focal Length | 1200 mm |
| Focal Ratio | f/4.72 |
| Optical Coatings | Aluminized Mirror Coating Surface Matrix with Protective Silicon Dioxide Overcoat Shield |
| Glass Material | Standard Borosilicate Glass Substrate with stable thermal response parameters |
| Secondary Mirror Obstruction | 58 mm |
| Secondary Mirror Obstruction by Diameter | 22.83% |
| Secondary Mirror Obstruction by Area | 5.21% |
| Resolving Power | 0.46 Arcseconds (Dawes), 0.54 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 14.1 |
| Highest Useful Magnification | 508x |
| Lowest Useful Magnification | 36x |
| Optical Tube Material | Patented Collapsible Truss FlexTube Multi-Rod Slideway Frame with Sheet Steel Lower Core |
| Focuser Style & Mechanism | 2-inch Dual-Speed Crayford Focuser Assembly featuring 10:1 Micro-Focus Reduction Gear Drive |
| Mirror Lock Mechanism | No (Equipped with standard manual spring-tensioned cell adjustment bolts) |
| Optical Tube Dimensions | 288 mm x 800 mm (Truss collapsed layout) / 288 mm x 1120 mm (Extended configuration) |
| Optical Tube Weight | 14.30 kg (31.53 lbs) (OTA Only) / 32.00 kg (70.55 lbs) (Complete Motorized Setup Weight) |
| Mount Attachment Type | Heavy-Duty Side Pivot Plates secured into a Motorized Alt-Azimuth Wood Base Enclosure |
| Finder Scope Specification | 9x50 Optical Straight-Through Finder Scope Kit Complete with O-Ring Alignment Bracket |
| Included Accessories | 254mm Collapsible Newtonian OTA, Motorized GoTo Base, SynScan Hand Controller, 9x50 Finder, 25mm Eyepiece, 10mm Eyepiece |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Automated visual object screening and tracking loops, tracking dim intergalactic targets across a wide 10-inch path with precise internal step motors and positional encoders. |
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