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Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo
SynScan automation supports the collapsible system in Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo, combining a 254mm parabolic mirror, 1200mm focal length, f/4.7 optics, GoTo control, dual encoders, motorized base, finder, and hand controller.
- 254mm parabolic Newtonian reflector
- 1200mm focal length, f/4.7 optics
- Collapsible FlexTube telescope design
- SynScan computerized GoTo Dobsonian base
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Description
Featuring automated SynScan GoTo tracking and an 800mm collapsible truss frame, the Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo 10-inch reflector telescope delivers 0.46 arcseconds Dawes resolving power. Built with a 254mm (10.00 in) aperture and a 1200mm focal length at f/4.7, this computerized system reaches magnitude 14.7 for high-aperture deep-sky exploration.
The Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo utilizes a parabolic primary mirror made from low-expansion borosilicate optical glass with 94% reflective aluminum and silicon dioxide (SiO2) coatings. Its collapsible truss-tube assembly retracts to 800mm for manageable transport. Supported by a computerized SynScan alt-azimuth GoTo base with DC servo motors and Freedom-Find dual encoders, the 15.00 kg (33.07 lbs) OTA provides automated celestial tracking without lost manual coordinates.
Key Features of Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo
Built for high-aperture automated GoTo visual exploration and planetary video tracking, this 10-inch Sky-Watcher FlexTube Dobsonian pairs a fast parabolic mirror with a computerized SynScan base. Its Freedom-Find dual encoders allow manual movement without losing computerized alignment coordinates.
- 254mm (10.00 in) aperture with 1200mm focal length and fast f/4.7 optical speed
- Precision parabolic primary mirror made from low-expansion borosilicate glass
- 94% reflective aluminum optical coatings with protective silicon dioxide layer
- Small 22.8% secondary obstruction by diameter (58mm minor axis, 5.2% by area)
- Collapsible FlexTube truss system retracting to 800mm for easy transport
- SynScan computerized alt-azimuth GoTo Dobsonian base with DC servo motors
- Freedom-Find dual-encoder technology allowing manual panning without lost alignment
- 9×50 finderscope, SynScan hand controller, 12V power cable, and eyepieces included
10-Inch Parabolic Optics & Collapsible Truss Structure
The 254mm parabolic primary mirror delivers immense light-gathering capability without spherical aberration, revealing delicate arms in spiral galaxies and fine lunar rilles. This motorized Sky-Watcher Dobsonian supports useful visual and planetary tracking magnifications from 36.3x up to 508x.
SynScan Computerized GoTo Base & Freedom-Find Encoders
Automated tracking precision makes exploring faint deep-space targets effortless. The Skyliner 250P FlexTube GoTo features a motorized base with a SynScan controller containing a 42,000+ object database. Its Freedom-Find dual encoders allow observers to manually reposition the telescope at any time without resetting computerized alignment settings.
- Computerized SynScan GoTo tracking base equipped with quiet DC servo motors
- Freedom-Find auxiliary dual encoders allowing manual repositioning without lost alignment
- Heavy-duty side altitude mounting trunnions with integrated motorized clutches
Sky-Watcher SynScan GoTo Series Warranty
The Skywatcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo is backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the collapsible 254mm FlexTube OTA, motorized SynScan base, SynScan hand controller, 12V power cable, 9×50 finderscope, and Super 25mm and 10mm eyepieces.
Sky-Watcher Dobson N 254/1200 Skyliner FlexTube BD DOB GoTo Specs
| Parameter | Specification |
|---|---|
| Brand | Sky-Watcher |
| Full Model Code / SKU / MPN | 10225 (SK-DOB-10-GOTO) |
| Country of Origin | China |
| Series / Product Line | Skyliner FlexTube / SynScan GoTo Series |
| Optical Design | Newtonian Reflector (Parabolic Primary Mirror, Collapsible Truss-Tube Architecture) |
| Clear Aperture | 254 mm (10.00 in) |
| Focal Length | 1200 mm |
| Focal Ratio | f/4.7 |
| Optical Coatings / Substrate Treatment | Aluminized with Silicon Dioxide (SiO2) Protective Overcoat (94% Reflectivity) |
| Central Obstruction | 22.8% by diameter / 5.2% by area (58 mm secondary mirror minor axis) |
| Glass Substrate / ED Element Spec | Borosilicate Optical Glass (Low Thermal Expansion Parabolic Substrate) |
| Corrected Image Circle / Sensor Coverage | 28 mm (Visual Field) |
| Standard Back Focus / Flange Focal Distance | Not Disclosed by Manufacturer (Standard Visual Configuration) |
| Diffraction-Limited Theoretical Resolving Power | 0.46 arcseconds |
| Limiting Visual Stellar Magnitude | 14.7 mag |
| Highest Useful Magnification | 508x |
| Lowest Practical Magnification | 36.3x |
| Focuser Architecture & Reduction Ratio | 2-inch Crayford Focuser with 1.25-inch Adapter (Single Speed) |
| Optical Tube Assembly (OTA) Dry Weight | 15.00 kg (33.07 lbs) |
| OTA Physical Dimensions | 800 mm collapsed / 1120 mm extended length, 288 mm tube diameter |
| Included Mechanical Mounting Interface | Heavy-Duty Side Altitude Mounting Trunnions with Integrated Motor Clutches |
| Mount & Drive Type Included | SynScan Computerized Alt-Azimuth GoTo Dobsonian Base with Freedom-Find Dual Encoders and DC Servo Motors |
| Verified Factory In-Box Inclusions | Collapsible FlexTube OTA, Motorized SynScan Base, SynScan Hand Controller, 12V Power Cable, 9x50 Optical Finderscope, Super 25mm and 10mm Eyepieces |
| Factory Warranty Coverage | 2-Year Limited Warranty |
| Primary Optical Application & Astronomical Target Profile | High-Aperture Automated GoTo Visual Observation, Planetary Video Tracking, Faint Deep-Sky Object Auditing |
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