Sky-Watcher 8" GoTo Collapsible Dobsonian Telescope

Sky-Watcher 8" GoTo Collapsible Dobsonian Telescope
Item # SW-S11800
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  • The Sky-Watcher 8" GoTo Collapsible Dobsonian is an an ideal telescope for wide-field, deep-space observation of faint galaxies, nebulae, and star clusters.
  • Easily find over 42,000 celestial objects with the SynScan AZ Controller!
  • The innovative truss-support system lets you collapse the optical tube of the Sky-Watcher 8" Dobsonian down for storage and travel. No need to keep removing and re-installing individual truss supports every time you set up or break down...this unique design keeps the trusses right where they belong.
  • Accessories include the SynScan hand controller, an 8 X 50 Right Angle Finder, two 1.25" Plossl eyepieces, a 2" Crayford Focuser with 1.25" Adapter, and a Dust Cover.


Sky-Watcher 8" Computerized Collapsible Dobsonian Telescope

The 8" Sky-Watcher Dobsonian SynScan is precision engineered telescope that will allow you to easily find and enjoy night sky treasures like Saturn, Jupiter, and other planets in the solar system, plug a huge array of deep-sky objects including galaxies, star clusters, nebulae, and more.   With its patented collapsible tube design, the Sky-Watcher 8" Collapsible GoTo Dobsonian is truly the ultimate in portability and performance.

The elegant truss tube design of the Sky-Watcher S11800 Dobsonian was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards and allowing the telescope to stay where you put it for as long as you like.

The Sky-Watcher SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Sky-Watcher 8" SynScan Dobsonian combines the convenience and affordability of the traditional Dobsonian with the high-tech features of a computerized Go-To telescope.

Sky-Watcher 8" GoTo Collapsible Dobsonian Telescope Specifications


  • Optical Design:  Newtonian Reflector
  • Aperture:  203 mm (8 in)
  • Focal Length:  1200 mm
  • Focal Ratio  f/5.9
  • Focal Length of Eyepiece 1 (mm)  25 mm
  • Focal Length of Eyepiece 2 (mm)  10 mm
  • Finderscope  8x50 RA Viewfinder
  • Highest Useful Magnification  406x
  • Limiting Stellar Magnitude  14.2
  • Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
  • Motor type: DC Servo Motors
  • Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
  • Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
  • Tracking Rates: Sidereal, Lunar, Solar
  • Tracking Mode: Dual Axes Tracking
    Alignment Method: Brightest-Star Alignment, Two-Star Alignment
  • Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
  • Go-To Pointing Accuracy: Up to 5 arc min
Additional Information

Additional Information

SKU SW-S11800
UPC Code 50234118002
Manufacturer Sky-Watcher
Telescope Series Sky-Watcher Dobsonian
Optical Design Newtonian Reflector - Open Truss
Mount Type Dobsonian Cradle with GoTo
Warranty 1 Year Warranty
Telescope Aperture 8"
Telescope Focal Length 1200mm
Telescope Focal Ratio f/6
Highest Useful Magnification 472x
Limiting Stellar Magnitude 14
Optical Coatings Aluminum
Dew Shield Included? No, Not Necessary
Eyepiece(s) Included 10mm, 25mm
Focuser Size 2"
Focuser Style Crayford
Manual or Electronic Focusing? Manual
Focusing Speeds One-Speed
Optical Tube Outer Diameter 205mm
Length of Optical Tube 44.5"
Optical Tube Weight 24.2 lb.
Tube Color or Finish Gloss Black
Finder Included 8 x 50 Optical Finder
Mount Weight 34.39 lb.
Alignment Procedure 2-Star Alignment, Brightest Star
Objects in Database 42,000+
Hand Controller Included? Yes
Counterweights Included N/A
Tripod Type Included None, Not Required
Total Telescope Weight 58.84 lb.
Included Items

Included Items

  • 8" f/6 GoTo Collapsible Dobsonian Telescope
  • SynScan GoTo Hand Control & Cables
  • 8 x 50 RA Finderscope & Bracket
  • 2" Crayford Focuser
  • 1.25" Adapter
  • 10mm Plossl Eyepiece (1.25")
  • 25mm Plossl Eyepiece (1.25")
  • Dust Cover
  • Eyepiece Tray
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