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Sky-Watcher 8" f/5.9 Collapsible GoTo Dobsonian Telescope
Sky-Watcher BK DOB 8" SYNSCAN

Sky-Watcher 8" f/5.9 Collapsible GoTo Dobsonian Telescope

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Your Price: CAD1,462.05
Retail Price:CAD1,539.00

Your Savings:CAD76.95(5%)

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Part Number:BD310251

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Sky-Watcher 8" f/5.9 Collapsible GoTo Dobsonian Telescope

"Sky-Watcher’s GoTo Dobsonian
High-tech meets bargain-telescope design. A shotgun marriage or a match made in heaven? We find out!"

"Could the new Sky-Watcher SynScan telescopes really work? ...my doubts were allayed the first night out.Our test telescope,on loan from Pacific Telescope Corp., worked great. Surprisingly so."

- Alan Dyer wrote in his 3-page review of the Sky-Watcher GoTo Dobsonian telescope at SkyNews November/December 2010 issue (www.skynews.ca | review).

Read the 3-page article in PDF (580KB)


Sky-Watcher improves on the often unwieldy standard design of Dobsonians with their 8" f/5.9 Collapsible GoTo Dobsonian Telescope. It features a patented truss tube system that enables the front corrector plate/eyepiece assembly to be moved back and locked against the main rear tube to greatly reduce the size of the OTA for storage and transportation. This open OTA also has the benefit of reducing overall weight versus standard Dobs. To add another level of usability to the scope is a motorized ground-based rocker alt-az mount. Equipped with dual servo motors, they are controlled using the SynScan computer hand controller. This self-contained system features over 42,000 celestial objects with alignment assistance, guided tours and full go-to capabilities. Its dual encoders, coupled with the patented Tension Control Handle, enable users to manually move the scope without having to realign it.

It features smaller 8" aperture parabolic mirror that captures enough light to make detailed observations of the Moon and planets, and still reach out past our solar system to discover brighter deep-sky subjects such as nebulae, globular clusters, and galaxies. Its smaller mirror gives it added portability, and the Crayford focuser's unique focusing mechanism gives it the ability to achieve tack-sharp focusing with zero back-lash that rack-and-pinion focusers generally are unable to achieve.

Optical Performance
  • 8" aperture
  • f/5.9 focal ratio
  • 1200mm focal length
  • Efficient, highly reflective mirrors increase image brightness
SynScan System
  • 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
Focuser
  • Crayford-style, single-speed
  • Accepts 2" eyepieces and accessories
  • Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
  • Includes 2-to-1.25" adapter
Mount
  • Alt-az rocker design
  • Teflon azimuth bearings
  • Teflon bearings and tension clutch on altitude axis
  • Tension control handle allows for smoother rotation to reduce vibrations and limit over-compensation
Eyepiece & Accessories
  • Eyepieces:
    • 4-element Plossl
    • 1.25" diameter barrel
    • 25mm yields 48x power
    • 10mm yields 120x power
  • Finderscope:
    • 8x50 erect-image
    • Right-angle viewing
Specifications
Optical Design Reflector
Aperture 8" / 203 mm
Focal Length 1200 mm
Focal Ratio f/5.9
Eyepiece Barrel Diameter 2" directly to focuser
1.25" with included adapter
Diagonal N/A
Finderscope 8x50 right angle erect-image
Tripod None
Mount Type Motorized alt-az
Power Source 10 - 15 VDC 1 A
2.1 mm plug
Optical Tube Dimensions Not specified by manufacturer
Weight Tube: 24.2 lb / 11.0 kg
Base: 33.0 lb / 15.0 kg
Assembled: 57.2 lb / 26.0 kg

Packaging Info
Package Weight 85.5 lb
Box Dimensions (LxWxH) 42.0 x 36.0 x 15.0"

In the Box
Sky-Watcher 8" f/5.9 Collapsible GoTo Dobsonian Telescope
  • 8x50 Finderscope
  • 10mm Plossl Eyepiece
  • 25mm Plossl Eyepiece
  • 2"-to-1.25" Adapter
  • Limited One-Year Warranty



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