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Sky-Watcher 18" Stargate Truss Tube Dobsinian For Sale


Sky-Watcher 18



This item has been shown 138 times.

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Sky-Watcher 18" Stargate Truss Tube Dobsinian:
$5,999

VISIT OUR store Sky-Watcher Stargate 450P 18″ Truss Dobsonian Telescope Condition: Brand New in Original Packaging SKU: S11900 Features

  • Focal lengthof 1900mm(f/4.1)
  • Fused conical parabolic mirrors
  • 94% reflectivity coatings
  • Minimalist all-metal structure
  • Truss-tubes break are 36"length for easy transport
  • Azimuth and altitude bearings are steel and Teflon
  • Spring loaded truss anchor points clearly labeled
  • Adjustable feet

Product Description

Sky-Watcher Stargate truss-tube Dobsonians are the biggest thing to happen to the astronomy market in quite some time. With the introduction of the 18"Stargate truss-tube Dobsonians, Sky-Watcher became the first telescope manufacturer to provide mass-market telescopes with this level of light gathering power. With this kind of aperture you’ll be able to view the most subtle planetary and deep sky phenomenon.

Design

The 18" Dobsonian has a focal lengthof 1900mm(f/4.1) giving the amateur astronomer a wider and deeper view of the night sky. Enjoy the truss-tube Stargate Dobsonianwith a 9x50straight through finderscope, eyepieces,stabilizing clamps, aribbed fabric shroudand a 2" dual speed Crayford focuser. The StargateDobsonian has the ability to show you views of our vast universe, with sights that'll blow your mind,take advantage of this magnificent tool.

Superior Optics

Stargates feature Sky-Watcher’s exclusive fused conical parabolic mirrors. The fused design allows for thinner mirror construction that provides faster cooling and lighter weight. Combined with the cast cellular secondary mirror and Sky-Watcher’s exclusive 94% reflectivity coatings, Stargate delivers bright, detailed views of your favorite deep sky objects. The 18 inch model captures 27% more light than Sky-Watchers' 16 inch model, allowing for more fun at all times.

Solid Foundations

The minimalist all-metal structure of the Stargate produces a sturdy and stable platform while maintaining a convenient and compact footprint. The truss-tubes break down to a very manageable 36 inch length for easy transport. Azimuth and altitude bearings are steel and Teflon for smooth, steady movement.

Setting up a Stargate is a simple procedure, taking only about 20 minutes. Spring loaded truss anchor points are clearly labeled to eliminate any frustration or confusion. Adjustable feet make leveling a snap.

What's in the Box

  • Sky-Watcher Stargate 450P 18" Truss DobsonianTelescope
  • 2" Dual Speed CrayfordFocuser
  • 3 x 2.3 lbs Counterweights
  • 9x50 Finderscope
  • 2” 28 mm LET Plössl Eyepiece
  • 1.25" 10 mm Plössl Eyepiece
  • Collimation Eyepiece
  • Stabilizing Truss Clamps
  • Ribbed Fabric Shroud
  • Cast metal rocker and base
  • Two Year Warranty

Specifications

  • Optical Design:Dobsonian
  • Primary Aperture (mm): 458mm (18”)
  • Secondary Diameter (mm): 120mm minor axis
  • Secondary Obstruction by Area: 7%
  • Mirror Coatings: 94% Aluminum
  • Glass Type: Borosilicate
  • Focal Length (mm):1900mm
  • Focal Ratio: 4.1
  • Light Gathering (compared to next size down): Captures 27% more light than a 16” telescope
  • Zenith Eyepiece Height: 74.5”
  • Rayleigh Limit: 0.31
  • Dawes Limit: 0.25
  • Limiting Magnitude: 15.9
  • Minimum Magnification: 65x
  • Maximum Magnification:902x
  • GoTo: No
  • Focuser: 2" Dual Speed Crayford
  • Included Eyepieces: 28mm LET eyepiece and 10mm eyepiece
  • Included Finder: 9x50
  • Other Included Items: 2.3lbs counter weights (3), Shroud, Truss clamps
  • Upper Cage Weight: 11lbs.
  • Truss Pole Weight: 2.6lbs each. 16lbs total
  • Mirror Box Weight: 62lbs.
  • Dobsonian Base Weight: 40lbs.
  • Fully Assembled Weight (with weights): 129lbs.

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