Sky-Watcher Stargate 500P SynScan Truss-Tube GoTo Dobsonian Telescope

Vendedor: Sky-Watcher

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Sky-Watcher Stargate 450P SynScan Truss-Tube GoTo Dobsonian Telescope

Sky-Watcher SKU: S11930 | Helix SKU: CTS11930


Stargate's 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 our 16 inch, while the 20 inch (a full half meter of aperture) boasts a monster 56% more light gathering power.


Stargate parts

Solid foundations, easy assembly

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.


Stargate SynScan GoTo computer system

Synscan puts the universe in your hands

Our GoTo line of Stargates provide motorized operation in both alt and azimuth axes. Featuring Sky-Watcher’s proprietary SynScan hand controller, your scope now automatically slews to and tracks over 42,900 celestial objects from the on-board database.

Sky-Watcher’s Freedom Find™ dual-encoder technology ensures accurate tracking while allowing you to move the telescope manually in either axis without compromising alignment. This provides a level of convenience and flexibility not available in telescopes without dual encoders.

  • Fused conical primary mirror
  • Cellular secondary mirror
  • Dual speed 2” Crayford focuser
  • Two section truss poles (compact transport)
  • Minimalist, all metal construction
  • Fast f/3.95 optics for short eyepiece heights
  • 20” provides 56% more light than a 16” telescope
  • 94% reflectivity coatings
  • Freedom Find, dual encoders
  • SynScan with 42,000+ object database



SKU S11930
Optical Info
Optical Design Newtonian
Mirror Coatings 94% Aluminum
Glass Type Borosilicate
Primary Aperture (mm) 508
F/Ratio 3.93
Focal Length (mm) 2000
Secondary Diameter 134mm
Secondary Obstruction (by diameter) 26%
Secondary Obstruction by Area 7%
Observational Info
Dawes Limit 0.23
Rayleigh Limit 0.28
Limiting Mag. 16
Minimum Magnification 72
Maximum Magnification 1000
Light Gathering (compared to next size down) 23%
General Info
GoTo Yes
Object Database 42,900+
Dual Encoders Yes
Focuser 2" Dual Speed Crayford
Zenith Eyepiece Height 79"
Dob Base Weight 66 lbs
Upper Cage Weight 12 lbs
Truss Pole Weight 2.6 lbs each. 16 lbs total
Mirror Box Weight 70 lbs
Full Assembled Weight (with weights) 164 lbs
Included Finder 9x50 Finder
Included Diagonal No
Included Eyepieces 28 LET/10mm/Coll.
Magnification w/ Included Eyepieces 71x/200x
Included Case No
Corrector No
Other Included Accessories 2.3lbs counter weights (3), Shroud, Truss clamps


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