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

Sky-Watcher SKU: S11920 | Helix SKU: CTS11920

Overview

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.

Specifications:

SKU
S11920

Optical Info

Optical Design
Newtonian

Mirror Coatings
94% Aluminum

Glass Type
Borosilicate

Primary Aperture (mm)
458

F/Ratio
4.14

Focal Length (mm)
1900

Secondary Diameter
120mm

Secondary Obstruction (by diameter)
26%

Secondary Obstruction by Area
7%

Observational Info

Dawes Limit
0.25

Rayleigh Limit
0.31

Limiting Mag.
15.9

Minimum Magnification
65

Maximum Magnification
902

Light Gathering (compared to next size down)
27%

General Info

GoTo
Yes

Object Database
42,900+

Dual Encoders
Yes

Focuser
2" Dual Speed Crayford

Zenith Eyepiece Height
74.5"

OTA Length (Retract/Ext.)
78.75"

OTA Outer Diameter
20.5"

Dob Base Weight
66 lbs

Upper Cage Weight
11 lbs

Truss Pole Weight
2.6 lbs each. 16 lbs total

Mirror Box Weight
62 lbs

Full Assembled Weight (with weights)
155 lbs

Accessories

Included Finder
9x50 Finder

Included Diagonal
No

Included Eyepieces
28 LET/10mm/Coll.

Other Included Accessories
2.3lbs counter weights (3), Shroud, Truss clamps

 

 




 






















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Filed under: High-End Telescope Auctions (USA)