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Sky-Watcher Stargate 500P Truss-Tube Dobsonian Telescope

Sky-Watcher SKU: S11910 | Helix SKU: CTS11910

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.

Specifications:

SKU
S11910

UPC
050234119108

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

Focuser
2" Dual Speed Crayford

Zenith Eyepiece Height
79"

Dob Base Weight
40 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)
138 lbs

Accessories

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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Filed under: High-End Telescope Auctions (USA)