Home Telescopes and Mounts Binoculars
Home Telescopes and Mounts Binoculars

Stargate 18" Dobsonian

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 the 16 inch.

Easy to transport and assemble
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.

Optical Design: Dobsonian
Primary Aperture : 458mm (18”)
Secondary Diameter 120mm minor axis
econdary Obstruction by Area 7%
Mirror Coatings: 94% Aluminum
Glass Type: Borosilicate
Focal Length : 1900mm
Focal Ratio: 4.1
Light Gathering : Captures 27% more light than a 16” telescope
Zenith Eyepiece Height: 74.5”
Rayleigh Limit: 0.31
Dawes Limitt: 0.25
Limiting Magnitude: 15.9
Minimum Magnification: 65x
Maximum Magnification : 902x
GoTo: No
Focuser : Dual Speed Crayford
Eyepieces: 28mm LET eyepiece and 10mm eyepiece
Finder Scope: 9×50
counter weights: 2.3lbs
Shroud: Included
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

5 year maunfacturers warranty
Sold Out

©2011 Astro Pete's | Developed by Mediavision3D