The GSO Dobson telescope N 406/1829 Truss DOB is a 16-inch light giant for advanced observers. With a 406-mm mirror, you'll capture enough light to see details in the faintest deep-sky objects. Spiral arms of galaxies, filaments in emission nebulae and countless stars in globular clusters become visible in a way that is simply not feasible with smaller telescopes.
The truss design makes transport surprisingly practical: You disassemble the tube in individual segments that fit in an ordinary car, without special tools. Once assembled, the sturdy rocker box is stable and the telescope moves smoothly in elevation and azimuth.
The parabolic main mirror has a high-quality quartz coating with 94% reflectance and is supported by a fan that ensures rapid cooling. The Crayford focuser with 1:10 micro adjustment makes accurate focusing easy, even at the high magnifications this telescope allows. The adjustable friction brake on the elevation axis keeps the tube perfectly balanced, even with heavy eyepieces or accessories.
Application
The GSO 16-inch Dobson will open a new chapter in deepsky observation:
- Galaxies such as M51 (Whirlpool Galaxy) clearly show spiral structures.
- Emission nebulae such as the Veil Nebula show fine filaments.
- Globular clusters like M13 disintegrate into thousands of individual stars.
- Planets like Jupiter and Saturn show contrast and detail that smaller telescopes do not achieve.
This telescope is ideally suited for advanced users who want to make a big jump in aperture. For beginners, this instrument is less suitable because of its weight, size and optical power.
Specifications
Optics
- Type: Newton reflector
- Opening: 406 mm
- Focal length: 1829 mm
- f/ratio: f/4.5
- Resolution: 0.34″
- Boundary magnitude: 14.8 mag
- Light output: 3360× relative to the naked eye
- Max. useful magnification: 812×
- Tube: Truss (open tube)
- Mirror: Parabolic BK7 glass with quartz coating (94% reflection)
- Fan: Yes
Focuser
- Crayford 2″ with 1:10 micro adjustment
- Adapter: 2″ / 1.25″
Mount
- Dobson Rockerbox
- High-axis with adjustable friction brake
- Azimut with steel roller bearings
Included
- 30 mm 2″ eyepiece
- 9 mm 1.25″ eyepiece
- 8×50 viewfinder
- Adapter 2″ / 1.25″
- Fan and battery holder (8× AA)
- Handle, dust caps, extensions
General
- Weight total: 65 kg
- Visual use: Moon, planets and deepsky objects
- Not suitable for astrophotography
- Recommended for advanced students
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