GSO Dobson telescope N 406/1829 Truss DOB

Dobsonian Telescopes: A Simple, High-Performance Design for Astronomy Enthusiasts

Dobsonian telescopes are celebrated for their simplicity and functionality in the field of astronomy. Designed as a straightforward yet ingenious instrument, these telescopes consist of two primary parts: the optics—usually a solid or truss tube design—and the mount, known as a "rocker box." The rocker box, a sturdy wooden base, allows the telescope to sit directly on the ground. This design enables users to begin observations right away, bypassing the lengthy setup typically required for complex mounts. The concept behind Dobsonian telescopes was to provide large apertures at affordable prices, a goal that has been achieved with great success. Since their introduction, Dobsonians have attracted a dedicated community that values their performance and accessibility.

The truss tube design further enhances the convenience of these telescopes, allowing for easy transport. This large telescope can be dismantled into a compact form with minimal effort and no special tools, fitting comfortably in a regular car.

Key Features of This 16" Dobsonian Telescope:

• Optics: Premium 406mm parabolic primary mirror with a fast f/4.5 aperture, delivering exceptional viewing experiences.
• Mirror Adjustment: Tool-free primary mirror alignment using non-slip knurled screws ensures stability.
• Cooling Fan: Positioned on the primary mirror’s rear, this fan enables quicker adaptation to ambient temperatures.
• Friction Brake: Adjustable vertical axis brake prevents the tube from shifting when heavy accessories are swapped.
• Smooth Movement: Steel roller bearings with metal plates on the azimuth axis allow for fine tracking at high magnifications.
• Crayford Focuser: High-precision focusing with a 1:10 micro-reduction mechanism; compatible with both 1.25” and 2” eyepieces.
• Comprehensive Accessories: Comes equipped with a range of accessories for immediate observational success.

Additional Services When You Buy From Us:

• Expert customer support from a leading telescope dealer, available to assist with assembly and operation questions.
• A complimentary 80-page "Telescope ABC" beginner's handbook included with every telescope.

Included Accessories

• 1.25'' Eyepiece: 9mm
• 2'' Eyepiece: 30mm
• Finder Scope: 8x50
• Eyepiece Adaptor: 1.25" - 2"
• Carrying Handle: Yes
• Extension Tubes: Yes
• Battery Compartment: Yes

Technical Specifications

Optics

• Type: Reflector
• Build: Newtonian
• Aperture: 406 mm
• Focal Length: 1829 mm
• Aperture Ratio: f/4.5
• Resolving Capacity: 0.34
• Limit Value (Magnitude): 14.8
• Light Gathering Capacity: 3360
• Max Useful Magnification: 812
• Tube Construction: Truss Tube

Reflector

• Secondary Mirror Design: Plan
• Primary Mirror Construction: Parabolic
• Material: BK7
• Protective Layer: Quartz
• Reflectivity: 94%
• Adjustable: Yes
• Mirror Ventilation: Yes
• Aluminizing: Aluminium

Focuser

• Build: Crayford
• Eyepiece Connection: 2”
• Ring Clamp: Yes
• Gear Reduction: 1:10 fine focusing

Mount

• Build: Dobson
• Type: Dobson
• Motorized: No

Tripod

• Type: Rockerbox
• Accessory Plate: Yes

Miscellaneous

• Dust Covers: Included

General Information

• Total Weight: 65 kg

Application Suitability

• Astrophotography: No
• Moon & Planets: Yes
• Nature Observation: No
• Nebulae & Galaxies: Yes
• Sun Observation: No

Recommended For

• Beginners: No
• Advanced Users: Yes
• Observatories: No

Battery Information

• Battery Type: Mignon (AA, LR6)