Hubble Dobson N 406/1829 UL16 f/4.5 UL DOB
Built around a 406mm sandwich mirror, the Hubble Dobson N 406/1829 UL16 f/4.5 UL DOB combines a 1829mm focal length with an aluminum truss and cooling fans.
- 406mm aperture provides 0.29-arcsecond resolution
- 1829mm focal length uses f/4.5 optics
- Sandwich mirror and aluminum truss included
- 2.0-inch focuser provides 10:1 adjustment
- Cooling fans and rocker base included
In Stock
Description
Large-aperture portable observation begins with the Hubble Dobson N 406/1829 UL16 f/4.5 UL DOB, a 406 mm parabolic Newtonian Dobsonian with an 1829 mm focal length and listed f/4.5 optical ratio. Its lightweight sandwich primary mirror, black-anodized T6061 aluminum truss, 2-inch dual-speed Crayford focuser, dual boundary-layer fans, curved altitude arcs, open rocker framework, and supplied truss components support deep-sky and planetary viewing without computerized tracking.
The 16-inch system is designed to break down into separate components for transport and field assembly, while the sandwich mirror structure supports the supplied lightweight configuration and the cooling fans can be used during preparation before detailed observation. Correct assembly, collimation, balance, stable placement, dust protection, and careful handling remain important because the complete system combines a very large aperture with an open truss design.
Key Features of Hubble Dobson N 406/1829 UL16 f/4.5 UL DOB
This large manual Dobsonian combines a 406 mm parabolic mirror with a 1829 mm focal length, f/4.5 optical ratio, lightweight sandwich primary, T6061 aluminum truss, 2-inch dual-speed Crayford focuser, cooling fans, curved altitude arcs, rocker framework, and supplied structural components for field deployment.
- 406 mm parabolic Newtonian reflector
- 1829 mm focal length with listed f/4.5 optical ratio
- Lightweight sandwich primary mirror
- T6061 aluminum truss construction
- 2-inch Crayford focuser with 10:1 adjustment
- Dual boundary-layer cooling fans
- Curved aluminum altitude arcs
- Open rocker framework and truss components
Large-Aperture Manual Deep-Sky Observation
The supplied application focuses on galaxies, nebulae, clusters, lunar features, and planetary structures, with the 406 mm aperture supporting the listed faint-target role while the f/4.5 optical format provides the stated focal configuration and the open truss design allows the telescope to be transported and assembled in separate manageable sections.
Why Choose Hubble Dobson N 406/1829 UL16 f/4.5 UL DOB
The UL16 f/4.5 configuration is relevant when a large visual aperture must remain transportable, combining a lightweight sandwich mirror, truss breakdown, active cooling, dual-speed focusing, curved altitude arcs, and a manual rocker platform for deep-sky observation without batteries, motors, or computerized alignment.
- 406 mm aperture for the listed faint-target application
- Transportable truss construction with active mirror cooling
- Crayford focuser, rocker base, altitude arcs, and structural components included
Hubble Optics 2-Year Limited Warranty
The supplied product information lists a 2-year limited warranty for this Dobsonian telescope, and the applicable warranty terms, mirror coverage, truss hardware coverage, focuser coverage, cooling-fan coverage, registration requirements, and authorized service process should be confirmed before purchase because the large multi-part structure requires careful assembly, transport, and storage.
Hubble Dobson N 406/1829 UL16 f/4.5 UL DOB Specs
| Brand | Hubble Optics |
| Full Model Code | Hubble Optics Ultra Light 16-inch Premium Dobsonian f/4.5 Configuration (UL16-F4.5) |
| Country of Origin | United States / China |
| Optical Design | Newtonian Dobsonian (Parabolic Lightweight Sandwich Primary Mirror) |
| Aperture | 406 mm (15.98 inches) |
| Focal Length | 1829 mm |
| Focal Ratio | f/4.5 |
| Optical Coatings | 92% Enhanced Aluminum Coating Matrix with Silicon Dioxide Protective Layers |
| Glass Material | Premium Low-Expansion Precision Structural Sandwich Glass (Hubble Proprietary) |
| Secondary Mirror Obstruction | 82 mm |
| Secondary Mirror Obstruction by Diameter | 20.2% |
| Secondary Mirror Obstruction by Area | 4.1% |
| Resolving Power | 0.29 Arcseconds (Dawes), 0.34 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 14.8 |
| Highest Useful Magnification | 800x |
| Lowest Useful Magnification | 57x |
| Optical Tube Material | Premium CNC-Machined T6061 Aluminum Alloy Truss Structure (Black Anodized Finish) |
| Focuser Style & Mechanism | 2.0-inch Low-Profile Dual-Speed Crayford Focuser with 10:1 Micro-Focus Adjustment |
| Mirror Lock Mechanism | No (Equipped with Integrated 12V Dual Boundary Layer Mirror Fans Configuration) |
| Optical Tube Dimensions | Truss Construction (Mirror Box Footprint: 510 mm x 510 mm x 270 mm) |
| Optical Tube Weight | 27.20 kg (59.96 lbs) - Total Combined System Operational Weight |
| Mount Attachment Type | Lightweight Curved Aluminum Altitude Arcs on Minimalist Open Ground Rocker Framework |
| Finder Scope Specification | Optional Red Dot or Optical Finder Bracket Slot |
| Included Accessories | 16-inch f/4.5 Sandwich Primary Mirror, Open Frame Aluminum Mirror Box, Truss Tubes Pack, Upper Ring Cage with Spider, Dual Rear Evacuation Cooling Fans, 10:1 Focuser |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Observatory-scale portable deep-sky analysis, providing an intermediate focal scale to target weak starlight nodes while maintaining a manageable eyepiece height for visual tracking. |




























Reviews
There are no reviews yet.