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National Geographic N 114/500 Compact DOB Telescope Specs
| Brand | National Geographic |
| Full Model Code | National Geographic 114/500 Compact Desktop Dobsonian Reflector Telescope (9061000) |
| Country of Origin | China |
| Optical Design | Newtonian Reflector (Parabolic Primary Mirror Configuration) |
| Aperture | 114 mm (4.5 inches) |
| Focal Length | 500 mm |
| Focal Ratio | f/4.4 |
| Optical Coatings | Aluminum Multi-Layer Vacuum Coating Matrix with Protective Silicon Dioxide Layer |
| Glass Material | Standard Plate Glass Optical Mirror Substrate with Molded Structural Cell Core |
| Secondary Mirror Obstruction | 34 mm |
| Secondary Mirror Obstruction by Diameter | 29.8% |
| Secondary Mirror Obstruction by Area | 8.89% |
| Resolving Power | 1.02 Arcseconds (Dawes), 1.22 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 12.8 |
| Highest Useful Magnification | 230x |
| Lowest Useful Magnification | 16x |
| Optical Tube Material | Roll-Formed Steel Cylindrical Shell with Protective Composite Edge Trim |
| Focuser Style & Mechanism | 1.25-inch Standard Helical Focus Assembly with Textured Outer Grip Ring |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 142 mm x 460 mm |
| Optical Tube Weight | 1.90 kg (4.19 lbs) - OTA Only / 3.75 kg (8.27 lbs) - Total System with Base |
| Mount Attachment Type | Integrated Side-Mounted Dovetail Bracket Attached Directly to Single-Arm Base |
| Finder Scope Specification | LED Red Dot Projection Finder Sight Array Assembly with Variable Luminance Dial Node |
| Included Accessories | 114mm Reflector OTA, Compact Desktop Dobsonian Swivel Base, Two Kellner Eyepieces (K 20mm - 25x, K 6mm - 83x), 2x Barlow Lens, LED Red Dot Finder, Moon Filter, Built-in Compass |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Portable grabbed-and-go grab visual observation of faint nebulae and star clusters, deploying a wide-field parabolic layout to secure fast setup intervals on stable outdoor table platforms. |
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