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GSO Dobson N 250/1250 DOB Telescope

Name: GSO Dobson N 250/1250 DOB Telescope
Brand: GSO
SKU: GSO-2501250-2
Price: 495.00 USD
Availability: InStock

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GSO-2501250-2

$495.00

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SKU: GSO-2501250-2 Category: Telescopes Brand: GSO

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Specification
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GSO Dobson N 250/1250 DOB Telescope Specs

Brand	GSO (Guan Sheng Optical)
Full Model Code	GSO 10-inch f/5 Classic Dobsonian Telescope (GS880)
Country of Origin	Taiwan
Optical Design	Newtonian Dobsonian (Parabolic Primary Mirror)
Aperture	250 mm (9.84 inches)
Focal Length	1250 mm
Focal Ratio	f/5
Optical Coatings	High-Reflectivity Aluminum Coating with Silicon Dioxide Protective Layer (93% Reflectivity)
Glass Material	Premium Selection Low-Expansion Parabolic Glass Base Element
Secondary Mirror Obstruction	63 mm
Secondary Mirror Obstruction by Diameter	25.2%
Secondary Mirror Obstruction by Area	6.35%
Resolving Power	0.46 Arcseconds (Dawes), 0.55 Arcseconds (Rayleigh)
Limiting Visual Magnitude	14.1
Highest Useful Magnification	500x
Lowest Useful Magnification	36x
Optical Tube Material	Powder-Coated Rolled Steel Cylinder Structure
Focuser Style & Mechanism	2.0-inch Single-Speed Crayford Focuser with 1.25-inch Step-Down Reducer
Mirror Lock Mechanism	No (Equipped with Rear Cooling Fan Mount Configuration)
Optical Tube Dimensions	303 mm x 1210 mm
Optical Tube Weight	12.20 kg (26.9 lbs)
Mount Attachment Type	Wooden Ground Rocker Box with Heavy-Duty Side Bearing Trunnions and Tension Spring Hardware
Finder Scope Specification	8x50 Achromatic Optical Finder Scope with Quick-Release Bracket
Included Accessories	2.0-inch Crayford Focuser, Plossl 25mm Eyepiece (1.25-inch / 50x), Tension Springs Assembly Kit, Multislot Accessory Board, Protective Front Dust Cap
Standard Warranty	2-Year Limited Warranty
Application	High-aperture visual galaxy surveying and complex star cluster grouping, capturing weak starlight metrics within a wide 10-inch light-gathering barrier safely.