Celestron 6 Inch Newtonian Telescope Advanced OTA


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High quality 6" reflector
6x30 finderscope to help accurately find objects
Rack and Pinion Focuser - 1-1/4" (1.25")
152mm Aperture

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Data sheet

Optical Design Newtonian
Aperture 6 inch
Focal Length 750 mm
Focal Ratio F5
Finderscope 6x30
Optical Coatings Aluminum
Optical Tube Length (mm) 27 inch
What is more important to you? Brightness over image resolution

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The C6-NGT Newtonian scope uses diffraction-limited parabolic primary mirror for razor sharp star images across a wide field of view.  The optics of these heavy duty telescopes are manufactured to Celestron's uncompromising standards with star images that are classic textbook Airy disks.

Optical Design Newtonian Reflector
Aperture (mm) 150 mm (5.91 in)
Focal Length 750 mm (30 in)
Focal Ratio 5
Focal Length of Eyepiece 1 (mm) 20 mm (0.79 in)
Magnification of Eyepiece 1 38 x
Finderscope 6x30
Power Requirements Non
Highest Useful Magnification 354 x
Lowest Useful Magnification 21 x
Limiting Stellar Magnitude 13.4
Resolution (Rayleigh) 0.93 arc seconds
Resolution (Dawes) 0.77 arc seconds
Light Gathering Power (Compared to human eye) 459 x
Apparent Field of View 1.3 °
Linear Field of View (@1000 yds) 68 ft (21 m)
Secondary Mirror Obstruction 1.75 in (44 mm)
Secondary Mirror Obstruction by Diameter 30%
Secondary Mirror Obstruction by Area 8.78%
Optical Coatings Aluminum
Optical Tube Length 27 in (686 mm)
Total Telescope Kit Weight 54 lbs (24 kg)
Weight of Counterweights 1-7 lbs, 1-4 lbs


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