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Celestron 8 Inch Newtonian OTA

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Celestron 8 Inch Newtonian OTA
AUD $799.00

Availability: In Stock

8” (200mm) f/5 optical design provides excellent wide field views Parabolic primary mirror minimizes spherical aberration to produce a better image

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Details

The Celestron 8” Newtonian telescope is an excellent entry to mid-level OTA that can grow with you. The Newtonian optical design is excellent for visual observing and offers you the largest aperture for the price.

The parabolic primary mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view. The 8” Newtonian optical tube offers 78% more light gathering ability than the 6” Newtonian optical tube.

Additional Information

Specifications
Optical Design: Newtonian Reflector
Aperture: 200mm (7.87")
Focal Length: 1000mm (39")
Focal Ratio: f/5
Focal Length of Eyepiece 1: 20mm (.8")
Magnification of Eyepiece 1: 50x
Finderscope: 9x50
Star Diagonal: N/A
Optical Tube: Aluminum
Highest Useful Magnification: 472x
Lowest Useful Magnification: 29x
Limiting Stellar Magnitude: 14
Resolution (Rayleigh): .7 arc seconds
Resolution (Dawes): .58 arc seconds
Light Gathering Power (Compared to human eye): 816x
Secondary Mirror Obstruction: 56mm (2.2")
Secondary Mirror Obstruction by Diameter: 28%
Secondary Mirror Obstruction by Area: 7.81%
Optical Coatings: Fully Coated
Optical Tube Length: 914mm (36")
Optical Tube Weight: 22 lbs (9.98 kg)
Optical Tube Diameter: 235mm (9.25")
Dovetail: CG-5 Dovetail bar

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