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Manufacturers

ANDROMEDA Ltd. Baader Planetarium Celestron Konus 10Micron View all

Telescope COMETRON FirstScope

Code: 21023

Description

telescope Newton, tabletop Dobson 76/300

Manufacturer: Celestron
Weight: 2.200 Kgs

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Optical Design	Newtonian Reflector
Aperture (mm)	76 mm (2.99 in)
Telescope Type	Manual
Focal Length	300 mm (12 in)
Focal Ratio	3.95
Focal Length of Eyepiece 2 (mm)	Kellner 10 mm (0 in)
Finderscope	5x24
Tripod	None
Highest Useful Magnification	180 x
Lowest Useful Magnification	11 x
Limiting Stellar Magnitude	11.9
Resolution (Rayleigh)	1.83 arc seconds
Resolution (Dawes)	1.53 arc seconds
Light Gathering Power (Compared to human eye)	118 x
Secondary Mirror Obstruction	1.1 in (28 mm)
Secondary Mirror Obstruction by Diameter	37%
Secondary Mirror Obstruction by Area	14%
Optical Coatings	Aluminum with SiO2
Optical Tube Length	10 in (254 mm)
Total Telescope Kit Weight	4.3 lbs (1.95 kg)
Warranty	2-year Telescope Warranty

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