See and buy Celestron Astromaster 90 AZ Telescope at our Hertfordshire UK showroom or buy online with Free mainland UK Delivery.
If you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the AstroMaster Series is for you. Each AstroMaster model is capable of giving correct views of land and sky.
The AstroMaster Series produce bright, clear images of the Moon and planets. It is easy to see the moons of Jupiter and the rings of Saturn with every one of these fine instruments. For views of the brighter deep space objects like galaxies and nebulae, we recommend the larger aperture and light gathering ability of the Newtonian reflectors.
Optical Design: Refractor
Aperture (mm): 90 mm (3.54 in)
Focal Length: 1000 mm (39 in)
Focal Ratio: 11
Focal Length of Eyepiece 1 (mm): 20 mm (0.79 in)
Magnification of Eyepiece 1: 50 x
Focal Length of Eyepiece 2 (mm): 10 mm (0.39 in)
Magnification of Eyepiece 2: 100 x
Finderscope: Built-on StarPointer
Star Diagonal: Erect Image Diagonal - 1.25"
Mount Type: Altazimuth
Tripod: 1.25" steel tube legs
Highest Useful Magnification: 213 x
Lowest Useful Magnification: 13 x
Limiting Stellar Magnitude: 12.3
Resolution (Rayleigh): 1.55 arc seconds
Resolution (Dawes): 1.29 arc seconds
Light Gathering Power (Compared to human eye): 165 x
Apparent Field of View: 1 °
Linear Field of View (@1000 yds): 53 ft (16 m)
Optical Coatings: Multi Coated
Optical Tube Length: 36 in (914 mm)
AstroMaster Manual (70AZ, 90AZ, 114AZ) (SIZE: 2.32 Mb | 56K DOWNLOAD: 5.34min.)
Quick Setup Guide for AstroMaster 70AZ & 90AZ (SIZE: 1.25 Mb | 56K DOWNLOAD: 2.87min.)
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