Celestron AstroMaster 102AZ Refractor



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Discover our solar system with the Celestron 102AZ! You’ll be ready to observe in minutes thanks to the quick and easy no-tool setup. The 102AZ provides bright, clear images of the Moon, planets, star clusters, and more for great nighttime viewing. Plus, this dual-purpose telescope with erect image optics can also be used during the day. You’ll enjoy viewing lakes, mountain ranges and wildlife by day, then stargazing at night.


Optical Design Refractor
Aperture 102mm (4")
Focal Length 660mm (26")
Focal Ratio f/6.5
Focal Length of Eyepiece 1 20mm (.78")
Magnification of Eyepiece 1 33x
Focal Length of Eyepiece 2 10mm (.4")
Magnification of Eyepiece 2 66x
Barlow Lens Not Included
Finderscope Built-in Red Dot Finder
Star Diagonal Erect Image, 90° (1.25")
Optical Tube Aluminum
Highest Useful Magnification 241x
Lowest Useful Magnification 15x
Limiting Stellar Magnitude 12.5
Resolution (Rayleigh) 1.37 arc seconds
Resolution (Dawes) 1.14 arc seconds
Light Gathering Power (Compared to human eye) 212x
Optical Coatings Fully-Coated
Optical Tube Length 711mm (28")
Optical Tube Weight 4.6 lbs (2086.52 g)
Dovetail Vixen/CG-5
Mount Type Manual Alt Azimuth
Height adjustment range (includes mount and tripod) 812.8mm - 1295.4mm (32" - 51")
Tripod Leg Diameter 1.25" steel
Accessory Tray Yes
Slew Speeds Manual
Tripod Weight  7.6 lbs (3447.3 g)
Dovetail Compatibility Vixen/CG-5 saddle plate
Software Starry Night Basic Edition, SkyPortal App
Total Telescope Kit Weight 12.2 lbs (5533.82 g)
Included Accessories Optical tube | Tripod and mount (preassembled) | 20mm eyepiece | 10mm eyepiece | Red-dot finderscope | Erect image 90 degree diagonal | Manual
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