Technical Features for Celestron AstroMaster 90EQ
The Celestron 21064 is a dual-purpose telescope appropriate for both terrestrial and celestial viewing. It features Built-on StarPointer Finderscope to help accurately find objects of interest without being tethered by skills and starcharts.
“TheSkyX – First Light Edition” astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images.
The AstroMaster 90EQ produces 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. The rugged pre-assembled tripod with 1.25" steel tube legs provides a rigid and stable platform.
Celestron AstroMaster 90EQ 21064 Specification
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Optical Design
Refractor
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Aperture (mm)
90 mm (3.54 in)
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Focal Length (mm)
1000 mm (39 in)
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Focal Ratio
11
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Focal Length of Eyepiece 1 (mm)
20 mm (0.79 in)
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Magnification of Eyepiece 1
50x
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Focal Length of Eyepiece 2 (mm)
10 mm (0.39 in)
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Magnification of Eyepiece 2
100x
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Finderscope
Built-on StarPointer
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Star Diagonal
Erect Image Diagonal - 1.25"
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Mount
CG-3 Equatorial
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Tripod
1.25" Steel Tube Legs
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Highest Useful Magnification
213x
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Lowest Useful Magnification
13x
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Limiting Stellar Magnitude
12.3
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Resolution (Rayleigh)
1.55 Arc Seconds
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Resolution (Dawes)
1.29 Arc Seconds
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Light Gathering Power
165x
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Apparent Field of View (deg)
1°
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Optical Coatings
Multi Coated
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Linear Field of View (@1000 yds)
53 ft (16 m)
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Optical Tube Length
36 in (914 mm)
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Tube Attachment
Dovetail Bar
AstroMaster 90EQ 21064 Features:
Celestron 21064 Includes:
- StarPointer Finderscope
- 20mm Eyepiece 1.25" (magnification 50x)
- 10mm Eyepiece 1.25" (magnification 100x)
- Diagonal
- Tripod & Accessory Tray
Entry level
by Mark M.
This offers reasonable value and high quality optics. The scope performs to expectations and you can improve performance with small extra cost of some additional accessories.
Much better than others
by B. Morrison
The optics on this model are fantastic. The mount is excellent and does require a little learning curve. Once you locate objects it is really easy to keep them in view.
Perfect for me
by Rick N.
I did some research and found that this model matches what I need and what I can afford. Easy to assemble and am very pleased with the details we can see on objects like the moon.
The Celestron AstroMaster 90EQ has many exciting features for users of all types. It's one of FactoryOutletStore's best selling Celestron Telescopes. You can extend the lifetime of your Celestron AstroMaster 90EQ with the purchase of a FactoryOutletStore Factory Protection Plan. See the Celestron AstroMaster 90EQ product video and gallery images above for more details. FactoryOutletStore stocks a full line of accessories like AstroMaster Accessory Kit, Celestron 93503, and Celestron Eyepiece and Filter Kit for the Celestron AstroMaster 90EQ. The Celestron AstroMaster 90EQ is sold as a Brand New Unopened Item.
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Celestron AstroMaster 90EQ
