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Celestron Astromaster 90EQ

US$ 328.80

Not in Stock: will Be Backordered

Short Description

  • Manual German equatorial mount with setting circles - to locate and track sky objects
  • Adjustable, full height steel tripod with deluxe accessory tray
  • Quick and easy no-tool setup
  • Accessories include a 20mm and 10mm eyepiece, erect image diagonal, and a finderscope
  • Download Starry Night Basic Software with a 36,000 object database, printable sky maps and enhanced images including 3D renderings of stars, exoplanets, and galaxies


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Discover our Solar System with the Celestron AstroMaster 90EQ! You’ll be ready to observe in minutes thanks to the quick and easy no-tool setup. The 90EQ provides bright, clear images of the Moon, planets, star clusters, and more for great nighttime viewing.

Manual German Equatorial telescope

The AstroMaster mount comes with two slow motion control knobs that allow you to make fine pointing adjustments to the telescope in both Right Ascension and Declination axes, also referred to as RA and DEC.

Accessories Included

Accessories include a 20mm and 10mm eyepiece, erect image diagonal, and a finderscope. The two eyepieces offer different magnifications for low and high powered views. 

Starry Night Software

Download Celestron’s Starry Night Software and learn about the night sky, celestial objects, and how to plan your next observing session. Celestron Starry Night Software is the premier astronomy software package on the market, providing resources and knowledge to view our solar system and beyond. 

Optical DesignRefractor
Aperture90mm (3.54")
Focal Length1000mm (39.37")
Focal Ratiof/11
Focal Length of Eyepiece 120mm (.78")
Magnification of Eyepiece 150x
Focal Length of Eyepiece 210mm (.4")
Magnification of Eyepiece 2100x
Barlow LensNot Included
FinderscopeBuilt-on StarPointer
Star DiagonalErect Image Diagonal - 1.25"
Highest Useful Magnification213x
Lowest Useful Magnification13x
Limiting Stellar Magnitude12.3
Resolution (Rayleigh)1.55 arc seconds
Resolution (Dawes)1.29 arc seconds
Light Gathering Power (Compared to human eye)165x
Optical CoatingsMulti Coated
Optical Tube Length914mm (36")
Optical Tube DiameterTBD
Optical Tube WeightTBD
DovetailCG-3 Dovetail bar
Mount TypeCG-3 Equatorial
Height adjustment range (includes mount and tripod)812.8mm - 1295.4mm (32" - 51")
Tripod Leg Diameter31.75mm (1.25") steel
Accessory TrayYes
Tripod Weight7.6 lbs (3447.3 g)
Slew SpeedsManual
Dovetail CompatibilityCG-3 saddle plate
SoftwareStarry Night Basic Edition | SkyPortal App
Total Kit WeightTBD
Included ItemsOptical tube | Tripod and mount (preassembled) | 20mm eyepiece | 10mm eyepiece | Red-dot finderscope | Manual

Additional Information

Additional Information

NameCelestron Astromaster 90EQ
Warranty3 YEARS
Optical SchemeAchromatic refractor
Diameter90 mm
Focal Length1000 mm
Mount typeManual Equatorial


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