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Discover our Solar System with the Celestron AstroMaster mak 90EQ! You’ll be ready to observe in minutes thanks to the quick and easy no-tool setup. The 90EQ  Mak ,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, 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 Design:Maksutov-Cassegrain
Aperture:90mm (3.54")
Focal Length:1250mm (49")
Focal Ratio:f/14
Focal Length of Eyepiece 1:20mm (0.78")
Magnification of Eyepiece 1:50x
Focal Length of Eyepiece 2:10mm (0.4")
Magnification of Eyepiece 2:125x
Barlow Lens:Not Included
Finderscope:StarPointer™ red dot finderscope
Star Diagonal:Erect Image diagonal (1.25")
Optical Tube:Aluminum
Highest Useful Magnification:213x
Lowest Useful Magnification:13x
Limiting Stellar Magnitude:12.3
Resolution (Rayleigh):1.55 arc seconds
Resolution (Dawes):1.29 arc seconds
Light Gathering Power (Compared to human eye):165x
Optical Coatings:Fully Coated
Optical Tube Length:TBD
Optical Tube Diameter:TBD
Optical Tube Weight:TBD
Dovetail:CG-3 Dovetail bar
Mount Type:Manual Alt Azimuth
Height adjustment range (includes mount and tripod):812.8mm - 1295.4mm (32" - 51")
Tripod Leg Diameter:31.75mm (1.25") steel
Accessory Tray:Yes
Slew Speeds:Manual
Tripod Weight:7.6 lbs (3.44 kg)
Dovetail Compatibility:CG-3 saddle plate
Software:Celestron Starry Night Basic Edition Software and SkyPortal App
Total Telescope Kit Weight:TBD
Included Items:Optical tube
Mount and tripod (preassembled)
20mm and 10mm eyepiece
StarPointer™ red dot finderscope
Erect image diagonal
Solar Warning
  • Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
  • Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
  • Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.



SKU: 90makeq