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Celestron - AstroMaster 90EQ-MD (Motor Drive) 90mm Refractor Telescope


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Manufactured by: Celestron

Celestron AstroMaster 90EQ-MD (Motor Drive) Refractor Telescope


CELESTRON  •  AstroMaster 90EQ-MD 90mm Refractor Telescope  •  21069

The Celestron AstroMaster 90EQ-MD Refractor is a step up from the 90AZ, but instead takes advantage of the balance power of a german equatorial mount with setting circles to allow for accurate tracking of right ascension and declination to desired celestial coordinates of the night sky as well as a motor drive. The refractor also has a permanent starpointer on it to assist in accurately pointing the telescope. To assemble, mount the optical tube on the equatorial head with the dovetail connection and snap on the accessory tray. It is that simple! Moons of Jupiter, rings of Saturn and craters of our Moon will all look outstanding and sharp through this refractor. 20mm and 10mm eyepieces are included which result in magnifications of 50x and 100x as well as the SkyX First Light Edition Astronomy Software for basic teaching of the night sky and famous celestial objects.


  • 90mm (3.54")  Refractor.
  • Equatorial mount with setting circles
  • Permanent starpointer
  • 20mm and 10mm eyepieces included
  • Aluminum tripod
  • Accessory tray
  • SkyX First Light Edition Astronomy Software









Product Series

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.

Additional Information

Name Celestron - AstroMaster 90EQ-MD (Motor Drive) 90mm Refractor Telescope
Manufacturer Celestron
Model CEL-21069
Manufacturer Part No CEL-21069
Telescope Aperture 3.1" - 4"
Aperture 90 mm (3.54 in)
Apparent Field of View
Finderscope Built-on StarPointer
Focal Length 1000 mm (39 in)
Focal Ratio f/11
Highest Useful Magnification 213 x
Light Gathering Power 165 x
Limiting Stellar Magnitude 12.3
Linear Field of View (@1000 yds) 53 ft (16 m)
Lowest Useful Magnification 13 x
Mount CG-3 Equatorial
Optical Coatings Multi Coated
Optical Tube Length 36 in (914 mm)
Resolution (Dawes) 1.29 arc seconds
Resolution (Rayleigh) 1.55 arc seconds
Star Diagonal Erect Image Diagonal - 1.25"
Tripod 1.25" steel tube legs