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Product Specifications

Celestron  Astromaster 90AZ Telescope #21063  

Main specs

Optical Design:  Refractor

Aperture:  90mm

Celestron-Astromaster 90AZ Telescope #21063-Telescopes
Specifications Media


Telescope Mount


Optical Tube

not specified

Optical Tube Dimensions

36'' long

Motor Drive

Not Available

Secondary Mirror Obstruction

not applicable for refractor type telescopes


Optical Design




Focal Length


Focal Ratio



10mm - 0.39''


1.55 arc seconds

Resolving Power

1.29 arc seconds

Optical Coating

Fully Coated

Limiting Stellar Magnitude




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 Features

AstroMaster 90AZ - General Features

  • Quick and easy no-tool setup
  • Permanently mounted StarPointer
  • Erect image optics - Ideal for terrestrial and astronomical use
  • Quick release dovetail attachment - no tool setup
  • Pan handle Alt-Az control with clutch - for smooth and accurate pointing
  • Rugged pre-assembled tripod with 1.25" steel tube legs - Provides a rigid and stable platform
  • All coated glass optics for clear, crisp images
  • Deluxe accessory tray for convenient storage of accessories
  • "The Sky®" Level 1 planetarium software with 10,000 object database and enhanced images


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