Celestron AstroMaster 90 AZ Telescope

Item #CELE246-1

  • List Price:
  • $399.95
  • Your Price:
  • $229.98
  • You Save:
  • $169.97 USD43% + FREE Shipping
  • Large 90mm aperture for maximum light gathering
  • Erect Image Optics - great for land or sky viewing
  • Rugged tripod with 1.25-inch steel tube legs
  • Easy no-tool setup
  • Ideal for beginning astronomers
Questions? Let our experts help!
  • Description

    If you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the Celestron AstroMaster 90 AZ 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.


    • 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
    • German Equatorial Mount with Setting Circles - to accurately locate and track sky objects
    • 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

      Celestron 2 Year Warranty

      Celestron warrants your product to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship. As a condition to the obligation of Celestron to repair or replace such product, the product must be returned to Celestron together with proof-of-purchase satisfactory to Celestron.  

      About Celestron

      In the late 1950s, Tom Johnson, founder of Valor Electronics, built a telescope from scratch to introduce his sons to the wonders of stargazing. What began as a hobby soon grew to be Johnson’s driving passion, and in 1960, he formed an Astro-Optical Division within his company. That department eventually became Celestron.

      Prior to Celestron, skilled opticians painstakingly produced high-quality Schmidt-Cassegrain telescopes one by one, hand-figuring the glass for hours. Johnson wanted to bring observatory-grade optics to the masses, but achieving his dream required streamlining the manufacturing process. Johnson’s solution was developing ultra-precise match plates, allowing for mass production of the Schmidt corrector. With this groundbreaking new technique, Johnson created Schmidt-Cassegrain telescopes of unparalleled quality, and brought them to market at a surprisingly low price. Celestron telescopes were an instant smash success that catapulted the hobby of astronomy to new heights.

      In 1970, Johnson unveiled his landmark product: the Celestron 8, with its standout orange tube, high-end optics, and $1,000 price tag. Armed with the “C8,” thousands of amateur astronomers observed celestial objects previously seen only in professional observatories. The C8 cemented Celestron as an industry game-changer and the world’s premier telescope brand.

      For more than 50 years, Celestron has continued to lead the market, creating dozens of revolutionary new products including telescopes, sport optics, and microscopes. With more than 80 employees around the world, Celestron remains guided by our founding principles as we commit to ever-increasing global growth. Today, we still produce our flagship product—the 14-inch Edge HD optical tube—at our headquarters in Torrance, California, using Tom Johnson’s signature method.

      What's Included

      Celestron Astromaster 90 AZ Telescope, StarPointer Finderscope, Tripod, Diagonal, Accessory Tray, 10 mm Eyepiece (100x), 20mm Eyepiece (50x)

    • Dimensions & Specifications

      Optical Design:




      Focal Length:


      Focal Ratio:


      Focal Length of Eyepiece 1:


      Magnification of Eyepiece 1:


      Focal Length of Eyepiece 2:


      Magnification of Eyepiece 2:



      Built-on StarPointer

      Star Diagonal:

      Erect Image Diagonal - 1.25"

      Mount Type:



      1.25" Steel Tubes

      Highest Useful Magnification:


      Lowest Useful Magnification:


      Limiting Stellar Magnitude:


      Resolution (Rayleigh):

      1.55 arc seconds

      Resolution (Dawes):

      1.29 arc seconds

      Light Gathering Power:


      Apparent Field of View:

      Linear Field of View:

      53 ft @ 1000 Yards

      Optical Coatings:

      Multi Coated

      Optical Tube Length:


      Complete Weight:

      20 lbs


      Celestron 2 Year


      Download Celestron AstroMaster 90 AZ Instruction Manual
      Download Celestron AstroMaster Telescope Quick Set-Up Guide
    • Product Guarantee

      We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

      Manufacturer Warranty

      Celestron has a limited lifetime binocular and spotting scope warranty and all other products have a 2 year manufacturer's warranty covers against defects is provided. If you have specific questions about this product's warranty please contact Celestron's Customer Service department at 310-328-9560.

      Return & Exchange Policy

      At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

    Customer Q&A

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    • Q1: Could I use this to view land objects as well as celestial?

      A: Yes!  This scope would work great for terrestrial or astronomical viewing.

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    Ask The Experts

    Have questions about an item or need advice on selecting the right optic? Our team of experts is here to help! Avid outdoor enthusiasts themselves, they've tested gear in the field and can provide personalized product recommendations for just about any activity, from birding and hunting to sports and travel.

    You can reach our Customer Support line at 1-800-246-6285. We're open 8 a.m. to 8 p.m. Central Time, Monday through Friday and 9 a.m. to 4 p.m. on Saturday.

    After hours? Drop us an email at info@binocularsplus.com. We'll get back to you as soon as possible, usually within 1 business day.