Celestron Astromaster 90mm AZ Refractor Telescope, 1000mm f/11 Focal Length with Altazimuth Mount

Model: 21063

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ON A BRAND NEW Celestron 21063

MSRP: $271.95 ?


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General Information

Optical Design Refractor
Aperture (mm) 90 mm (3.54 in)
Focal Length 1000 mm (39 in)
Focal Ratio 11
Focal Length of Eyepiece 1 (mm) 20 mm (0.79 in)
Magnification of Eyepiece 1 50 x
Focal Length of Eyepiece 2 (mm) 10 mm (0.39 in)
Magnification of Eyepiece 2 100 x
Finderscope Built-on StarPointer
Star Diagonal Erect Image Diagonal - 1.25"
Mount Type Altazimuth
Tripod 1.25" steel tube legs
Highest Useful Magnification 213 x
Lowest Useful Magnification 13 x
Limiting Stellar Magnitude 12.3
Resolution (Rayleigh) 1.55 arc seconds
Resolution (Dawes) 1.29 arc seconds
Light Gathering Power 165 x
Apparent Field of View 1 Degree
Linear Field of View (@1000 yds) 53 ft (16 m)
Optical Coatings Multi Coated
Optical Tube Length 36 in (914 mm)
Warranty 2-year Telescope Warranty
User Reviews
3 August 2018

the 2 generations younger than we are were duly impressed.

11 April 2010

I was in my first Astronomy class. And there were about 6 more telescopes. I thought others would be better then mine. They looked amazing and bigger. But when we used them, my telescope was the most interesting for the people. Images sharply and easy to use. I recommended it to a 15 people i think.

12 January 2018

Worthy purchase. Friends recommended. Not disappointed.

21 November 2011

This is the first Telescope I have ever used and I am very satisfied with it. I couldn't believe when I was able to see Jupiter with the 10mm Eyepiece. For a first time Telescope this is the one you need.

28 August 2018

I have always been interested in space and astronomy but it had never occurred to me to purchase a telescope until recently. I always thought they were for professionals until now but after some time spent researching, I decided to buy one.

6 August 2018

Telescope very nice,and does what its supposed to.Better detail than reflecter scope,ive got reflecter and refacter,if you want more detail,Refacter.The AZ stand is disappointing,,short legs,and siff to use,i had to disassemble,grease moving parts,then it was working fine,go gor EQ tripod.

25 July 2018

I got this telescope for my birthday as I have always been interested in astronomy, however, we had a cheap supermarket telescope when I was younger, which put my parents and me off from telescopes at the time.

11 May 2017

When received this the weekend was cloudy so the time came along and i am impressed by the mount also the laser point finder scope was tricky to adjust but you'll get used to it in time.

12 August 2016

Excellent beginner scope for the price. Very light, easy to set up, easy to move around, easy to use (AZ mount is a must for beginners). With this you can see the moon and the planets (mars/jupiter/saturn are excellent hits right now) and all the major stars very clearly.

3 August 2016

This telescope is great for beginners. Not too expensive, but you can still see a fair amount of binary stars, and the rings of Saturn were distinguishable from the sphere of the planet.

Product Highlights
  • Type: Refracting Telescopes Telescope
  • Aperture: 3.5" (90mm) Aperture
  • Series: Celestron AstroMaster
In The Box
  • StarPointer Finderscope
  • 20mm 1.25" Eyepiece
  • 10mm 1.25" Eyepiece
  • Diagonal
  • Tripod with Accessory Tray
  • 2-Year Warranty
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