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  • Manual altazimuth telescope and with pan handle control for smooth and accurate pointing.
  • Adjustable, full height steel tripod with deluxe accessory tray.
  • Quick and easy no-tool setup.
  • Accessories include a 20mm and 10mm eyepiece, a finderscope, and an erect image diagonal - ideal for both terrestrial and astronomical use.
  • Coated all-glass optics for clear, crisp images.
  • Celestron Starry Night Software included.

 Discover our solar system with the Celestron 102AZ! You’ll be ready to observe in minutes thanks to the quick and easy no-tool setup. The 102AZ provides bright, clear images of the Moon, planets, star clusters, and more for great nighttime viewing. Plus, this dual-purpose telescope with erect image optics can also be used during the day. You’ll enjoy viewing lakes, mountain ranges and wildlife by day, then stargazing at night.



Optical Design:    Refractor

Aperture:    102mm (4")

Focal Length:    660mm (26")

Focal Ratio:    f/6.5

Focal Length of Eyepiece 1:    20mm (.78")

Magnification of Eyepiece 1:    33x

Focal Length of Eyepiece 2:    10mm (.4")

Magnification of Eyepiece 2:    66x

Barlow Lens:    Not Included

Finderscope:    Built-in Red Dot Finder

Star Diagonal:    Erect Image, 90° (1.25")

Optical Tube:    Aluminum

Highest Useful Magnification:    241x

Lowest Useful Magnification:    15x

Limiting Stellar Magnitude:    12.5

Resolution (Rayleigh):    1.37 arc seconds

Resolution (Dawes):    1.14 arc seconds

Light Gathering Power (Compared to human eye):    212x

Optical Coatings:    Fully Coated

Optical Tube Length:    380mm (15")

Optical Tube Diameter:    100mm (3.93")

Optical Tube Weight:    5 lbs (2.25 kg)

Dovetail:    CG-5 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:    7.9 lbs (3.6 kg) includes weight of mount

Dovetail Compatibility:    CG-5 saddle plate

Software:    Celestron Starry Night Basic Edition Software and SkyPortal App

Total Telescope Kit Weight:    12.9 lbs (5.85 kg)

Included Items:    Optical tube

Tripod and mount (preassembled)

20mm and 10mm eyepiece

Red-dot finderscope

Erect image 90° 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.

Celestron AstroMaster 102 AZ 90mm f/11.1 Refractor Telescope with 3x barlow