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Celestron AstroFi 102mm Maksutov-Cassegrain Telescope

SKU: CLS-22202

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  • 102mm Maksutov-Cassegrain with fully coated glass optics

  • Control your telescope via integrated WiFi using the free Celestron SkyPortal app for iPhone, iPad, and Android devices

  • Observe in no time with a quick and easy, no-tool setup

  • Adjustable height tripod includes an accessory tray

  • Includes two eyepieces (25mm and 10mm), 1.25" Star Diagonal, StarPointer Finderscope, and a NEW integrated smartphone adapter

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Regular Price: $1,065.00

Special Price $919.00

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The Astro Fi 102 is a computerized alt-azimuth Maksutov-Cassegrain telescope perfect for celestial (and terrestrial) viewing on the go. The Astro Fi offers dazzling views of Moon craters, Saturn's rings, Jupiter's Great Red Spot, the Orion Nebula, the Hercules Globular Cluster and so much more at night! In addition, the star diagonal provides right side up viewing for using as a spotting scope during the day.

Setting up the telescope is a breeze and will have you observing in no time. Even on your first time out, you can assemble the telescope and its accessories in just a few minutes. Its portable weight of 7kg makes the telescope perfect for impromptu observing sessions or transporting it wherever life’s adventures take you.

For double the fun, Astro Fi’s lens cap does double duty as a smartphone adapter too! Become an instant astrophotographer by easily capturing images and videos of all your starry discoveries.

Computerized Alt-Azimuth telescope:

Take in the sky with the computerized alt-azimuth telescope. This straightforward design allows the telescope to move in all the directions you need it to.

Integrated WiFi & Celestron’s SkyPortal App:

Control your telescope using your smart device with ease! The Astro Fi series emits its own wireless connection to Celestron’s SkyPortal app to provide easy remote observing. Scan the sky for an object you want to view, tap the object in SkyPortal and watch your Astro Fi telescope automatically slews to the object.

While observing, SkyPortal provides detailed and accurate information on the object; it’s never been more fun to explore the universe!

SkyAlign Technology:

Getting ready to observe is quick and painless thanks to Celestron’s award-winning SkyAlign technology. Center any three bright objects in the eyepiece, and your telescope calculates its position. You can even generate a Sky Tour of all the best celestial objects to view based on your exact time and location.

Accessories Included:

The Astro Fi 102 comes with:

  • Two eyepieces (25mm and 10 mm)
  • Star Diagonal
  • Integrated smartphone adapter
  • Red dot finderscope.

The two eyepieces offer different magnifications to view your intended object. The red dot finderscope will help you quickly center an object in your eyepiece for easier observing. The lens cap doubles as a smartphone adapter, so you can instantly become an astrophotographer! You will be able to capture great images of the Moon, planets, and terrestrial targets like birds and wildlife.

Note: The smartphone adapter allows any smartphone to a telescope eyepice of 45mm outside diameter or smaller. This smartphone adapter installs easily over the top of an eyepiece while bungee cords securely hold your phone in position so you can snap images or video.  While most phones can be used with the case on, some phone cases which are very large/bulky (such as folio style cases) may need to be removed for the phone to fit in the adapter.

Starry Night Software:

Download Celestron’s Starry Night Software and learn about the night sky, celestial objects, and how to plan your next observing session.  

Compatible with:

Optical Tube Info: 

Optical Design



102mm (4.02")

Focal Length

1325mm (52.17")

Focal Ratio


Focal Length of Eyepiece 1

25mm (.98")

Magnification of Eyepiece 1


Focal Length of Eyepiece 2

10mm (.39")

Magnification of Eyepiece 2



Red Dot Finderscope (StarPointer)

Star Diagonal


Optical Tube


Highest Useful Magnification


Lowest Useful Magnification


Limiting Stellar Magnitude


Resolution (Rayleigh)

1.37 arc seconds

Resolution (Dawes)

1.14 arc seconds

Secondary Mirror Obstruction

35mm (1.38")

Optical Coatings 

Fully Coated

Optical Tube Length

381mm (15")

Optical Tube Diameter

117mm (4.6")

Optical Tube Weight



Vixen / CG-5 Dovetail Bar

Mount Info:

Mount Type

Computerised Altitude-Azimuth Single Fork Arm

Instrument Load Capacity


Height adjustment range (includes mount and tripod)

863.6mm - 1371.6mm

Tripod Leg Diameter


Mount Head Weight


Accessory Tray

Yes, includes rubberised smartphone/tablet holder

Tripod Weight


Slew Speeds

Up to 3°/second

Tracking Rates

Sidereal, Solar, and Lunar

Tracking Modes

Alt-Az, EQ North & EQ South



Dovetail Compatibility

Vixen / CG-5 dovetail

Auxiliary ports

2 Aux ports for optional accessories

Autoguide port


USB Port

No (only with optional Nexstar+ remote)

Power Requirements

  • 12 VDC-750 mA (Tip positive)

Motor Drive

DC servo motors

Alignment Procedures

  • SkyAlign
  • 3-Star Align
  • Solar System Align

Periodic Error Correction


Computerized Hand Control

NexStar+ Database


  • Celestron's Starry Night Special Edition Software
  • SkyPortal App
  • Each software provides over 10000 objects in their database

Included Items

  • Maksutov-Cassegrain OTA
  • Single Fork Arm Mount
  • Tripod with Accessory Tray
  • 2x Eyepieces (25mm & 10mm)
  • Star Pointer Finderscope
  • NexStar+ Hand Control
  • Battery Pouch

About Celestron
Celestron was founded by Tom Johnson whose first telescope design was a simple 6-inch reflector, built for his young son. He gradually progressed to making larger scopes in more sophisticated designs. Today, the Celestron company is an industry leader in designing and manufacturing optical equipment including telescopes (computerised and non-computerised), binoculars, spotting scopes and its accompanying accessories. Celestron's legacy spans 50 years, and has grown to enjoy recognition from amateurs to serious astronomers globally. The company seeks to remain innovative by growing its product offerings, while supporting science education around the world.

Additional Information

Additional Information

Optical Design No
Mount Type Alt-azimuth mount
Aperture 102mm (4.02")
Focal Ratio f/13
Eyepiece 1 25mm
Eyepiece 2 10mm
Eyepiece 3 No
Finderscope Make Star Pointer
Electronic Hand Control No
Motor Drive Yes
Go-To Functionality No
Focal Length 1325mm (52.17")
Tripod No
Tube Length 381mm (15")
Highest Magnification 241x
Warranty Information 2 Years Warranty
Additional Specifications of Product No
Shipping Dimensions No
Shipping Weight No