Celestron Astro Fi 90mm Refractor Telescope

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  • Control your telescope via integrated WiFi
  • 90 mm refractor with fully coated glass optics
  • Accessory tray holds 2 x 1.25” eyepieces and miscellaneous accessories
  • Includes a StarPointer finderscope, 2 Kellner eyepieces, and mirror star diagonal.
$685.00
Availability: In Stock
Item code: 22201

The Astro Fi 90 is a computerized alt-azimuth refractor telescope perfect for terrestrial and celestial viewing on the go. The Astro Fi offers dazzling views of craters on the Moon, the rings of Saturn, the Great Red Spot on Jupiter, 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, its accessories, and download SkyPortal app in just a few minutes. The adjustable tripod legs allow you to customize the telescope’s height to your liking. The total telescope kit weighs just 15 pounds, making it perfect for impromptu observing sessions or transporting wherever life’s adventures take you.

For even more fun, Astro Fi’s lens cap does double duty as a smartphone adapter. Position your smartphone inside the adapter and then secure it over the Astro Fi’s eyepiece to capture images and video of all your 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 directions.

Integrated WiFi & Celestron’s SkyPortal App

Control your telescope using your smart device. The Astro Fi series emits its own wireless connection to Celestron’s SkyPortal app to provide easy remote observing. Celestron’s SkyPortal app replaces the traditional telescope hand control for a 100% wireless experience. Scan the sky for an object you would like to view, tap the object in SkyPortal and watch your Astro Fi telescope automatically slews to the object. While observing, SkyPortal provides information on the object; it’s never been more fun to explore the universe!

NOTE: Due to the amount of information SkyPortal has to offer, we recommend downloading the app before going out to observe.

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 90 comes with two eyepieces (25mm and 10mm), a star diagonal, an integrated smartphone adapter, and a red dot finderscope.  The two eyepieces offer different magnifications to view your intended object. The star diagonal provides a right-side-up viewing for a more comfortable viewing angle when looking up at the sky. The red dot finderscope will help you quickly center an object in your eyepiece for easier observing.

Lens Cap/Smartphone Adapter – Image celestial or terrestrial objects with this smartphone adapter! The Astro Fi lens cap has an integrated smartphone adapter to capture great images of the Moon, planets, and terrestrial targets like birds and wildlife. With its light, rigid frame, this accessory allows you to connect any smartphone to any telescope eyepiece with an outside diameter of 45mm 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 the vast majority of smartphones can be used with the case on, some very large and/or bulky phone cases (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. Celestron Starry Night Software is the premier astronomy software package on the market, providing resources and knowledge to view our solar system and beyond. 

Data sheet

Optical Design
Refractor
Tube Material
Aluminum
Optical Tube Weight (kg)
5 lbs (2.3 kg)
Power Supply
12V DC, 1A (Tip positive)
Tracking
Sidereal, Solar, and Lunar
Max. Additional Load Capacity (kg)
8 lbs (3.6 kg)
Database
Optional Nexstar+ hand remote provides over 4,000 objects in the computer's database
Software
Celestron's Starry Night Special Edition Software, SkyPortal App. Each provide over 100,00 objects in their database
GPS
N/A
Hand Controller
Hand control not included (optional)
Tracking Speeds
Up to 3°/second
Alignment Method
SkyAlign, 3-Star Align, Solar System Align
Tripod Weight
5 lbs (2.3 kg)
Tray
Yes. Includes rubberized smartphone or tablet holder
Focal Length
910mm (36")
Focal Ratio
f/10.1
Lowest Useful Magnification
13x
Highest Useful Magnification
213x
Limiting Stellar Magnitude
12.3
Mount Type
Computerized Altitude-Azimuth Single Fork Arm
USB, type
No (only with optional Nexstar+ remote)
Operation modes
Alt-Az, EQ North & EQ South
Height Adjustment Range
863.6mm - 1371.6mm (34" - 54")
Motor
DC servo motor
Maintube Diameter
99mm (3.9")
Aperture
90mm (3.54")
Optical Coatings
Fully Coated
Star Diagonal
1.25" Star Diagonal
Finderscope
StarPointer
Resolution (Rayleigh)
1.54 arc seconds arc seconds
Resolution (Dawes)
1.29 arc seconds arc seconds
Light Gathering Power
165x
Optical Tube Length
945mm (37.2")
Total Telescope Kit Weight
15 lbs (6.8 kg)
Included Items
Telescope OTA | Mount | Tripod w/accessory tray | 2x eyepieces | 1.25" Star diagonal | 1.25" visual back | Red dot starpointer | Battery pouch
Focal Length of Eyepiece 1
25mm (.98")
Magnification of Eyepiece 1
36x
Focal Length of Eyepiece 2
10mm (.39")
Magnification of Eyepiece 2
91x

Optics
Optical Design
Refractor
Tube Material
Aluminum
Optical Tube Weight (kg)
5 lbs (2.3 kg)
Mount
Power Supply
12V DC, 1A (Tip positive)
Tracking
Sidereal, Solar, and Lunar
Max. Additional Load Capacity (kg)
8 lbs (3.6 kg)
GoTo Control
Database
Optional Nexstar+ hand remote provides over 4,000 objects in the computer's database
Software
Celestron's Starry Night Special Edition Software, SkyPortal App. Each provide over 100,00 objects in their database
GPS
N/A
Hand Controller
Hand control not included (optional)
Tracking Speeds
Up to 3°/second
Alignment Method
SkyAlign, 3-Star Align, Solar System Align
Tripod
Tripod Weight
5 lbs (2.3 kg)
Included Accessories
Tray
Yes. Includes rubberized smartphone or tablet holder
Other features
Focal Length
910mm (36")
Focal Ratio
f/10.1
Lowest Useful Magnification
13x
Highest Useful Magnification
213x
Limiting Stellar Magnitude
12.3
Mount Type
Computerized Altitude-Azimuth Single Fork Arm
USB, type
No (only with optional Nexstar+ remote)
Operation modes
Alt-Az, EQ North & EQ South
Height Adjustment Range
863.6mm - 1371.6mm (34" - 54")
Motor
DC servo motor
Maintube Diameter
99mm (3.9")
Aperture
90mm (3.54")
Optical Coatings
Fully Coated
Star Diagonal
1.25" Star Diagonal
Finderscope
StarPointer
Resolution (Rayleigh)
1.54 arc seconds arc seconds
Resolution (Dawes)
1.29 arc seconds arc seconds
Light Gathering Power
165x
Optical Tube Length
945mm (37.2")
Total Telescope Kit Weight
15 lbs (6.8 kg)
Included Items
Telescope OTA | Mount | Tripod w/accessory tray | 2x eyepieces | 1.25" Star diagonal | 1.25" visual back | Red dot starpointer | Battery pouch
Focal Length of Eyepiece 1
25mm (.98")
Magnification of Eyepiece 1
36x
Focal Length of Eyepiece 2
10mm (.39")
Magnification of Eyepiece 2
91x
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