The Professional's Source Since 1973
  • Help
Ask Our Experts800.831.2434
Hello, Log InAccount & Orders

Join Bild Expo 2025 - Presented by B&H

Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope

BH #CEA102WIFIMK • MFR #22202
Print
Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope
Key Features
  • 102mm Maksutov-Cassegrain OTA
  • 1325mm Focal Length, f/13 Focal Ratio
  • 1.25" 10mm and 25mm Eyepieces
  • Single-Arm Motorized Alt-Az Mount
Free yourself and your astronomy sessions from cords with Celestron's Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope. It utilizes an integrated antenna to emit a local Wi-Fi signal so you can control the mount via direct wireless connection with Android and iOS smartphones and tablets running the free SkyPortal app.
More Details
In Stock
Free Expedited Shipping
Protect Your Gear
Add a protection plan from $54.99
Shipping Restrictions
Sales and export of this item to South Korea are prohibited.
Ask an Expert
800.831.2434

Celestron Astro Fi Overview

Free yourself and your astronomy sessions from cords with Celestron's Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope. It utilizes an integrated antenna to emit a local Wi-Fi signal so you can control the mount via direct wireless connection with Android and iOS smartphones and tablets running the free SkyPortal app.

Optically, the scope sports a design similar to the more common Schmidt configuration, but this Maksutov variation exchanges the front corrector plate for a convex meniscus lens, which eliminates the need for periodic collimation. Additionally, the nature of the lens requires a smaller secondary mirror that limits obstruction and increases contrast. This optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt-Cassegrain, but the optical benefits makes this an ideal scope for lunar and planetary observation, with the resolution required for splitting binary stars and separating star clusters. This complete observation rig includes the optical tube assembly (OTA), a motorized mount controlled by the app, an aluminum tripod, two eyepieces, a 90° diagonal, and a red dot finder.

The OTA is mounted on a single-arm motorized alt-az mount. Guiding the mount is the SkyPortal app. Packed with over 120,000 objects, it is designed to help users set up quickly and start observing faster. The app offers multiple alignment procedures, it can automatically find objects in the night sky, and it offers guided tours of the most interesting objects overhead on any given night with select audio commentary including histories, mythologies, and NASA images. The mount runs on eight user-supplied AA batteries, and the entire rig assembles and breaks down without the need for tools so you spend less time setting up and more time observing.

Optical Tube
  • 102mm aperture
  • f/13 focal ratio
  • 1325mm focal length
  • Maksutov-Cassegrain optical design
  • Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberration) across the entire field of view
  • Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
  • Fully coated optics reduce light loss for increased image brightness and improved color fidelity and contrast
  • Resolution: 1.37 arcsec, Rayleigh; 1.14 arcsec, Dawes Limit
  • Internal focusing mechanism
Computer Control
  • Integrated Wi-Fi:
  • Directly connects to tablet or smartphone
  • Control mount via free SkyPortal app for Android 4.0 and higher and iOS 6 or later
  • SkyPortal App:
  • 120,000+ object database
  • Includes: Sun, Moon, planets, star clusters, nebulae, galaxies, asteroids and comets, satellites, and the International Space Station
  • Custom SkyTour of all the best celestial objects to view based on the time, date, and location
  • Simulate the night sky up to 100 years in the past or future to plan an upcoming observing session
  • Compass Mode: Hold device up to the night sky and identify objects such as stars, planets, and galaxies; zoom in to view fainter objects not visible to the naked eye
  • Night Vision Mode: Preserves night-adjusted vision
  • Alignment Procedures: SkyAlign, 3-Star, Solar System
  • Tracking Rates: Sidereal, solar, and lunar; automatic tracking for near- and deep-sky objects
  • Multiple slew speeds: 3°/sec maximum
  • View hundreds of astronomical photographs and NASA spacecraft images
  • Listen to more than four hours of audio narration to learn the history, mythology, and science of astronomy and the night sky
  • Works as a stand-alone planetarium app
Mount & Tripod
  • Mount:
  • Motorized single-arm alt-az
  • Runs on eight user-supplied AA batteries
  • Quick release base, OTA, and accessory tray with rapid no-tool setup
  • Tripod:
  • Adjustable height
  • Lightweight and durable two-section aluminum legs
  • Spiked feet for steady footing on soft ground
  • Center tray holds accessories such as eyepieces and filters while adding stability and reducing vibrations
Included Accessories
  • Eyepieces:
  • 1.25" barrel diameter
  • 25mm produces 53x magnification
  • 10mm produces 132x magnification
  • Diagonal:
  • 90° angle places head at a comfortable viewing position when OTA is pointed at or near the zenith
  • Star diagonal vertically corrects image for terrestrial viewing
  • StarPointer Finderscope:
  • 1x magnification
  • Red dot reticle
  • Variable intensity
  • Unmagnified wide field of view to make alignment faster and easier
UPC: 050234222020

Celestron Astro Fi Specs

Key Specs
Optical Design
Maksutov Cassegrain
Aperture
102 mm / 4"
Focal Length
1325 mm
Focal Ratio
f/13
Eyepiece Barrel Diameter
1.25" on OTA
Type
Motorized: Alt-Azimuth Single Fork
GoTo Capability
Yes
Battery
8x AA
Weight
16 lb / 7.3 kg
Optical Tube Assembly
Optical Design
Maksutov Cassegrain
Aperture
102 mm / 4"
Focal Length
1325 mm
Focal Ratio
f/13
Resolution
1.14 Arcsec (Dawes)
1.37 Arcsec (Rayleigh)
Eyepiece Barrel Diameter
1.25" on OTA
Diagonal
Star
Finderscope
Yes
Mounting
Dovetail
Optical Tube Dimensions
Length: 15" / 38.1 cm
Mount
Type
Motorized: Alt-Azimuth Single Fork
GoTo Capability
Yes
Counterweight
No
Tripod
Type
Adjustable
Tripod Height Adjustment Range
34.0 to 54.0" / 86.4 to 137.2 cm
Material of Tripod
Aluminum
General
Battery
8x AA
Adapter
12 VDC
GPS
No
Wireless
Wi-Fi
*Built-In
Mobile App Compatible
Yes: Android & iOS
Weight
16 lb / 7.3 kg
Packaging Info
Package Weight
23.5 lb
Box Dimensions (LxWxH)
35.5 x 17 x 10"

Celestron Astro Fi Reviews

See any errors on this page?

question

Can you use a hand controller thru the aux connectors and not just smart phone or tablet just in case say a person's phone or tablet breaks?
Asked by: Anonymous
Yes, you can use a NexStar hand controller through the aux port to control the telescope. Sincerely, Garrett at Celestron
Answered by: Telescope
Date published: 2020-08-09

In the absence of battery or power adapter, can ...

In the absence of battery or power adapter, can this telescope still be adjusted manually if required ?
Asked by: Manish
No, it is not possible to fully adjust the Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope without power. One needs power for the motorized alt-az mount to adjust the azimuth axis.
Answered by: Yaakov
Date published: 2022-05-26

get smartphone adapter?

get smartphone adapter?
Asked by: Joki
These are available, Celestron Basic Smartphone Digiscoping Adapter (1.25") B&H # CEBSPA125 MFR # 81035 Snapzoom Universal Digiscoping Adapter B&H # SNSZ1.5 MFR # SZ-1.5 Celestron NexYZ 3-Axis Universal Smartphone Adapter B&H # CENEXYZ3ASA MFR # 81055
Answered by: David
Date published: 2021-03-19

What exactly can you see in detail with a ...

What exactly can you see in detail with a telescope like this? Do you just see the moon in more detail, or can you actually see a bit more of the solar system? Sorry, unexperienced person here.
Asked by: Don
From the city, you can easily view craters on the moon, Saturn's rings, and even Jupiter's cloud bands and four of its brightest moons through the Astro Fi 102. From a dark sky site, the telescope will reveal nebulae, galaxies, globular and open star clusters and much more. Light pollution will be your biggest obstacle.
Answered by: Telescope
Date published: 2021-02-02

Is the dc jack that is on the telescope is of ...

Is the dc jack that is on the telescope is of non-standard length ? I couldn't fit any of the existing 12v dc power adapters that I had. Do telescopes have a different jack length ? Is there a way I can use the standard 12v dc power supply with it (using some connectors perhaps ?) . Standard dc jack length is 10mm, while this telescope requires around 13mm. Is that correct ?
Asked by: Manish
The Celestron AC to DC Power Adapter (BH #CEACDCPA • MFR #18778) is the correct power adapter for the Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope. This is a 12 volt 2A with a 5.5mm DC plug on the end. This plug has an inner diameter of 2.1mm (.08"), and a length of 10mm - 15mm (.39" - .59").
Answered by: Yaakov
Date published: 2022-05-25

question

How we can connect one photo machine to the Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope ?
Asked by: carlos l.
If you are referring to Photography cameras we have a number of different T-Mount adapter for a variety of cameras. https://bhpho.to/2njCYde
Answered by: Joe P
Date published: 2019-10-03

a) Can we use a power adapter (dc/AC/Car) with ...

a) Can we use a power adapter (dc/AC/Car) with this if battery runs out ? If yes, which model ?
Asked by: Manish
Yes, there are a couple power options for this. One can use the Celestron AC to DC Power Adapter, BH #CEACDCPA (https://bhpho.to/3yhjx6R). One can also use the Celestron Car Battery Adapter (25'/7.7 m), BH #CECBAU2000 (https://bhpho.to/3vNHf98).
Answered by: Yaakov
Date published: 2022-05-05

Where I view stars there is no internet or ...

Where I view stars there is no internet or cellular service. Can this telescope still track without an internet connection?
Asked by: john
The Astro Fi 102mm telescope emits its own WiFi local signal which can be received by your smart device. You will need to download Celestron's SkyPortal app to align and control the telescope. Once aligned, tracking is automatic, although there are other tracking rates available.
Answered by: Telescope
Date published: 2021-06-08
  • y_2025, m_4, d_20, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_13
  • loc_en_US, sid_1248232, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo
Whatever You Need, We've Got It