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

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

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

B&H # CEA102WIFIMK MFR # 22202
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Value: $12.95

Product Highlights

  • 102mm Maksutov-Cassegrain OTA
  • 1325mm Focal Length, f/13 Focal Ratio
  • 1.25" 10mm and 25mm Eyepieces
  • Single-Arm Motorized Alt-Az Mount
  • Wi-Fi Smartphone Connectivity/Control
  • 120,000+ Image Database
  • Tour Modes with Audio Commentary
  • Multiple Alignment and Tracking Tools
  • 90° Star Diagonal / Red Dot Finder
  • Adjustable-Height Aluminum Tripod
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Celestron Astro Fi overview

  • 1Description

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
In the Box
Celestron Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope
  • StarPointer Finderscope
  • Battery Holder
  • 10mm Eyepiece
  • 25mm Eyepiece
  • 90° Star Diagonal
  • Aluminum Tripod with Accessory Tray
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Celestron Astro Fi specs

    Optical Tube Assembly
    Optical Design Maksutov Cassegrain
    Aperture 102 mm / 4"
    Focal Length 1325 mm
    Focal Ratio f/13
    Eyepiece Barrel Diameter 1.25"
    Diagonal Yes, 90 Star
    Finderscope Yes
    Optical Tube Dimensions Length: 11" / 27.9 cm
    Mount
    Type Motorized; Alt-Azimuth Single Fork
    GoTo Capability Yes, Computerized GoTo
    Tripod
    Type Adjustable
    Material of Tripod Aluminum
    General
    Batteries 8 x AA
    Wi-Fi Yes (Built In)
    Weight 13.6 lb / 6.2 kg (Fully Assembled)
    Packaging Info
    Package Weight 23.5 lb
    Box Dimensions (LxWxH) 35.5 x 17.0 x 10.0"

    Celestron Astro Fi reviews

    Astro Fi 102mm f/13 Maksutov-Cassegrain Telescope is rated 4.3 out of 5 by 3.
    Rated 5 out of 5 by from Perfect for beginner As a first-timer, this telescope allowed me to see objects in the sky with great quality, such as the moon, Saturn and its rings, Jupiter with its bands and a few of its moons, and Mars. Amazing experience, I am now addicted. Connecting the telescope to my iPad was as easy as connecting to any wifi network. Aligning the telescope took me about an hour on my first try, but is becoming easier and taking less and less time the more I do it. The app is extremely easy to use. Still getting used to finding the directional buttons on the app while looking through the eyepiece, but definitely not a deal-breaker. I highly recommend this telescope for a beginner.
    Date published: 2018-07-25
    Rated 3 out of 5 by from Good views, Hard to use Optically, this scope is fine, but I don't like that it uses a smartphone as a controller. The lack of discreet buttons make it cumbersome to use - you need to take your eyes from the scope in order to find the virtual buttons on the touchscreen. It also killed the phone battery pretty quickly. I'll exchanged it for one with a dedicated controller.
    Date published: 2017-12-26
    Rated 5 out of 5 by from great telescope I liked this telescope, it is easy to setup and with Wifi technology that enable connecting the telescope with your mobile makes the discovering the sky more fun and easy to navigate through to stars and planets
    Date published: 2017-03-01
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