Astro Fi 5 Schmidt-Cassegrain Telescope
Astro Fi 5 Schmidt-Cassegrain Telescope
Item #: 22204
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- Control your telescope via integrated WiFi using the free Celestron SkyPortal Powered by SkySafari™ app for iPhone, iPad, and Android devices
- The Astro Fi 125mm f/10 Schmidt-Cassegrain telescope with StarBright XLT coated optics provides outstanding views of the Moon and planets, as well as bright deep space objects beyond our Solar System.
- Accessory tray holds 2 x 1.25” eyepieces, miscellaneous accessories, including a rubber-lined area for a smart phone or small tablet.
- Includes a StarPointer finderscope, 2 Kellner eyepieces, and mirror star diagonal.
Specifications
Specifications
| Optical Tube Info: | |
|---|---|
| Optical Design: | Schmidt-Cassegrain |
| Aperture: | 125mm (4.92") |
| Focal Length: | 1250mm (49.2") |
| Focal Ratio: | f/10 |
| Focal Length of Eyepiece 1: | 25mm (0.98") |
| Magnification of Eyepiece 1: | 50x |
| Focal Length of Eyepiece 2: | 10mm (0.39") |
| Magnification of Eyepiece 2: | 125x |
| Finderscope: | StarPointer™ red dot finderscope |
| Star Diagonal: | 1.25" |
| Optical Tube: | Aluminum |
| Highest Useful Magnification: | 295x |
| Lowest Useful Magnification: | 18x |
| Limiting Stellar Magnitude: | 13 |
| Resolution (Rayleigh): | 1.11 arc seconds |
| Resolution (Dawes): | 0.93 arc seconds |
| Light Gathering Power (Compared to human eye): | 329x |
| Secondary Mirror Obstruction: | 50mm (1.96") |
| Secondary Mirror Obstruction by Area: | 16% |
| Secondary Mirror Obstruction by Diameter: | 40% |
| Optical Coatings: | Fully Coated |
| Optical Tube Length: | 355.6mm (14") |
| Optical Tube Diameter: | 180mm (17") |
| Optical Tube Weight: | 6.8 lbs (3.08 kg) |
| Dovetail: | CG-5 Dovetail bar |
| Mount Info: | |
| Mount Type: | Computerized Altitude-Azimuth Single Fork Arm |
| Instrument load capacity: | 8 lbs (3.6 kg) |
| Height adjustment range (includes mount and tripod): | 863.6mm - 1371.6mm (34" - 54") |
| Tripod leg diameter: | 31.75mm (1.25") Aluminum |
| Mount Head Weight: | 5 lbs (2.3 kg) |
| Accessory Tray: | Yes. Includes rubberized smartphone or tablet holder |
| Tripod Weight: | 5 lbs (2.3 kg) |
| Slew Speeds: | max slew rate is 3°/second |
| Tracking Rates: | Sidereal, Solar, and Lunar |
| Tracking Modes: | Alt-Az, EQ North and EQ South |
| GPS: | N/A |
| Dovetail Compatibility: | CG-5 Dovetail |
| Number of Auxiliary ports: | 2x AUX port for optional accessories |
| Autoguider port: | No |
| USB Port: | No (only with optional Nexstar+ remote) |
| Power Requirements: | 12V DC, 1A (Tip positive) |
| Motor Drive: | DC servo motor |
| Alignment Procedures: | SkyAlign, 3-Star Align, Solar System Align |
| Periodic Error Correction: | No |
| Computerized Hand Control: | Hand control not included (optional) |
| NexStar+ Database: | Optional Nexstar+ hand remote provides over 40,000 objects in the computer's database |
| Software: | Celestron Starry Night Special Edition Software and SkyPortal App. Each provide over 100,00 objects in their database |
| Total Kit Weight: | 16.8 lbs (7.6 kg) |
| Included Items: | Optical tube Mount and tripod Accessory tray 25mm and 10mm eyepieces StarPointer™ red dot finderscope Battery pouch |
| Additional Information | |
| California Prop 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
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Celestron is changing the way we experience astronomy, but changing the way you interact with the night sky. The Astro Fi 125 Schmidt-Cassegrain is a fully featured telescoped that can be controlled with your smart phone or tablet using the free Celestron SkyPortal Powered by SkySafari™ app. Using the comprehensive and beautiful interactive star map of the sky, tap the object you Telescopeswant to view on your screen, and your telescope will point to it.
Q:
Why doesn’t my red dot finderscope match the image on the box/website?
Why doesn’t my red dot finderscope match the image on the box/website?
Celestron is making a change to the finderscope shipped with some Celestron telescopes. In some cases, you may receive a finderscope that is different in appearance than the one pictured on the gift box, manual, Quick Setup Guide, or website. We apologize for any inconvenience this may cause. Rest assured that the finders are identical in performance and features. The main difference is the location of the battery compartment and, therefore, the battery installation instructions.
If your red dot finderscope looks like the unit pictured here, you can ignore this message. 
If you received a red dot finderscope that looks like the unit pictured here, follow the instructions below to replace the battery: 
1. The battery compartment on this finderscope is located on top of the unit. Use a Philips-head screwdriver to loosen the screw holding the battery door closed. The screw is captured and will not fall out when you open the battery door. 
2. Lift the battery door open to expose the CR-2032 button battery.
3. With your fingernail on either side of the battery, pry the battery up and out of the battery compartment.
4. Place the new CR-2032 battery, positive (+) side up, under the two copper battery clips at the front of the battery compartment. 

5. Press the battery down to snap it into the plastic battery clips on the opposite side of the battery.
6. Close the battery door and tighten the Phillips-head screw to secure the door in place.
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