Product Description
Celestron 102mm Astro-Fi Maksutov-Cassegrain Telescope 22202
The Celestron Astro-Fi 102 is a computerized alt-azimuth Maksutov-Cassegrain telescope designed for both terrestrial and celestial viewing. With fully coated glass optics, this telescope offers bright and clear images of celestial objects such as the Moon, Saturn's rings, Jupiter's Great Red Spot, the Orion Nebula, and the Hercules Globular Cluster. During the day, it can be used as a spotting scope with its right-side-up viewing capability.
Features
- 102mm Maksutov-Cassegrain with fully coated glass optics
- Integrated WiFi allows control via the free Celestron SkyPortal app for iPhone, iPad, and Android devices
- Quick and easy no-tool setup for fast observing
- Accessories include two eyepieces (25mm and 10mm), star diagonal, finderscope, and an integrated smartphone adapter
- Adjustable-height tripod with an accessory tray for added convenience
Maksutov-Cassegrain Optical Design
The Maksutov-Cassegrain is a catadioptric telescope that uses both a lens and a mirror. Light passes through the corrector lens, reflects off the primary mirror, and is redirected by a spherical secondary mirror before reaching the eyepiece. This design results in bright, sharp images with minimal chromatic aberration.
Instead of a separate secondary mirror, the Maksutov-Cassegrain has a reflective secondary spot applied directly to the inside of the corrector plate. This eliminates the need for frequent collimation and provides high-contrast views. However, the larger Maksutov corrector plate takes longer to adjust to ambient air temperature compared to a Schmidt-Cassegrain of the same size.
Computerized Alt-Azimuth Telescope
The Astro-Fi 102 features a computerized alt-azimuth mount, allowing smooth movement in all directions.
Integrated WiFi and Celestron SkyPortal App
The telescope emits its own WiFi connection, enabling remote control via the Celestron SkyPortal app. This app replaces the traditional hand controller, offering an intuitive experience. Simply select an object within the app, and the telescope automatically slews to the target. The app provides detailed information on celestial objects, enhancing the observing experience.
SkyAlign Technology
Celestron’s SkyAlign technology simplifies the setup process. Align the telescope by centering any three bright objects in the eyepiece, and the telescope calculates its position. The system can also generate a Sky Tour, showcasing the best objects visible at your specific time and location.
Accessories Included
The Astro-Fi 102 comes with essential accessories for an enhanced viewing experience:
- Two eyepieces (25mm and 10mm) for different levels of magnification
- Star diagonal for a comfortable viewing angle with a right-side-up image
- Integrated smartphone adapter to capture images and video
- Red dot finderscope to help quickly center objects in the eyepiece
Lens Cap and Smartphone Adapter
The included lens cap also functions as a smartphone adapter, allowing users to capture images of celestial and terrestrial objects. The adapter fits eyepieces with an outside diameter of 45mm or smaller. Most smartphones can be used with the case on, though larger or bulkier cases may need to be removed for a secure fit.
Starry Night Software
The telescope includes Celestron’s Starry Night software, which provides a database of celestial objects, sky maps, and enhanced 3D renderings of stars, exoplanets, and galaxies. This software is a valuable tool for learning about the night sky and planning observing sessions.
| OPTICAL TUBE INFO: | |
| Optical Design: | Maksutov-Cassegrain |
| Aperture: | 102mm (4.02") |
| Focal Length: | 1325mm (52.17") |
| Focal Ratio: | f/13 |
| Focal Length of Eyepiece 1: | 25mm (.98") |
| Magnification of Eyepiece 1: | 53x |
| Focal Length of Eyepiece 2: | 10mm (.39") |
| Magnification of Eyepiece 2: | 132x |
| Finderscope: |
StarPointer™ red dot finderscope
|
| Star Diagonal: | 1.25" Star Diagonal |
| Optical Tube: | Aluminum |
| Highest Useful Magnification: | 241x |
| Lowest Useful Magnification: | 15x |
| Limiting Stellar Magnitude: | 12.5 |
| Resolution (Rayleigh): | 1.37 arc seconds arc seconds |
| Resolution (Dawes): | 1.14 arc seconds arc seconds |
| Light Gathering Power (Compared to human eye): | 212x |
| Secondary Mirror Obstruction: | 35mm (1.38") |
| Secondary Mirror Obstruction by Diameter: | 34% |
| Secondary Mirror Obstruction by Area: | 12% |
| Optical Coatings: | Fully Coated |
| Optical Tube Length: | 381mm (15") |
| Optical Tube Diameter: | 117mm (4.6") |
| Optical Tube Weight: | 6 lbs (2.7 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: | Up to 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
|
| Autoguide 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 lbs (7.25 kg) |
| Included Items: |
Optical tube
Mount and tripod Accessory tray 2x eyepieces 1.25" Star diagonal 1.25" visual back StarPointer™ red dot finderscope Battery pouch |
| Solar Warning |
Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present. |
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