- 90mm Refractor OTA
- 910mm Focal Length, f/10 Focal Ratio
- Anti-Reflection Coated Optics
- 1.25" Focuser, 10mm and 25mm Eyepieces
- Single-Arm Motorized Alt-Az Mount
- Control Mount via SkyPortal App
- 120,000+ Image Database
- Alignment Aids, Automatic Tracking
- 90° Star Diagonal / Red-Dot Finder
- Adjustable-Height Aluminum Tripod
Celestron 's Astro Fi 90mm f/10 GoTo Refractor Telescope utilizes an integrated antenna to emit a local Wi-Fi signal so you can control the mount via Android and iOS smartphones and tablets running the free SkyPortal app. Optically, the scope sports a 90mm aperture, a long 910mm focal length, and fully coated optics so you can make detailed observations of the Moon, and view planets, comets, and satellites. This complete observation rig includes the optical tube assembly, a motorized mount, 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 get set up and start observing quickly. The app offers alignment aids, it automatically finds objects in the night sky, builds customized guided tours, has automatic tracking rates for near and deep-sky objects, and multiple slew speeds. Supporting the OTA and mount is an aluminum adjustable-height tripod. The entire rig assembles and breaks down without the need for tools, so you can set it up easy and start observing sooner.
- Optical Performance
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- 90mm aperture
- f/10.1 focal ratio
- 910mm focal length
- Refractor optical design
- Anti-reflection fully coated optics increases light transmission, and improves contrast and color rendition
- Resolution: 1.54 arcsec, Rayleigh; 1.29 arcsec, Dawes
- Mount and Tripod
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Mount: - Motorized single-arm alt-az
- Runs on eight user-supplied AA batteries
- Quick-release base, OTA, accessory tray with rapid no-tool set up
Tripod: - Adjustable-height
- Lightweight and durable 2-section aluminum legs
- Spiked feet for steady footing in soft ground
- Computer Control
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Integrated Wi-Fi antenna: - Mount generates a local WiFi signal
- Directly connect 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
- 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 plan a future observing session
- Night Vision Mode preserves night-adjusted vision
- Multiple assisted-alignment choices: SkyAlign, 3-Star, Solar System
- Tracking rates: Sidreal, solar, and lunar
- Automatic tracking for near and deep sky objects
- Multiple slew speeds, up to 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
Database objects: - Solar system: Moon, Sun, and planets
- Star clusters
- Nebulae
- Galaxies
- Asteroids and comets
- Satellites, including the International Space Station
- Included Accessories
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Eyepieces: - 1.25" barrel diameter
- 25mm produces 36x magnification
- 10mm produces 91x magnification
Diagonal: - 90° angle
- Star diagonal vertically corrects image for terrestrial viewing
Finderscope: - Un-magnified StarPointer
- Red-dot reticle
- Variable intensity
UPC: 050234222013
| Optical Design | Refractor |
| Aperture | 90 mm |
| Focal Length | 910 mm |
| Focal Ratio | f/10.1 |
| Eyepiece Barrel Diameter | 1.25" |
| Diagonal | 90° star |
| Finderscope | StarPointer red-dot finder |
| Tripod | Adjustable height, aluminum |
| Mount Type | Motorized single-arm alt-az |
| Power Source | 8 x AA batteries |
| Optical Tube Length | 37.2" / 94.5 cm |
| Weight | 13.6 lb / 6.2 kg (total) |
| Packaging Info |
| Package Weight | 24.5 lb |
| Box Dimensions (LxWxH) | 43.5 x 15.5 x 10.0" |
In the Box
Celestron Astro Fi 90mm f/10 GoTo Refractor Telescope
- StarPointer Finderscope
- Battery Holder
- 10mm Eyepiece
- 25mm Eyepiece
- 90° Star Diagonal
- Aluminum Tripod with Accessory Tray
- Limited Two-Year Warranty
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