Used - EdgeHD 9.25" Optical Tube Assembly (CGE Dovetail)
Used - EdgeHD 9.25" Optical Tube Assembly (CGE Dovetail)
Item #: U91040-XLT
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2-Year Warranty
Please note: This is a gently used item. For complete product details, specs, and extras, please visit the original product page.
Gently Used, Fully Trusted
At Celestron, we believe the cosmos should be within everyone’s reach. That’s why our gently used items have been rigorously inspected and are in full working order—even if they show a few signs of past adventures. When you purchase this product, you’ll also enjoy the same comprehensive warranty as our new items, giving you confidence and peace of mind to explore the night sky.
Clear skies and happy stargazing!
Specifications
Specifications
| Optical Tube Info: | |
|---|---|
| Optical Design: | EdgeHD |
| Aperture: | 234.95mm (9.25") |
| Focal Length: | 2350mm (93") |
| Focal Ratio: | f/10 |
| Focal Length of Eyepiece 1: | 23mm (0.91") |
| Magnification of Eyepiece 1: | 102x |
| Finderscope: | 9x50 |
| Star Diagonal: | 2" with 1.25" adapter |
| Optical Tube: | Aluminum |
| Highest Useful Magnification: | 555x |
| Lowest Useful Magnification: | 34x |
| Limiting Stellar Magnitude: | 14.4 |
| Resolution (Rayleigh): | 0.59 arc seconds |
| Resolution (Dawes): | 0.49 arc seconds |
| Light Gathering Power (Compared to human eye): | 1127x |
| Secondary Mirror Obstruction: | 85mm (3.35") |
| Secondary Mirror Obstruction by Diameter: | 36% |
| Secondary Mirror Obstruction by Area: | 13% |
| Optical Coatings: | StarBright XLT |
| Optical Tube Length: | 559mm (22") |
| Optical Tube Diameter: | 271.78mm (10.7") |
| Optical Tube Weight: | 21 lbs (9.53 kg) |
| Dovetail: | CGE Dovetail Bar |
| Additional Information | |
| Solar Warning |
|
| California Prop 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
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Included Celestron Technologies
-
Celestron Technology
EdgeHD Optics
Celestron’s aplanatic EdgeHD optics revolutionized astroimaging. This award-winning optical system reduces visual defects like field curvature and coma, creating an ultra-flat field for pinpoint stars all the way to the edge of today’s largest imaging sensors.
Learn More
-
Celestron Technology
Fastar Technology
Fastar Technology allows imagers the option of drastically increasing the speed and sensitivity of their Celestron optical tube, allowing bright, detailed images with short exposures.
Learn More
-
Celestron Technology
StarBright XLT Coatings
One of the most important factors in a telescope is its transmission—the percentage of light that reaches the focal plane. Our proprietary StarBright XLT optical coatings dramatically increase transmission, up to 97.4% on our Schmidt corrector lenses.
Learn More
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Suggested Accessories
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Q:
What is the heaviest recommend load for mounting a camera in the Fastar / HyperStar configuraton?
What is the heaviest recommend load for mounting a camera in the Fastar / HyperStar configuraton?
We recommend a load of no more than 25 lbs. at 4.2 inches away from the 9.25" Schmidt corrector.
| Manuals: | |
|---|---|
| EdgeHD Optics Manual | Download |
| Whitepaper EdgeHD Optics | Download |
| Software & Firmware: | |
| Periodic Error Correction Tool (PECTool) | Download |
| Drawings: | |
| 9.25" EdgeHD Optical Tube Assembly Dimensional Drawing | Download |
| Other Product Files: | |
| SCT & EdgeHD Collimation Guide | Download |
| How to Align a Red Dot Finder to Your Telescope Video | Download |
| Solar Safety Warning | Download |
| What are the Sizes of Collimation Screws | View |
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