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Celestron C9.25 XLT Schmidt-Cassegrain OTA (CGE dovetail)
Celestron C9.25 XLT Schmidt-Cassegrain OTA (CGE dovetail) 9.25" Schmidt-Cassegrain optical tube, 2350 mm f/10, CGE (Losmandy-style) dovetail bar.
Celestron's classic Schmidt-Cassegrain packs a long focal length into a short, rugged aluminium tube. StarBright XLT coatings on every optical surface maximise light transmission and contrast, so it is equally at home on the Moon and planets, small galaxies and planetary nebulae. Fastar compatible: the secondary mirror can be removed for third-party f/2 imaging systems. Pair it with the Celestron 0.63× reducer/corrector for a faster, wider field.
Optical Optical design Schmidt-Cassegrain Aperture 235 mm (9.25") Focal length 2350 mm Focal ratio f/10 Secondary obstruction 85 mm; 36% by diameter, 13% by area Coatings StarBright XLT Resolution 0.59″ (Rayleigh); 0.49″ (Dawes) Limiting magnitude 14.4 Fastar compatible Yes
Mechanical and package Tube length 559 mm Tube diameter 272 mm Weight 9.07 kg Tube Aluminium Dovetail CGE (Losmandy-style) dovetail bar
Manufacturer documentation Specifications from Celestron's official product page (model 91027-XLT), checked 2026-11-06. Supplier: Nimax item 7939.
Reference
7939
Data sheet
Aperture (mm)
235
Coatings
StarBright XLT
Dovetail
CGE
Focal length (mm)
2350
Focal ratio
f/10
Limiting magnitude
14.4
Optical design
Schmidt-Cassegrain
Tube diameter (mm)
272
Tube length (mm)
559
Weight (kg)
9.07
Specific References
UPC
050234102797
EAN13
4047825004482
MPN
91027-XLT
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9.25" Schmidt-Cassegrain optical tube, 2350 mm f/10, CGE (Losmandy-style) dovetail bar.
Manufacturer model: Celestron 91027-XLT · Specifications checked against manufacturer data on 2026-11-06
