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Celestron - C14-A XLT (CGE) Optical Tube Assembly - DISCONTINUED


Discontinued Product

Manufactured by: Celestron


This product is discontinued. The C14-A XLT Fastar OTA replaces the C14-A XLT OTA

Catadioptric designs like Schmidt-Cassegrain are often praised for their imaging abilities since they don't suffer many of the optical diffractions seen in traditional refractors and reflectors. Because of the general nature of the design with a corrector plate and a mirror, Schmidt-Cassegrains like the Celestron C14-A XLT generally have slow focal ratios compacted in a smaller dimension. This makes them quite good for viewing planets and imaging planets at high magnifications. Their focal ratios can also be reduced to a faster focal ratio with the additional of an optional reducer lens that makes deep sky imaging more prominent in imaging, especially with larger CCD sensors and larger pixel sizes. This overall helps with resolution and faster exposure times. The Celestron C14-A and other Schmidt-Cassegrain optical tubes are coated with StarBright XLT with improve light transmission more efficiently than most aluminum standard coatings. For visual users, Celestron has included a 40mm eyepiece, visual back for 2" accessories, 9x50 finderscope, and a 2" mirror diagonal as included accessories. This optical tube model has a CGE dovetail connection to connect to the CGE Equatorial Mount.

  • 14" aperture
  • f/11 focal ratio
  • Schmidt-Cassegrain optical design
  • StarBright XLT Coatings
  • 40mm eyepiece
  • Visual back for 2" acessories
  • 9x50 finderscope
  • 2" mirror diagonal
  • CGE dovetail connection








Product Series

Celestron’s excellent Schmidt-Cassegrain telescopes are compact and portable and represent the best all-purpose design for a wide variety of uses from terrestrial and deep sky viewing to astrophotography.

Additional Information

Name Celestron - C14-A XLT (CGE) Optical Tube Assembly - DISCONTINUED
Manufacturer Celestron
Model 91037-XLT
Discountinued Yes
Custom Stock Status Out of Stock
Aperture 355.6 mm (14 in)
Dovetail Compatibility CGE Mount
Finderscope 9x50
Focal Length 3910 mm (154 in)
Focal Ratio f/11
Highest Useful Magnification 840 x
Light Gathering Power 2581 x
Limiting Stellar Magnitude 15.3
Lowest Useful Magnification 51 x
Magnification 1 98 x
Optical Coatings StarBright / XLT
Optical Design Schmidt-Cassegrain
Optical Tube Aluminum
Optical Tube Length 31 in (787 mm)
Optical Tube Weight 45 lbs (20 kg)
Resolution (Dawes) 0.33 arc seconds
Resolution (Rayleigh) 0.39 arc seconds
Secondary Mirror Obstruction 4.5 in (114 mm)
Secondary Mirror Obstruction by Area 10 %
Secondary Mirror Obstruction by Diameter 32 %
Star Diagonal 1.25"