Celestron CGEM-1100 11"/280mm Catadioptric Telescope Kit

SKU: 11099

Starting at $307/mo

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In the box

Celestron 11" SCT (CGE) Optical Tube Assembly

  • Celestron 11 SCT (CGE) Optical Tube Assembly
    • 11 Schmidt-Cassegrain Optical Tube Assembly
    • 25mm Eyepiece 
    • 1.25 Visual Back
    • 9x50mm Finderscope
    • 1.25 Star Diagonal
    • CGE Dovetail Rail
  • Two Year Warranty

From The Wavelength Blog Read more

Celestron CGEM-1100 11"/280mm Catadioptric Telescope Kit

The Celestron CGEM-1100 11"/280mm Catadioptric Telescope Kit is an enormous fully-loaded scope with automatic "GO-TO" observing and professional imaging capacity. Its NexStar computerized hand controller makes simple viewing a breeze, even for beginners. The robust CGEM equatorial mount gives a rock steady base for imagery that's free from annoying jitters which rob even the best of optics, and it also learns over time to correct for the periodic tracking errors inherent in every telescope mount. The combination of 11" aperture with automated viewing at this price is impressive for all having dual interest in viewing and astrophotography.

Celestron 11" SCT (CGE) Optical Tube Assembly

The night sky has always fascinated individuals and with good reason. The heavens are teeming with life, but sadly, most of it is not visible to the naked eye. Now with the study of Astronomy and the invention of telescopes, the moon, stars and planets are all within reach. With the right instruments, there's no telling what you might see.

The Celestron 11" SCT (CGE) Optical Tube Assembly is ideal for capturing breathtaking views of galaxies, star clusters, nebulae and planets. Celestron 11" SCT Optical Tube Assembly has a number of features that provide you with optimum light transmission and brighter, crisper images ideal for the astronomy enthusiast. The night sky is now in your hands.


With an optical tube that measures 24-inches in length and weighs 27.5 pounds, this mid level optical instrument meets the demands of observers and astrogimagers who want a telescope that's more portable than a reflector or refractor.The scope offers a large 11" aperture and a long focal length of 2800 mm.

Celestron's unique StarBright XLT optical coatings dramatically increase light transmission by up to 97 percent on its Schmidt corrector lenses. Vew pinpoint stars across the largest imaging sensors in bright, crisp detail and capture breathtaking, sharp, flawless astroimages.

The 11" Schmidt-Cassegrain Optical Tube Assembly has an aluminum optical tube and comes with a 25 mm eyepiece and a visual back which allows for use with other 1.25" accessories. The 9x50 finderscope helps accurately find objects in the night sky and the star diagonal provides more comfortable viewing position when observing objects that are high in the sky. The 11" OTA includes a dovetail rail compatible with CGE Advanced Series mount.

Celestron CGEM-1100 11"/280mm Catadioptric Telescope Kit


OTA OnlyMount Only
Optical DesignSchmidt-Cassegrain

Celestron 11" SCT (CGE) Optical Tube Assembly


Weight27.5 lb

Optical Tube Assembly

Optical DesignSchmidt-Cassegrain
Diagonal FunctionStar Diagonal
Eyepiece Barrel Diameter1.25"

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