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Celestron

Celestron CGEM II 11" Schmidt-Cassegrain Telescope with GoTo EQ Mount

Based on 6 reviews
Condition: New
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$4,299.00

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Availability: Only 1 left in stock, order soon!
Fulfilled by Adorama
Arrives Thursday, Nov 12
Order within 20 hours and 51 minutes

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At a glance

Condition
New
Dimensions
38.5"D x 21.5"W x 21.5"H
Weight
148.5 lb
Optical Tube Length
61 cm
Focus Type
Manual Focus
Power Source
Battery Powered
Finderscope
9x50
Works with
Camera, Laptop, Smartphone, Tablet

Features 5

  • SUPERIOR OPTICS - Features a Schmidt-Cassegrain optical design with a large 11-inch aperture, providing exceptional light-gathering ability for bright, detailed views of celestial objects.
  • HIGH MAGNIFICATION POWER - Achieve up to 660x magnification with compatible eyepieces, revealing intricate details on planets, the Moon, and deep-sky objects with stunning clarity.
  • STARBRIGHT XLT COATINGS - Benefit from enhanced light transmission and contrast thanks to Celestron's premium StarBright XLT optical coatings, ensuring brighter and sharper images.
  • COMPUTERIZED GO-TO MOUNT - The CGEM II equatorial mount with NexStar hand control boasts a database of over 40,000 objects, making it easy to locate and track celestial targets automatically.

Description

For astronomy enthusiasts and professional stargazers alike, the CGEM II 1100, 11" Schmidt-Cassegrain Telescope is a top-tier choice, offering a blend of superior performance, innovative features, and ergonomic design. This advanced telescope is equipped with Celestron's premium StarBright XLT coated optics, ensuring crystal-clear, high-contrast images of celestial bodies.The CGEM II 1100 is a lightweight yet robust telescope, with the optical tube assembly weighing a mere 27.5 lbs. Despite its portability, it boasts an impressive 89% more light gathering power than an 8" telescope, and over 40% more than the 9.25". This makes it an ideal tool for both amateur and professional astronomers seeking to explore the dark skies in detail.The redesigned CGEM II computerized equatorial mount is a standout feature of this telescope. It's capable of securely holding Celestron's higher-end SCT optical tubes (up to 11"), providing a vibration-free platform that's perfect for long exposure photography with optional CCD cameras or other photographic equipment.The CGEM II 1100 is not just about power and performance; it's also designed for user- friendly operation. The large Altitude and Azimuth adjustment knobs allow for quick and easy polar alignment adjustment, while the internal RA and DEC motor wiring ensures a clean look and trouble-free setup.Innovation is at the heart of the CGEM II series, featuring Celestron's unique All-Star polar alignment procedur

Specs 29

Brand Celestron
Model Name CGEM II 1100 Schmidt-Cassegrain Telescope
Optical Tube Length 61 centimeters
Eye Piece Lens Description Plossl
Objective Lens Diameter 27.9 centimeters
Telescope Mount Description Equatorial Mount
Product Dimensions 38.5"D x 21.5"W x 21.5"H
Focus Type Manual Focus

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Amazing Telescope
This is an amazing instrument. It breaks down into small pieces that a fit, single person can carry and setup in his or her backyard. Deep sky objects are bright, which lessens the need for averted vision to view many Messier and Herschel objects. With an OIII filter, nebula are stunning. Planets are sharp. Once the scope is aligned, it flawlessly locates thousands of objects in the sky. It can even find objects that are not in its database using celestial coordinates. It is impressive just watching it slew to different sky locations. I recommend purchasing a focal reducer and a polar alignment scope, but these are not required. Be careful with the mount. The azimuth knobs are large, but do not overtightening them because the threads can strip. Turn them carefully. Realize the mount is made of a softer metal to make it lighter. The screws in the mount can work themselves loose over time as the telescope is attached using the dovetail, so it is best to check them periodically. However; these are minor issues that do not detract from the enjoyment of the product. I did not regret me purchase. ... show more
Reviewed in the United States on September 12, 2020 by Sharon C. Petersen
Amateurs Beware
This might sound lame given the price, but people who are new to astronomy might be better off not starting with this. We had bought are son a few telescopes before, but all were really bad, to put it bluntly. We thought that by splurging for this, we’d all be able to enjoy seeing stars, the moon in detail, etc. I consider myself reasonably tech savvy, and after buying the GPS unit for this, I can’t figure it out to save my life. Attempted to set GPS alignment with the closest major city in the unit’s database (15 mins away) and set alignment for the moon. The telescope aimed about 90 degrees off it. After setting alignment manually, we tried searching for various stars (none of which we know the names of) and it repeatedly attempted to aim at the ground. I don’t doubt that it works properly, I just think it’s probably intended for people who are already well versed in the field. Here’s hoping we figure it out - haven’t given up yet, but so far, it’s been a frustrating process to say the least. Even when aimed at the moon very clearly, all we see is a vague bright spot in the eyepiece. Focus knob doesn’t help regardless of which way it’s adjusted. ... show more
Reviewed in the United States on February 13, 2025 by Amazon Customer
Most Awesome !!!!!
Most awesome telescope I've ever had. Have wanted one of these for years. Was worth the patience.
Reviewed in the United States on December 8, 2025 by Mike Scitern
Celestron has outdone itself! Again!
Definitely an upgrade from my old Celestron Ultima C8
Reviewed in the United States on May 8, 2019 by Elmer
A very fun telescope.
A very fun telescope! It does take a bit to get setup and learn but it is worth it to take the time to get it right.
Reviewed in the United States on April 19, 2026 by EC.
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