Celestron CGEM-II 925 EdgeHD Telescope Bundle - CE-12018

  • To properly power this product, you will need the AC adapter listed in the recommended items below.
  • A 235 mm (9.25-inch) Aperture Telescope!
  • CGEM-II Mount.
  • Smooth & Quiet Performance.
  • Uninterrupted views Across the Meridian.
  • 2-inch Star Diagonal with a 1.25-inch Adapter.
  • f/10 & Fastar Compatible to f/2.
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  • Regular price $5,979.95
  • $3,549.00
  • You save: $2,430.95 (40%)

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Celestron CGEM-II 925 EdgeHD Telescope Bundle - CE-12018

The CGEM-II 925 EdgeHD by Celestron is a 235 mm (9.25-inch) aperture corrected Schmidt-Cassegrain telescope with a CGEM-II Mount.

The Celestron Edge is coma-free, but it also has a built-in field flattener to ensure sharp focus all the way to the edge of the field, producing true Astrograph quality images. This results in pinpoint, High Definition star images throughout your astrophotographs.

Celestron's Special Features 

The Celestron CGEM-II mount has a fresh, attractive, bold appearance and is capable of carrying Celestron's higher-end SCT optical tubes (up to 11-inch) securely and vibration free which is ideal for both imaging and visual observing.

Ergonomic Design - The Celestron CGEM-II mount was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provide a clean look and an easy and trouble-free set-up.

Innovation - The Celestron CGEM-II series has a new innovative Polar alignment procedure called All-Star (patent pending). All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM-II, sure to please astro-imagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings. Furthermore, the CGEM-II now has a dual-saddle design that permits you to use both kinds of Dovetail Plate with the mount!

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGEM-II mount will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM-II mount has a robust database with over 40,000 objects, 400 user-defined programmable objects and enhanced information on over 200 objects.

Celestron's CGEM-II mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.

Superior mount performance combined with superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. When it comes to the Celestron HD series coupled with Celestron's StarBright XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum... It's a vision you'll never forget.

Included Technology

All-Star Polar Alignment

Get ready for a night of astroimaging with your mount faster than previously thought possible with All-Star Polar Alignment. This innovative software solves the time-consuming problem of trying to pinpoint the North Celestial Pole.

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.

Compatible Technology


The new Lithium Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries, great for those Astronomers on the go.

Starsense Technology

Celestron’s patented StarSense Technology makes it easier than ever to locate objects in the night sky, even if you’ve never used a telescope before. Turn it on and push ‘Align.’ In about three minutes, you’re ready to observe!


WiFi technology encircles the globe in a web of connectivity, knowledge, and information. Now, Celestron is using that same technology to allow stargazers to connect to the night sky and enhance their experience of the cosmos in fun and unique ways.


AP 253mm)
Aperture234.95 mm (9.25")
Back Focus146.05mm
Camera/Eyepiece Connection3.29”x16 tpi
Corrected Image Circle42mm
Dawes Limit0.49 arcseconds
Dew Shield Size262mm
Drive TypeLow cog DC servo motors
FL 2499mm
Focal Length2350 mm
Focal Ratiof/10
FR f/11
Free ShippingYes
Head DesignEquatorial
Highest Magnification469.9x
Instrument Capacity40 lbs
Latitude Range15 to 70 Degrees
Light Gathering Power1127x
Limiting Magnitude15.6
Mount Head Weight40lbs
Optical DesignModified SCT
PortsAutoguide Port
PortsHand Controller
PortsUSB 2.0
Power Consumption12V DC 3.2A
Secondary Obstruction85mm
Slew Speed5 Degrees Per Second
Telescope ConnectionDual Vixen & Losmandy
Total Weight77 lbs
Tracking ModesEQ North
Tracking ModesEQ South
Tracking RatesLunar
Tracking RatesSidereal
Tracking RatesSolar
Tripod Weight20 lbs
Tube Diameter262mm
Tube Length559mm
Tube Weight21 lbs
Warranty2 Year Warranty


  • 235 mm (9.25-inch) 925 EdgeHD Corrected Schmidt-Cassegrain OTA
  • CGEM-II (Celestron German Equatorial Mount - II).
  • Tripod with adjustable 2-inch Steel Legs.
  • Accessory Tray.
  • NexStar+ Hand Controller.
  • 9x50 Finderscope.
  • 2-inch Star Diagonal with a 1.25-inch Adapter.
  • 2-inch Eyepiece, 23 mm Wide-Angle Luminos, 102 mag.
  • (2) Counterweights, #1=17-lb, #2=11-lb.
  • DC Cigarette Lighter Adapter.
  • NexRemote CD ROM Software.
  • 2 Year Warranty.
Customer Reviews
5.0 Based on 2 Reviews
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Cynthia W.
United States
Excellent service from OPT & Peter Meyers

Top notch.. best service; advice, product knowledge, accessory recommendations and overall communication.

Cynthia W.
United States
Excellent service from OPT Peter Meyers

Top notch.. best service, advice, product knowledge, accessory recommendations and overall communication.