Celestron CGEM-II 925 EdgeHD Telescope
- A 235 mm (9.25-Inch) Aperture Telescope!
- CGEM-II Mount
- Smooth & Quite Performance
- Uninterrupted views Across the Meridian
- 2-Inch Star Diagonal with an 1.25-Inch Adapter
- f/10 & Fastar Compatible to f/2
Celestron CGEM-II 925 EdgeHD Telescope
The CGEM-II 925 EdgeHD by Celestron is a 235 mm (9.25-Inch) Aperture Corrected Schmidt-Cassegrain Telescope with a CGEM-II Mount.
Introducing the EdgeHD Telescope Series, Celestron's new flagship telescope line... and the CGEM-II, Celestron's new and improved German Equatorial Mount!
Celestron has taken another bold step as the market leader in telescopes with the introduction of our latest series of high-end telescopes. Since the moment Celestron first started producing Schmidt Cassegrain optical systems, they have continued to design high-quality optics with pride. After years of research and development, Celestron has now taken one giant step!
The Edge HD is Celestron's latest innovation that will surely be the system of choice for the serious astro-imagers. The new Edge High Definition telescope series features an Aplanatic Schmidt optical system that produces pinpoint star images all the way to the edge of the field. Some optical systems currently on the market may produce coma-free images. But there is a difference.... the optical difference. Not only is the Celestron Edge 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.
These superior features combined with Celestron's recently introduced CGX Pro and CGEM-II mounts keep the new Celestron HD series as the gold standard in Astro Imaging. The EdgeHD is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view.
Many optical designs that advertise themselves as "astrograph" quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.
Now let's talk about Celestron quality...
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 astroimagers, 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.
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.
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.
The new Lithium Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries, great for those Astronomers on the go.
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.
|Aperture||234.95 mm (9.25")|
|Camera/Eyepiece Connection||3.29”x16 tpi|
|Corrected Image Circle||42mm|
|Dawes Limit||0.49 arcseconds|
|Dew Shield Size||262mm|
|Drive Type||Low cog DC servo motors|
|Focal Length||2350 mm|
|Head Design||German Equatorial|
|Instrument Capacity||40 lbs|
|Latitude Range||15 to 70 Degrees|
|Light Gathering Power||1127x|
|Mount Head Weight||40lbs|
|Optical Design||Modified SCT|
|Power Consumption||12V DC 3.2A|
|Slew Speed||5 Degrees Per Second|
|Telescope Connection||Dual Vixen & Losmandy|
|Total Weight||77 lbs|
|Tracking Modes||EQ North|
|Tracking Modes||EQ South|
|Tripod Weight||20 lbs|
|Tube Weight||21 lbs|
|Warranty||2 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 an 1.25-inch Adapter
- 2-inch Eyepiece, 23 mm Wide-Angle Luminos, 102 mag.
- (2) Counterweights, #1=17-pounds, #2=11-pounds
- DC Cigarette Lighter Adapter
- NexRemote CD ROM Software
- 2 Year Warranty