• Celestron CGEM II 925 EdgeHD Bundle
  • Celestron CGEM II 925 EdgeHD Bundle
  • Celestron CGEM II 925 EdgeHD Bundle
  • Celestron CGEM II 925 EdgeHD Bundle
  • Celestron CGEM II 925 EdgeHD Bundle

Celestron CGEM II 925 EdgeHD Bundle

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  • 9.25” EdgeHD optics
  • CGEM II computerized equatorial mount
  • Celestron’s premium StarBright XLT coatings provide maximum light transmission
  • A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included

      CGEM II 925 HD combines Celestron's newly redesigned CGEM II computerized equatorial mount with its acclaimed EdgeHD optical system. With over 9 inches of aperture and our premium StarBright XLT coatings, the CGEM II 925 HD gives you over 1000 times the light gathering power than the unaided eye. Designed to give diffraction limited performance and offer more resolution than the 800 with less weight than the 1100, the CGEM II 925 HD is a premier astroimaging telescope.


      See the Universe in HD
      EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces 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; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.

      True Astrograph Quality
      Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the 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 competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today. Learn more about EdgeHD technology.

      Improved Performance
      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. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.

      Mechanical Features
      In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night.

      • Mirror clutches - Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).
      • Tube vents - Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.
      • Fastar versatility - EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. A Barlow gives you added power for high-resolution planetary, lunar and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third party lens accessory for ultra-fast f/2 wide field imaging.

      Individually Tested
      Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. This “final acceptance test” confirms the EdgeHD will perform in the field and deliver high-quality astroimages. 


      A fresh update to the venerable CGEM mount, the CGEM II has a fresh, attractive, bold appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11") securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding 40 lbs. of payload and slewing at 5° per second, you will be able to instantly point to any of the celestial objects in the database.


      CGEM II 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 provides a clean look and an easy and trouble free set up.


      The CGEM II series features Celestron’s innovative Polar alignment procedure called All-Star™. 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.


      For objects near the Meridian (imaginary line passing from North to South), the CGEM II 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, 100 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.


      Optical Design EdgeHD
      Aperture 235 mm (9.25")
      Focal Length 2350 mm (93")
      Focal Ratio f/10
      Focal Length of Eyepiece 1 23 mm (0.91")
      Magnification of Eyepiece 1 102x
      Finderscope 9x50
      Star Diagonal 1.25" Star Diagonal
      Optical Tube Aluminum
      Highest Useful Magnification 555x
      Lowest Useful Magnification 34x
      Limiting Stellar Magnitude 14.4
      Resolution (Rayleigh) 0.59 arc seconds
      Resolution (Dawes) 0.49 arc seconds
      Light Gathering Power (Compared to human eye) 1127x
      Secondary Mirror Obstruction 85 mm (3.35")
      Secondary Mirror Obstruction by Diameter 36%
      Secondary Mirror Obstruction by Area 13%
      Optical Coatings StarBright XLT
      Optical Tube Length 559 mm (22")
      Optical Tube Weight 21 lbs (9.53 kg)
      Dovetail CGE Dovetail Bar
      Mount Type Computerized Equatorial
      Instrument load capacity 40 lbs (18 kg)
      Height adjustment range (includes mount and tripod) 1346 - 1651 mm (53 – 65")
      Tripod Leg Diameter 50.8 mm (2") Steel tripod with graduated markings on lower section
      Latitude adjustment range 15° - 70°
      Total EQ Head Weight 41 lbs (18.6 kg)
      Accessory Tray Yes
      Tripod Weight 20 lbs (9 kg)
      Weight of Counterweights 1 x 17 lbs
      Slew Speeds 9 slew speeds
      Tracking Rates Sidereal, Solar and Lunar
      Tracking Modes EQ North & EQ South
      GPS N/A
      Dovetail Compatibility Dual saddle plates (Vixen and CGE saddle)
      Number of Auxiliary ports 2 (1x Hand control port and 1x AUX Port for optional accessories)
      Autoguide port Yes
      USB Port Yes
      Power Requirements 12 VDC, 3.2 amps
      Motor Drive Low cog DC servo motors
      Alignment Procedures AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
      Periodic Error Correction Yes
      Computer Hand Control Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2 0 port for PC connection
      Database 40,000+ objects, 100 user defined programmable objects Enhanced information on over 200 objects
      Software Starry Night Celestron Edition Or Much Upgraded Starry Night Pro & Pro Plus 8 Available
      Included Accessories CGEM II Equatorial Head|Tripod|Accessory Tray|1 x 17 lbs counterweight|NexStar+ Hand Control|DC Power Cable (plugs into cigarette lighter socket)|8 mm Allen wrench (contained in rear carry handle)

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      Automatic download of Starry Night Pro Plus generated upon checkout when selected.  Learn more about the world-class desktop planetarium, Starry Night Pro Plus, here: http://store.simcur.com/proplus

      $4,599.00 USD $4,860.00