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Item Includes Description Features Specifications

Celestron CGE Pro 925 HD 9.25" EdgeHD Schmidt-Cassegrain Telescope

Mfr. Part: 11092     SKU: CNCGEP925HD

Celestron CGE Pro 925 HD 9.25" EdgeHD Schmidt-Cassegrain Telescope
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Item Includes
Celestron 9.25" CGE Pro 925 Schmidt-Cassegrain Telescope - NexRemote Telescope Control Software - CGE Pro Computerized Equatorial Mount - Tripod - Clestron 2 Years Limited Warranty

Description
Introducing Celestron's New Aplanatic Schmidt-Cassegrain Telescope Design!
· Visibly Sharper Images
· Superior Performance
· Enhanced Mechanical Features
· Fastar® Compatible

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.

True Astrograph Quality
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.

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.

Starbright XLT® Coatings
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.

Mechanical Features
In addition to Celestron's new optimized optical design, the EdgeHD tube has been redesigned to give you the most from your optics each and every night.

Mirror Clutches
Flexible tension clutcher hold the mirror in place and reduce image shift when rotating the tube around the mount. 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 chip).

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 60 micron micro-mesh filter guaranteed to let warm air out without letting dust in.

Fastar Versatility
The EdgeHD is the most versatile imaging scope available today. At its native f/10 you can achieve the image scale necessary to capture the smallest of deep sky objects. With the optional reducer lens (coming soon) you can increase your field of view without sacrificing optical performance. A barlow gives you the added power for high resolution planetary, lunar and solar imaging. And of course all EdgeHD optical tubes are Fastar® compatible for ultra fast f/2 wide field imaging. Each tube has been fitted with a removable secondary mirror and are laser bench aligned to ensure they are axially symmetric.

Features
Celestron premium StarBright XLT coatings
CGE PRO computerized Equatorial mount
Schmidt-Cassegrain mechanism that moves the primary mirror to adjust focus is supported by two pre-loaded ball bearings, minimizing the "mirror flop" typical of bushing focus mechanisms
Heavy duty stainless steel tripod adjustable from 38 - 55"
6x30 finderscope to help accurately find objects
Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
Proven NexStar computer control technology
40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
New All-Star Polar Alignment routine for both Northern and Southern Hemispheres.
Software Features include: Database Filter Limits, Hibernate, five alignment methods and user-defined slew limits.
Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms
Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features
12VDC Servo Motors with integrated optical encoders
Permanent programmable periodic error correction (PEC) - corrects for periodic tracking errors inherent to all worm drives
Drive Motors - High quality motors with seven slot skewed armature to minimize magnetic cogging for quiet operation and long life. Precision made cut-steel gears in gearbox for Improve tracking precision.
Bearing and Shaft - Main shafts are made from 1.57" diameter steel tubing with .40" wall thickness with two preloaded 2.68" O.D. tapered roller bearings on each axes
Precision worm drive system - .75" pitch dia. precision made steel worm preloaded with two .87" OD ball bearings to minimize run-out (a source of periodic error). 255 tooth 6" pitch dia. precision made worm wheel with enveloping brass teeth
Spring loaded DEC worm to minimize backlash and makes guiding easy.
4 point RA and DEC clutch system for no-slip pointing precision
Autoguide port, PC port and auxiliary ports located on the electronic pier for long exposure astrophotography
Latitude range: 10° to 65° northern or southern hemispheres
RS-232 communication port on hand control to control the telescope via a personal computer
Includes NexRemote telescope control software, for advanced control of your telescope via computer
GPS-compatible with optional CN16 GPS Accessory (93967)

Specifications
Optical DesignSchmidt-Cassegrain
Aperture235 mm (9.25")
Focal Length2350 mm (92.52")
Focal Ratio10
Finderscope6x30
MountCGE Pro Computerized Equatorial
Optical TubeAluminum
Eyepiece 125 mm (0.98")
Magnification 194x
Star Diagonal1.25
TripodAdjustable, 2.75" Stainless Steel legs
CD ROMNexRemote control software with RS232 cable
Power SupplyCar battery adapter
Highest Useful Magnification555x
Lowest Useful Magnification34x
Limiting Stellar Magnitude14.4
Resolution (Rayleigh)0.59 arcsec
Resolution (Dawes)0.49 arcsec
Light Gathering Power1127x
Angular Field of View0.53 °
Linear Field of View (@1000 yds)28 ft (8.53 m)
Optical CoatingsStarbright XLT Coating
Secondary Mirror Obstruction3.35" (85.09 mm)
Secondary Mirror Obstruction by Area0.131
Secondary Mirror Obstruction by Diameter0.362
Slew SpeedsNine slew speeds 5.5 deg/s, 2 deg/s, 0.5 deg/s, 64x, 16x, 8x, 4x, 1x, 0.5x
Tracking RatesSidereal, Solar and Lunar
Tracking ModesEQ North and EQ South
Alignment Procedures2-Star Align, Solar System Align, Last Alignment, Quick Align, 1-Star Align
Database40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Power Requirements12 VDC 2.5A
Internal ClockYes
GPSOptional CN-16 GPS Accessory
Dimensions22" (558.8 mm) - Optical Tube Length
Optical Tube Weight20 lb (9.07 kg)
Tripod and Pier Weight52 lb (23.59 kg)
EQ Mount Weight75 lb (34.02 kg)
Counterweight Bar5 lb (2.27 kg)
Counterweights1 x 22 lb
WarrantyCelestron 2 years limited warranty