Celestron's newest line of observatory class German equatorial telescopes
The CGE Pro computerized series is Celestron's newest line of observatory class German equatorial
telescopes. Offered with 9.25", 11" and 14" aperture Schmidt Cassegrain optical tubes, they all come
mounted on the new state of the art CGE Pro GoTo mount.
The German Equatorial mount has long been the favored choice of astronomy buffs and astrophotographers
because of its stability and portability. More stable because the center of gravity is directly over
the center of its base, more portable because it can be broken down into smaller component parts for
easy storage and transportation.
For astrophotography, the German Equatorial mount offers easier balancing, unlimited space at the rear
of the telescope tube to mount a camera, and whole sky access. Now you can enjoy all of the NexStar
software and database features with the extra stability and portability of a German Equatorial mount.
The CGE Pro 925 Schmidt-Cassegrain Telescope is part of Celestron's "Top-of-the-Line" computerized
German Equatorial mounted astronomical telescopes. It is the most portable of the three size models and
comes mounted on Celestron's new CGE Pro EQ mount. This telescope is especially at home as a solid
platform for long exposure photography with optional CCD cameras or photographic equipment. With over 9
inches of aperture and our premium StarBright XLT coatings, the CGE Pro 925 gives you over 1000 times
the light gathering power than the unaided eye.
As a visual instrument you can search for all of the Messier Catalog objects, and you can see hundreds
of other equally interesting NGC, IC and Caldwell objects. Turn this scope to the planets and see
amazing detail on the surface of Jupiter; see Cassini's Division in the rings of Saturn, and resolve
details on the surface of Mars. Even the distant Uranus, Neptune and Pluto are within your reach.
In addition to being fully computerized with a database of over 40,000 celestial objects, the CGE Pro
German Equatorial mount has been completely redesigned to offer numerous design advantages:
* Increased Payload Capacity " With a maximum payload of 90lbs the CGE Pro mount is able to hold
the 9.25" telescope more securely even when fully loaded with all your imaging gear.
* All-Star Polar Alignment " Choose any bright alignment star for a software assisted alignment
of the mounts polar axis that will have you ready for imaging even if you can't see the North Star.
* No-Tool polar alignment " Larger hand knobs for both Altitude and Azimuth adjustments.
* Meridian Tracking " Extended tracking pass the Meridian of up to 20 degrees of uninterrupted
imaging through the best part of the sky.
* Faster slew speed " Improved gearing and motors provide faster slew speeds than ever before
with a maximum slew rate of over 5°/per second.
* Accuracy " The hallmark of any telescope mount is its ability to find, center and track
celestial objects with the highest degree of accuracy.
* Pointing " With just a standard hand control alignment, CGE Pro has the ability to center a
star in your eyepiece or ccd chip to within 5 arc minutes. Using NexStar's advanced pointing features
such as Calibration Stars, Sync and Precise GoTo, further improves the pointing accuracy to as low as 1
arc minute in the desired region of the sky.
* Tracking " With larger .75" pitch diameter worm, precision made cut-steel gears in gearboxes,
and seven slot skewed armature motors the CGE Pro delivers typical tracking performance of +-9 arc
seconds, which can be further reduced with the mounts permanent periodic error correction (PPEC).
In addition to these improvements, the Celestron line of German Equatorial mounts has long been
recognized for features preferred by visual observers and astrophotographer alike. Among them include:
* Portability " Set up and transportation of the CGE Pro telescopes is made easy by separating
the mount into smaller, easy-to-carry components. Unlike fork arm mounted telescopes, the CGE's optical
tubes can be quickly removed from their mounts making even the CGE Pro1400 easily assembled in
minutes.
* Stability " Recognized for superior stability, German Equatorial mounts place the center of
gravity directly over the tripod legs and can be easily polar aligned without the use of an optional
equatorial wedge. This proven design reduces the “tuning fork” vibration that can be associated
with undersized fork mounts. An improved Super HD Tripod supports the CGE Pro mount. This fully
extendable tripod is made from the finest 2.75" stainless steel and can be raised to a height of 55".
The tripod uses a dual leg support for maximum rigidity with an upper leg brace to provide an outward
preload and a lower leg brace providing inward tension.
* Balance " CGE Pro equatorial mounts can easily be balanced in both axes. Simply sliding the
counterweight for Right Ascension and moving the optical tube along its dovetail mounting for
Declination accomplish balancing the weight of camera equipment and other visual accessories. This
means that no additional weight needs to be added to balance the telescope when additional accessories
are added. Clearance " CGE Pro mounts support their tubes at a single contact point allowing the tube
to move freely around its polar axis without making contact with the telescope's mount. Software
features allow the user to set the mounts slew limits to guaranty safe motion. This is particularly
useful when adding photographic and CCD instruments that extend from the rear of the telescopes.
* Clearance " CGE Pro mounts support their tubes at a single contact point allowing the tube to
move freely around its polar axis without making contact with the telescope's mount. Software features
allow the user to set the mounts slew limits to guaranty safe motion. This is particularly useful when
adding photographic and CCD instruments that extend from the rear of the telescopes.
All CGE mounted telescopes are compatible with Celestron's CN-16 GPS accessory. Combine the GPS and
built-in real time clock and these telescopes will keep track and remember their exact location and
time without having to enter the information into the hand control.
For more information about Celestron's new mount, go to the CGE Pro mount web page.
CGE Pro 925 General Features
* 9.25" Schmidt-Cassegrain telescope
* 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
CGE Pro 925 Computerized Mount Features
* Proven NexStar computer control technology
* 40,000 object database with 400 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: 10º to 65º 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)
Tech Specs
Optical Design : Schmidt-Cassegrain
Aperture : 235 mm (9.25 in)
Focal Length : 2350 mm (92.52 in)
Focal Ratio : 10
Finderscope : 6x30
Mount : CGE Pro Computerized Equatorial
Optical Tube : Aluminum
Eyepiece 1 : 25 mm (0.98 in)
Magnification 1 : 94 x
Star Diagonal : 1.25
Tripod : Adjustable, 2.75" Stainless Steel legs
CD ROM : NexRemote control software with RS232 cable
Power Supply : Car battery adapter
Highest Useful Magnification : 555 x
Lowest Useful Magnification : 34 x
Limiting Stellar Magnitude : 14.4
Resolution (Rayleigh) : 0.59 arcsec
Resolution (Dawes) : 0.49 arcsec
Light Gathering Power : 1127 x
Angular Field of View : 0.53 °
Linear Field of View (@1000 yds) : 28 ft (8.53 m)
Optical Coatings : Starbright XLT Coating
Secondary Mirror Obstruction :
3.35 in (85.09 mm)
Secondary Mirror Obstruction by Area : 13.1 %
Secondary Mirror Obstruction by Diameter : 36.2 %
Optical Tube Length : 22 in (558.8 mm)
Optical Tube Weight : 20 lb (9.07 kg)
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