Celestron CGE Pro Mount (Without Tripod)

Manufactured by: Celestron
Model: 91529

$4,499.00  $4,049.00
Save: 10%



EMail | Print | Ask a question
Bookmark and Share

 

Celestron CGE Pro Mount (Without Tripod)

In addition to being fully computerized with a database of over 40,000 celestial objects, the New CGE Pro German Equatorial mount has been completely redesigned to offer numerous design advantages for the Astrophotographer:

Increased Payload Capacity
Able to hold our 14" SCT telescope more securely as well as larger optical tubes up to a maximum instrument capacity of 90 lbs (not including counterweights).

All-Star Polar Alignment
Choose any bright alignment star for a software assisted alignment of the mount's 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 past 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.

Power Management
Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced.  This allows the CGE Pro to have the payload capacity of that of much larger (and expensive) mounts without sacrificing smooth tracking motion and pointing accuracy across the entire sky.

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, the 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 gear and 6" pitch diameter worm wheel, precision made cut-steel gears in gearboxes, and seven slot-skewed armature motors, the CGE Pro delivers smooth  +/- 5 arc second tracking accuracy typical unguided periodic error, which can be further reduced with PPEC.

Mount Calibration
Celestron's NexStar hand control has built-in compensation features essential for accurately placing small objects on the center of your CCD chip or high power eyepiece.  Aligning on multiple Calibration Stars creates a model of the opto-mechanical inaccuracies inherent in all equatorial mounts.  This model is stored within the hand control and is used to compensate for these inaccuracies, thus improving your pointing precision each time you slew your telescope.)

Mount Modeling
Celestron's NexStar hand control has built-in mount modeling features essential for accurately placing small objects on the center of your CCD chip or high power eyepiece.  Aligning on multiple Calibration Stars creates a mathematical model of the opto-mechanical inaccuracies inherent in all equatorial mounts.  This model is stored within the hand control and is used to compensate for these inaccuracies, thus improving your pointing precision each time you slew your telescope.

And of course, the CGE Pro is also fully T-Point compatible (available from Software Bisque) for ultra precise pointing across the entire sky.

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 or pier 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. 

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.

All CGE mounted telescopes are compatible with Celestron's SkySync 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.

 

CGE PRO Tracking Data

The following graphs display R.A. worm gear tracking accuracy of the CGE Pro Equatorial mount in 4 conditions: Figure 1 – Raw unguided tracking that isolates the periodic error; Figure 2 – Tracking with Permanent Periodic Error Correction (PPEC) enabled; Figure 3 – Guided tracking with an autoguider; and Figure 4 – Guided tracking with an autoguider and PPEC enabled. Data was acquired from Celestron’s engineering team using an EdgeHD 800 optical tube and NexImage camera at f/10. This data represents the typical performance of a CGE Pro under average seeing conditions from urban skies in Torrance, CA.  Figure 2 has a cubic fit applied to the graph, and Figures 1, 3 and 4 have linear drift removed (to better show repeatable error).  All Figures show 22 minutes of tracking, which covers 4 full rotations of the CGE Pro R.A. worm gear.

  • Holds a maximum instrument capacity of 90 lbs
  • Smooth +/- 5 arc second typical unguided periodic error, which can be further reduced with PPEC
  • Permanent Programmable Periodic Error Correction (PEC) - corrects for periodic tracking errors inherent to all worm drives
  • CGE PRO computerized Equatorial mount
  • One 22 lbs counterweight
  • Weighs 107 lbs
  • Tripod not included, ready to bolt on to your custom pier
EQ Mount Weight75 lbs (34 kg)
Counterweight Bar5 lbs (2.27 kg)
Counterweights1 x 22 lbs
Weight (lbs)154 lbs (70 kg)
Payload Capacity90 lbs (41 kg)
Motor DriveDC Servo motors with encoders, both axes
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,
Computer Hand ControlDouble line, 16 character Liquid Crystal Display; 19 backlit LED buttons
Database40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Power Requirements12 VDC 3.5A
Internal ClockYes
GPSOptional SkySync GPS Accessory
     


Copyright © 2014

FedEx service marks used by permission.
Telescope Parts - Antares