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Celestron CGEM DX 11 Inch Edge HD Optics Telescope

Item# CELE461
 
5.0

(4 Ratings)

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$3,959.00

List Price: $7797.95
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  • All new CGEM DX mount with 11 Inch EdgeHD Optics
  • 40,000 object database
  • "All Star" polar alignment routine
  • NexRemote telescope control software for PC
Details & Dimensions
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Description

The Celestron CGEM DX 1100 HD combines Celestron's newly designed  CGEM DX Computerized Equatorial mount with its new EdgeHD optical system.  With an optical tube assembly weighing only 28 lbs, this telescope is still portable enough to be taken to dark skies, and has 89% more light gathering power than an 8" telescope and 40% more than the 9.25". 

 

Celestron CGEM DX Equatorial Mount

 

The Celestron CGEM DX mount is the newest member of our fully computerized Equatorial mount series capable of carrying Celestron’s high-end 11" and 14" optical tubes. The CGE PRO style, 2.75" leg tripod holds even our 14" optics securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding 50 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.

 

German Equatorial mounts are recognized for their rock solid stability, simple balancing and easy accessibility for attaching accessories. With sophisticated software features like the Hibernate function, the CGEM DX can maintain its star alignment night after night without needing to be re-aligned, making it an excellent choice for a permanent observatory facility.

 

Ergonomic Design - CGEM DX 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. Innovation - The CGEM DX series has a new 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 DX 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.

 

Performance - For objects near the Meridian (imaginary line passing from North to South), the CGEM DX will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects.

 

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 CGEM DX to have the payload capacity of that of much larger mounts without sacrificing smooth tracking motion and pointing accuracy across the entire sky.

 

New Optical Design - EdgeHD 

 

The EdgeHD optical system takes all of the compact power popularized by the Schmidt Cassegrain Telescope (SCT) and combines it with an improved high definition optical system for wide field, astrograph quality images. As a visual instrument, EdgeHD optics deliver pinpoint images even with your widest field eyepiece. You can search for all of the Messier Catalog objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For astroimaging, the EdgeHD optics produce aberration-free images across your favorite CCD or DSLR camera. All EdgeHD optics are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial CCD detectors, allowing all stars to be in tight focus to the very edge of the chip.

 

Diffraction Limited

 

Some companies boast that their telescopes give diffraction limited stars in the very center of the field of view. EdgeHD optics not only produce diffraction limited stars on axis, but maintain diffraction limited stars across the entire field of view of many of the most popular astrophotography cameras.

 

Even at the very edge of a full frame camera chip, the EdgeHD 14" delivers star sizes of only 1 arc second!

 

Along with the newly designed optics, the EdgeHD also has re-designed mechanics guaranteed to help you get the maximum performance from your instrument.

 

Features Include:

 

Mirror Locks – To hold the mirror in place and reduce image shift during imaging.

 

Tube Vents - Each vent has an integrated 60 micron micro-mesh filter allowing hot air to be released from behind the primary mirror.

 

Fastar Versatility – All EdgeHD optical tubes are equipped with a removable secondary mirror for fast f/2 CCD imaging. Not only does imaging in the FASTAR configuration allow for exposure times that are 25 times faster than at f/10, but also yields a field of view five times wider. The perfect combination for imaging your favorite wide field objects in a fraction of the time. (FASTAR imaging requires a third party lens assembly in place of the secondary mirror).

 

82° Eyepiece - EdgeHD 11" optical tubes come with Celestron's top of the line 2" barrel eyepiece. With a 23 mm focal length and 82° AFOV, you get an incredible combination of power and wide field of view. Plus this 6-element eyepiece is optimized to deliver pinpoint images when used with a flat field telescope. Learn more about the benefits and features of this new optical system by going to the EdgeHD web page. The EdgeHD 14" optics produce a focal plane three-times flatter than the standard equivalent SCT telescope with diffraction limited stars to the very edge of the SBIG STL6303 field of view!

 

Celestron CGEM DX 1100 HD - General Features

 

  • 11"; EdgeHD Optics
  • New Celestron CGEM DX Computerized Equatorial Mount
  • Celestron's premium StarBright XLT coatings
  • 9x50 finderscope to help accurately find objects
  • Ultra sturdy 2.75" steel tripod with Accessory Tray
  • Star diagonal provides more comfortable viewing position when observing objects that are high in the sky

 

Celestron CGEM DX 1100 HD - HD Features

 

  • New aplanatic Schmidt telescope design produces aberration-free images across a wide field of view
  • Mirror tension locks hold the primary mirror in place and reduce image shift
  • Cooling vents allow hot air to be released from behind the primary mirror
  • Fastar compatible for fast f/2 imaging

 

 

Celestron CGEM DX 1100 HD - Computerized Mount Features

 

  • 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 uses any bright star for a quick and accurate Polar alignment
    Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures
  • 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 stars; solar system objects and asterisms
  • Permanent Programmable Periodic Error Correction (PEC) - corrects for periodic tracking errors inherent to all worm drives
  • Drive Motors - Low Cog DC Servo motor with integrated optical encoders offer smooth, quiet operation and long life. The motor armatures are skewed to minimize cogging which is required for low speed tracking.
  • Internal Cable wiring for trouble-free setup and transportation
  • Designated six-pin RJ-12 modular jack, ST-4 compatible guide port
  • Autoguide port and Auxiliary ports located on the electronic plate for long exposure astrophotography
  • Double-line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features
  • RS-232 communication port on hand 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 SkySync GPS Accessory
  • Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings.
  • Secure power plug ensures that the mount's power source is not accidentally disconnected

 

 

Celestron All-Star Polar Alignment Technology


All-Star Polar Alignment Technology
German Equatorial Mounts (GEM) have long since been recognized as the mount of choice for astrophotography. Needing to track in only one axis for long exposures; adjustable counterweights and tube position for perfect balance, the GEM has few short comings when it comes to imaging. In order to do long-exposure astro-imaging, an equatorially aligned telescope is needed to allow your telescope to properly track the motion of the sky. However accurate tracking still depends on an accurate polar alignment. Even with a visible star very near the North Celestial Pole (NCP), the true celestial pole can be a very elusive place to find without assistance.

 

Now select Celestron mounts can utilize a new 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.

 

Here's how it works.

Once your telescope is aligned with two bright star, All-Star allows you to choose any bright star listed in the NexStar hand control to assist in accurately aligning your telescope's mount with the North Celestial Pole. Using the telescope's Sync function, the mount is able to point and center a bright star with a high degree of accuracy. Once centered, the mount will point the telescope to the exact position that the star should be if the mount were precisely polar aligned. By simply adjusting the mounts altitude and azimuth controls to re-center the star in the center of the eyepiece, you are actually moving the mounts polar axis to the exact position of the North Celestial Pole.

 

FAQ

 

Can I use Polaris to polar align my telescope?
Since Polaris is very close to the NCP and not very bright, it is actually not a recommended star for the "All-Star" method. The advantages of being able to use stars other than Polaris are two fold:

Polaris is not always visible. So not only can you use a variety of other stars but they are also brighter and more prominent.
The star you choose will be farther away from the NCP thus allowing for greater accuracy when centering the star in your eyepiece.

 

Which stars are best to use for polar aligning?
For best results choose a bright alignment star that is near the Meridian, preferably close to the celestial equator. Try to avoid stars that are close to the west/east horizon or directly overhead because they can be more difficult to center using the mount's altitude and azimuth controls. Also stars too near the celestial pole are less accurate than those further away.

 

Will I lose my alignment after I polar align?
No, the mount will retain its alignment but some amount of accuracy may be compromised depending on how much the mount has been moved during polar alignment. Although the telscopes tracking may be very good, pointing accuracy may need to be improved, especially if you are trying to located small objects on a ccd chip.

 

What are the steps to polar align my telescope using "All-Star" polar alignment?

 

  • Align the telescope with the sky using the "Two-Star Alignment" method.
  • Select a suitable bright star from the Hand Control's database and slew the telescope to the star.
  • Press the Align button and select Polar Align => Align Mount from the list.
  • The telescope will then re-slew to the alignment star and ask you to center it in the eyepiece in order to "Sync" on the star.
  • The telescope will slew to the position that the star should be if it were accurately polar aligned.
  • Use the mounts altitude and azimuth adjustments to place the star in the center of the eyepiece and press the Align button.
  • Update the telescope's star alignment if necessary.

Supplier Sku:
11002
Shipping Restrictions:
Only ships in contiguous USA.

Dimensions & Specifications

Recommended Usage

Astrophotography

Features

Equatorial Mount , GoTo

Configuration

StarBright XLT Optical Coating

Brand

Celestron

Weight Complete

160 lbs.

Finderscope

9x50

Telescopes Series

Celestron CGEM Telescopes

Optical Design

EdgeHD Optics

Aperture

280mm

Focal Length

2800mm

Focal Ratio

f/10

Mount Design

German Equatorial

Eyepiece 1

23mm (122x)

Highest Useful Magnification

661x

Star Diagonal

2 inch

User Level

For the Expert

Object Database

40000 objects

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Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Celestron CGEM DX 11 Inch Edge HD Optics Telescope
 
5.0

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Quality lenses (3)

Cons

    Best Uses

    • Astronomy (3)
      • Was this a gift?:
      • No (3)

    Reviewed by 4 customers

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    Displaying reviews 1-4

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    5.0

    Outstanding Scope

    By Lars

    from Austin, Texas

    About Me Casual/ Recreational

    Verified Reviewer

    Pros

    • Accurate
    • Quality Lenses
    • Strong Construction

    Cons

      Best Uses

      • Astronomy

      Comments about Celestron CGEM DX 11 Inch Edge HD Optics Telescope:

      I chose this model over the 14 inch to make sure I could put it together on my own (I am 55). I Have had it about a year and have enjoyed looking at planets and the Moon. Some of my photos have been seen on TV.

      The image quality is nothing short of amazing! Celestron tech support has been excellent as well.

      I highly recommend this scope. My first scope was a small Meade ETX.

      Also, this scope is very durable, extremely well built.

      • Was this a gift?:
      • No
       
      5.0

      Wow, what a great setup!

      By Katsura

      from SAN ANTONIO,TX

      About Me Avid Adventurer

      Verified Buyer

      Pros

      • Quality Lenses

      Cons

      • Heavy
      • Wind Won't Bother It

      Best Uses

      • Astronomy

      Comments about Celestron CGEM DX 11 Inch Edge HD Optics Telescope:

      Celestron has really put together a good package. Although this scope is priced a little high, the goto mount and scope are top notch. The tripod is the beefy one from the CEM Pro and it is BIG! My wife said, "Now that is a real telescope! My daughters are looking forward to a clear night.

      • Was this a gift?:
      • No

      (0 of 1 customers found this review helpful)

       
      5.0

      Great telescope

      By Martin

      from MONTGOMERY,IL

      About Me Midrange Shopper

      Verified Buyer

      Pros

      • Long Lasting

      Cons

        Best Uses

          Comments about Celestron CGEM DX 11 Inch Edge HD Optics Telescope:

          When I received this telescope I was very exited to put it together and use it. Unfortunatly I found that primery mirror in OT was somehow lose, so I had to send the OT back to Celestron. Hayneedle customer service was great! They helped me to set the exchange for new OT and I hope that all will get right soon. The telescope itsself is very impresive piece and I cannot wait to use it in its full potential. Also,it's always pleasure to shop with Hayneedle and Telescopes.com.

          • Primary use:
          • Personal

          (0 of 2 customers found this review helpful)

           
          5.0

          this is one impressive scope!!!!

          By airgunner6

          from Southern Idaho

          About Me Avid Adventurer

          Verified Buyer

          Pros

          • Accurate
          • Easy to Use
          • Quality Lenses
          • Strong Construction
          • This is no light weight

          Cons

          • None at this time

          Best Uses

          • Astronomy

          Comments about Celestron CGEM DX 11 Inch Edge HD Optics Telescope:

          I am a beginner so this should be an adventure
          This seems to be a top piece of equipment, the service from hayneedle was A1. Hope to see first
          light before winter is over..

          THANKS
          airgunner6

          • Was this a gift?:
          • No

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