Details
The popular 6" Newtonian in the Advanced series is now available on our heavy-duty CG-5 computerized mount. The C6-NGT Newtonian scope uses diffraction-limited parabolic primary mirror for razor sharp star images across a wide field of view. The optics of these heavyduty telescopes are manufactured to Celestron's uncompromising standards with star images that are classic textbook Airy disks.
Mounted on the Advanced GT Series computerized mount, this telescope has some high performance software and hardware features. Operated by our proven NexStar® computer control technology, the telescope has a 40,000+ object database with 100 user-definable objects and expanded information on over 200 objects. 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.
Using the RS-232 communication port on the hand control, you can control the telescope via a personal computer, and our new flash upgradeable hand control allow you to update your telescope's operating software via the Internet. An Autoguider port is also included for astrophotography. No matter at what level you are starting out, this precision instrument will satisfy your needs both visually and photographically.
CG-5 Mount - Precision engineered for stability
Our new German Equatorial mount has precision worm gears on both axes for extremely smooth stability. The key element that makes this system the most stable in its class is the NEW heavy-duty tripod with larger and more substantial legs that offer excellent damping characteristics for more stable views. The CG-5 also has a convenient latitude scale for easier alignment and an optional polar finder scope for the ultimate in precision alignments.
Additional Information
| Optical Design | Newtonian Reflector |
|---|---|
| Aperture (mm) | 150 mm (5.91 in) |
| Focal Length (mm) | 750 mm (30 in) |
| Focal Ratio | 5 |
| Eyepiece 1 (mm) | 20 mm (0.79 in) |
| Magnification 1 | 38 x |
| Finderscope | 6x30 |
| Mount | CG-5 Equatorial |
| Accessory Tray | Yes |
| Tripod | 2 inch Stainless Steel |
| Power Supply | Car Battery Adapter |
| Highest Useful Magnification | 354 x |
| Lowest Useful Magnification | 21 x |
| Limiting Stellar Magnitude | 13.4 |
| Resolution (Rayleigh) | 0.93 arc seconds |
| Resolution (Dawes) | 0.77 arc seconds |
| Photographic Resolution | 400 line/mm |
| Light Gathering Power (Compared to human eye) | 459 x |
| Angular Field of View (deg) | 1.3 ° |
| Linear Field of View (@1000 yds) | 68 ft (21 m) |
| Secondary Mirror Obstruction | 1.75 in (44 mm) |
| Secondary Mirror Obstruction by Diameter | 30 % |
| Secondary Mirror Obstruction by Area | 8.78 % |
| Optical Coatings | Aluminum |
| Optical Tube Length | 27 in (686 mm) |
| Telescope Weight | 54 lbs (24 kg) |
| Counterweights | 1-7 lbs, 1-4 lbs |
| Motor Drive | DC Servo motors with encoders, both axes |
| Slew Speeds | 3°/sec |
| Tracking Rates | Sidereal, Solar and Lunar |
| Tracking Modes | EQ North and EQ South |
| Alignment Procedures | AutoAlign, 2-Star Alignment, Quick Align |
| Software Precision | 24 bit, 0.08 arcsec calculation |
| Motor Ports | Aux Port, Autoguide Ports |
| Communication Ports | RS-232 communication port on hand control |
| Computer Hand Control | Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons |
| Database | 40,000 objects, 100 user defined programmable objects. Enhanced information on over 200 objects |
Knowledge Base
- What size of scope is best for different kinds of objects?
- Aperture
- Focal length
- Contrast
- Light gathering power and magnitude limit
- Telescope-Astronomy Resources on the Web
- What does magnitude mean?
- Exit pupil
- What are diffraction-limited optics?
- What is the focal ratio? How is it related to the f-stop?
- Near focus
- Field of view
- Magnification or power
- Resolution - resolving power
- Optical design aberrations
- Why don't the images I see through my telescope look the same as photos I see taken with the same type of telescope?
- How far can I see with a telescope?
- How do you determine a telescope's magnification?
- Rough polar alignment
- Why do I need polar alignment?
- Accurate polar alignment
- Precise polar alignment
- Polar alignment for the southern hemisphere
- I upgraded-reflashed my hand control and now I'm not getting the control functions for my mount, but for another mount. What happened? How can this be fixed?
- I upgraded-reflashed my Advanced GT hand control and now I'm not getting the control functions for my mount, but for another mount. What happened? How can this be fixed?
- I hibernated my GOTO mount. When I powered back up and woke up the scope, it did not point as accurately as before. What gives?
- I'm doing photography with an eyepiece, using my camera with and without a lens. What are the f-numbers of my setup for the afocal and eyepiece projection methods?
- Can my NexStar hand control be repaired instead of replaced?
- What is back focus? What problems does it cause for visual and photographic use of my scope? What are related focus issues?
- I need to box up my scope and ship it. What's the best way to pack it?
- Why won't my image erecting eyepiece or image erecting diagonal always give right side up images with my scope?
- What is field rotation? How does it affect my scope's viewing and imaging?
- Why do I need to guide my telescope for photography? Don't accurate alignment and firmware functions like periodic error correction (PEC) take care of it all?
- My GPS-equipped scope is showing the wrong time information. How do I correct this?
- What is a star party? Where do I find information on star parties in and around my area?
- I "accidentally" took apart my eyepiece, removing the lens that goes closest to my eye. Help! How do I put it back together?
- I am using a SkyScout Connect with my Celestron GOTO telescope. Do I still need to align my scope?
- I am using a GPS with my Celestron GOTO telescope. Do I still need to bother with SkyAlign?
- I'm looking at my Celestron scope and it has a serial number on it. Can you tell me the model, type and year it was made?
- How do I use the setting circles on my Celestron German equatorial mount?
- How do I use the RA and Dec vernier scales on my Advanced GT (AS-GT) mount's setting circles?
- What are the specifications for an AC adapter that will work with Celestron's
- What is LST? Where do I find it in my GOTO scope's menu?
- When I use IDENTIFY with my GOTO scope, what is it showing me?
- I'm upgrading my Celestron Advanced GT or CGE German equatorial mount (GEM) to firmware version GEM 4.15 or later. How does the new firmware's All-Star polar alignment work with my mount?
- MY Advanced GT mount is moving in the wrong direction when I use the direction arrows. What is wrong? How can I change the direction of the direction buttons?
- Is there any way to run Celestron's window-based drivers and software on Macs?
- My images with a CCD camera are showing black or white streaks on the brighter stars. They are all bloomed out. What's wrong with my scope?
- Where can I download the unified ASCOM drivers for Celestron?
- What is the operating temperature range for Celestron's telescopes?
- My NexStar hand control displays "Offset Too Large" when I'm trying to change my scope's alignment. What does this mean? How to I fix the issue?
- My Celestron software won't run on my Windows 7 computer. Help!
- I need information on the RS-232 (serial) commands for NexStar controlled telescopes.
- I have two scopes I want to use side-by-side or tandem with my Celestron CGE - CGE Pro - CGEM - Advanced GT mount. Can I do that?
- Where are the collimation screws for my Advanced GT Newtonian scope?
- What are the instructions for getting my CN-16 or SkySync GPS working with my Celestron GOTO mount?
- I have a Celestron GOTO scope, a Mac and an autoguider. I want to autoguide with the scope. Is your autoguider port Mac-compatible?
- How do you stop a GOTO slew in progress? Is there a better way than turning off power or pulling the power plug?
- The autoguiding port diagram in my manual is different than the diagram for the NexGuide connection. Are these differences important?
- How do I set RA limits for my Advanced GT Mount?
- How do I collimate my Advanced Series reflecting telescope - aligning the mirrors in daylight?
- How do I collimate my Advanced Series reflecting telescope - using the stars?
- What's a quick summary of All-Star polar alignment with CGEM - CGEM DX, CGE, CGE Pro and Advanced GT Series mounts?
- How can I make my own collimating tool to use with my Newtonian reflector?
- Can I use PEC with the Advanced GT Mount?
- How do I program my flash upgradeable hand control? What about motor control upgrades?
- The hand control of my new scope shows the message “Bootloader invalid package 0080†or “Bootloader invalid package 0002â€. How can I fix this and make the mount work?
- What is the screw size of the adjusting screws for the polar finderscope #94224 for the Advanced GT and CGEM – CGEM DX mount?
- What is the wiring diagram for the Advanced GT’s dec cable?
- I’m experiencing motion in RA east after slews with my Celestron German GOTO mount. Is this backlash and how do I correct it?
- What advantages does the Celestron zoom eyepiece #93230 have for SLR (DSLR) photography?
Downloads
Manuals
NexStar Communication Protocol v 1.2 (80.23 KB | PDF)
Addendum to the Advanced GT mount manual (firmware v.4.10) (356.01 KB | PDF)
Reference Materials
Telescope Basics (English, French, German, Italian, Spanish) (481.61 KB | PDF)
Telescope Maintenance (English, French, German, Italian, Spanish) (640.68 KB | PDF)
Celestial Observing (English, French, German, Italian, Spanish) (381.85 KB | PDF)
Astronomy Basics (English, French, German, Italian, Spanish) (2.26 MB | PDF)
Software
Motor Control Firmware Updates v.2.2.5 (3.57 MB | ZIP)
NexRemote v. 1.7.22 (ZIP)
Hand Control Firmware Updates v.1.1.14 (3.75 MB | ZIP)
Celestron Firmware Manager (CFM) v.1.0.2100 (ZIP)

CELESTRON TWO YEAR LIMITED WARRANTY
A. Celestron warrants your telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship. As a condition to the obligation of Celestron to repair or replace such product, the product must be returned to Celestron together with proof-of-purchase satisfactory to Celestron.
B. The Proper Return Authorization Number must be obtained from Celestron in advance of return. Call Celestron at (310) 328-9560 to receive the number to be displayed on the outside of your shipping container.
All returns must be accompanied by a written statement setting forth the name, address, and daytime telephone number of the owner, together with a brief description of any claimed defects. Parts or product for which replacement is made shall become the property of Celestron.
The customer shall be responsible for all costs of transportation and insurance, both to and from the factory of Celestron, and shall be required to prepay such costs.
Celestron shall use reasonable efforts to repair or replace any telescope covered by this warranty within thirty days of receipt. In the event repair or replacement shall require more than thirty days, Celestron shall notify the customer accordingly. Celestron reserves the right to replace any product which has been discontinued from its product line with a new product of comparable value and function.
This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is not covered by this warranty.
CELESTRON DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WHETHER OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH HEREIN. THE SOLE OBLIGATION OF CELESTRON UNDER THIS LIMITED WARRANTY SHALL BE TO REPAIR OR REPLACE THE COVERED PRODUCT, IN ACCORDANCE WITH THE TERMS SET FORTH HEREIN. CELESTRON EXPRESSLY DISCLAIMS ANY LOST PROFITS, GENERAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY, OR ARISING OUT OF THE USE OR INABILITY TO USE ANY CELESTRON PRODUCT. ANY WARRANTIES WHICH ARE IMPLIED AND WHICH CANNOT BE DISCLAIMED SHALL BE LIMITED IN DURATION TO A TERM OF TWO YEARS FROM THE DATE OF ORIGINAL RETAIL PURCHASE.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Celestron reserves the right to modify or discontinue, without prior notice to you, any model or style telescope.
If warranty problems arise, or if you need assistance in using your telescope contact:
Celestron
Customer Service Department
2835 Columbia Street
Torrance, CA 90503
Tel. (310) 328-9560
Fax. (310) 212-5835
Monday-Friday 8AM-4PM PST
NOTE: This warranty is valid to U.S.A. and Canadian customers who have purchased this product from an authorized Celestron dealer in the U.S.A. or Canada. Warranty outside the U.S.A. and Canada is valid only to customers who purchased from a Celestron's International Distributor or Authorized Celestron Dealer in the specific country. Please contact them for any warranty service.
Where To Buy

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