Details
Celebrating 50 years of optical innovation, Celestron proudly offers the Limited Edition 50th Anniversary CPC 800 GPS. This elegant telescope features a hi-tech carbon fiber tube, striking 50th Anniversary graphics and a limited edition eyepiece kit.
Only 300 50th Anniversary Edition CPCs are being made available worldwide, making this a must have collector’s item. Get yours today!
![]() | Includes 50th Anniversary Edition Eyepiece Kit
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Additional Information
| Optical Design | Schmidt-Cassegrain |
|---|---|
| Aperture (mm) | 203.2 mm (8 in) |
| Focal Length (mm) | 2032 mm (80 in) |
| Focal Ratio | 10 |
| Eyepiece 1 (mm) | 32 mm (1.26 in) |
| Magnification 1 | 64 x |
| Eyepiece 2 (mm) | 4 mm (0.16 in) |
| Magnification 2 | 508 x |
| Finderscope | 9x50 Finderscope with quick release bracket |
| Star Diagonal | 1.25 |
| Mount | Dual Fork Arm |
| Optical Tube | Carbon Fiber |
| Accessory Tray | Leg Brace / Eyepiece holder |
| Tripod | Heavy Duty Steel Adjustable |
| Power Supply | Car battery adapter |
| Highest Useful Magnification | 480 x |
| Lowest Useful Magnification | 29 x |
| Limiting Stellar Magnitude | 14 |
| Resolution (Rayleigh) | 0.69 arc seconds |
| Resolution (Dawes) | 0.57 arc seconds |
| Photographic Resolution | 200 line/mm |
| Light Gathering Power (Compared to human eye) | 843 x |
| Angular Field of View (deg) | 0.8 ° |
| Linear Field of View (@1000 yds) | 42 ft (13 m) |
| Secondary Mirror Obstruction | 2.5 in (64 mm) |
| Secondary Mirror Obstruction by Diameter | 31 % |
| Secondary Mirror Obstruction by Area | 9.77 % |
| Optical Coatings | Starbright XLT Coating |
| Telescope Weight | 42 lbs (19 kg) |
| Tripod and Mount Weight | 27 lbs (12 kg) |
| Motor Drive | DC Servo motors with encoders, both axes |
| Motor Resolution | 0.1406 |
| Tracking Rates | Sidereal, Solar and Lunar |
| Tracking Modes | Altazimuth, EQ North and EQ South |
| Alignment Procedures | SkyAlign, Auto Two-Star Alignment, Two-star Align, SolarSystem Align, EQ North Align, EQ South Align, One-Star Align |
| Software Precision | 24 bit, 0.08 calculations |
| Periodic Error Correction | Permanently Programmable |
| Fork Arm | Dual fork arm, cast Aluminum with detachable HC cradle |
| Gear | 5.625 hard anodized gear in both axes, 180 tooth, brass worm |
| Bearings | 9.8 azimuth bearing |
| Motor Ports | Aux Port, Autoguide Ports |
| Communication Ports | RS-232 communication port on hand control |
| Computer Hand Control | Flash upgradeable, 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 |
| Power Requirements | 12 VDC 1.5A |
| Power Requirements - Idle Current | 340 mA |
| Power Requirements - Slew one axis | 640 mA |
| Power Requirements - Slew both axes | 900 mA |
| Cord Management | Cord Wrap Software |
| GPS | Internal 16 channel |
Knowledge Base
- How do I mount my finderscope bracket on the CPC 800/925/1100 optical tube assembly (OTA)?
- Do I need to use the PECTool program to use PEC with my CPC?
- I need to remove my CPC's optical tube from the fork. How is this done?
- The alignment pin in my new Fastar-equipped SCT is at the 11 o'clock position. Aren't they supposed to be at the 3 o'clock position as viewed from in front of the telescope?
- How do I use a third party periodic error correction (PEC) program like PEMPro with my Celestron mount?
- I want to autoguide with my Alt-Azimuth mount for long-exposure astrophotography. Will this work?
- 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 collimate my CPC Schmidt-Cassegrain telescope (SCT)?
- How do I properly store my CPC?
- How do I take apart my CPC mount's base?
- What is the size of the threading holding the visual back to my Schmidt-Cassegrain telescope? Is it the same for all Celestron SCTs?
- How do I wedge align my scope using All-star polar alignment?
- Miscellaneous Specifications for the CPC Series
- Can I control my Celestron GOTO mount with programs like Maxim DL?
- 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?
- I’m experiencing motion to the east after slews with my Celestron Alt-Az GOTO mount. Is this backlash and how do I correct it?
Downloads
Manuals
CPC Series Manual (2.77 MB | PDF)
Product Info Sheets
Anniversary Edition CPC 800 GPS Info Sheet (830.83 KB | PDF)
Reference Materials
Astronomy Basics (English, French, German, Italian, Spanish) (2.26 MB | PDF)
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)
Software
Motor Control Firmware Updates v.2.2.5 (3.57 MB | ZIP)
Hand Control Firmware Updates v.1.1.14 (3.75 MB | ZIP)
NexRemote v. 1.7.22 (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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