Details
Features
General Features
- 11" diffraction limited Schmidt-Cassegrain telescope
- Celestron's premium StarBright XLT coatings
- Fully computerized dual fork arm Altazimuth mount
- 8x50 finderscope to help accurately find objects
- Newly designed heavy-duty tripod makes attaching the telescope so easy you can do it in the dark; also features sturdy 2" steel legs and accessory tray
- Ergonomic design - Comfortably lift and move the telescope from location to location
- Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
- Convenient remote hand control holder - Allows you to view information hands-free while using the scope
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
- 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
- Re-designed drive base and drive mechanics - Quiet operation; large drive gears, quick release clutch
- SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
- Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
- Permanent PEC
- Auxiliary port for additional accessories such as Autoguider, GPS accessory
- NexRemote telescope control software and RS-232 cable included for advanced control of your telescope via computer
Additional Information
| Optical Design | Schmidt-Cassegrain |
|---|---|
| Aperture (mm) | 280 mm (11 in) |
| Focal Length (mm) | 2800 mm (110 in) |
| Focal Ratio | 10 |
| Eyepiece 1 (mm) | 40 mm (1.57 in) |
| Magnification 1 | 70 x |
| Finderscope | 8x50 Finderscope with quick release bracket |
| Star Diagonal | 1.25 |
| Mount | Dual Fork Arm |
| Optical Tube | Aluminum |
| Accessory Tray | Leg Brace / Eyepiece holder |
| Tripod | Heavy Duty Steel Adjustable |
| Power Supply | Car battery adapter |
| Highest Useful Magnification | 661 x |
| Lowest Useful Magnification | 40 x |
| Limiting Stellar Magnitude | 14.7 |
| Resolution (Rayleigh) | 0.5 arc seconds |
| Resolution (Dawes) | 0.41 arc seconds |
| Photographic Resolution | 200 line/mm |
| Light Gathering Power | 1600 x |
| Angular Field of View (deg) | 0.6 ° |
| Linear Field of View (@1000 yds) | 32 ft (9.75 m) |
| Secondary Mirror Obstruction | 3.75 in (95 mm) |
| Secondary Mirror Obstruction by Diameter | 34 % |
| Secondary Mirror Obstruction by Area | 12 % |
| Optical Coatings | Starbright XLT Coating |
| Telescope Weight | 65 lbs (29 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 |
| Bearings | 9.8 azimuth bearing |
| 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 |
| 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 |
Related Products
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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
- How do I align the SCT's corrector plate and secondary?
- 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?
- 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 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 using a focal reducer and can't seem to focus my SLR camera on my Schmidt-Cassegrain telescope (SCT). What am I doing wrong?
- 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?
- Which screws are safe to remove for mounting an accessory finderscope on my Celestron Schmidt-Cassegrain telescope (SCT)?
- What are the pros and cons of adding aftermarket collimating screws to my Schmidt-Cassegrain telescope (SCT)?
- 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?
- My image shifts when I'm focusing my Schmidt-Cassegrain telescope (SCT) and after I get a great focus, the focus will change. What is happening?
- 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'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?
- I want to use the focal reducer/corrector with an aftermarket eyepiece holder. What is the best spacing, focal length, etc?
- Why am I getting "This mount does not support the PECTool" when using my CGE, CPC, CGEM and CGE Pro mounts?
- 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?
- My CPC mount is moving in the wrong direction when I use the direction arrows at slower slew rates. 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 cordwrap was turned on before I updated my alt-azimuth GOTO scope's hand control. Now it's off - what happened?
- 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?
- How much will the addition of a focal reducer increase my scope's field of view?
- 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.
- 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?
- 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 my Celestron GOTO Alt-Az scope on a wedge and the hand display shows a slew limit warning. What's wrong?
- 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?
- How do I remove the optics from the optical tube assembly (OTA) of my Schmidt-Cassegrain telescope (SCT)?
- Miscellaneous Specifications for the CPC Series
- How do I remove the optics from the optical tube assembly (OTA) of my Schmidt-Cassegrain telescope (SCT)?
- Miscellaneous specifications for the CPC Series
- The standard visual back on my Schmidt-Cassegrain telescope (SCT) has threads on the outside of the barrel. What are these threads for?
- How do I program my flash upgradeable hand control? What about motor control upgrades?
Downloads
Manuals
NexStar Communication Protocol v 1.2 (80.23 KB | PDF)- CPC Series Manual (2.77 MB | PDF)
Reference Materials
- Telescope Basics (English, French, German, Italian, Spanish) (481.61 KB | PDF)
- Celestrial Observing (English, French, German, Italian, Spanish) (381.85 KB | PDF)
- Astronomy Basics (English, French, German, Italian, Spanish) (2.26 MB | PDF)
- Telescope Maintenance (English, French, German, Italian, Spanish) (640.68 KB | PDF)
Software
PEC Tool v.1.0.18 (3.35 MB | ZIP)- NexRemote v. 1.7.18 (30 day trial) (21.55 MB | ZIP)
- Motor Control Firmware Updates v.2.2.5 (3.57 MB | ZIP)
- Hand Control Firmware Updates v.1.1.14 (3.75 MB | ZIP)
