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Celestron CPC 1100 GPS (XLT) Telescope

The Celestron CPC 1100 GPS is the largest and most popular of Celestron's top-of-the-line fork-mounted Schmidt-Cassegrain telescopes. With eleven inches of aperture, it is one of the largest fork mounted telescopes that can be set up by one person. If you are looking for a large aperture go-to telescope without the hassle of polar alignment, the CPC 1100 may be for you.

Tomorrow’s next generation computerized GPS SCT’s are here now!

New alignment technology, advanced engineering, and bold new design at a lower price that is out of this world!

Celestron’s new CPC Series Schmidt-Cassegrain telescopes with revolutionary SkyAlign Alignment Technology redefines everything that amateur astronomers are looking for — quick and simple alignment, GPS, unsurpassed optical quality, ease of set-up and use, ergonomics, enhanced computerization and, most important, affordability. The CPC 1100 GPS is the largest and most popular of Celestron's top-of-the-line fork-mounted Schmidt-Cassegrain telescopes. With eleven inches of aperture, it is one of the largest fork mounted telescopes that can be set up by one person.

Item #ProductStock StatusPriceShipping
11075-XLTCelestron CPC 1100 GPS (XLT)
Normally Ships in 7-10 Days
$2,799.00Get Shipping Quote
Celestron CPC 1100 GPS Schmidt-Cassegrain telescope

CPC 1100 Features:

  • Features Starbright® XLT High Performance Optical System — Celestron’s finest optical coatings provide sharp, bright clear views.
  • SkyAlign Alignment Technology — Fast, easy alignment. Simply choose three bright stars. The telescope does the rest.
  • Convenient remote hand control holder — Allows you to view information hands-free while using the scope.
  • 40,000+ object database.
  • Ergonomic design — Comfortably lift and move the telescope from location to location.
  • Re-designed drive base and drive mechanics — Quiet operation; large drive gears, quick release clutch; Auxiliary ports for AutoGuider, PC; easily mounts to tripod. NexRemote™- compatible.
  • Permanent PEC
  • Newly - designed heavy-duty tripod.

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Optical Specifications: Celestron CPC 1100 GPS (XLT) Telescope
Type Schmidt-Cassegrain
Aperture (mm) 280 mm
Aperture (in.) 11 inches
Focal Length 2800 mm
Focal Ratio f/10
Magnification (w/supplied eyepiece) 70X
Accessories and Features
Included Eyepiece(s) 40mm Plossl
Finder 8x50 Optical
Go-To System Celestron NexStar system with 40,000+ object library. Flash upgradeable via the Internet.
Star Diagonal 1.25-inch prism type
Accepts 2" Eyepieces <p><b>Telescope Eyepiece Formats</b><br /> Virtually all telescope eyepieces available today conform to one of two barrel diameter standards: 1.25 or 2 inches. Most amateur astronomers will be perfectly content with 1.25" eyepieces. Two-inch eyepieces have only one inherent advantage. That advantage is a potentially larger field of view, but not every telescope can take advantage of that potential. </p> <p>A Telescope and eyepiece work together to collect parallel light rays over a large area, compress those light rays down into a smaller area, and the re-orient them so that they are nearly parallel once again. Essentially light arriving at a telescope with any given aperture is compressed into a smaller aperture or exit pupil. The ratio of the telescope aperture to eyepiece exit pupil determines the magnification.</p> <p>There are cases at very low magnifications where the eyepiece barrel diameter becomes the constraint on maximum field of view. The eyepiece barrel itself actually blocks some of the available light that the telescope is collecting, thus limiting the field of view. Two-inch eyepieces overcome this constrain by allowing a larger light cone to enter the eyepiece. We must conclude this discussion by restating that 2" eyepieces have no inherent advantage over 1.25" eyepieces other than the potential for a larger field of view when used with a telescope capable of benefiting from that advantage. </p> No
Adaptable for 2" Eyepieces <p><b>Two-inch Eyepiece Upgrade</b><br /> Some telescopes that are factory configured for 1.25" eyepieces can be upgraded to accommodate 2" eyepieces. Other telescopes are designed to handle only 1.25" eyepieces and cannot be upgraded due to their focuser size or other constraints. </p> <p>Sometimes this upgrade is possible but not recommended. This could be due to clearance issues caused by the addition of a larger 2" star diagonal,which in some cases will bottom out on the base of a fork mounted go-to telescope. This is potentially damaging the drive mechanism. In other cases the light cone exiting the telescope may not be large enough to derive any benefit from a 2" eyepiece.</p> Yes
Physical Parameters
Telescope Weight 65 Pounds
Tripod Weight 27 Pounds
Weight, Fully Assembled 92 Pounds
Eyepiece Calculator
Enter your eyepiece's specifications:
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Exit Pupil: <p>Exit pupil represents the diameter of the column of light exiting the eyepiece. Magnification is simply the ratio of telescope aperture to exit pupil. Fox example, using a telescope with 100mm aperture and an exit pupil of 2mm yields a magnification of 50X.</p> <p>There are both upper and lower limits to the useful range of exit pupils. The typical human eye pupil dilates to a maximum of 7mm when fully dark adapted. This figure decreases with age. Using an exit pupil that is larger than this upper limit simply spills the light onto an area of the eye not capable of receiving data. At the opposite end of the range, a smaller exit pupil means less area on the eye is collecting data. Images brightness decreases with decreasing exit pupil. Deep space objects grow dimmer rapidly as the exit pupil falls below 1 mm. The planets also start to become noticeably dimmer when the exit pupil falls much below 0.5 mm.</p> <p>Our eyepiece calculator provides warnings and error messages based upon the value of the exit pupil. These are intended to be guidelines as opposed to hard rules. There is no harm in violating these gidelines, but your enjoyment of the telescope may be diminished if you do. </p>
 
 
Recommended Accessories: Celestron CPC 1100 GPS (XLT) Telescope
Item #NameDescriptionPrice 
CASECPC11JMI Case for Celestron CPC 925 / CPC 1100Hard carrying case for CPC1100 optical tube assembly. Includes wheels for easily moving the telescope.$539.00
TPWUMED /TPWLWUPGMedium Size Universal Wheeley Bars w/wheel upgradeWheeley bars allow the telescope to be stored in a fully assembled state, and rolled into position for observing or storage.$299.00
18777Celestron 17 AH Power TankThe Celestron 17 amp-hour Power Tank provides field power for your telescope, dew heaters, and other 12 volt DC accessories.$109.95
DDHCDigital Dew Heater ControllerA four-channel dew heater controller, providing individual power settings for up to four heater accessories.$109.00
AZ 812Flexi-Heat for 11" Schmidt-CassegrainA combination dew shield and dew heater, prevents the formation of dew on the telescope corrector plate. Requires a dew heater controller with 12 Volt DC power source.$125.00