Description
Description
The Celestron CPC 1100 GPS (XLT) Computerized Cassegrain Telescope - 280 mm provides you with an optical tube and mount for near- and deep-space observation and astrophotography. Optically, it features a Schmidt-Cassegrain light path consisting of a corrector plate, a spherical primary mirror, and a secondary mirror. Complementing the optical system is the proprietary StarBright XLT optical coating system that improves light transmission and reflectivity across the entire visual spectrum. The combination of optical components and the StarBright XLT system produces bright and clear high-resolution images with true color rendition across the entire field of view with minimal distortion, aberrations, or off-axis comas.
Its motorized dual-tine fork mount has dual-axis servo motors that provide precision movements with minimal vibration and high resolution. It also has an integrated 16-channel GPS receiver that sends information to the hand controller and requires limited input from the user. This version of the telescope is offered here with just the optical tube assembly and mount, you will need to supply a heavy-duty tripod or permanent pier to use it properly.
The brain of the entire system is the NexStar+ computer controller. Equipped with a database of over 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog. It can also be programmed with up to 100 custom user-defined objects and have filters added for custom object lists. Its intuitive menu-driven user interface provides the power to observe the heavens with nine slew speeds and three tracking rates, plus anti-backlash compensation and Permanent Periodic Error Correction (PPEC) for smoother movements in the motors and improved tracking over time. Features such as guided tours, extended information on 200 popular objects, and multiple alignment options make the NexStar+ controller easy to use for both new users and experienced stargazers.
Features
Schmidt-Cassegrain optical design
11 inch aperture
StarBright XLT optical coating system
Internal focusing mechanism
Multi-layer mirror coatings
2800mm focal length
NexStar+ hand controller
Motorized Alt-Az fork mount
Specifications
Optical Design Schmidt-Cassegrain
Aperture 279.4mm (11")
Focal Length 2800mm (110")
Focal Ratio f/10
Focal Length of Eyepiece 1 40mm (1.57")
Magnification of Eyepiece 1 70x
Finderscope 9x50 Finderscope with quick release bracket
Star Diagonal 1.25" Star Diagonal
Optical Tube Aluminum
Highest Useful Magnification 660x
Lowest Useful Magnification 40x
Limiting Stellar Magnitude 14.7
Resolution (Rayleigh) 0.5 arc seconds
Resolution (Dawes) 0.42 arc seconds
Light Gathering Power (Compared to human eye) 1593x
Secondary Mirror Obstruction 95mm (3.75")
Secondary Mirror Obstruction by Diameter 34%
Secondary Mirror Obstruction by Area 12%
Optical Coatings Starbright XLT
Optical Tube Length 610mm (24")
Optical Tube Diameter 312.42mm (12.3")
Optical Tube Weight 65 lbs (29.5 kg) with mount
Dovetail None
Mount Type Computerized Altitude-Azimuth Dual Fork Arm
Height adjustment range (includes mount and tripod) 1397mm - 1778mm (55" - 70")
Tripod leg diameter 50.8mm (2") Stainless Steel
Mount Head Weight 65 lbs (29.5 kg) with optical tube
Accessory Tray Yes
Tripod Weight 19 lbs (8.6 kg)
Slew Speed 9 slew speeds - max speed 5/second
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes Altazimuth, EQ North and EQ South
GPS Internal 16 channel
Dovetail Compatibility None
Number of Auxiliary Ports 2 AUX Ports (Hand Control can use any of the AUX Ports)
Autoguide Port Yes
USB Port Yes, on hand control
Power Requirements 12 VDC-1.5A (Tip positive)
Motor Drive DC servo motors
Alignment Procedures Sky Align, Auto Two-Star Align, Two-Star Align, Solar System Align, EQ North Align and EQ South Align
Periodic Error Correction Yes
Computerized Hand Control 2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 Port for PC connection
NexStar+ Database 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Software Celestron Starry Night Special Edition Software and SkyPortal App
Total Telescope Kit Weight 84 lbs (38.1 kg)