The Celestron CPC 925 XLT GPS is a Schmidt-Cassegrain telescope with diffraction-limited optics for high resolution observation. With a fully computerized dual fork arm Alt-Azimuth mount, the CPC 925 is the perfect instrument for visual astronomy and outreach. Celestron's StarBright XLT optical coatings on each surface give maximum light transmission across the visual spectrum between 400 - 750nm. Unlike standard aluminium mirror coatings which only reflect about 86-88% of light, StarBright XLT coated-mirrors reflect a staggering 95%. The entire system including corrector lens and magnesium fluoride/hafnium dioxide AR coatings give a total transmission of 83.5% averaged over the entire visual spectrum, a 16% improvement over the previous StarBright coatings. The CPC mount uses Celestron's proven NexStar computer control technology with an target database of over 40,000 objects. The re-designed drive base and mechanics offer quiet slewing, larger drive gears and quick release clutch for reliable and easy operation. Star alignment is fast thanks to the 3-star SkyAlign process and the included 9 x 50 finderscope makes centering objects pain-free. These mounts are heavy duty and stand up to frequent use even in harsh environments. We successfully employed them for nightly star parties in Uluru for many years without any problems. CPC925 mounted on a pier for nightly star tours near Uluru, NT | Adriano Massatani The mount features an auxiliary port for autoguider and GPS accessory (sold separately). Mount and motor controller firmware can be upgraded via the handset over the internet. An RS-232 cable is included for advanced control over the telescope using a computer. The CPC mount has Permanent PEC (periodic error correction) ensuring stable tracking. The included tripod's 2" stainless steel legs provide a rock solid platform. Specifications Optical tube assembly Optical design Schmidt-Cassegrain Aperture 235 mm (9.25") Focal length 2350 mm Focal ratio f/10 Resolving power 0.49 arc seconds Highest useful magnification 555 x Light gathering power 1127 times the human eye Central obstruction diameter 85 mm (36% of aperture diameter) Wavelength range 400 - 750 nm Optical coatings StarBright XLT Dovetail attachment None Threads 2"-24 UNC Tube length 559 mm Tube weight 26.3 kg with mount Tube diameter 271.78 mm SKU CE-11074-XLT Mount specifications Mount type Computerized Altitude-Azimuth Dual Fork Arm Height adjustment range 1397 mm - 1778 mm (55" - 70") Tripod leg diameter 50.8 mm (2") Stainless Steel Mount head weight 26.3 kg with optical tube Tripod weight 8.6 kg Slew speed 9 slew speeds - max speed 5°/second Tracking rates Sidereal, Solar and Lunar Tracking modes Alt-azimuth, EQ North and EQ South GPS Internal 16 channel Dovetail compatibility None Auxiliary ports 2 AUX Ports (Hand Control can use any of the AUX Ports) Autoguide port Yes USB port Yes, on hand controller Power requirement 12V DC 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 (EQ align requires wedge) 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 34.9 kg Items included Optical tube Mount and tripod Accessory tray Nexstar+ hand controller 50mm 9 x 50 finderscope with bracket 1.25" star diagonal 40mm 1.25" eyepiece Instruction manual
