What makes the CPC 925 GPS great for astrophotography?
Longer focal length primary and lower magnification secondary - Contributes to a flatter focal plane with less coma and off-axis astigmatism.
Baffle design - Optimized for astrophotography. Minimizes vignetting at the edge of the field of view. This reduces light drop off at the corners of your film plane.
Hand Figured Optics - Just like all other Celestron Schmidt-Cassegrain telescopes, the CPC 925 GPS optics are individually matched and hand figured to ensure the highest optical quality in every telescope.
Focus mechanism - At the heart of Celestron's Schmidt-Cassegrain focus mechanism are pre-loaded ball bearings, not bushings, minimizing focus shift.
Heavy-duty die cast aluminum fork arms - For maximum rigidity.
Unique roller bearing design bearing and shaft - The telescope base rotates around a wide 9.5 track for maximum stability; especially important when equatorially mounted for imaging.
Autoguider port - For interfacing an autoguider or a drive corrector for long exposure imaging or astrophotography.
StarBright coatings - High quality multi-layer coatings maximize transmission of light to the film plane.
Celestron's new CPC Series with revolutionary SkyAlign Alignment
Technology re-defines 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 Series' internal GPS receiver automatically downloads the date and time from orbiting satellites and pinpoints its exact location on Earth. This eliminates the need for you to manually enter the date, time, longitude and latitude.
Celestron's Revolutionary SkyAlign
Once the CPC's internal GPS has established the telescope's position, aligning the telescope is as easy as 1-2-3! Simply locate and use hand control to manually point (slew) the telescope to three bright celestial objects. You do not need to know the names of the stars - you may even pick the moon or bright planets! Celestron's NexStar® software technology will model the night sky to determine the position of every star, planet and celestial object above the horizon. Once aligned, the remote hand control allows direct access to each of the celestial catalogs in its user-friendly database.
Celestial Object Database
The CPC database contains over 40,000 celestial objects including Messier objects, the Caldwell Catalog, as well as NGC Galaxies, nebulae and planets. User-definable filter limits make navigating through this expansive database quicker and easier. Filter Limits let you filter out objects that are outside of your local horizon (ie, if trees or mountains were in the way).
Identify feature tells you what you're looking at, but it can also be a very fun way to tour around the sky. Just point the telescope up somewhere and ask it to identify Messier objects (for instance) and it will show you the 5 nearest Messier objects to your position and let you GOTO them. You can keep doing this for different parts of the sky or for different object types -- it is a lot of fun.
There's also "Solar Sys Align" that lets you align on the sun or moon for daytime observing -- it is easy to use this to see planets or bright stars in the day.
OPTICAL DESIGN: Schmidt-Cassegrain
APERTURE: 235 mm
FOCAL LENGTH: 2350 mm
FOCAL RATIO: 10
FINDERSCOPE: 50mm Finderscope & quick release bracket
MOUNT: Dual Fork Arm
OPTICAL TUBE: Aluminum
EYEPIECE 1: 40 mm
MAGNIFICATION 1: 58.75 x
STAR DIAGONAL: 1.25"
ACCESSORY TRAY: Leg Brace / Eyepiece holder
TRIPOD: Heavy Duty Steel Adjustable
POWER SUPPLY: Car battery adapter
HIGHEST USEFUL MAGNIFICATION: 555 x
LOWEST USEFUL MAGNIFICATION: 3 x
LIMITING STELLAR MAGNITUDE: 14.4
RESOLUTION: 0.59 arc seconds
RESOLVING POWER: 0.49 arc seconds
PHOTOGRAPHIC RESOLUTION: 200 line/mm
LIGHT GATHERING POWER: 1127 x
OPTICAL COATINGS: Starbright XLT Coating
SECONDARY MIRROR OBSTRUCTION: 85.09 mm
TELESCOPE WEIGHT: 58 lb (26.31 kg)
TRIPOD AND MOUNT WEIGHT: 19 lb (8.62 kg)
MOTOR DRIVE: DC Servo motors with encoders, both axes
MOTOR RESOLUTION: 0.1406 arc seconds
COMPUTER HAND CONTROL: Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
TRACKING RATES: Sidereal, Solar and Lunar
TRACKING MODES: Altazimuth, EQ North & 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: 24bit, 0.08 calculations
PERIODIC ERROR CORRECTION: Permanently Programmable
FORK ARM: Dual fork arm, cast Aluminum w/ detachable HC cradle
GEAR: 5.625 hard anodized gear in both axes, 180 tooth
BEARINGS: 9.8 azimuth bearing
COMMUNICATION PORTS: RS-232 communication port on hand control
MOTOR PORTS: Aux Port, Autoguide Ports
DATABASE: 40,000+ objects, 400 user defined programmable objects. Enhanced info on over 200 objects
POWER REQUIREMENTS: 12VDC 1.5A
GPS: Internal 16 channel
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