Celestron CPC 800 GPS (XLT) Computerized Telescope

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Your Price: CAD3,509.00

Retail Price:CAD3,725.35

Your Savings:CAD216.35(6%)

Part Number: 11073-XLT

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Product Highlights

8" (203mm) Schmidt-Cassegrain OTA
2032mm Focal Length, f/10 Focal Ratio
StarBright XLT Optical Coating System
Dual-Tine Motorized Alt-Az Fork Mount
Integrated 16-Channel GPS Receiver
NexStar Hand Controller
40,000+ Object Database with Tours
Backlash Compensation and Permanent PEC
40mm Eyepiece and 90° Star Diagonal
2" Stainless Steel Tripod with Tray

Combining power and ease of use, the Celestron CPC 800 GPS XLT 8" f/10 Schmidt-Cassegrain GoTo Telescope provides users with a complete rig for near- and deep-space observation and astrophotography. Optically, it features a Schmidt-Cassegrain optical system 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.

The optical tube is outfitted with a standard 1.25" visual back to make it easier to find eyepieces, accessories, and imaging gear. For visual observations, a 1.25" star diagonal is included along with a 40mm Plössl eyepiece that yields 51x magnification. The motorized dual-tine fork mount has dual-axis servo motors that provide precision movements and an integrated 16-channel GPS receiver that sends information to the hand controller and requires limited input from the user. The heavy-duty stainless steel tripod helps reduce vibrations to ensure clear resolution during observation or imaging sessions.

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 99 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 and invaluable to new users and experienced stargazers.

Optical Tube

8" (203.2mm) aperture
f/10 focal ratio
2032mm effective focal length
Schmidt-Cassegrain optical design
Fine-annealed Pyrex glass reduces internal light loss to improve color, clarity, and sharpness
StarBright XLT optical coatings
Internal focusing mechanism
Resolution: 0.69 arcsec (Rayleigh); 0.57 arcsec (Dawes)
Secondary mirror obstruction: 2.5" (64mm); 31% by diameter; 9.77% by area

StarBright XLT System

Maximizes light transmission through optical path
Improves color rendition, contrast, sharpness, resolution, and brightness
Broadband system provides flat wavelength transmission across the entire visual spectrum
Multi-layer mirror coatings with layers of aluminum, SiO2 (quartz), and TiO2 (titanium dioxide)
Multi-layer anti-reflective corrector plate coatings with layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide); hafnium has a wider band-pass than the commonly used titanium
High-transmission water white glass corrector plate limits light loss due to internal absorption

NexStar Hand Controller

40,000+ object database
99 user-defined programmable celestial or terrestrial objects
Enhanced information on over 200 objects
Nine slew speeds: 3°/sec, 2°/sec, 0.5°/sec, 64x, 16x, 8x, 4x, 1x, 0.5x
Three tracking rates: Sidereal, Solar, Lunar
Tracking modes: Alt-Azimuth, Equatorial North, Equatorial South
Multiple alignment procedures: Sky Align, Auto Two-Star, Two-Star, Solar System, EQ North, and EQ South
Tour Mode: System seeks out the best objects for the date and time and automatically slews to them
Constellation Tour: Takes the user on a tour of the best objects within a specific constellation
Identify Mode: Use to identify an unknown object in the field of view or to find other celestial objects that are close to where the user is viewing
Anti-backlash compensation: Trains out the intrinsic play between gears for more precise slewing and tracking
Permanent Periodic Error Correction (PPEC): System learns its internal tracking errors and improves over time for more precise tracking, requiring fewer corrections
Built-in instructions guide users through the alignment procedures
2-line, 16-character LCD display with 19-button fiber-optic backlit LED keypad
RS-232 comm port
Flash updatable via Internet

Database Details:
Complete NGC catalog: 7840 objects
Complete Messier catalog: 110 objects
Complete IC catalog: 5386 objects
Complete Caldwell catalog: 109 objects
2712 Abell galaxies
Solar system objects including the Sun, Moon, and planets
20 of the most popular asterisms
25 select CCD imaging objects
29,500 select SAO stars, double stars, and variable stars

CPC Mount and Tripod

Mount:
Dual-tine fork; cast aluminum
Dual-axis DC servo motors with optical encoders to improve tracking and GoTo precision
Motor resolution: 0.1406 arcsec
R.A. and declination 5.625" aluminum worm gears; 180-tooth brass worm wheel
9.8" azimuth bearing
Internal 16-channel GPS receiver sends date, time, location information to hand controller, requiring no input by user
Altitude and azimuth manual clutches allow the mount to be moved even with the power off
Ports: Autoguider, 2 x auxiliary, PC interface
Detachable hand controller holder
9-15 VDC power requirement

Tripod:
Adjustable height
2"-diameter stainless steel legs
Accessory tray for holding eyepieces, filters, etc.
Center support bracket locks legs in place to add stability and reduce vibrations
Weight: 19 pounds

Included Accessories

Eyepiece:

1.25" barrel diameter
Accepts most 1.25" astronomical filters
40mm focal length produces 51x power
42' field of view at 1000 yards
0.8° angle of view

Diagonal:

90° angle places head in comfortable viewing position
1.25" snout and holder
Star configuration corrects view horizontally but not vertically

Finderscope:

Low 9x magnification ensures a wide field of view for easier alignment
50mm objective allows users to see dimmer objects to have more alignment star choices
Includes quick release bracket

Power Adapter:

9-15 VDC
Car/vehicle port plug

Packaging Info
Package Weight	95.9 lb
Box Dimensions (LxWxH)	45.0 x 36.0 x 19.0"

Optical Design	Schmidt-Cassegrain
Aperture	8.0" / 203.2mm
Focal Length	2032mm
Focal Ratio	f/10
Eyepiece Barrel Diameter	1.25"
Diagonal	90° star 1.25" snout and eyepiece holder
Finderscope	9x50
Tripod	Adjustable-height 2" stainless steel legs
Mount Type	Dual fork arm Motorized, computer controlled
GoTo System	NexStar computer hand controller
Power Requirements	9 - 15 VDC
Optical Tube Length	17.0" / 43.2 cm
Weight	OTA: 42.0 lb / 19.0 kg Tripod: 19.0 lb / 8.6 kg 74.0 lb / 34.0 kg, fully assembled

Based on Astronomy magazineÃ¢€â„¢s telescope "report cards", scopes of this size and type generally perform as follows . . .
Terrestrial Observation: Observing terrestrial objects (nature studies, birding, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial observing. Scopes with apertures under 5" to 6" are generally most useful for terrestrial observing due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.Ã‚	No
Lunar Observation: Visual observation of the Moon is possible with any telescope. Larger aperture scopes will provide more detail than smaller scopes, thereby getting a higher score in this category, but may require an eyepiece filter to cut down the greater glare from the Moon's sunlit surface so small details can be seen more easily. Lunar observing is more rewarding when the Moon is waxing or waning as theÃ‚ changingÃ‚ sun angle casts constantly varyingÃ‚ shadows to reveal craters and surface features by the hundreds. Ã‚	Great
Planetary Observation:	Good
Binary and Star Cluster Observation:	Very Good
Galaxy and Nebula Observation:	Good
Photography:	Yes
Terrestrial Photography: Photographing terrestrial objects (wildlife, scenery, etc.) is usually possible only with refractor and catadioptric telescopes, and convenient only when the scope is on an altazimuth mount or photo tripod. Most reflectors cannot be used for terrestrial photography. Scopes with focal ratios of f/10 and faster and apertures under 5" to 6" are generally the most useful for terrestrial photography due to atmospheric conditions (heat waves and mirage, dust, haze, etc.) that degrade the image quality in larger scopes.	No
Lunar Photography: Photography of the Moon is possible with virtually any telescope, using a 35mm camera, DSLR, or CCD-based webcam (planetary imager). While an equatorial mount with a motor drive is not strictly essential, as the exposure times will be very short, such a mount would be helpful to improve image sharpness, particularly with webcam-type cameras that take a series of exposures over time and stack them together. Reflectors may require a Barlow lens to let the camera reach focus.Ã‚	Yes
Planetary Photography:	Yes
Star Cluster / Nebula / Galaxy Photography:	Yes

In the Box

Celestron CPC 800 8"/203mm Catadioptric Telescope Kit

40mm (51x) Plossl Eyepiece (1.25")

8x50mm Finderscope with Quick Release Bracket

Car Battery Adapter (25'/7.7 m)

NexRemote Control Software CD

RS-232 to Serial Port Cable - for GPS 16 Accessory

Star Diagonal - 1.25"

Visual Back (1.25")

Computerized Altazimuth Fork Mount

Tripod

2-Year Warranty

Celestron StarSense Telescope Alignment Accessory

CAD682.45

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