Keterangan :

Celestron' s CGEM-800 features our high-end 8" Schmidt Cassegrian OTA with XLT coatings mounted on our brand new CGEMâ„¢ mount.

The CGEMâ„¢ mount has a fresh, attractive, bold appearance and is capable of carrying Celestron' s higher-end SCT optical tubes ( up to 11" ) securely and vibration free which is ideal for both imaging and visual observing.

Ergonomic Design - CGEM was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.

Innovation - The CGEM series has a new innovative Polar alignment procedure called All-Starâ„¢ . All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM, sure to please astroimagers, is the Permanent Periodic Error Correction ( PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.

Performance - For objects near the Meridian ( imaginary line passing from North to South) , the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40, 000 objects, 100 user defined programmable objects and enhanced information on over 200 objects.

Celestron' s CGEM mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.
Optical Design Schmidt-Cassegrain
Aperture 203.2 mm ( 8 in)
Focal Length ( mm) 2032 mm ( 80 in)
Focal Ratio 10
Eyepiece 1 ( mm) 25 mm ( 0.98 in)
Magnification 1 81 x
Finderscope 6x30
Star Diagonal 1.25
Mount Computerized Equatorial
Optical Tube Aluminum
CD ROM NexRemote control software with RS232 cable
Tripod Adjustable, Stainless Steel
Power Supply Car battery adapter
Highest Useful Magnification 480 x
Lowest Useful Magnification 29 x
Limiting Stellar Magnitude 14
Resolution ( Rayleigh) 0.69 arc seconds
Resolution ( Dawes) 0.57 arc seconds
Light Gathering Power 843 x
Angular Field of View ( deg) 0.62 °
Secondary Mirror Obstruction 2.7 in ( 69 mm)
Secondary Mirror Obstruction by Diameter 34 %
Secondary Mirror Obstruction by Area 11 %
Optical Coatings Starbright XLT Coating
Optical Tube Length 17 in ( 432 mm)
Telescope Weight 88 lbs ( 40 kg)
Counterweights 1 x 17 lbs
Motor Drive Low cog DC Servo motors with encoders, both axes
Slew Speeds Nine slew speeds: 5 ° / sec, 2 ° / sec, 1 ° / sec, 64x, 16x, 8x, 4x, 1x, .5x
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes EQ North and EQ South
Alignment Procedures 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
Software Precision 24 bit, 0.08 calculation
Gear Steel worm gear and 90 mm pitch diameter brass worm wheel
Computer Hand Control Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
Database 40, 000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Power Requirements 12 VDC 3.2 Amps
GPS Optional SkySync GPS Accessory
Eyepiece 1 Field of View ( deg) .62 °