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Home Telescopes Celestron Telescopes Celestron CGEM II Telescopes Celestron CGEM II 800 Schmidt Cassegrain Telescope
The CGEM II 800 Schmidt-Cassegrain Telescope features Celestrons premium StarBright XLT coated optics and the newly redesigned CGEM II computerized equatorial mount. It is the most lightweight and portable of the three size models. This telescope is especially at home as a solid platform for long exposure photography with optional CCD cameras or photographic equipment. At 8 inches of aperture with our premium StarBright XLT coatings, the CGEM II 800 gives you over 800 times the light gathering power than the unaided eye.
The CGEM II has a fresh, attractive, bold appearance and is capable of carrying Celestrons higher-end SCT optical tubes (up to 11") securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding 40 lbs. of payload and slewing at 5° per second, you will be able to instantly point to any of the celestial objects in the database.ERGONOMIC DESIGNCGEM II 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.INNOVATIONThe CGEM II series features Celestrons innovative Polar alignment procedure called All-Star. All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM II 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.PERFORMANCEFor objects near the Meridian (imaginary line passing from North to South), the CGEM II will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM II 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 II 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.Included in this package 8" Schmidt-Cassegrain optical tube assembly Celestron's premium StarBright XLT coatings 2032 mm focal length (f/10) 6x30 finderscope to help accurately center alignment objects Star diagonal provides more comfortable viewing position when observing objects that are high in the skyCGEMII computerised mount and tripod Includes large CGE style dovetail mounting barCOMPUTERIZED MOUNT FEATURES 40 lbs payload capacity Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle 2" steel legs with height index marks for quick leveling USB 2.0 port on hand control for direct links to a PC via ASCOM supported software. 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects Internal cabling throughout for worry-free remote operation Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation Able to track past the meridian allowing seamless imaging Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings. Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits Built-in polar alignment program to polar align on any star in the sky Longer clutch levers to make tightening and loosening of clutches easier Custom database lists of all the most famous deep-sky objects by name and catalog number Solar System alignment method allows to view the moon and planets during the day Permanent Programmable Periodic Error Correction (PEC) corrects periodic tracking errors inherent to all worm drives Custom Rate 9 feature allows to set maximum slew rate Tandem mode allows to star align the mount even when positioned for tandem scope use USB hand control to control the telescope via a personal computer Includes NexRemote telescope control software, for advanced control of telescope via computer Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings GPS-compatible with optional SkySync GPS AccessoryOptical Design Schmidt-CassegrainAperture (mm) 203.2 mm (8 in)Focal Length 2032 mm (80 in)Focal Ratio 10Focal Length of Eyepiece 1 (mm) 25 mm (0.98 in)Magnification of Eyepiece 1 81 xFinderscpoe 6x30Star Diagonal 1.35Optical Tube AluminumHighest Useful Magnification 480 xLowest Useful Magnification 29 xLimiting Stellar Magnitude 14Resolution (Rayleigh) 0.69 arc secondsResolution (Dawes) 0.57 arc secondsLight Gathering Power (Compared to human eye) 843 xSecondary Mirror Obstruction 2.5 in (64 mm)Secondary Mirror Obstruction by Diameter 31%Secondary Mirror Obstruction by Area 9.77%Optical Coatings StarBright XLTOptical Tube Length 17 in (432 mm)Optical Tube Weight 12.5 lbs (5.67 kg)Dovetail Compatibility CGE Mount Mount Info Mount Type German Equatorial MountTripod 2 Steel tripod with graduated markings on lower sectionDovetail Mount Directly connects to both CG-5 & CGE dovetail barsPayload Capacity 40 poundsLatitude Range 15 70 degreesPower Requirements 12 VDC, 3.2 ampsPorts 1x Hand control port, 1x Auxiliary Port, 1x Auto guider port, 1 USB 2.0 port (on hand control)Motor Drive Low cog DC servo motorsSlew Speeds 9 slew speedsTracking Rates Sidereal, Solar and LunarTracking Modes EQ North and EQ SouthAlignment Procedures AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System AlignComputerized Hand Control Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connectionDatabase 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objectsMount Weight 40 poundsTripod Weight 20 poundsWeight of Counterweight 17 poundsTotal Weight of Mount Kit 77 pounds
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