Celestron CGEM II 800, 8" Schmidt-Cassegrain TelescopeSKU: CNCGEM2800Mfr. Part: 12010
25mm 1.25" Eyepiece - 6x30mm Finderscope - Finderscope Bracket - Visual Back (1.25") - 1.25" 90-Degree Mirror Diagonal - Dovetail Slide Bar - Lens Caps - CGEM Motorized Equatorial Telescope Mount with Tripod - NexStar Hand Controller - Counterweight Shaft - 17 lb Counterweight - Tripod - 2-Year USA Warranty
The CGEM II 800 Schmidt-Cassegrain Telescope features Celestron's 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.
A fresh update to the venerable CGEM mount, the CGEM II 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. 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.
CGEM 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.
The CGEM II series features Celestron's 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.
For 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.
COMPUTERIZED 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 Accessory
8" Schmidt-Cassegrain optical tube assemblyCelestron's premium StarBright XLT coatings2032 mm focal length (f/10)6x30 finderscope to help accurately center alignment objectsStar diagonal provides more comfortable viewing position when observing objects that are high in the skyIncludes large CGE style dovetail mounting bar
Optical DesignSchmidt-CassegrainAperture (mm)203.2 mm (8 in)Focal Length2032 mm (80 in)Focal Ratio10Focal Length of Eyepiece 1 (mm)25 mm (0.98 in)Magnification of Eyepiece 181 xFinderscope6x30Star Diagonal1.25Highest Useful Magnification480 xLowest Useful Magnification29 xLimiting Stellar Magnitude14Resolution (Rayleigh)0.69 arc secondsResolution (Dawes)0.57 arc secondsLight Gathering Power843 xSecondary Mirror Obstruction2.5 in (64 mm)Secondary Mirror Obstruction by Diameter31%Secondary Mirror Obstruction by Area9.77%Optical CoatingsStarbright XLT CoatingOptical Tube Length17 in (432 mm)Optical Tube Weight12.5 lbs (5.67 kg)Dovetail CompatibilityCGE / CGX MountMount TypeComputerized EquatorialTripod2" Steel tripod with graduated markings on lower sectionDovetail MountDirectly connects to both CG-5 & CGE dovetail barsPayload capacity40 lbs.Latitude Adjustment Range15 to 70 DegreePower Requirements12 VDC, 3.2 ampsPorts1x Hand control port, 1x Auxiliary Port, 1x Auto guider port, 1 USB 2.0 port (on hand control)Motor DriveLow cog DC servo motorsSlew Speed9 Slew SpeedsTracking RatesSidereal, Solar and LunarTracking ModesEQ North and EQ SouthAlignment ProceduresAutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System AlignComputerized Hand ControlDouble line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC c onnectionDatabaseDatabase 40,000+ objects, 100 user defined programmable objects. En hanced information on over 200 objectsMount Weight40 poundsTripod Weight20 poundsWeight of Counterweight17 PoundsTotal Weight of Mount Kit77 Pounds
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