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Celestron CGEM II 800 SCT Telescope

Price:  £3,275.00 (Inc. 20% VAT)Earn 3,275 Loyalty Points

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Model:  12010
Brand:  Celestron

Celestron CGEM II 800 SCT Telescope
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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.

ERGONOMIC DESIGN

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.

INNOVATION

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.

PERFORMANCE

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.

OPTICAL TUBE FEATURES:

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 sky
Includes large CGE style dovetail mounting bar
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
Specifications:

Optical Design: Schmidt-Cassegrain
Aperture (mm): 203.2 mm (8 in)
Focal Length: 2032 mm (80 in)
Focal Ratio: 10
Focal Length of Eyepiece 1 (mm): 25 mm (0.98 in)
Magnification of Eyepiece 1: 81 x
Finderscpoe: 6x30
Star Diagonal: 1.35
Optical Tube: Aluminum
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 (Compared to human eye): 843 x
Secondary Mirror Obstruction: 2.5 in (64 mm)
Secondary Mirror Obstruction by Diameter: 31%
Secondary Mirror Obstruction by Area: 9.77%
Optical Coatings: StarBright XLT
Optical Tube Length: 17 in (432 mm)
Optical Tube Weight: 12.5 lbs (5.67 kg)
Dovetail Compatibility: CGE Mount
Mount
Mount Type: German Equatorial Mount
Tripod: 2” Steel tripod with graduated markings on lower section
Dovetail Mount: Directly connects to both CG-5 & CGE dovetail bars
Payload Capacity: 40 pounds
Latitude Range: 15 – 70 degrees
Power Requirements: 12 VDC, 3.2 amps
Ports: 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 motors
Slew Speeds: 9 slew speeds
Tracking Rates: Sidereal, Solar and Lunar
Tracking Modes: EQ North and EQ South
Alignment Procedures: AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
Computerized Hand Control: Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connection
Database: 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Mount Weight: 40 pounds
Tripod Weight: 20 pounds
Weight of Counterweight: 17 pounds
Total Weight of Mount Kit: 77 pounds

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