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Celestron CGEM II 800 Schmidt-Cassegrain Telescope


Price: $2,349.00


  • Manufacturer: Celestron
  • UPC: 050234120104
  • MPN: 12010
  • SKU: CEL-12010
  • Availability: In Stock - Ships from Warehouse

*Is ONLY to the LOWER 48.
Not Alaska/Hawaii/ PR/Guam/Thailand, etc


DESCRIPTION

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.

 

OVERVIEW

OPTICAL TUBE FEATURES

  • 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

  • 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

2-Year Warranty

For two years, Celestron will cover repairs or replacement of this product in cases of defective components. This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is not covered by this warranty. For more details, visit Celestron's Warranty page.

Optical Tube

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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