Celestron CGEMII 800 Schmidt-Cassegrain Telescope
  • Celestron CGEMII 800 Schmidt-Cassegrain Telescope
  • Celestron CGEMII 800 Schmidt-Cassegrain Telescope

Celestron CGEMII 800 Schmidt-Cassegrain

  • 8" Schmidt-Cassegrain optical tube assembly
  • Celestron's premium StarBright XLT coatings
  • 2032 mm focal length (f/10)​
  • Includes large CGE style dovetail mounting bar

See below a review for Celestron in BBC Sky at Night magazine.  A very positive 4.4 out of 5*  for the CGEM II Computerised EQ mount.

£2,897.00
VAT included
Quantity
[email protected] for availability

 

Availability during Covid-19 - Check here

 

Delivery in 1-5 Days*

 

21 Day Returns

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.

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
Optical Tube Info  
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 Info  
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 lbs
Latitude Range 15º – 70º
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 lbs
Tripod Weight 20 lbs
Weight of Counterweight 17 lbs
Total Weight of Mount Kit 77 lbs

WIFI

 

 

 

 

 

Wifi Icon 177X123  

Celestron’s telescopes reach a new level with integrated WiFi! Leave your hand control behind and slew to all the best celestial objects with a tap of your smart device. Connect your device to your WiFi telescope’s built-in wireless network and explore the universe with Celestron’s SkyPortal mobile app for iOS and Android.


Or upgrade your compatible Celestron computerized telescope with the SkyPortal WiFi module. SkyPortal provides full wireless control of your telescope and turns your smart device into your own personal planetarium and observatory!

SKYPORTAL

 

 

 

Skyportal Icon 177X123   Celestron’s newest planetarium app is an astronomy suite that redefines how you experience the night sky. Explore the Solar System, 120,000 stars, over 200 star clusters, nebulae, galaxies, and dozens of asteroids, comets, and satellites—including the ISS. SkyPortal includes everything you need to experience the night sky in an exciting new way.

STARSENSE

 

 

 

 

Starsense 177X123    

 

With Celestron’s patented StarSense Technology, telescope alignment has never been easier! Just attach the StarSense AutoAlign accessory, push the Align button on the hand control or smart device, and StarSense begins capturing and comparing images of the night sky against its internal database.

In about three minutes, it’s gathered enough information to triangulate its position and align itself. Then, press the Sky Tour button: StarSense will automatically slew to all the best stars, planets, galaxies, and more currently visible in the night sky.
 

 

12010

Data sheet

Optical Design
Schmidt Cassegrain
Aperture
8 inch
Mount Type
CGEM Computerised Equatorial
Focal Length
2032 mm
Focal Ratio
F10
Optical Coatings
Starbright XLT Coating
What is more important?
I want to photograph the night sky
Telescope to navigate for you?
Yes, I would like a scope to guide me.
Warranty
Two Years

Specific References

Download

CGEM Review 1

40,000 object database with over 100 user-definable objects and expanded information on over 200 objects Proven NexStar computer control technology Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced Flash upgradeable hand control software and motor control units for downloading product updates over the Internet New "All-star" Polar alignment uses any bright star for a quick and accurate Polar alignment

Download (7.43M)

CGEM Review 2

40,000 object database with over 100 user-definable objects and expanded information on over 200 objects Proven NexStar computer control technology Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced Flash upgradeable hand control software and motor control units for downloading product updates over the Internet New "All-star" Polar alignment uses any bright star for a quick and accurate Polar alignment

Download (3.71M)

Click here to leave a review