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Celestron CGEM 800 Computerized Cassegrain Telescope

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Price:
$1,140.00
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Condition:
New
Availability:
in stock
Shipping:
$60.00 (Fixed shipping cost)
Minimum Purchase:
1 unit(s)
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Product Description

Celestron CGEM 800 Computerized Cassegrain Telescope

 

TheCelestron CGEM 800 Computerized Telescope features a high-end 8" Schmidt Cassegrain OTA with the famous XLT coatings mounted on our brand new CGEM™ mount. Ergonomic CGEM MountDesign The CGEM™ mount is not just a pretty face with its new and bold appearance. It is fully capable of carrying Celestron’s higher-end SCT optical tubes securely and vibration free. This makes it perfect for both imaging and visual observing purposes. CGEM 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. Ingenius Innovation The CGEM series aim to make things easier with the All-Star Polar Alignment procedure which allows you to choose any bright star in the sky, while the software calculates and assists with polar alignment. Another reason why the CGEM is great for astrophotography is the Permanent Periodic Error Correction (PPEC).This feature is meant to train out the worm gears periodic errors, while allowing for the mount to maintain the PPEC recordings. Great Performance For objects near the Meridian (which is imaginary line passing from North to South), the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky.

CGEM Computerized Equatorial Mount

2" steel tripod with Accessory Tray

NexStar computer control technology

Flash upgradeable hand control software and motor control units for downloading product updates

Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits

Steel worm gear and 90mm pitch diameter brass worm wheel

Drive Motors - Low Cog DC Servo motor with motor armatures that are skewed to minimize cogging which is required fro low speed tracking.

Designated six-pin RJ-12 modular jack, ST-4 compatible guide port

Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons

Autoguide port and auxiliary ports located on the electronic pier

RS-232 communication port on hand control

GPS-compatible with optional CN16 GPS Accessory

 

Celestron CGEM 800 Computerized Cassegrain Telescope

 

Specifications

Optical Design

8" Schmidt-Cassegrain

Aperture

203.2 mm (8 in)

Focal Length

2032 mm (80 in)

Focal Ratio

10

Finderscope

6x30

Mount

Computerized Equatorial

Optical Tube

Aluminium

Optical Coatings

Starbright XLT Coating

Eyepiece 1

25 mm (0.98 in)

Magnification 1

81 x

Star Diagonal

1.25

Tripod

Adjustable, Stainless Steel

CD ROM

NexRemote control software with RS232 cable

Power Supply

Car battery Adaptor

Highest Useful Magnification

480 x

Lowest Useful Magnification

29 x

Limiting Stellar Magnitude

14

Eyepiece 1 Field of View

0.62 °

Light Gathering Power

843 x

Angular Field of View

0.62 °

Secondary Mirror Obstruction

2.7 in (68.58 mm)

Secondary Mirror Obstruction by Area

11.4 %

Secondary Mirror Obstruction by Diameter

33.8 %

Resolution (Rayleigh)

0.69 arcsec

Resolution (Dawes)

0.57 arcsec

Gear

Steel worm gear and 90mm pitch diameter brass worm wheel

Motor Drive

Low cog DC Servo motors with encoders, both axes

Computer Hand Control

Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons

Slew Speeds

Nine slew speeds: 5 �/sec, 2 �/sec, 1 �/sec, 64x, 16x, 8x, 4x, 1x, .5x

Tracking Rates

Sidereal, Solar and Lunar

Tracking Modes

EQ North and EQ South

Alignment Procedures

2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align

Software Precision

24bit, 0.08 calculation

Database

40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects

Power Requirements

12 VDC 1.5 Amp

GPS

Optional CN16 Accessory

Counterweights

1 x 17 lb

Optical Tube Length

17 in (431.8 mm)

Telescope Weight

88 lb (39.92 kg)

User Level

For Advanced

Telescope Type

Schmidt-Cassegrain

Aperture Size

203mm

Focal Length

2032mm

Focal Ratio

f/10

Highest Practical Magnification

480x

Finderscope

6x30

Eyepieces

25mm

Mount Type

Computerized Mount

Tripod

Steel

Warranty

2 Years Limited Warranty

 


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