Celestron CGEM II 800 HD
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Celestron CGEM II 800 HD

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Return time
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Celestron CGEM II 800 HD Product description

  1. Schmidt-Cassegrain Design: The Celestron CGEM II 800 HD utilizes a Schmidt-Cassegrain (SCT) catadioptric design, combining mirrors and a corrector plate to deliver a long focal length in a compact tube. This design offers exceptional versatility for both planetary observation and deep-sky imaging, minimizing optical aberrations while maintaining portability.

  2. Advanced GoTo Mount: Equipped with Celestron's CGEM II German Equatorial Mount, this system provides precise computerized tracking and GoTo capabilities. It allows users to effortlessly locate and track over 40,000 celestial objects, making it ideal for extended observation sessions and astrophotography.

  3. Superior Optics: The 8-inch (203mm) aperture provides significant light-gathering power, revealing faint nebulae and distant galaxies. The corrector plate is precisely manufactured to minimize spherical aberration, ensuring sharp, high-contrast images across the entire field of view.

  4. Robust and Stable Platform: The sturdy steel tripod and heavy-duty equatorial mount minimize vibrations, offering a stable foundation crucial for high-magnification viewing and long-exposure astrophotography. This durability ensures consistent performance in various observing conditions.

ABOUT THE CELESTRON CGEM II 800 HD

The Celestron CGEM II 800 HD stands out as a highly versatile and powerful telescope system, marrying Celestron’s revered 8-inch Schmidt-Cassegrain optical tube with the advanced functionality of the CGEM II German Equatorial Mount. This catadioptric telescope is engineered for both demanding visual observers and serious astrophotographers, offering an ideal balance of aperture, focal length, and tracking precision. Its compact design, despite its considerable aperture, makes transport and setup relatively manageable for a sophisticated instrument. The EdgeHD-equivalent optical performance (common in newer Celestron 8" SCTs, providing sharp, flat images) and multi-coated optics ensure breathtaking views of planets, nebulae, and galaxies. Constructed with robust aluminum and steel components, this telescope provides the stability and durability required for reliable outdoor use, while its computerized GoTo capabilities greatly enhance the user experience by simplifying object location and precise tracking across the night sky. It's perfectly suited for those looking to delve deep into the universe, whether for detailed planetary studies or captivating deep-sky imaging.

ABOUT CELESTRON

Celestron, an American company founded in 1960 in Torrance, California, has long been a pioneering force in the amateur astronomy industry. Renowned for its innovation, Celestron popularized the Schmidt-Cassegrain telescope, making high-performance optics accessible to a wider audience. The brand is celebrated for its commitment to optical excellence, user-friendly designs, and advanced computerized GoTo mounts. Celestron's telescopes are trusted globally by enthusiasts and seasoned astronomers alike for their reliability and performance, enabling discoveries and captivating views of the cosmos.

MAIN FEATURES

  • Optical Design: 8-inch (203mm) Schmidt-Cassegrain (SCT) catadioptric telescope.

  • Focal Length: 2032 mm (f/10).

  • Mount Type: CGEM II German Equatorial Mount with GoTo capabilities, supporting payloads up to 40 lbs (18 kg).

  • Database: Computerized GoTo system with a database of over 40,000 celestial objects.

  • Tracking: Precision tracking for astrophotography and long-exposure imaging.

  • Materials: High-quality aluminum optical tube and robust steel tripod for stability.

  • Weight: Total weight approximately 30 kg (optical tube ~6 kg, mount ~18 kg, tripod ~6 kg).

  • Compatibility: Compatible with various 1.25" and 2" eyepieces and accessories, standard Losmandy CGE saddle plate for telescope attachment.

WARRANTY

This product is covered by a 2-year global warranty that includes defects in materials and manufacturing under normal use.

IN THE BOX

  • Celestron CGEM II 800 HD Optical Tube Assembly (OTA)

  • CGEM II GoTo Equatorial Mount

  • Steel Tripod with Accessory Tray

  • NexStar+ Hand Control

  • 8x50 Finderscope

  • 2" Star Diagonal with 1.25" Adapter

  • 25mm Plössl Eyepiece (1.25")

  • Car Power Adapter Cable

  • Software CD-ROM

  • Instruction Manual

General properties

Manufacturer Celestron
Telescope series Celestron CGEM
Made in -
In production since -
Warranty 2 years
SKU C823075x

Optical properties

Optical design Schmidt Cassegrain
Lowest useful magnification. 29.00 x
Highest useful magnification. 480.00 x
Optical tube diameter -
Optical tube length 432 mm
Optical tube weight -
Aperture. 203.20 mm
Focal length. 2032.00 mm
Focal ratio. £8.47
Focal Length of Eyepiece 1 40 mm
Magnification of Eyepiece 1 51x
Focal Length of Eyepiece 2 -
Magnification of Eyepiece 2 -
Focal Length of Eyepiece 3 -
Magnification of Eyepiece 3 -
Light gathering power. 843.00 x
Limitting stellar magnitude. £11.86
Resolution Rayleigh. 0.69 Arc seconds
Resolution Dawes. 0.57 Arc seconds

Reflector properties

Secondary mirror diameter. 69.00 mm
Secondary mirror obstruction by diameter. 34.00 %
Secondary mirror obstruction by area. 11.00 %

Recording properties

Image Capture Optional
Photo adapter Optional

Mounting properties

Mount type of build CGEM Computerized Equatorial
Tripod adaptable Yes
Tripod type Adjustable
Tripod material Stainless steel

Navigation properties

Stellar navigation software All-Star Polar Alignment, NexRemote, NexStar
GoTo Control Yes
GoTo Language English
GoTo control interfaces NexRemote
Alignment method 1-star, 2-star, Last alignment, Quick align, Solar system
GPS Optional
Tracking Yes
Tracking rates Lunar, Sidereal, Solar
Tracking Modes EQ North, EQ South
Guiding performance -
Slow motion controls No
Slew Speed Nine Slew Speeds
Communication Ports Multi AUX ports, Multi USB ports
Computer hand control Double line

Physical properties

Power Supply Car battery adapter
Lens coating StarBright XLT
Eyepiece barrel diameter 1.25'' / 31.75 mm
Eyepiece angle 90°
Barlow lens -
Total kit weight. 1410.96 oz (40.00 kg)
Color White

Special features

Finderscope 9x50
Recommended for Advanced
Suitable for observing Astrophotography, Galaxies, Moon, Nebulae, Planets

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