Celestron CGEM 800 HD

Celestron CGEM 800 HD
The Celestron CGEM 800 HD is part of the Celestron CGEM HD series which is the advanced version of the CGEM series. The telescopes of the CGEM HD series are unique in that the lens used has absolutely no chromatic aberration whatsoever. The light is sent to the mirrors and the eyepiece in equal frequencies, making the image sharper because of the total absence of colour dispersion. Furthermore, the HD version uses mirror locks to keep the mirrors on the right spot. This way, the image remains stable. The result is an image that is almost three times sharper than that of a standard Schmidt-Cassegrain telescope. The Celestron CGEM HD series may therefore rightly be called "HD".

Celestron CGEM 800 HD telescope
The catadioptric Celestron CGEM 800 telescope with equatorial mount has been ergonomically designed and has a fresh, bold and attractive appearance. The mount is suitable for astrophotography as well as for "normal" observations. The Celestron CGEM 800 comes with NexRemote software for the telescope which can be used in combination with your PC. Moreover, the telescope is easy to (dis)assemble and transport. The Celestron CGEM 800 HD telescope has a focal length of 2032mm, making it ideal for deep-sky observations.

Celestron CGEM 800 HD telescope: mirrors and coating 
The Celestron CGEM 800 HD telescope has a primary mirror with a 203.2mm diameter. The mirror features the unique Celestron Starbright coating; this coating ensures that the mirror is stronger and reflects more light. Also, it renders the surface of the mirror more even and directs the light more accurately to the secondary mirror. The coating consists of several layers: Celestron have used aluminium, titanium and magnesium.

CGEM database GoTo
The database of the CGEM 800 HD contains over 40,000 celestial objects including Messier objects, the Caldwell Catalog, NGC systems, nebulae and planets. A special identification feature tells you where to look, but you can also take a tour through the sky. For example: point the telescope somewhere, let it identify the Messier objects and the CGEM 800 HD will automatically show the five nearest objects; that is GoTo at its best. The GoTo is easy to operate with the included remote control which has a bright LCD display.

Alignment
The CGEM 800 HD features a revolutionary alignment method: All-Star Polar Alignment. Using the software, you align the telescope by selecting a bright star; alignment is possible even without seeing the North Star.

Specifications

• No unwanted aberration
• Great for astrophotography thanks to the superb image quality
• Ergonomic design, easy to transport
  
• Erecting eyepiece
• NexRemote software which allows you to use the telescope with your PC
  
• Full GoTo with more than 40.000 objects in the database
• Periodic Error Control; permanently programmable
  
• Steel tripod
  
• Equatorial mount with tracking motor

Astrophotography
With the right camera adapter and T2 ring the Celestron CGEM 800 HD telescope is ideal for astrophotography. The stunning HD images from the telescope make photographing celestial bodies a lot of fun. Below are some images created using this telescope.