Celestron CGEM II 1100 11 "Telescope

The CGEM II 110 telescope belongs to the new CGEMII range, which is an evolution of the old Celestron CGEM. The improvements of this 11 "model are evident both in the optical tube and in the frame.
The optical tube is 11 "or 280mm aperture and incorporates Celestron's high-quality Star Bright XLT coatings. With this optical treatment , the observed image does not lose its brightness, contrast or sharpness. Brightness gain vs the 11 "model is also significant, 40% more than the 9.25" version. Thanks to the 11 "aperture, the light gathering power is 1127 times greater than that of the human eye. It is made of high quality aluminum .
The focal length given by the telescope is 2800mm , with a focal ratio of f / 10 . This feature makes it especially attractive for deep sky and planetary use. For astrophotographic use it is always advisable to use a focal reducer for longer exposures. The equipment comes with a standard 40mm eyepiece . (70x) The search engine that it incorporates is 9x50mm, it also incorporates a diagonal for a more comfortable viewing.
The frame coupling structure is the dovetail CGE.
The Celestron CGEM II mount is the evolution of the original CGEM, an equipment designed to support optical tubes up to 11 ", guaranteeing efficient and vibration-free tracking.
Its load capacity is up to 18kg (40lb) and includes a steel tripod with graduation to facilitate quick leveling. The thickness of the legs, 2 "guarantee maximum stability to the equipment, once assembled and ready for observation.
The innovation and evolution of this frame rests first of all on the great improvement of its design , more ergonomic, with buttons for adjusting the altitude and alzimuth, large and very manageable, capable of achieving rapid and precise alignment and orientation. Internal wiring provides a much cleaner and more practical appearance. It includes mechanical improvements also in the clutch levers, longer to facilitate tightening and loosening, as well as improvements in gears and ball bearings. All this to guarantee a finer and more precise follow-up .
The next stage of evolution of this mount is the ALL-STAR alignment procedure, with it you can align the team with any star in the sky. The permanent correction of the periodic error , is one of the most appreciated characteristics by astrophotographers , it is the key for the monitoring to guarantee the best possible captures. Another great advantage for astrophotographers is that tracking beyond the meridian ensures uninterrupted imaging at those points just near the meridian .
The mount's database has more than 40,000 objects , of which 100 can be programmed by the user and 200 present updated and improved information.
Characteristics:
Optical tube

• Schmidt-Cassegrain optical design
  
• Opening (mm): 279.4 mm (11 inches)
  
• Focal length: 2800 mm (110 inches)
  
• Focal ratio: 1/10
  
• Eyepiece focal length: 40mm (1.57in)
  
• Eyepiece magnification: 70 x
  
• Finder: 9x50mm
  
• Diagonal: 1.25
  
• Aluminum Optical Tube
  
• Highest Useful Magnification: 660 x
  
• Lowest useful magnification: 40 x
  
• Limit of stellar magnitude: 14.7
  
• Resolution (Rayleigh): 0.5 arc seconds
  
• Resolution (Dawes): 0.42 arc seconds
  
• Light Collection Power: (compared to human eye) 1593 x
  
• Secondary mirror obstruction: 3.75 in (95 mm)
  
• Obstruction of the secondary mirror in relation to the diameter: 34%
  
• Secondary mirror obstruction by area: 12%
  
• Optical coatings: StarBright XLT
  
• Optical tube length: 610 mm
  
• Optical tube weight: 12kg
  
• CGE Mount Dovetail Compatibility
  

Mount

• Mount Type: German equatorial
  
• Tripod: Steel tripod with 2 "legs with graduated markings on bottom section for quick leveling
  
• Double dovetail socket - connects directly to Vixen / CG-5 and Losmandy / CGE dovetails
  
• Payload capacity: 40kg
  
• Latitude range: 15º - 70º
  
• Power requirements: 12 VDC, 3.2 amps
  
• Ports: 1x control knob port, 1x auxiliary port, 1x automatic guidance port, 1 USB 2.0 port (on the control stick) for direct link to a PC via ASCOM software.
  
• Drive motor: small diameter DC servo motors
  
• Spin Speeds: 9 Speeds
  
• Tracking Speeds: Sidereal, Solar and Lunar
  
• Tracking modes: EQ North and EQ South
  
• Alignment Procedures: AutoAlign, 2-Star Alignment, Quick Alignment, 1-Star Alignment, Last Alignment, Alignment with the Solar System
  
• Dual Line Computer Control Knob, 16 Character Liquid Crystal Display; 19 LED buttons with fiber optic backlight, USB 2.0 port for PC connection
  
• Nexremote Software
  
• Database: 40,000+ objects, 100 user-defined objects. Improved information on more than 200 objects
  
• Frame weight: 18 kg
  
• Tripod weight: 9kg
  
• Counterweight weight: 8kg
  
• Total frame weight: 37 kg