Celestron C14-A (XLT) Optical Tube

The 14 "optical tube is made of high quality aluminum, incorporates starbright XLT coatings for greater light transmission. Compatible with CGE (Dovetail) mount, as it includes the CGE mount compatible dovetail rail. Diagonal star provides a more comfortable viewing position when observing objects that are in the sky.

Characteristics:

• Optical design: Schmidt-Cassegrain
  
• Opening (mm): 355.6 mm (14 inches)
  
• Focal length: 3910 mm (154 inches)
  
• Focal Ratio: 11
  
• Eyepiece 1 focal length (mm): 40 mm (1.57 in)
  
• Eyepiece magnification 1: 98 x
  
• finder telescope: 9x50
  
• Diagonal Star: 1,25
  
• Aluminum Optical Tube
  
• Fastar Compatible: Yes
  
• Maximum useful magnification of: 840 x
  
• Minimum Useful Magnification: 51 x
  
• Stellar Limit Magnitude: 15.3
  
• Resolution (Rayleigh): 0.39 arcseconds
  
• Resolution (Dawes): 0.33 arcseconds
  
• Light Energy Encounter (compared to human eye): 2581 x
  
• Secondary Obstruction Mirror: 4.5 in (114 mm)
  
• Secondary Mirror obstruction by Diameter: 32%
  
• Secondary Mirror obstruction by Area: 10%
  
• Optical Coatings: StarBright XLT
  
• Optical Tube Length: 31 in (787 mm)
  
• Optical Tube Weight: 45 lbs (20 kg)
  
• Dovetail: CGE Monunt Compatibility