ASA AZ1400

The world‘s largest full CNC manufactured telescope

Customer Statement

"We have recently purchased the 1.40 m telescope „Milankovic“ from the ASA company. The telescope was installed in May 2016 at our Astronomical Station Vidjevica and only a few days later we have been convinced that both the tracking and image quality are excellent...

We are very happy with our decision to select ASA as our partner and are very satisfied with the perfect work they have done both on mechanics as well as on the optical quality of the 1.40 m telescope that we purchased from them..."

Dr. Gojko Djurasevic
Director of the Astronomical Observatory of Belgrad, 21 February 2018

Read whole statement

ASA Specials


The ASA Derotator (optional) accurately corrects the image field rotation of AltAz mounted telescopes.


ASA Telescopes are equipped with quartz glass optics from ASA (L/8 wavefront Peak to Valley). This makes us to one of the few manufacturers which achieve the surface quality required for diffraction limited performance under best seeing conditions. Read more

Main data  
Focal length 11200 mm
Focal ratio f8
Optical diameter 1400 mm, Ritchey Chrétien design
Field of View 70 mm (standard), 150 mm with flattener (optional)
Mirror material Fused Silica (quartz), ultra low thermal expansion 0.55e-6/°C
Software ASA Software, Windows package and Linux SDK (optional)
custom field corrector  
System Performance  
Pointing accuracy < 8” RMS with pointing model (for altitude 20° to 85°)
Tracking accuracy < 0,25” RMS within 5 minutes (at optimal ambient and sky conditions) over 5 min 0,05” RMS/min
Slewing speed 6°/sec (up to 10°/sec optional)

Technical Details

  • Direct Drive motors
  • All axis with absolute encoder
  • Unguided blind tracking performance
  • Derotator with encoder system
  • Four automatic exchangable Nasmyth-Foci
  • Remote mirror covers M1, M2 and M3
5000 mm Height
7000 kg Weight

seeing is believing.