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ALT-AZ Telescopes

Equatorial Telescopes

Special Telescopes



Software and Hardware Control Solutions


Driven by passion, ASTELCO products are designed to meet the highest quality standards and guarantee reliable lifetime performance.

Special Telescopes – Customized and on-demand solutions

ASTELCO Special Telescopes can be ordered as well as "standard" astronomical telescopes and will be designed according to the customers requirements and demands.

ASTELCO has manufactured either variants of the classical Alt-Az/Equatorial mount versions or complete special telescope systems, like Coudé Telescopes, Coelostats and Siderostats, LGS (Laser Guide Star) Systems for AO applications, Seeing Measurement Telesopes (DIMM, SLODAR) with enclosure and tower, Solar Telescopes, and Wide-Field Telescope Arrays.

Technical data

EL-EL (Alt-Alt) mount variants,
Coudé paths,
Solar Telescopes with Multi Channel Instrumentation,
Multi OTA Arrays

Aperture sizes from 0.35 to approx. 2m aperture
Optical designs Depending on customer needs – classical Cassegrain or Ritchey-Chrétien with optional correcting units, Flat Mirror Systems for Coelostats/Siderostats, Gregory Systems for Solar Telescopes Customized optical designs possible
Configurations Prime focus, secondary focus or Nasmyth/Coudé configuration with rotating M3 mirror (2 focal ports), field derotators, Wide-Field Multi Optical Tube Arrays
Main bearing Depending on customer needs either hydrostatic or special oil-free roller bearing