The observatory is located on the Assy-Turgen plateau, 2750 meters above sea level, 85 km East from Almaty. It was build by Fesenkov Astrophysical Institute, and observations began to be performed since 1981. By 1991, two telescope towers and hotel facilities were raised, and a 1-meter telescope was launched. By 1990 it was planned to set up a 1.5-meter AZT-20 reflector telescope. The dome and the building were constructed, but since the beginning of 1990s the construction was suspended due to the dissolution of the Soviet Union. In 2015 yr. the process of building was continued. In October 2016 yr. there was first observation via telescope AZT-20. Since 2017 yr. at the regular exploitation.

Basic technical characteristics of AZT-20:

– Main (parabolic) mirror diameter: D = 1560 mm

– Quartz 4-lens focus corrector (reducer): D = 280 mm

– Modified focal length of the telescope: F = 5720 mm

– Allowed diapason of wavelength: λ = 300 – 2500 nm.

– Maximal possible field of view: FOW = 60 х 60 arc minutes

AZT-20 is provided with a slit spectrograph with volume-phase holographic gratings (360 and 2400 lines/mm) and EMCCD-camera Andor. For photometrical tasks, provided by Sloan filters (g’r’i’z’) and back-illuminated CMOS-camera Kepler KL400 (field of view – 15 х 15 arc minutes).

Assy Turgen is the only observatory in Kazakhstan with ideal astroclimate: high transparency of the atmosphere, no light pollution and very small (average) turbulence.

1-m telescope Carl Zeiss is under reconstruction.

(Video courtesy by EPICAM)