Analysis of the optics of the 2.5-m telescope of the Sternberg Astronomical Institute


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The results of alignment and acceptance tests of the optics system of the 2.5-m telescope installed at the Caucausus Mountain Observatory of the Sternberg Astronomical Institute in 2013–2015 are reported. The optical elements of the Ritchey–Chrétien system of the telescope were manufactured by REOSC (France). Measurements of aberrations were carried out using a specially manufactured Shack–Hartmann wavefront sensor. Adjustment of the load-distribution mechanisms of the primary mirror and automatic correction for bending of the structure have made it possible to achieve the target image quality at all operational positions of the telescope, corresponding to 80% of the energy being concentrated in a circle 0.3″ in diameter. Factory interferograms of the mirrors and methods for measuring their abberation using stellar images are presented.

作者简介

S. Potanin

Sternberg Astronomical Institute

编辑信件的主要联系方式.
Email: potanin@sai.msu.ru
俄罗斯联邦, Universitetskii pr. 13, Moscow, 119992

I. Gorbunov

Sternberg Astronomical Institute

Email: potanin@sai.msu.ru
俄罗斯联邦, Universitetskii pr. 13, Moscow, 119992

A. Dodin

Sternberg Astronomical Institute

Email: potanin@sai.msu.ru
俄罗斯联邦, Universitetskii pr. 13, Moscow, 119992

A. Savvin

Sternberg Astronomical Institute

Email: potanin@sai.msu.ru
俄罗斯联邦, Universitetskii pr. 13, Moscow, 119992

B. Safonov

Sternberg Astronomical Institute

Email: potanin@sai.msu.ru
俄罗斯联邦, Universitetskii pr. 13, Moscow, 119992

N. Shatsky

Sternberg Astronomical Institute

Email: potanin@sai.msu.ru
俄罗斯联邦, Universitetskii pr. 13, Moscow, 119992

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