The scheme includes the horizontal telescope in the prime vertical which can rotate around its axis in shoes. The objective extremity is connected with the 45- degrees citall pentag.
Second extremity is connected with the ocular star micrometer.
The star light reflect from diagonal pentag mirror and go to star micrometer. Another beam of light go to star micrometer from mark of longfocal autocollimator in prime vertical through the central hole of pentag. So, it is possible to determine the coordinates of celestial bodies according to position of immovable autocollimator and check the instrumental parameters. Horizontal axial tube located in shoes and coated of insulation against temperature gradients. Tube is connected with CCD star micrometer and pentag.