The construction of a 6 metre polar-viewing telescope has been proposed (Karachentsev and Gajur, 1979), based upon the use of the paraboloidal primary mirror installed originally in the 6m BTA at Zelenchukskaya and later replaced by a mirror of improved performance. The mirror would be mounted with its axis in a fixed orientation pointing to the celestial pole and observations would be made at the prime focus using instrumentation mounted on a pylon. Object tracking is then performed by rotation of the detector around the point which represents the “image” of the celestial pole. In particular, the polar axis may coincide with the optical axis of the system.