ONE-IMAGE POZNAN ASTROLABE: PRINCIPLES AND PRACTICE.

Kurzynska K., Gabryszewska A., Baranowski B., Dybczynski P.A.

Poznan Astronomical Observatory, Poznan, Poland

Today, in the post-Hipparcos epoch, the main task for the ground based, fundamental astronomy is to improve the accuracy of the stellar reference frame and to establish better links between stellar, radio and dynamical reference systems. To fulfill contemporary demands new, fully automated, absolute astrometric instruments are needed. We have constructed in Poznan the astrolabe of new type, equiped with a CCD camera, alowing to observe at different zenit distances (currently up to 60 degrees, what makes it possible to observe Solar System objects as well as stars) reaching stars as faint as 9 stellar magnitude. We present results of first, test observations, confirming (among others) the expected magnitude range. The project is in its advanced stage of work and rutine observations should start in near future.