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Information × Registration Number 0201U004988, 0197U003003 , R & D reports Title Celestial reference systems, investigation of their features, mutual orientation; observational maintenance popup.stage_title Head Tel'nyuk-Adamchuk Volodymyr Volodymyrovych, Registration Date 17-05-2001 Organization Taras Shevchenko Kiev University popup.description2 With the purpose of improvement, support and study of features of International celestial reference system ICRS and establishment of connection of various reference systems: sequence of annual precision combined catalogues of the positions of extragalactic radiosources is obtained, catalogue of proper motions of nearpolar 16721 stars to the north of + 74 degrees in declination is compiled, the extended list of radiostars is created, MAC CCD-micrometer is entered into operation. With the purpose of improving of orbital coordinates of the Moon series of observations of occultation of stars by the Moon is carried out. For the determination of the Sun diameter the observations in the eclipse band are performed. Product Description popup.authors popup.nrat_date 2020-04-02 Close