Аннотация:The Tycho Reference Catalogue (TRC) project is aimed at the derivation of highly accurate proper motions of about 1000000 stars observed within the Tycho experiment on board the ESA Hipparcos satellite. The unprecedented number of high-quality proper motions is due to the combination of the precise modern-epoch Tycho positions with the century-old Astrographic Catalogue data. Results of the pilot TRC project, presented here, show that final TRC could yield almost Hipparcos quality proper motions for practically all Tycho Catalogue stars.
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