【摘要】 分析了FK5中不同来源的恒星在平均历元上的全球精度,给出了在不同历元上位置和自行的误差。对不包含在FK5星表内的FK4Sup.星,本文也给出了同样的资料,并讨论了基本天球参考系将来的发展。更多还原

【Abstract】 The global accurac ies of stars with different sources in FKg at the mean epoch are analysed. Errors of positions and proper motions at different epoches are presented. The same data for the FK4 sup stars not included in FK6 arc also given in this paper. The future development of the fundamental celestial reference system is discussed.更多还原