首先回顾了依巴谷卫星的观测结果在天文学上的意义，同时指出其不足之处:极限星 等仅为12mag，自行精度不够高等。介绍了正在进行的各种地面上的暗星扩充计划，如 TAC、SDSS、UCAC--S、POSS等，并对它们的预期目标、观测计划和目前进展情况作了详细描 述。叙述了未来10年可能实施的几个空间天体测量计划，如欧洲空间局的 GAIA、美国喷气推进实验室的SIM、德国的DIVA、美国海军天文台的FAME和俄罗斯普尔科 沃天文台的STRUVE等。重点论述了高精度、高分辨率的天体测量资料在天体物理 学上的应用前景。
Jin Wenjing Tang Zhenghong Wang Shuhe
In this paper, the important influence of the observations of Hipparcos Satellite on Astronomy is described, meanwhile its short disadvantanges are also pointed out: limited magnitude is only 12 mag and the accuracy of proper motions are not high enough. In the second part of this paper, the predictive objectives, observational arrangement and current progress of various ground based observational plans for expanding to faint stars, such as TAC, SDSS, UCAC-S, POSS, are introduced. In the third section, some space astrometric projects, which will probably be carried on in the next decade, such as GAIA of ESA, SIM of US JPL, DIVA of Germany, FAME of US Naval Observatory and STRUVE of Pulkovo, Russia are described. In the last section, the applications of sub-milliarcsecond astrometric data on astrophysics are mentioned.