欧洲空间局专门用作空间天体测量的伊巴谷卫星将于1988年上半年发射。
The ESA astrometry satellite HIPPARCOS will be launched in the first part of 1988 or later.
本文分析了依巴谷空间天体测量卫星主探测器析像管和恒星测绘仪的工作缺点；
The defects of main detector, Imange Dissector Tube (IDT), in HIPPARCOS Space Astrometry Satellite are discussed.
讨论有关天体测量中的测光问题，介绍一些地面天体测量仪器和空间天体测量望远镜的测光研究。
The Problem of astrometric photometry is discussed in this paper. The photometric capabilities on both the ground-based astrometric instruments and space telescopes are presented.
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