Hipparcos Parallax Data May Reconcile Ages of Globular Clusters and the Universe
作者:
Bertram Schwarzschild,
期刊:
Physics Today
(AIP Available online 1997)
卷期:
Volume 50,
issue 9
页码: 19-21
ISSN:0031-9228
年代: 1997
DOI:10.1063/1.881931
出版商: AIP
数据来源: AIP
摘要:
In the summer of 1989, the European Space Agency launched the High Precision Parallax Collecting Satellite—Hipparcos, for short. The name of this first automated astrometry orbiter honors Hipparchus of Nicea, who diligently compiled a catalog of the celestial positions and brightnesses of more than a thousand stars in the second century BC.
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