Hipparcos: Its Link to an Extragalactic Reference Frame
نویسندگان
چکیده
منابع مشابه
The Hipparcos proper motion link to the extragalactic reference system using NPM and SPM ?
We describe the use of the Lick Northern Proper Motion (NPM) program and its southern-sky complement, the Yale/San Juan Southern Proper Motion (SPM) program, to determine the Hipparcos proper motion link to the extragalactic reference system defined by galaxies. In total ∼9,100 Hipparcos stars were chosen for the NPM link solution and ∼4,100 for the SPM solution. The typical accuracy of the NPM...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1991
ISSN: 0252-9211
DOI: 10.1017/s0252921100063570