Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985cemec..36..207f&link_type=abstract
Celestial Mechanics (ISSN 0008-8714), vol. 36, July 1985, p. 207-239.
Astronomy and Astrophysics
Astronomy
8
Astrometry, Astronomical Catalogs, Astronomical Coordinates, Histories, Radio Astronomy, Reference Systems
Scientific paper
Presented is a review of the main achievements of fundamental astrometry from earliest times through the present century. The review culminates in the documentation of the observational achievements of the last 25 years where in a world-wide campaign of about 50 observatories considerable contributions have been made to the improvement of the current conventional reference coordinate system given in the Fourth Fundamental Catalogue (FK4). The observations analysed in an ambitious program at Heidelberg will yield the FK5 which will also introduce the System of Astronomical Constants adopted by the IAU in 1976. This report ends with an outlook on contributions of space techniques and of radioastrometry of extragalactic sources to progress in fundamental astrometry.
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