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astro-ph1998
The combination of ground-based astrometric compilation catalogues with the HIPPARCOS Catalogue I. Single-star mode
R. Wielen, H. Lenhardt, H. Schwan +1
The combination of ground-based astrometric compilation catalogues, such as the FK5 or the GC, with the results of the ESA Astrometric Satellite HIPPARCOS produces for many thousan…
astro-ph1998
The Sixth Catalogue of Fundamental Stars (FK6) and the Problem of Double Stars
R. Wielen, H. Schwan, C. Dettbarn +2
The Sixth Catalogue of Fundamental Stars (FK6) combines the ground-based astrometric data of the basic fundamental stars, obtained over more than two centuries and summarized in th…
astro-ph1998
The Combination of HIPPARCOS Data with Ground-Based Astrometric Measurements
R. Wielen, H. Schwan, C. Dettbarn +2
The combination of HIPPARCOS measurements with suitable ground-based astrometric data improves significantly the accuracy of the proper motions of bright stars. The comparison of b…