H. Schwan | Researchain

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Featured researches published by H. Schwan.

Archive | 1988

Fifth fundamental catalogue (FK5). Part 1: The basic fundamental stars

W. Fricke; H. Schwan; T. Lederle; Ulrich Bastian; R. Bien; G. Burkhardt; B. Du Mont; R. Hering; R. Jahrling; Hartmut Jahreiss; S. Roser; H.-M. Schwerdtfeger; H. G. Walter

Astronomy and Astrophysics | 1999

INDICATIONS ON THE BINARY NATURE OF INDIVIDUAL STARS DERIVED FROM A COMPARISON OF THEIR HIPPARCOS PROPER MOTIONS WITH GROUND-BASED DATA. I. BASIC PRIN CIPLES

Roland Wielen; Christian Dettbarn; Hartmut Jahreiss; H. Lenhardt; H. Schwan

Archive | 1993

Improved mean positions and proper motions for the 995 FK4 Sup stars not included in the FK5 Extension.

H. Schwan; Ulrich Bastian; R. Bien; R. Jahrling; Hartmut Jahreiss; S. Roser

Astronomy and Astrophysics | 2001

The combination of ground-based astrometric compilation catalogues with the HIPPARCOS Catalogue - II. Long-term predictions and short-term predictions

Roland Wielen; H. Lenhardt; H. Schwan; Christian Dettbarn

arXiv: Astrophysics | 1998

The Sixth Catalogue of Fundamental Stars (FK6) and the Problem of Double Stars

Roland Wielen; H. Schwan; Christian Dettbarn; Hartmut Jahreiss; H. Lenhardt

Archive | 1991

Fifth fundamental catalogue. Part 2: The FK5 extension - new fundamental stars

W. Fricke; H. Schwan; Thomas E. Corbin; Ulrich Bastian; R. Bien; Charles N. Cole; E. Atlee Jackson; R. Jahrling; Hartmut Jahreiss; T. Lederle; S. Roser

Archive | 1999