![]() ![]() ![]() The NPM and SPM Contributions to the Hipparcos Proper-Motion Link (I.Check on JPL DExxx using Hipparcos and Tycho Observations (L.V.The Hipparcos Data and Resolving the Problems in the Northern Polar Region (L.G.Future Control of the Hipparcos Frame using MERLIN (L.V.First Steps to Re-Observation of the Hipparcos/Tycho Stars by Ground-Based AMCs (A.CCD Meridian Circle Reductions using Tycho Positions as Reference (Y.A Photometric Calibration of the Guide Star Catalog (C.Some First Experiments on the Photometric Calibration of Schmidt Plates against Tycho (J.E.Tycho Reference Catalogue: Pilot Project Results (A.Comparing the Tycho Catalogue with CCD Astrograph Observations (N.Comparisons of Results from Hipparcos with Ground-Based and Radio Observations (Xu Tongqi et al.).Comparison between the ILS-MD and Hipparcos Catalogues (A.Hipparcos and Ground-Based Proper Motions of NPZT Stars (M.Accurate Ground-Based Parallaxes to Compare with Hipparcos (H.C.An Algorithm for Calculating Frame Rotations and its Application to Hipparcos (H.The Hipparcos Catalogue: a Reference Frame for Earth Orientation in 1899.7-1992.0 (J.Improvement of the Orbits of Asteroids and the Mass of (1) Ceres (B.CPC2 Plate Reductions with Hipparcos Stars: First Results (N.On-Line Services at CDS for Distribution of Hipparcos Data (D.The Hipparcos/Tycho ASCII CD-ROMs and Access Software (H.Some Considerations in Making Full Use of the Hipparcos Catalogue (A.G.A.Contribution of the Main Astronomical Observatory, Ukraine, to the Reference Frame Link (V.S.Comparison of the FK5 Frame to Hipparcos (F.Hipparcos Extragalactic Link: the Potsdam Contribution (S.Determination of the PPN Parameter "gamma" with the Hipparcos Data (M.A Comparative Analysis of Some Statistical Properties of the Hipparcos Catalogue (B.Volume 13: The Atlas of Identification Charts (D.The Hipparcos Solar System Objects Annexes (D.The Tycho Catalogue: Stellar Content (D.The Tycho Catalogue: Astrometry and Photometry (E.The Hipparcos Photometry and Variability Annexes (F.The Hipparcos Catalogue Double and Multiple Systems Annex (L.Connection of the Hipparcos Catalogue to the Extragalactic Reference Frame (J.Astrometric Properties of the Hipparcos Catalogue (F.The Hipparcos Catalogue Contents (M.A.C.The proceedings are reproduced here in pdf format. Session 12: Prospects of Microarcsec Astrometry: the Projects Session 11: Prospects of Microarcsec Astrometry: the Science Session 1: Description of the Hipparcos and Tycho Catalogues The symposium was organised into twelve sessions covering: The symposium had three main aims: to present the Hipparcos and Tycho Catalogues to the scientific community to present the first astrophysical results from the Hipparcos mission and to reflect on possibilities offered by astrometry from space in the future. The Hipparcos Venice '97 Symposium was held in May (13-16) 1997. Presenting the Hipparcos and Tycho Cataloguesįirst astrophysical results of the Hipparcos astrometry mission Proceedings from the Hipparcos Venice '97 symposium ![]()
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