Abstract During the preparation of the Hipparcos Input Catalogue, about 800 Hipparcos stars remained without reliable positions or with questionable identifications. The Hubble Space Telescope Guide Star Catalogue group at the STScI in Baltimore provided charts (10×10 or 16×16 arcmin) showing all stars in the field down to the limiting magnitude of the GSC (about 15), with in addition the measured positions suitable for the Hipparcos Input Catalogue and a photographic magnitude. The problem was to find the correct object. An extensive quest in the literature yielded some independent finding charts; some had been already plotted at Geneva Observatory from photometric, spectroscopic and kinematic criteria; some were provided by AAVSO, or by some proposers. The two-colour POSS and ESO survey plates provided additional means to identify the mostly red objects (variable stars or nearby dwarfs). Some high-proper motion stars could be identified by comparison with old-epoch positions of the Astrographic Catalogue, and improved proper motions could be derived. GSC magnitudes were adopted for some 40 stars. A couple of stars turned out to be double. 95% of the objects could be found, and the GSC proved to be a very efficient tool.


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    Titel :

    Search of the latest non-astrometric Hipparcos stars in the HST guide-star catalogue


    Beteiligte:
    Crifo, F. (Autor:in) / Grenon, M. (Autor:in) / Jahreiß, H. (Autor:in) / McLean, B. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 11 , 2 ; 137-140


    Erscheinungsdatum :

    01.01.1991


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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