Hipparcos astrometry for 257 stars using Tycho-2 data

Details Hipparcos astrometry for 257 stars using Tycho-2 data Hipparcos astrometry for 257 stars using Tycho-2 data

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..144...45f&link_type=abstract

Astronomy and Astrophysics Supplement, v.144, p.45-51

Astronomy and Astrophysics

Astrophysics

21

Astrometry, Catalogs, Stars: Fundamental Parameters, Binaries: Visual

Scientific paper

We present improved Hipparcos astrometry for 257 Hipparcos stars, resolved into 342 components. For 64 of the stars no astrometry was obtained in the Hipparcos Catalogue, while for the remaining stars additional components have been added by this solution or the positions have been revised considerably. We have used the published Hipparcos transit data for the new solutions, together with results from the second reduction of the Tycho data for defining better initial values. Based on observations made with the ESA Hipparcos astrometry satellite. Table 3 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

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