Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...388..168d&link_type=abstract
Astronomy and Astrophysics, v.388, p.168-171 (2002)
Astronomy and Astrophysics
Astrophysics
33
Galaxy: Open Clusters And Association: General
Scientific paper
We determined the mean absolute proper motion of 94 open clusters situated farther than 1 kpc from the Sun. The results are derived from the stellar proper motion data given in the Tycho2 Catalogue. The mean proper motion of the clusters and membership probability of individual stars were obtained from the proper motion data by applying the statistical method proposed by Sanders (\cite{Sanders1971}). The measurements made use of a large number of stars, usually several tens, for each cluster. The total number of stars investigated in the fields of the clusters is 4864 of which 2021 were considered members. For 55 clusters, this is the first determination of the proper motion. Based on observations of the ESA Hipparcos satellite. Tables 1 to 95 are 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/cgi-bin/qcat?J/A+A/388/168
Alessi B. S.
Dias Wilton S.
Lépine Jacques R. D.
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