J/A+A/345/471ivo://CDS.VizieR/J/A+A/345/471doi:10.26093/cds/vizier.33450471CDSRobichon N.Arenou F.Mermilliod J.-C.Turon C.2018-01-10T11:48:15Z2002-08-01T21:27:52ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fropen-star-clustersstellar-populationsradial-velocityNew memberships, mean parallaxes and proper motions of all 9 open clusters closer than 300pc (except the Hyades) and 9 rich clusters between 300 and 500pc have been computed using Hipparcos (Cat. <I/239>) data. Precisions, ranging from 0.2 to 0.5mas for parallaxes and 0.1 to 0.5mas/yr for proper motions, are of great interest for calibrating photometric parallaxes as well as for kinematical studies. Careful investigations of possible biases have been performed and no evidence of significant systematic errors on the mean cluster parallaxes has been found. The distances and proper motions of 32 more distant clusters, which may be used statistically, are also indicated.1999A&A...345..471Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/345/471CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/345/471https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/345/471http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/345/471https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/345/471https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/345/471http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/345/471GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/345/471/table1 (Equatorial coordinates (J2000.0) from Lynga (1987, Cat. <VII/92>) and mean radial velocity of the cluster centres)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/345/471/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/345/471/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/345/471/table1?GETtext/xml+votable180.050000true186.2791726.110.0055555555555555566/463 3093 4698 14059 16490 21529 22058 28481 28711 30244 37231 37592 37790 37933 39181 39251 39355 39739https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/345/471?format=asciiOpticaldefaultJ/A+A/345/471/tablea2Hipparcos cluster members used for the calculation of the cluster mean astrometric parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharHIPStar Hipparcos (Cat. <I/239>) numbermeta.idintSimbadSimbad column added by the CDSmeta.refcharJ/A+A/345/471/table1Equatorial coordinates (J2000.0) from Lynga (1987, Cat. <VII/92>) and mean radial velocity of the cluster centresrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id;meta.maincharprimaryn_Cluster[*] Note on Cluster (1)meta.notecharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloatNstarNumber of members used to compute the mean radial velocitymeta.numberintNote[1,2] Note (2)meta.noteintJ/A+A/345/471/tablea1Hipparcos cluster members flagged as multiple stars in HIP (Cat. <I/239>) and not used for the calculation of the cluster mean astrometric parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharH59[COGVX] Double/Multiple Systems flag (1)meta.code.multipcharHIPStar Hipparcos (Cat. <I/239>) numbermeta.idintSimbadSimbad column added by the CDSmeta.refchar