J/A+AS/131/89ivo://CDS.VizieR/J/A+AS/131/89CDSTian K.-P.Zhao J.-L.Shao Zh.-Y.Stetson P.B.1998-09-05T08:52:19Z1998-09-05T08:51:04ZCDS support team

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

cds-question@unistra.fropen-star-clustersproper-motionsThe kinematic state of the open clusters NGC 1750 and NGC 1758 has been studied using newly determined proper motions for 540 stars in a field of 1.5{deg}x1.5{deg} in the Taurus dark cloud region. The proper motions are obtained from the reduction of PDS measurements of 20 plates that span a total time interval of 68 years, resulting in an average proper motion accuracy of 0.67mas/yr. These proper motions are used to determine the membership probabilities of stars in the region by means of a new, improved method described in this paper. Of the 540 stars analyzed here, 332 are found to be probable members of NGC 1750, and 23 are probable members of NGC 1758. The core radii of NGC 1750 and NGC 1758 are determined to be 17.2' and 2.25' respectively.1998A&AS..131...89Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/131/89CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/333/471 : NGC 1750 + NGC 1758 UBVRI photometry (Galadi-Enriquez+ 1998)J/A+AS/131/239 : NGC 1750 + NGC 1758 BVR photometry (Galadi-Enriquez+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/131/89https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/131/89http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/131/89https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/131/89https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/131/89http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/131/89GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/131/89/table5 (Proper motions and membership probabilities of stars in the region of NGC 1750 and NGC 1758)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/131/89/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/131/89/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/131/89/table5?GETtext/xml+votable180.050000true75.840541724.33683330.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/131/89?format=asciiOpticaldefaultJ/A+AS/131/89/table5Proper motions and membership probabilities of stars in the region of NGC 1750 and NGC 1758recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTZS98Sequential numbermeta.idintRA2000Right ascension (2000.0)pos.eq.ra;meta.mainDE2000Declination signpos.eq.dec;meta.mainpmxRelative proper motion in xmas/yrpos.pmfloatpmyRelative proper motion in ymas/yrpos.pmfloate_pmxrms uncertainty on pmxmas/yrstat.errorfloate_pmyrms uncertainty on pmymas/yrstat.errorfloatp1750Probability that star belongs to NGC 1750stat.fit.goodnessfloatp1758Probability that star belongs to NGC 1758stat.fit.goodnessfloatPfieldProbability that star belongs to the fieldstat.fit.goodnessfloatNplateNumber of plate pairs used in the present studymeta.numberint