J/A+A/361/945ivo://CDS.VizieR/J/A+A/361/945doi:10.26093/cds/vizier.33610945CDSLapasset E.Claria J.J.Mermilliod J.-C.2014-12-05T13:48:01Z2000-10-18T18:06:49ZCDS support team

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

cds-question@unistra.frWe present UBV photoelectric observations of 345 stars in the field of the southern open cluster NGC 2539. The analysis of these data allows to determine that 169 stars are probable members of the cluster main sequence, while 23 are possible members.2000A&A...361..945Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/361/945CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://obswww.unige.ch/webda/cgi-bin/ocl_page.cgi?cluster=ngc2539 : thehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/361/945https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/361/945http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/361/945https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/361/945https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/361/945http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/361/945GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/361/945/table1 (UBV photoelectric data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/361/945/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/361/945/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/361/945/table1?GETtext/xml+votable180.050000true122.712-12.85758530.0055555555555555566/40690 406963.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/361/945?format=asciiOpticaldefaultJ/A+A/361/945/table1UBV photoelectric dataID[101/675] Star numbermeta.id;meta.mainintprimaryBDA[1/318]? Star number in the WEBDA databasemeta.idintnullableXpos? Rectangular position (1)pixpos.cartesian.x;instr.detintnullableYpos? Rectangular position (1)pixpos.cartesian.y;instr.detintnullableVmag[9.0/15.7]V magnitudemagphot.mag;em.opt.Vfloato_Vmag[1/5] Number of measurementsmeta.numberintB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatU-B? U-B colour indexmagphot.color;em.opt.U;em.opt.Bfloatnullable_RAPosition computed from a comparison with 2MASS (II/246) ({sigma}=0.78'') (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition computed from a comparison with 2MASS (II/246) ({sigma}=0.78'') (declination part)degpos.eq.dec;meta.mainnullable