J/MNRAS/349/641ivo://CDS.VizieR/J/MNRAS/349/641doi:10.26093/cds/vizier.73490641CDSPiatti A.E.Claria J.J.Ahumada A.V.2024-06-29T20:14:53Z2004-09-12T20:48:19ZCDS support team

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

cds-question@unistra.fropen-star-clustersccd-photometryinfrared-photometryvisible-astronomyphotometrybroad-band-photometryCCD observations in the Johnson V, Kron-Cousins I and the Washington system C and T_1_ passbands have been used to generate colour-magnitude diagrams (CMDs) reaching down to V~21.0mag and T_1_~19.0 for Trumpler 5, an old open cluster located towards the Galactic anticentre. Our data analysis confirms the existence of non-uniform extinction over the face of the cluster, the mean E(V-I) and E(C-T_1_) values being 0.80+/-0.05 and 1.17+/-0.15, respectively. Through comparison of the cluster CMDs with theoretical isochrones of the Geneva group, Washington Standard Giant Branches and measures of V and T_1_ indices, we derive the following values for the cluster apparent distance modulus, age, and metallicity: V-M_V_=13.80+/-0.30 (corresponding to a distance from the Sun of 2.4+/-0.5 kpc and 0.04kpc above the Galactic plane), t=5.0+/-0.5Gyr and [Fe/H]=-0.30+/-0.15. We estimate the cluster angular radius to be about 7.7 arcmin (=5.4pc) from star counts carried out within and outside the cluster field.2004MNRAS.349..641Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/349/641CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/133/25 : CCD BVI photometry of Trumpler 5 (Kaluzny 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/349/641https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/349/641http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/349/641https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/349/641https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/349/641http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/349/641GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/MNRAS/349/641/table1CCD VI data of stars in the field of Tr 5recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPCASequential number, Cl* Trumpler 5 PCA NNNNmeta.id;meta.mainintXposX position (G1)pixpos.cartesian.x;instr.detdoubleYposY position (G1)pixpos.cartesian.y;instr.detdoubleVmagV magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.errorfloatV-IcV-Ic colour indexmagphot.color;em.opt.V;em.opt.Ifloate_V-Icrms uncertainty on V-Icmagstat.errorfloato_VmagNumber of observationsmeta.numberintJ/MNRAS/349/641/table2CDD T_1_C data of stars in the field of Tr 5recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPCASequential number, Cl* Trumpler 5 PCA NNNNmeta.id;meta.mainintXposX position (G1)pixpos.cartesian.x;instr.detdoubleYposY position (G1)pixpos.cartesian.y;instr.detdoubleT1magT1 magnitudemagphot.mag;em.opt.Rfloate_T1magrms uncertainty on T1magmagstat.errorfloatC-T1C-T1 colour indexmagphot.colorfloate_C-T1rms uncertainty on C-T1magstat.errorfloato_T1magNumber of observationsmeta.numberint