J/other/BASI/29.ivo://CDS.VizieR/J/other/BASI/29.53CDSRichtler T.Sagar R.2017-10-18T08:24:58Z2010-08-08T15:46:32ZCDS support team

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

cds-question@unistra.frinfrared-photometryvisible-astronomyWide-band photometryopen-star-clustersWe present new CCD photometry of the distant old open star cluster Berkeley 32 in Johnson V and Cousins I passbands. A total of about 3200 stars have been observed in a field of about 13'x13'. The colour-magnitude diagram (CMD) in V, (V-I) has been generated down to V=22mag. A broad but well defined main sequence is clearly visible. Some blue stragglers, a well developed subgiant branch and a Red Clump are also seen. By fitting isochrones to this CMD as well as to other CMDs available in the literature, and using the Red Clump location, the reddening, distance and age of the star cluster have been determined. The cluster has a distance of about 3.3kpc, its radius is about 2.4pc; the reddening E(B-V) is 0.08 mag and the age is about 6.3Gyr. By comparison with theoretical isochrones, a metallicity of [Fe/H]~-0.2dex has been estimated.2001BASI...29...53Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/BASI/29.53CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AcA/41/167 : UBV photometry in Berkeley 32 (Kaluzny+, 1991)J/PASJ/56/295 : BVIc photometry of old open clusters (Hasegawa+, 2004)J/A+A/480/79 : Abundances of giants in 5 Galactic clusters (Bragaglia+ 2008)J/A+A/496/441 : Radial velocities of Berkeley 32 stars (Randich+ 2009)J/MNRAS/368/471 : Berkeley 32 BVI photometry and spectroscopy (D'Orazi+ 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/BASI/29.53https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/BASI/29.53http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/BASI/29.53https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/BASI/29.53https://vizier.iucaa.in/viz-bin/votable?-source=J/other/BASI/29.53http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/BASI/29.53GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/BASI/29.53/be32 ((VI) photometry in Berkeley 32)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/BASI/29.53/be32?https://vizier.iucaa.in/viz-bin/conesearch/J/other/BASI/29.53/be32?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/BASI/29.53/be32?GETtext/xml+votable180.050000true104.48512866.53004580.0055555555555555566/22237 22239https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/BASI/29.53?format=asciiOpticalInfrareddefaultJ/other/BASI/29.53/be32(VI) photometry in Berkeley 32recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCSimbad column added by the CDSmeta.ref.urlcharSeqRunning numbermeta.id;meta.mainintprimaryXposPixel position (1pix=0.53arcsec) along X axispixpos.cartesian.x;instr.pixelfloatYposPixel position (1pix=0.53arcsec) along Y axispixpos.cartesian.y;instr.pixelfloatVmagJohnson V magnitudemagphot.mag;em.opt.Vfloate_VmagMean error on Vmagmagstat.error;phot.mag;em.opt.Vfloat(V-I)Color index with Cousins Imagphot.color;em.opt.V;em.opt.Ifloate_(V-I)Mean error on (V-I)magstat.errorfloat_RAPosition computed from a comparison with catalog II/246 ({sigma}=0.50'') (right ascension part)degpos.eq.ra;meta.main_DEPosition computed from a comparison with catalog II/246 ({sigma}=0.50'') (declination part)degpos.eq.dec;meta.mainJ/other/BASI/29.53/table6UBVI photometry of candidate giant branch and blue straggler starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintC[RB] Candidate giant (R) or blue straggler (B)meta.notecharSeqStar sequence number, as in "be32.dat"meta.recordintXposPixel position, as in "be32.dat"pixpos.posAng;instr.pixelfloatYposPixel position, as in "be32.dat"pixpos.posAng;instr.pixelfloatRposRadius position from cluster centerpixpos.angDistancefloatVmagJohnson V magnitudemagphot.mag;em.opt.Vfloat(U-B)? (U-B) Johnson colormagphot.color;em.opt.U;em.opt.Bfloatnullable(B-V)? (V-B) Johnson colormagphot.color;em.opt.B;em.opt.Vfloatnullable(V-I)? Johnson-Cousins colormagphot.color;em.opt.V;em.opt.IfloatnullableKM? Number in Kaluzny + Mazur 1991AcA....41..167Kmeta.id.crossintnullableMm[PM] if Probable photometric Membermeta.id.parent;photchar