J/MNRAS/470/4285ivo://CDS.VizieR/J/MNRAS/470/4285doi:10.26093/cds/vizier.74704285CDSCarrera R.Rodriguez Espinosa L.Casamiquela L.Balaguer Nunez L.,Jordi C.Allende Prieto C.Stetson P.B.2024-08-17T20:19:57Z2020-06-13T10:23:50ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryradial-velocityWe analyse the poorly studied open cluster King 1 in the second Galactic quadrant. From wide-field photometry, we have studied the spatial distribution of this cluster. We determined that the centre of King 1 is located at {alpha}_2000_=00:22 and {delta}_2000_=+64:23. By parameterizing the stellar density with a King profile, we have obtained a central density of {rho}_0_= 6.5+/-0.2star/arcmin^2^ and a core radius of r_core_=1.9+/-0.2arcmin. By comparing the observed colour-magnitude diagram of King 1 with those of similar open clusters and with different sets of isochrones, we have estimated an age of 2.8+/-0.3Gyr, a distance modulus of (m-M)_o_=10.6+/-0.1mag and a reddening of E(B-V)=0.80+/-0.05mag. To complete our analysis, we acquired medium resolution spectra for 189 stars in the area of King 1. From their derived radial velocities, we determined an average velocity <V_r_>=-53.1+/-3.1km/s. From the strength of the infrared CaII lines in red giants we have determined an average metallicity of <[M/H]>=+0.07+/-0.08dex. From spectral synthesis, we have also estimated an {alpha}-elements abundance of <[{alpha}/M]>=-0.10+/-0.08dex.2017MNRAS.470.4285Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/470/4285CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/470/4285https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/470/4285http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/470/4285https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/470/4285https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/470/4285http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/470/4285GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/470/4285/table1 (Stars observed with AF2)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/470/4285/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/470/4285/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/470/4285/table1?GETtext/xml+votable180.050000true5.5064680664.849243060.0055555555555555566/3062-3063 3068-3069 37468.650015785639275e-20 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/470/4285?format=asciiOpticalInfrareddefaultJ/MNRAS/470/4285/table1Stars observed with AF2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintName2MASS name (2MHHMMSSss+DDMMSSs)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainVmag? V magnitudemagphot.mag;em.opt.VfloatnullableBmag? B magnitudemagphot.mag;em.opt.BfloatnullableImag? I magnitudemagphot.mag;em.opt.IfloatnullableJmag? 2MASS J magnitudemagphot.mag;em.IR.JfloatnullableHmag? 2MASS H magnitudemagphot.mag;em.IR.HfloatnullableKsmag? 2MASS Ks magnitudemagphot.mag;em.IR.KfloatnullableRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVrms uncertainty on RVkm/sstat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlchar