J/AJ/106/181ivo://CDS.VizieR/J/AJ/106/181doi:10.26093/cds/vizier.51060181CDSMontgomery K.A.Marschall L.A.Janes K.A.2023-04-06T16:50:04Z2004-11-22T16:22:02ZCDS support team

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

cds-question@unistra.fropen-star-clustersccd-photometryinfrared-photometryvisible-astronomybroad-band-photometryastronomical-object-identificationWe present a CCD photometric survey of the central one-half degree of the old open cluster, M67, in U, B, V, and I colors to magnitude V=20. Extensive comparison of our photometry with other published datasets shows excellent agreement, indicating that CCD photometry is capable of producing a uniform set of measurements consistent with the photometric system defined primarily by the Landolt standard sequence. The color-magnitude diagram of the cluster shows a well-defined main sequence extending at least to the limit of the photometry at M(V)=10.55 and a substantial binary sequence. At least 38 percent of cluster stars are binaries. The observations were performed on 3 nights on 15-18 February 1990 with the 1.09m telescope at Kitt Peak National Observatory with a Tektronix 512^2^ CCD camera; a standard KPNO UBVRI filter set was used, with BVR filters being the Harris et, and I the "nearly Mould" filter.1993AJ....106..181Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/106/181CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/123 : UBV Photometry of Faint Stars (V>14.5) in M67 (Frolov+ 1986)V/52 : Photometry and Proper Motions of stars in M67 (Frolov+ 1986)J/A+AS/100/243 : Proper motions in M 67 (Zhao+ 1993)J/AJ/112/628 : Deep Wide-Field Spectrophotometry of M67 (Fan+ 1996)J/BaltA/7/369 : M67 CCD photometry (Boyle+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/106/181https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/106/181http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/106/181https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/106/181https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/106/181http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/106/181GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/106/181/table3 (Photometry in M67)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/106/181/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/106/181/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/106/181/table3?GETtext/xml+votable180.050000true132.396926411.85936390.005555555555555556Cone search capability for table J/AJ/106/181/table4 (Bright stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/106/181/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/106/181/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/106/181/table4?GETtext/xml+votable180.050000true132.396926411.85936390.0055555555555555566/4255 4296 42981.398457827073138e-19 1.7798557115773645e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/106/181?format=asciiOpticalInfrareddefaultJ/AJ/106/181/table3Photometry in M67recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMMJStar number in M67 (Cl* NGC 2682 MMJ in Simbad)meta.id;meta.mainintprimaryn_MMJ[)*] Note as: ) = bright star (see "History" section below) * = star which falls on the photometric binary sequence in the color-magnitude diagrammeta.notecharRA1950Right Ascension 1950pos.eq.ra;meta.mainDE1950Declination 1950pos.eq.dec;meta.mainVmagon Johnson systemmagphot.mag;em.opt.VfloatB-Vcolor indexmagphot.color;em.opt.B;em.opt.VfloatU-B? color indexmagphot.color;em.opt.U;em.opt.BfloatnullableV-R? color indexmagphot.color;em.opt.U;em.opt.BfloatnullableV-I? color index (I is "nearly Mould" filter)magphot.color;em.opt.V;em.opt.Ifloatnullablee_Vmag? Mean error on Vmagstat.error;phot.mag;em.opt.Vfloatnullablee_B-V? Mean error on B-Vmagstat.error;phot.color;em.opt.Bfloatnullablee_U-B? Mean error on U-Bmagstat.error;phot.color;em.opt.Ufloatnullablee_V-R? Mean error on V-Rmagstat.error;phot.color;em.opt.Vfloatnullablee_V-I? Mean error on V-Imagstat.error;phot.color;em.opt.Vfloatnullablee_posMean error on the positionpixstat.errorfloato_VmagNumber of observations on Vmeta.numberinto_B-VNumber of observations on B-Vmeta.numberinto_U-BNumber of observations on U-Bmeta.numberinto_V-RNumber of observations on V-Rmeta.numberinto_V-INumber of observations on V-Imeta.numberintRefsCross-references (1)meta.ref;pos.framechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/106/181/table4Bright starsMMJStar number in M67meta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1950Right Ascension 1950pos.eq.ra;meta.mainDE1950Declination 1950pos.eq.dec;meta.mainVmagon Johnson systemmagphot.mag;em.opt.VfloatB-Vcolor indexmagphot.color;em.opt.B;em.opt.VfloatV-I? color indexmagphot.color;em.opt.V;em.opt.Ifloatnullabler_BVISource of photometry (1)meta.ref;pos.framecharSandersSanders' number (1977A&AS...27...89S)meta.idint_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/106/181/table5Sanders to MMJ cross-identificationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSandersSanders' number (1977A&AS...27...89S)meta.id;meta.maincharMMJnumber as in Table 3meta.id.crossint