J/MNRAS/224/61ivo://CDS.VizieR/J/MNRAS/224/61doi:10.26093/cds/vizier.72240061CDSWalker A.R.Laney C.D.1997-12-09T20:32:12Z1997-12-09T21:32:04ZCDS support team

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

cds-question@unistra.fropen-star-clustersvariable-starsccd-photometryA colour magnitude diagram to V=20 is given for 395 stars in the heavily reddened open cluster NGC 6649. The absorption-corrected distance modulus is 11.00+/-0.15mag (1585+/-110pc) assuming R(OB)=3.27+/-0.10 for NGC 6649 and based on a ZAMS with zero point referenced to a Pleiades distance modulus of 5.56mag. The range of reddening over the 5arcmin diameter of the cluster is {DELTA}E(B-V)=0.3mag. NGC 6649 contains the double mode Cepheid V367 Sct, which has <M_V_>=-3.80+/-0.06 and <B_0_>-<V_0_>=0.58+/-0.02.1987MNRAS.224...61Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/224/61CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/224/61https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/224/61http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/224/61https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/224/61https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/224/61http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/224/61GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/MNRAS/224/61/table3Photometry of NGC 6649 starsVmagV magnitudemagphot.mag;em.opt.VfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNoSequential numbermeta.id;meta.mainintDRAOffest in right ascension (1)arcsecpos.eq.ra;arith.diffintDDEOffest in declination (1)arcsecpos.eq.dec;arith.diffintB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatU-B? U-B colour indexmagphot.color;em.opt.U;em.opt.Bfloato_VmagNumber of observation in V magnitudemeta.numberinto_BmagNumber of observation in B magnitudemeta.numberinto_UmagNumber of observation in U magnitudemeta.numberint