J/other/ARep/70.ivo://CDS.VizieR/J/other/ARep/70.461CDSVolkova A.S.Volkov I.M.Naroenkov S.A.2026-08-21T12:58:49Z2026-08-21T13:53:45ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsinfrared-photometryvisible-astronomybroad-band-photometryA little-studied eclipsing star with an elliptical orbit, V432 Dra (V=12.23mag, P=11.63 days, e=0.37, F8 V + F8 V) turned out to be a relatively young system with accelerated apsidal rotation. The following absolute parameters of the component stars were obtained for the first time: T1=6240+/-40K, M1=1.13+/-0.05M_{sun}_, R1=1.10+/-0.02R_{sun}_, T2 = 6215+/-40K, M2=1.12+/-0.05M_{sun}_, R2=1.09+/-0.02R_{sun}_. The relativistic contribution to the apsidal rotation is six times greater than the classical effect, but the observed apsidal period Paps = 13060+/-190 yrs is more than three times shorter than the theoretical value. The photometric parallax of pi=0.00197" (d=507pc) is based on the Gaia value. In evolutionary diagrams, the system is near the Zero Age Main Sequence at an age of 700 mln yrs and shows a metal deficiency of [Fe/H]=-0.17.2026ARep....70.461Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/ARep/70.461CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/ARep/70.461https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/ARep/70.461http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/ARep/70.461https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/ARep/70.461https://vizier.iucaa.in/viz-bin/votable?-source=J/other/ARep/70.461http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/ARep/70.461GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/ARep/70.461/frame (Comparisons stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/ARep/70.461/frame?https://vizier.iucaa.in/viz-bin/conesearch/J/other/ARep/70.461/frame?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/ARep/70.461/frame?GETtext/xml+votable180.050000true300.254958361.18133330.0055555555555555566/159001.9821045660507152e-19 6.118840631666147e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/ARep/70.461?format=asciiOpticalInfrareddefaultJ/other/ARep/70.461/frameComparisons starsRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDEJ2000Declination (J2000)pos.eq.dec;meta.mainUmagU magnitudemagphot.mag;em.opt.UfloatBmagB magnitudemagphot.mag;em.opt.BfloatVmagV magnitudemagphot.mag;em.opt.VfloatRmagR magnitudemagphot.mag;em.opt.RfloatImagI magnitudemagphot.mag;em.opt.IfloatU-BU-B colour indexmagphot.color;em.opt.U;em.opt.BfloatB-VU-B colour indexmagphot.color;em.opt.B;em.opt.VfloatV-RV-R colour indexmagphot.color;em.opt.V;em.opt.RfloatR-IR-I colour indexmagphot.color;em.opt.R;em.opt.IfloatV-IV-I colour indexmagphot.color;em.opt.V;em.opt.IfloatGSCGSC namemeta.idchare_UmagU magnitude errormagstat.error;phot.magfloate_BmagB magnitude errormagstat.error;phot.magfloate_VmagV magnitude errormagstat.error;phot.magfloate_RmagR magnitude errormagstat.error;phot.magfloate_ImagI magnitude errormagstat.error;phot.magfloate_U-BU-B colour index errormagstat.error;phot.color;em.opt.Ufloate_B-VB-V colour index errormagstat.error;phot.color;em.opt.Bfloate_V-RV-R colour index errormagstat.error;phot.color;em.opt.Vfloate_R-IR-I colour index errormagstat.error;phot.color;em.opt.Rfloate_V-IV-I colour index errormagstat.error;phot.color;em.opt.VfloatJ/other/ARep/70.461/ubandJohnson U band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloatJ/other/ARep/70.461/bbandJohnson B band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloatJ/other/ARep/70.461/vbandJohnson V band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloatJ/other/ARep/70.461/rbandJohnson R band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloatJ/other/ARep/70.461/rcbandCousins R band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloatJ/other/ARep/70.461/ibandJohnson I band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloatJ/other/ARep/70.461/icbandCousins I band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandObserved band (1)instr.bandpasscharHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (2)magphot.mag;arith.difffloat