J/other/ARep/70.ivo://CDS.VizieR/J/other/ARep/70.40CDSVolkova A.S.Volkov I.M.2026-07-13T14:11:06Z2026-06-23T06:48:04ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsinfrared-photometryvisible-astronomybroad-band-photometryUsing our long-term photometry and TESS data for the little-studied system V491 Vul (V=9.97mag, P=7.67 days, e=0.33, Sp 08 V + 09 V), the following absolute parameters: T1=42300^+1000^_-2000_K, M1=17.6+/-2M_{sun}_, R1=5.7+/-0.2R_{sun}_, T2=32900+/-1000K, M2=14.2+/-1.5M_{sun}_, R2=5.2+/-0.2R_{sun}_, and have been obtained for the first time the apsidal period of Paps=1048+/-11yrs is very close to the theoretical value under the condition of synchronism. The photometric parallax of pi=0.00053" (d=1.89kpc) is somewhat higher than the value of Gaia DR3. The age of the system is estimated at 10 mln yrs.2026ARep....70..40Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/ARep/70.40CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/ARep/70.40https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/ARep/70.40http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/ARep/70.40https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/ARep/70.40https://vizier.iucaa.in/viz-bin/votable?-source=J/other/ARep/70.40http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/ARep/70.40GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/ARep/70.40/frame (Full Table 3 of the paper)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/ARep/70.40/frame?https://vizier.iucaa.in/viz-bin/conesearch/J/other/ARep/70.40/frame?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/ARep/70.40/frame?GETtext/xml+votable180.050000true296.514208324.584250.0055555555555555566/143581.9821045660507152e-19 6.118840631666147e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/ARep/70.40?format=asciiOpticalInfrareddefaultJ/other/ARep/70.40/frameFull Table 3 of the paperGSCGSC namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (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-VB-V 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.Ifloate_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.RfloatJ/other/ARep/70.40/ubandJohnson U band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharJ/other/ARep/70.40/bbandJohnson B band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharJ/other/ARep/70.40/vbandJohnson V band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharJ/other/ARep/70.40/rbandJohnson R band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharJ/other/ARep/70.40/rcbandCousins Rc band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharJ/other/ARep/70.40/ibandJohnson I band photometric observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubledmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharJ/other/ARep/70.40/icbandCousins Ic band photometric observationsdmagDifference of magnitudes between the observation and mean plateau brightness (1)magphot.mag;arith.difffloatBandObserved band (2)instr.bandpasscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdouble