J/A+A/542/A43ivo://CDS.VizieR/J/A+A/542/A43doi:10.26093/cds/vizier.35420043CDSSemkov E.H.Peneva S.P.Munari U.Tsvetkov M.K.Jurdana-Sepic R.,de Miguel E.Schwartz R.D.Dimitrov D.P.Kjurkchieva D.P.Radeva V.S.2017-06-12T08:24:27Z2012-06-04T08:25:04ZCDS support team

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

cds-question@unistra.frvariable-starspre-main-sequence-starsccd-photometryinfrared-photometryvisible-astronomybroad-band-photometryWe present new results from optical photometric and spectroscopic observations of the eruptive pre-main sequence star V2493 Cyg (HBC 722). The object has continued to undergo significant brightness variations over the past few months and is an ideal target for follow-up observations.2012A&A...542A..43Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/542/A43CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/542/A43https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/542/A43http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/542/A43https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/542/A43https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/542/A43http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/542/A43GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/A+A/542/A43/table1Photometric CCD observations of V2493 Cyg during the period 1994-2012recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObservation datetime.epoch;obsnullableJDJulian datedtime.epochdoubleImag? I magnitudemagphot.mag;em.opt.IfloatnullableRmag? R magnitudemagphot.mag;em.opt.RfloatnullableVmag? V magnitudemagphot.mag;em.opt.VfloatnullableBmag? B magnitudemagphot.mag;em.opt.BfloatnullableTelTelescope usedphys.size;instr.telcharCCDCCD usedmeta.id;instrcharJ/A+A/542/A43/table3Data from archival photographic observations of V2493 Cyg during the period 1932-1998recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsObservatorymeta.id;instr.obstycharPlatePlate numbermeta.id;instr.platecharDateObservation datetime.epoch;obsnullableJDJulian datedtime.epochdoubleEmulEmulsioninstr.plate.emulsioncharFiltFiltermeta.id;instr.filtercharBand[BVRI pg] Observed bandinstr.bandpasscharl_mag[=>] Limit flag on magmeta.code.errorcharmagMagnitude in Bandmagphot.magfloate_magrms uncertainty on magmagstat.error;phot.magfloat