J/other/PZ/31.3ivo://CDS.VizieR/J/other/PZ/31.3CDSDenisenko D.V.2017-07-04T07:08:26Z2012-06-05T15:33:01ZCDS support team

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

cds-question@unistra.frvariable-starscataclysmic-variable-starsphotometryI report on the discovery of two cataclysmic variables in the same field in Lyra, originally identified on the base of their magnitudes in the USNO-B1.0 catalog and on Palomar images. The historical light curves were analyzed from 300+ photographic plates of the Moscow collection, covering 35 years of observations. One of the two stars, USNO-B1.0 1320-0390658, is showing rather frequent outbursts from B~20 to B=15.2 and is likely a dwarf nova of the UGSS subtype. The other variable, USNO-B1.0 1321-0397655, with only one observed outburst in 1993, from B~19 to I=11.8, is either an UGWZ dwarf nova or a recurrent nova. In both cases, its next outburst can occur in the nearest future.2011PZ.....31....3Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/PZ/31.3CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/PZ/31.3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/PZ/31.3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/PZ/31.3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/PZ/31.3https://vizier.iucaa.in/viz-bin/votable?-source=J/other/PZ/31.3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/PZ/31.3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/PZ/31.3/dde (*Catalogue of variable stars discovered by Denis Denisenko (DDE) (26/08/2011 version))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/PZ/31.3/dde?https://vizier.iucaa.in/viz-bin/conesearch/J/other/PZ/31.3/dde?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/PZ/31.3/dde?GETtext/xml+votable180.050000true93.21687547.67108330.0055555555555555566/3531 4013 6193 6883 7054 9538 12122 12837 12930 13479 13595 14336 14687 14934 15061 15287 15315 15327 16265 19259 21729 29675 30652 31185 31852 41768 43048https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/PZ/31.3?format=asciiOpticaldefaultJ/other/PZ/31.3/table1Magnitudes of new variables on Sky Survey platesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObservation datetime.epoch;obsnullableBandObserved bandinstr.bandpasscharl_mag20Limit flag on mag20meta.code.errorcharmag20Magnitude of DDE 20magphot.mag;em.optfloatmag21Magnitude of DDE 21magphot.mag;em.optfloatJ/other/PZ/31.3/table2Outbursts of USNO-B1.0 1320-0390658 = DDE 20recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlatePlate numbermeta.id;instr.platecharObsObservation datestime.epoch;obsnullableTExpExposure timemintime.duration;obs.exposureintmagObserved magnitudemagphot.mag;em.optfloatu_maglarge certainty on magmeta.code.errorcharJ/other/PZ/31.3/dde*Catalogue of variable stars discovered by Denis Denisenko (DDE) (26/08/2011 version)NoteNotemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDDE[1/28] DDE sequential numbermeta.id;meta.mainintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainmagMMaximum magnitudemagphot.mag;em.optfloatu_magMUncertainty flag on magMmeta.code.errorcharl_magmLimit flag on magmmeta.code.errorcharmagmMinimum magnitudemagphot.mag;em.optfloatu_magmUncertainty flag on magmmeta.code.errorcharPer? Perioddtime.periodfloatnullableTypeVariability typemeta.notecharConsConstellationmeta.id.partcharUSNO-A2.0USNO-A2.0 designationmeta.id;phys.atmol.configurationcharRmag? R magnitudemagphot.mag;em.opt.RfloatnullableBmag? B magnitudemagphot.mag;em.opt.Bfloatnullable