J/AZh/81/925ivo://CDS.VizieR/J/AZh/81/925CDSBychkova V. S.Kardashev N.S.Vlasyuk V.V.Spiridonova O.I.2005-11-18T19:58:20Z2005-11-18T20:57:11ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiccd-photometryWe monitored five active galactic nuclei in the R optical band with a CCD mounted on the 1-m Zeiss-1000 telescope of the Special Astrophysical Observatory from April 2001 to August 2003. Three sources displayed intraday variability on several nights. Stronger variability was detected on time scales from two days to a week. The two-year light curves are presented for four of the observed objects.2004AZh....81..925Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/81/925CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/106/361 : CCD Photometry of BL Lac objects (Xie+ 1994)VII/158 : Revised and Updated Catalog of QSO (Hewitt+ 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/81/925https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/81/925http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/81/925https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AZh/81/925https://vizier.iucaa.in/viz-bin/votable?-source=J/AZh/81/925http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AZh/81/925GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AZh/81/925/table2Results of the optical monitoringrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namecharDate1Observation date: BeginnullableDate2Observation date: EndnullableHJDHeliocentric Julian datedintNobsNumber of observations per nightintRmaxMaximum R magnitude on each nightmagfloatRminMinimum R magnitude on each nightmagfloate_Rminrms error R magnitudemagfloat