J/A+A/440/735ivo://CDS.VizieR/J/A+A/440/735doi:10.26093/cds/vizier.34400735CDSJaervinen S.P.Berdyugina S.V.Strassmeier K.G.2017-06-22T14:28:37Z2005-09-18T21:58:11ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryWe analyse photometric observations of the young active dwarf EK Dra, spanning altogether 21 years, and including previously unpublished data. The data in Table 2 was observed at the Fairbourn Observatory in southern Arizona using Amadeus, a 0.75m automatic photoelectric telescope (APT) of the University of Vienna. Amadeus is optimised for red wavelengths with an EMI-9828 tube and Johnson-Cousins V(RI)_C_ filters. Differential V magnitudes are variable (EK Dra) - comparison (HD 129390) and check (HD 129798) - comparison (HD 129390). HD 129390 Vmag=7.5672005A&A...440..735Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/440/735CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/125/11 : UBV + V(RI)c photometry of 23 active stars (Strassmeier+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/440/735https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/440/735http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/440/735https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/440/735https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/440/735http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/440/735GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/440/735/table2The new photometry of EK DrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar designation (EK Dra or HD 129798)charHJDHeliocentric Julian DayddoubleDVmagDifferential V magnitude, Star - HD 129390magfloate_VmagV1 standard error of meanmagfloat