J/A+AS/123/1ivo://CDS.VizieR/J/A+AS/123/1CDSClement R.Garcia M.Reglero V.Clausen J.V.Bravo A.Suso J.,Fabregat J.Torrejon J.M.Reig P.Marco A.1998-09-05T08:58:37Z1998-09-05T08:57:38ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsvisible-astronomymedium-band-photometryThis paper presents first complete uvby light curves of the late-type detached eclipsing binary ZZ UMa (G0V + G8V, P=2.2993d). This binary system has been observed during eight campaigns at the Calar Alto Observatory (Almeria, Spain) and at the Sierra Nevada Observatory (Granada, Spain). 294 points distributed over the binary period and covering both eclipses are given. The comparison stars used to calculate the differential light curves (SAO 15242 and SAO 15251) were confirmed as being good reference stars with constant flux. These observations are part of a 6 year uvby and H{beta} monitoring program of low mass eclipsing binaries whose main objective is to provide accurate absolute astrophysical parameters for late-type main sequence stars. Details about the standardisation process and accuracy of the photometry are also given. The internal accuracy of the standard photometry measured as the mean RMS of the differences between standard and observed values for the standard stars observed along the program is only a few millimagnitudes. Detailed analysis of ZZ UMa, based on these light curves, will be published separately (Clement et al., 1997, Cat. <J/A+AS/123/59>).1997A&AS..123....1Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/123/1CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/123/59 : uvby photometry of BH Vir (Clement+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/123/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/123/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/123/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/123/1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/123/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/123/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+AS/123/1/table2Standard stars used in the program campaignsNameStar namemeta.id;meta.maincharb-yb-y color indexmagphot.color;em.opt.B;em.opt.VfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCampaignOrder number of one or more of the 16 campaigns carried out inside the observational program, in which the standard star was observedmeta.numbercharNoTotal number of measurementsmeta.numberintymagy magnitudemagphot.mag;em.opt.Vfloate_ymag? rms uncertainty on ymagmagstat.errorfloatnullablee_b-y? rms uncertainty on b-ymagstat.errorfloatnullablem1m1 color indexmagphot.colorfloate_m1? rms uncertainty on m1magstat.errorfloatnullablec1c1 color indexmagphot.colorfloate_c1? rms uncertainty on c1magstat.errorfloatnullablebeta? Hbeta color indexmagphot.colorfloatnullablee_beta? rms uncertainty on betamagstat.errorfloatnullabledymagStandard minus observed values in y (1)magphot.mag;arith.difffloatdb-yStandard minus observed values in b-y (1)magphot.color;arith.difffloatdm1Standard minus observed values in m1 (1)magphot.colorfloatdc1Standard minus observed values in c1 (1)magphot.colorfloatdbeta? Standard minus observed values in Hbeta (1)magphot.mag;arith.difffloatnullableJ/A+AS/123/1/table3Differential magnitudes (ZZ UMa - SAO 15242)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epochdoubleDumagDifferential u magnitudemagphot.mag;arith.difffloatDvmagDifferential v magnitudemagphot.mag;arith.difffloatDbmagDifferential b magnitudemagphot.mag;arith.difffloatDymagDifferential y magnitudemagphot.mag;arith.difffloat