II/118ivo://CDS.VizieR/II/118CDSLandolt A.U.2013-02-26T06:38:15Z1997-12-09T15:42:32ZCDS support team

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

cds-question@unistra.frinfrared-photometryvisible-astronomyWide-band photometrystandard-starsThe catalog contains UBVRI photoelectric observations of 223 stars, mostly in an approximately 2-degree zone centered on the celestial equator. The catalog is intended to provide a uniform set of new standards, available to various sizes of telescopes in both hemispheres, on an internally consistent, homogeneous system. Most of the stars are in Selected Areas 92-115 and fall in the magnitude range of about 7 to 12.5 in V and color range -0.3 to +2.0 in B-V. The data include equatorial coordinates, photoelectric magnitudes and colors, numbers of observations, and computed internal errors. See the complete description by Wayne H. Warren Jr., either in plain ascii (file adc.doc) or in LaTeX format (file adc.tex) Remark: Fainter standards have been observed (Landolt A.U., 1992, AJ 104, 340) and collected as catalogue II/1831983AJ.....88..439Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/II/118CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/118https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/118http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/118https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/118https://vizier.iucaa.in/viz-bin/votable?-source=II/118http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/118GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/118/main (The Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/II/118/main?https://vizier.iucaa.in/viz-bin/conesearch/II/118/main?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/118/main?GETtext/xml+votable180.050000true1.93817-2.547630.0055555555555555566/0 2 16868 16886 17397 17524 17526 17570 17749 17751 17777 17790 17799 17840 17841 17879 18028 18031 18078 18132 18498 18667 18748 18779 18782 18801 18854 18860 18861 19058 19093 19095 19141 19180 19466 19970 21735 21844 21846 21901 21903 21914 21943 22053 22088 22120 22121 22126 22249 22276 22309 22807 22869 22927 22938 22949 22960 23145 23147 23148 23789 25799 25944 25945 25946 25988 26018 26024 26025 26031 26175 26260 26678 26916 26964 26965 27021 27034 27095 27109 27120 27190 27234 27235 27238 27241 27392 27691 29783 29915 30031 30042 30043 30064 30107 30121 30123 30124 30211 30316 30343 30357 30359 30400 30939 31056 31064 31065 31087 31103 31144 31145 31146 31292 31377 31380 31382 31383 31781 31785 36735 36857 40890 40912 49138 49149https://cdsarc.cds.unistra.fr/viz-bin/moc/II/118?format=asciiOpticalInfrareddefaultII/118/mainThe DataNameStar identification (1)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1985Hours RA, Equinox=1985, Epoch=1985pos.eq.ra;meta.mainDE1985Degrees Dec, equinox and epoch 1985.0pos.eq.dec;meta.mainVmagWeighted V magnitude in the UBVRI systemmagphot.mag;em.opt.VfloatB-VWeighted B-V color in the UBVRI systemmagphot.color;em.opt.B;em.opt.VfloatU-BWeighted U-B color in the UBVRI systemmagphot.color;em.opt.U;em.opt.BfloatV-RWeighted V-R color in the UBVRI systemmagphot.color;em.opt.V;em.opt.RfloatR-IWeighted R-I color in the UBVRI systemmagphot.color;em.opt.R;em.opt.IfloatV-IWeighted V-I color in the UBVRI systemmagphot.color;em.opt.V;em.opt.IfloatObsNumber of observations used to compute weighted meansmeta.numberintNightsNumber of nights on which the star was observedmeta.numberinte_VmagMean error of mean V magnitude (2)magstat.error;phot.mag;em.opt.Vfloate_B-VMean error of mean B-V color (2)magstat.error;phot.color;em.opt.Bfloate_U-BMean error of mean U-B color (2)magstat.error;phot.color;em.opt.Ufloate_V-RMean error of mean V-R color (2)magstat.error;phot.color;em.opt.Vfloate_R-IMean error of mean R-I color (2)magstat.error;phot.color;em.opt.Rfloate_V-IMean error of mean V-I color (2)magstat.error;phot.color;em.opt.VfloatNotesNumber(s) of notes (3)meta.notechar_RA.icrsRight ascension (ICRS) at Epoch=J1985. (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J1985. (computed by VizieR, not part of the original data)pos.eq.decnullableindexed