J/AJ/134/1890ivo://CDS.VizieR/J/AJ/134/1890doi:10.26093/cds/vizier.51341890CDSClem J.L.Vandenberg D.A.Stetson P.B.2010-03-07T11:24:13Z2010-03-07T12:15:48ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvisible-astronomysloan-photometryphotometric-standard-starsWe present a new set of secondary standard stars for the u'g'r'i'z' photometric system that has been established in selected open and globular star clusters. These standards are calibrated to the original standard system defined by Smith et al. with an accuracy of 1% or better, extend as faint as r'~20, and are concentrated in small regions of the sky. As a result, they can serve as viable calibrators of photometry obtained on some of the large-aperture, high-demand telescopes that employ the u'g'r'i'z' filter set.2007AJ....134.1890Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/134/1890CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/134/1890https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/134/1890http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/134/1890https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/134/1890https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/134/1890http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/134/1890GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/134/1890/table5 (Secondary standards in star clusters NGC 2682, NGC 5272, NGC 6205, NGC 6341, NGC 6791, NGC 6838)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/134/1890/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/134/1890/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/134/1890/table5?GETtext/xml+votable180.050000true132.90587511.83480560.0055555555555555566/4298 9436 9664 9666 10336 10337 12941 12943 14573 14575https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/134/1890?format=asciiOpticaldefaultJ/AJ/134/1890/table5Secondary standards in star clusters NGC 2682, NGC 5272, NGC 6205, NGC 6341, NGC 6791, NGC 6838RAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterGlobular cluster name (1)meta.id.parentcharStarSequential identification number, Cl* NGC NNNN CVS NNNNN in Simbadmeta.id;meta.mainintXposX pixel coordinate (2)pixpos.cartesian.xfloatYposY pixel coordinate (3)pixpos.cartesian.yfloatu'mag? The u' band magnitude (4)magphot.mag;em.opt.Ufloatnullablee_u'mag? Uncertainty in u'mag (4)magstat.error;phot.magfloatnullableo_u'magNumber of measurements in u'magmeta.numberintg'mag? The g' band magnitude (4)magphot.mag;em.opt.Bfloatnullablee_g'mag? Uncertainty in g'mag (4)magstat.error;phot.mag;em.opt.Bfloatnullableo_g'magNumber of measurements in g'magmeta.numberintr'mag? The r' band magnitude (4)magphot.mag;em.opt.Rfloatnullablee_r'mag? Uncertainty in r'mag (4)magstat.error;phot.mag;em.opt.Rfloatnullableo_r'magNumber of measurements in r'magmeta.numberinti'mag? The i' band magnitude (4)magphot.mag;em.opt.Ifloatnullablee_i'mag? Uncertainty in i'mag (4)magstat.error;phot.mag;em.opt.Ifloatnullableo_i'magNumber of measurements in i'magmeta.numberintz'mag? The z' band magnitude (4)magphot.mag;em.opt.Ifloatnullablee_z'mag? Uncertainty in z'mag (4)magstat.error;phot.mag;em.opt.Ifloatnullableo_z'magNumber of measurements in z'magmeta.numberintchiMean value of {chi} image-quality index (5)stat.fit.goodnessfloatsharpMean value of sharp image-quality index (5)src.class.starGalaxyfloatDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.main