J/A+A/376/745ivo://CDS.VizieR/J/A+A/376/745doi:10.26093/cds/vizier.33760745CDSPetrov G.Seggewiss W.Dieball A.Kovachev B.2001-09-08T15:09:27Z2001-09-08T15:09:21ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryccd-photometryPhotometric U and I standard sequences in the field of the open cluster NGC 7790 are presented. The intention is to achieve wide ranges in magnitude and colour, making these sequences suitable for calibrating deep CCD photometry. The 84 standard stars extend the BVR sequences of Odewahn et al. (1992PASP..104..553O) to the near UV and IR, respectively.2001A&A...376..745Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/376/745CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/376/745https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/376/745http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/376/745https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/376/745https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/376/745http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/376/745GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/A+A/376/745/table4Magnitudes and errors of all 84 standard starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqStar numbermeta.idintUsmagU magnitude (close to Johnson's U magnitude)magphot.mag;em.opt.Ufloate_UsmagPhotometric error in Umagstat.errorfloatBsmagB magnitude (close to Johnson's B magnitude)magphot.mag;em.opt.Bfloate_BsmagPhotometric error in Bmagstat.errorfloatVsmagV magnitude (close to Johnson's V magnitude)magphot.mag;em.opt.Vfloate_VsmagPhotometric error in Vmagstat.errorfloatRsmagR magnitude (close to Kron/Cousins' R magnitude)magphot.mag;em.opt.Rfloate_RsmagPhotometric error in Rmagstat.errorfloatIsmagI magnitude (close to Kron/Cousins' I magnitude)magphot.mag;em.opt.Ifloate_IsmagPhotometric error in Imagstat.errorfloatd(B)Difference in B (1)magphot.mag;arith.difffloatd(V)Difference in V (1)magphot.mag;arith.difffloatd(R)Difference in R (1)magphot.mag;arith.difffloat