J/A+A/361/929ivo://CDS.VizieR/J/A+A/361/929doi:10.26093/cds/vizier.33610929CDSMeibom S.2002-05-17T12:15:00Z2002-05-17T12:14:35ZCDS support team

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

cds-question@unistra.fropen-star-clustersccd-photometryvisible-astronomymedium-band-photometryNew accurate CCD photometry in the u, v, b and y bands of the Stroemgren system filters has been obtained for 17640 stars to approximately. V=20mag in a approximately 21' x 21' field centered on the intermediate-age open cluster IC 4651. The observations was obtained with the Danish 1.5-m telescope at the European Southern Observatory, La Silla, Chile. Table 1 contains information about the Date, Night, Filter, Exposure time, Airmass, CCD rotation angle, and RA- , DE-offsets for all 89 frames. Table 2 gives cross-references between the MEI-system (this paper) and the Lindoff (1972A&AS....7..231L, IC 4651 NNN), Eggen (1971ApJ...166...87E, Cl* IC 4651 Egg NN), Anthony-Twarog & Twarog (1987AJ.....94.1222A, Cl* IC 4651 AT 1-NNN, Cl* IC 4651 AT 2-NN), and Anthony-Twarog et al. (1988AJ.....95.1453A, Cl* IC 4651 AMC I-NNN, Cl* IC 4651 AMC NNNN) identification numbers. Table 3 is the final catalogue of the new Stroemgren uvby photometry, ordered by MEI identification number. For each star, it gives the MEI number, Global CCD x- and y-coordinates, J2000 coordinates , the new y, b, v, and u magnitudes on the standard system, number of detections of the individual stars, and their mean errors.2000A&A...361..929Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/361/929CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/299/53 : Red giants in NGC 3680 and IC 4651 (Mermilliod+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/361/929https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/361/929http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/361/929https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/361/929https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/361/929http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/361/929GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/361/929/table3 (ubvy photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/361/929/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/361/929/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/361/929/table3?GETtext/xml+votable180.050000true260.8901667-49.84928610.0055555555555555566/42274https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/361/929?format=asciiOpticaldefaultJ/A+A/361/929/table1Observation log for IC 4651RotCCD rotation angledeginstr.offsetintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFrameFrame identificationobs.fieldcharDateObservation datetime.epochnullableNightNight numbermeta.notecharFilter[ubvy] Filtermeta.code;instr.filtercharExpTimeExposure timestime.duration;obs.exposureintAirmassAirmassobs.airMassfloatoRA{alpha} offsetarcminpos.eq.ra;arith.diffintoDE{delta} offsetarcminpos.eq.dec;arith.diffintJ/A+A/361/929/table2Cross-references between the new numbering system, Meibom 2000 (prefix MEI), and previous identification numbers of the stars in IC 4651recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMEIMeibom number (this paper)meta.idintIC4651? Lindoff (1972A&AS....7..231L) number (1)meta.idintnullableEggen? Eggen (1971ApJ...166...87E) number (1)meta.idintnullableAT? Anthony-Twarog & Twarog (1987AJ.....94.1222A) number (1)meta.idintnullableAMCI? Twarog et al. (1988AJ.....95.1453A) number from CCD photometry (1)meta.idintnullableAMC? Twarog et al. (1988AJ.....95.1453A) number from photographic photometry (1)meta.idintnullableJ/A+A/361/929/table3ubvy photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMEINew stellar ID (prefix MEI)meta.idintprimaryf_MEI[*] indicates correspondances in table2.meta.code.errorcharFlag[0/7] Code indicating type of star (1)meta.codeintXposGlobal CCD x-coordinate (total field)pixpos.cartesian.x;instr.detdoubleYposGlobal CCD y-coordinate (total field)pixpos.cartesian.y;instr.detdoubleRAJ2000Right Ascension J2000 (hour)pos.eq.ra;meta.mainDEJ2000Declination J2000 (degrees)pos.eq.dec;meta.mainymagStroemgren y magnitude of star on standard systemmagphot.mag;em.opt.Vfloato_ymagNumber of detections in the y filtermeta.numberinte_ymagStandard error of the weighted mean y magnitudemagstat.errorfloatbmagStroemgren b magnitude of star on standard systemmagphot.mag;em.opt.Bfloato_bmagNumber of detections in the b filtermeta.numberinte_bmagStandard error of the weighted mean b magnitudemagstat.errorfloatvmagStroemgren v magnitude of star on standard systemmagphot.mag;em.opt.Bfloato_vmagNumber of detections in the v filtermeta.numberinte_vmagStandard error of the weighted mean v magnitudemagstat.errorfloatumagStroemgren u magnitude of star on standard systemmagphot.mag;em.opt.Ufloato_umagNumber of detections in the u filtermeta.numberinte_umagStandard error of the weighted mean u magnitudemagstat.errorfloat