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<ri:Resource created="1998-02-24T19:13:58Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>Stroemgren photometry of F and G stars</title><shortName>J/A+AS/106/257</shortName><identifier>ivo://CDS.VizieR/J/A+AS/106/257</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>OLSEN E.H.</name></creator><date role="Updated">1998-02-24T18:14:10Z</date><date role="Created">1998-02-24T19:13:58Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>f-stars</subject><subject>photometric-systems</subject><description>(no description available)</description><source format="bibcode">1994A+AS..106..257O</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/106/257</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/106/257</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/106/257</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/106/257</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/106/257</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/106/257</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/106/257</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+AS/106/257/table7</name><description>Catalogue of 110 uvby standards stars</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>HD</name><description>[1/225300]+= HD (Henry Draper) designation</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Mult</name><description>Identification of visual double star components included in the diaphragm</description><ucd>meta.code.multip</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>V</name><description>transformed to the standard Johnson V mag.</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_V</name><description>mean error on V</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>b-y</name><unit>mag</unit><ucd>phot.color;em.opt.B;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_(b-y)</name><description>mean error on (b-y)</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>m1</name><description>= (v-b) - (b-y)</description><unit>mag</unit><ucd>phot.color</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_(m1)</name><description>mean error on m1</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>c1</name><description>= (u-v) - (v-b)</description><unit>mag</unit><ucd>phot.color</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_(c1)</name><description>mean error on c1</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>w_V</name><description>weight of V</description><ucd>stat.weight</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>w_col</name><description>weight of 4-colour indices</description><ucd>stat.weight</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>NN</name><description>Number of nights</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>D(V)</name><description>Difference V(standard) - V(transformed)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>D(b-y)</name><description>Difference (b-y)(st) - (b-y)(tr)</description><unit>mag</unit><ucd>phot.color;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>D(m1)</name><description>Difference m1(st) - m1(tr)</description><unit>mag</unit><ucd>phot.color;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>D(c1)</name><description>Difference c1(st) - c1(tr)</description><unit>mag</unit><ucd>phot.color;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/A+AS/106/257/table9</name><description>The catalogue</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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