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<ri:Resource created="1997-12-09T18:03:35Z" 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>UBV magnitude of NGC 884 B-type pulsators</title><shortName>J/A+A/325/987</shortName><identifier>ivo://CDS.VizieR/J/A+A/325/987</identifier><altIdentifier>doi:10.26093/cds/vizier.33250987</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Krzesinski J.</name></creator><creator><name>Pigulski A.</name></creator><date role="Updated">1997-12-09T17:03:42Z</date><date role="Created">1997-12-09T18:03:35Z</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>be-stars</subject><subject>visible-astronomy</subject><subject>Wide-band photometry</subject><subject>open-star-clusters</subject><description>We present the results of the photometric CCD search for B-type pulsators in the central region of Chi Persei (NGC 884) open cluster. In addition to the two newly-discovered Beta Cephei stars we found 11 other variables in the observed field. The photometric data for them are given in the file 'bmag' and 'vmag' for B and V-filter data, respectively. In addition, we present the new UBV magnitudes for stars in the observed field. This is Table 4 of the paper, available only in electronic form.</description><source format="bibcode">1997A&amp;A...325..987K</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/325/987</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+A/325/987</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/325/987</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/325/987</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/325/987</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/325/987</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/325/987</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+A/325/987/umag</name><description>U-filter photometry of variable 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>HJD</name><description>Heliocentric Julian day</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Oo2246</name><description>? Differential magnitude for Oo 2246, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2299</name><description>Differential magnitude for Oo 2299, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2088</name><description>Differential magnitude for Oo 2088, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2140</name><description>? Differential magnitude for Oo 2140, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2165</name><description>? Differential magnitude for Oo 2165, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2227</name><description>? Differential magnitude for Oo 2227, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2242</name><description>? Differential magnitude for Oo 2242, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2301</name><description>? Differential magnitude for Oo 2301, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2311</name><description>? Differential magnitude for Oo 2311, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2371</name><description>? Differential magnitude for Oo 2371, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2417</name><description>Differential magnitude for Oo 2417, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/A+A/325/987/bmag</name><description>B-filter photometry of variable 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>HJD</name><description>Heliocentric Julian day</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Oo2246</name><description>? Differential magnitude for Oo 2246, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2299</name><description>Differential magnitude for Oo 2299, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2088</name><description>Differential magnitude for Oo 2088, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2140</name><description>? Differential magnitude for Oo 2140, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2165</name><description>? Differential magnitude for Oo 2165, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2227</name><description>? Differential magnitude for Oo 2227, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2242</name><description>? Differential magnitude for Oo 2242, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2301</name><description>? Differential magnitude for Oo 2301, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2311</name><description>? Differential magnitude for Oo 2311, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2371</name><description>? Differential magnitude for Oo 2371, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2417</name><description>Differential magnitude for Oo 2417, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/A+A/325/987/vmag</name><description>V-filter photometry of variable 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>HJD</name><description>Heliocentric Julian day</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Oo2246</name><description>? Differential magnitude for Oo 2246, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2299</name><description>Differential magnitude for Oo 2299, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2088</name><description>Differential magnitude for Oo 2088, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2140</name><description>? Differential magnitude for Oo 2140, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2165</name><description>? Differential magnitude for Oo 2165, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2227</name><description>? Differential magnitude for Oo 2227, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2242</name><description>? Differential magnitude for Oo 2242, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2301</name><description>? Differential magnitude for Oo 2301, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2311</name><description>? Differential magnitude for Oo 2311, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2371</name><description>? Differential magnitude for Oo 2371, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Oo2417</name><description>Differential magnitude for Oo 2417, (1)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/A+A/325/987/table4</name><description>UBV photometry of stars in the observed field</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>Xpos</name><description>X coordinate of a star (as in Fig.1)</description><unit>pix</unit><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Ypos</name><description>Y coordinate of a star (as in Fig.1)</description><unit>pix</unit><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Name</name><description>Star designation, see Note (1)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>Vmag</name><description>V magnitude, see Note (2)</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>B-V</name><description>B-V colour index, see Note (2)</description><unit>mag</unit><ucd>phot.color;em.opt.B;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>U-B</name><description>? U-B colour index, see Note (2)</description><ucd>phot.color;em.opt.U;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table></schema></tableset></ri:Resource>