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<ri:Resource created="2013-08-12T11:45:59Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" 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/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch.xsd 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>B stars UBV and SpType catalogue</title><shortName>J/other/ApSS/203</shortName><identifier>ivo://CDS.VizieR/J/other/ApSS/203.53</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Hamdy M.A.</name></creator><creator><name>Abo Elazm M.S.</name></creator><creator><name>Saad S.M.</name></creator><date role="Updated">2017-12-05T05:09:58Z</date><date role="Created">2013-08-12T11:45:59Z</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>b-stars</subject><subject>visible-astronomy</subject><subject>Wide-band photometry</subject><subject>morgan-keenan-classification</subject><description>The present work represents a catalogue of spectral classification and photometric data of 2047 B type stars using the {Delta}Q method.</description><source format="bibcode">1993Ap&amp;SS.203...53H</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/ApSS/203.53</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>IsServedBy</relationshipType><relatedResource>Conesearch service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/II/169">II/169 : Observations in the Geneva Photometric System 4. (Rufener 1988)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/V/50">V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/III/78">III/78 : MK Classification Extension (Kennedy, 1983)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/III/4">III/4 : Bibliography of stellar radial velocities (Abt+, 1972)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/III/30">III/30 : Stellar Rotational Velocities (Bernacca, Perinotto 1970-1973)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/III/21">III/21 : General catalogue of stellar radial velocity (Wilson, 1953)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/III/135">III/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/III/39">III/39 : UV Bright Star Spectrophotometric Catalog (Jamar+, 1976)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/II/86">II/86 : UV Bright-Star Spectrophotometric Supplement (Macau-Hercot+ 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