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<ri:Resource created="2004-06-01T21:45:35Z" 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>V and R CCD photometry of visual binaries</title><shortName>J/A+A/416/811</shortName><identifier>ivo://CDS.VizieR/J/A+A/416/811</identifier><altIdentifier>doi:10.26093/cds/vizier.34160811</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Abad C.</name></creator><creator><name>Docobo J.A.</name></creator><creator><name>Lanchares V.</name></creator><creator><name>Lahulla J.F.</name></creator><creator><name>Abelleira P.,Blanco J.</name></creator><creator><name>Alvarez C.</name></creator><date role="Updated">2017-09-22T16:15:54Z</date><date role="Created">2004-06-01T21:45:35Z</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>multiple-stars</subject><subject>ccd-photometry</subject><description>429 CCD measurements of relative positions and magnitude differences in V and R photometric bands for 165 visual double and multiple stars are given. CCD frames were taken at the 1.52m Spanish telescope of the Spanish-German Center of Astronomy at Calar Alto (Almeria, Spain). During the reduction process a "Tepui" function was used as the PSF function.</description><source format="bibcode">2004A&amp;A...416..811A</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/416/811</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/I/252">I/252 : The USNO-A2.0 Catalogue (Monet+ 1998)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/237">I/237 : The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/281">I/281 : WDS 2001.0 (Mason+ 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