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<ri:Resource created="2013-01-07T14:02:55Z" 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>SPM 4.0 Catalog</title><shortName>I/320</shortName><identifier>ivo://CDS.VizieR/I/320</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Girard T.M.</name></creator><creator><name>van Altena W.F.</name></creator><creator><name>Zacharias N.</name></creator><creator><name>Vieira K.</name></creator><creator><name>Casetti-Dinescu D.I.,Castillo D.</name></creator><creator><name>Herrera D.</name></creator><creator><name>Lee Y.S.</name></creator><creator><name>Beers T.C.</name></creator><creator><name>Monet D.G.</name></creator><creator><name>Lopez C.E.</name></creator><date role="Updated">2024-09-25T14:05:28Z</date><date role="Created">2013-01-07T14:02:55Z</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>astrometry</subject><subject>proper-motions</subject><subject>visible-astronomy</subject><subject>photographic-photometry</subject><subject>ccd-photometry</subject><description>The SPM4 Catalog contains absolute proper motions, celestial coordinates, and B,V photometry for 103,319,647 stars and galaxies between the south celestial pole and -20 degrees declination. The catalog is roughly complete to V=17.5. It is based on photographic and CCD observations taken with the Yale Southern Observatory's double-astrograph at Cesco Observatory in El Leoncito, Argentina. The first-epoch survey, taken from 1965 to 1979, was entirely photographic. The second-epoch survey is approximately 1/3 photographic (taken from 1988 to 1998) and 2/3 CCD-based (taken from 2004 through 2008). Full details about the creation of the SPM4.0 catalog can be found in the paper, and also in the document "spm4_doc.txt" file which describes the original files, accessible from http://www.astro.yale.edu/astrom/spm4cat/</description><source format="bibcode">2011AJ....142...15G</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/I/320</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>http://www.astro.yale.edu/astrom/spm4cat/ : SPM Catalog 4 Home Page</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/289">I/289 : UCAC2 Catalogue (Zacharias+ 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/322">I/322 : UCAC4 Catalogue (Zacharias+ 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/II/246">II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VII/233">VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)</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=I/320</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/320</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/320</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL 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