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<ri:Resource created="2005-12-20T16:07:06Z" 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>JHK photometry of young clusters near the Sun</title><shortName>J/AJ/126/1916</shortName><identifier>ivo://CDS.VizieR/J/AJ/126/1916</identifier><altIdentifier>doi:10.26093/cds/vizier.51261916</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Porras A.</name></creator><creator><name>Christopher M.</name></creator><creator><name>Allen L.</name></creator><creator><name>Di Francesco J.</name></creator><creator><name>Megeath S.T.,Myers P.C.</name></creator><date role="Updated">2023-04-06T16:50:57Z</date><date role="Created">2005-12-20T16:07:06Z</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>stellar-associations</subject><subject>infrared-photometry</subject><description>We present a catalog of near-infrared surveys of young (&lt;~a few 10^6^yr) stellar groups and clusters within 1kpc from the Sun, based on an extensive search of the literature from the past ten years. We find 143 surveys from 69 published articles, covering 73 different regions. The number distribution of stars in a region has a median of 28 and a mean of 100. About 80% of the stars are in clusters with at least 100 members. By a rough classification of the groups and clusters based on the number of their associated stars, we show that most of the stars form in large clusters. The spatial distribution of catalogued regions in the Galactic plane shows a relative lack of observed stellar groups and clusters in the range 270{deg}&lt;l&lt;60{deg} of Galactic longitude, reflecting our location between the Local and Sagittarius arms. This compilation is intended as a useful resource for future studies of nearby young regions of multiple star formation.</description><source format="bibcode">2003AJ....126.1916P</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/126/1916</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/J/ApJS/94/615">J/ApJS/94/615 : Molecular outflow sources (Hodapp, 1994)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/397/177">J/A+A/397/177 : IR star clusters and stellar groups catalog (Bica+, 2003)</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/AJ/126/1916</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/126/1916</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/126/1916</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/126/1916</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/126/1916</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/126/1916</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><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/AJ/126/1916/table1 (Near-IR Surveys of Young Stellar Groups and Clusters within 1 kiloparsec)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/1916/table1?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/1916/table1?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/1916/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>0.99583</ra><dec>68.57806</dec><sr>0.005555555555555556</sr></testQuery></capability><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/AJ/126/1916/table2 (Young Stellar Groups and Clusters within 1kpc)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/1916/table2?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/1916/table2?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/1916/table2?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>0.99583</ra><dec>68.57806</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/599 862 1113 1231 1539 1591 3057 3061 3071 3198 3759 13050 14029 14040 14621 14696 15409 15630 15667 15671 15673 15681-15684 15759 16191 21400 21403 21425 21428 21430 21436 21439 21456-21458 22805 22854-22855 22866 22873 22876 22911 23637 23646 23717 24158 24189 30251 30363 30366 36953 36956-36957 39248-39249 39251-39252 39258-39259 42614 42981 47741 47828</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/126/1916?format=ascii</footprint><waveband>Infrared</waveband></coverage><tableset><schema><name>default</name><table><name>J/AJ/126/1916/table1</name><description>Near-IR Surveys of Young Stellar Groups and Clusters within 1 kiloparsec</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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J-band quoted completeness limit magnitude</description><unit>mag</unit><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>HLim</name><description>? H-band quoted completeness limit magnitude</description><unit>mag</unit><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>KLim</name><description>? K-band quoted completeness limit magnitude</description><unit>mag</unit><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>n_KLim</name><description>Note on KLim (1)</description><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>r_SNum</name><description>References on SNum, in refs.dat file</description><dataType xsi:type="vs:VOTableType" arraysize="5*">char</dataType></column></table><table><name>J/AJ/126/1916/table2</name><description>Young Stellar Groups and Clusters within 1kpc</description><column><name>Name</name><description>Cluster name</description><dataType xsi:type="vs:VOTableType" arraysize="27*">char</dataType></column><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>GNum</name><description>[1/73] Group or cluster number</description><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>SNum</name><description>Survey identification numbers (.. for interval)</description><dataType xsi:type="vs:VOTableType" arraysize="17*">char</dataType></column><column><name>RAJ2000</name><description>Hour of right ascension (J2000)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>Degree of declination (J2000)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>Dist</name><description>Distance to the group or cluster (1)</description><unit>pc</unit><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>EDist</name><description>? Upper limit on Dist if given</description><unit>pc</unit><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>l_Nst</name><description>Limit flag on NStars</description><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Nst</name><description>? Number of associated stars within the star-forming region (2)</description><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>e_Nst</name><description>? Uncertainty in associated stars</description><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>r_RAh</name><description>References for adopted coordinates, see refs.dat file</description><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType></column><column><name>r_Dist</name><description>References for adopted distance, see refs.dat file</description><dataType xsi:type="vs:VOTableType" arraysize="5*">char</dataType></column><column><name>r_Nst</name><description>References for adopted associated stars, see refs.dat file</description><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType></column></table><table><name>J/AJ/126/1916/refs</name><description>References</description><column><name>Ref</name><description>Reference number</description><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>BibCode</name><description>BibCode</description><dataType xsi:type="vs:VOTableType" arraysize="19*">char</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. 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