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<ri:Resource created="2005-12-01T17:39:17Z" 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>Precise positions of RR Lyrae Stars with Vmax&gt;12.5</title><shortName>J/A+A/442/381</shortName><identifier>ivo://CDS.VizieR/J/A+A/442/381</identifier><altIdentifier>doi:10.26093/cds/vizier.34420381</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Maintz G.</name></creator><date role="Updated">2017-10-09T13:34:31Z</date><date role="Created">2005-12-01T17:39:17Z</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>variable-stars</subject><subject>astronomical-object-identification</subject><description>RR Lyrae stars are of great importance for investigations of Galactic structure. However, a complete compendium of all RR-Lyraes in the solar neighbourhood with accurate classifications and coordinates does not exist to this day. Here we present a catalogue of 561 local RR-Lyrae stars (V_max_&gt;=12.5mag) according to the magnitudes given in the Combined General Catalogue of Variable Stars (GCVS) and 16 fainter ones. The Tycho2 catalogue contains ~100 RR Lyr stars. However, many objects have inaccurate coordinates in the GCVS, the primary source of variable star information, so that a reliable cross-identification is difficult. We identified RR Lyrae from both catalogues based on an intensive literature search. In dubious cases we carried out photometry of fields to identify the variable. Mennessier &amp; Colome (2002, Cat. &lt;J/A+A/390/173&gt;) have published a paper with Tyc2-GCVS identifications, but we found that many of their identifications are wrong.</description><source format="bibcode">2005A&amp;A...442..381M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/442/381</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/250">II/250 : Combined General Catalogue of Variable Stars (Samus+ 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/239">I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/259">I/259 : The Tycho-2 Catalogue (Hog+ 2000)</relatedResource><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/254">I/254 : The HST Guide Star Catalog, Version 1.2 (Lasker+ 1996)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/247">I/247 : The AC2000 Catalogue (Urban+ 1997)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/275">I/275 : The AC2000.2 Catalogue (Urban+ 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/390/173">J/A+A/390/173 : RR Lyrae GCVS and TYC2 identifiers (Mennessier+, 2002)</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/442/381</accessURL><mirrorURL 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Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Star</name><description>Name of the variable (GCVS)</description><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column><column><name>n_Star</name><description>[*] indicates a note in notes.dat</description><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Cat</name><description>Catalog (H=Hip, T=Tyc2, G=GSC, UA2 = USNO-A2 AC2000, or NN for no catalog)</description><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>Number</name><description>Identification number in given Catalogue</description><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>RA2000</name><description>Right Ascension 2000</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE2000</name><description>Declination 2000</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>Vmag</name><description>? 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Source of first epoch and period</description><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>GCVS</name><description>Details about this variable from GCVS (Cat. II/250)</description><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table><table><name>J/A+A/442/381/notes</name><description>Individual notes</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>Star</name><description>Name of the variable (GCVS)</description><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column><column><name>Note</name><description>text of the note</description><dataType xsi:type="vs:VOTableType" arraysize="70*">char</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table><table><name>J/A+A/442/381/refs</name><description>References</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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