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<ri:Resource created="2003-07-10T13:09:01Z" 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>Hercules Messier 13 (M13) photometry</title><shortName>IV/26</shortName><identifier>ivo://CDS.VizieR/IV/26</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Ludendorff H.</name></creator><date role="Updated">2003-07-10T13:12:24Z</date><date role="Created">2003-07-10T13:09:01Z</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>globular-star-clusters</subject><description>Ludendorff's catalog of the M13 globular cluster results from observations made with the 32.5cm refractor of Potsdam Observatory, one on 17 July 1900 (plate A), and the second on June 1902 (plate B). Each plate was measured twice, in opposite position, to remove the possible errors. The catalog contains accurate positions on both plates, photographic magnitudes, and comparison with the previous results from Scheiner (1892). Number 1119 to 1127 where seen only in one position on plate A, and in two positions on plate B. Number 1128 to 1136 where seen only on plate A, and are not in Scheiner catalog.</description><source format="bibcode">1905POPot..50....1L</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/IV/26</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></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=IV/26</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=IV/26</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=IV/26</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=IV/26</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=IV/26</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=IV/26</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 IV/26/catalog (Catalog of stars in Messier 13)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/IV/26/catalog?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/IV/26/catalog?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/IV/26/catalog?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>250.2833747</ra><dec>36.5048808</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/9436</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/IV/26?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>IV/26/catalog</name><description>Catalog of stars in Messier 13</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>Seq</name><description>[1,1136]+ Sequential number of star in cluster</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>primary</flag><flag>indexed</flag></column><column><name>n_Seq</name><description>[*] indicates a note in notes.dat file</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>ma</name><description>Brightness estimate from Plate A (2)</description><ucd>meta.note;phot</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>n_ma</name><description>[*] when the star is not clearly seen on both plates</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>dm</name><description>? difference (ma-mb+1) between plates (2)</description><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>Xpos</name><description>X mean position (in 5.sin(1arcmin))</description><ucd>pos.cartesian.x;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Ypos</name><description>Y mean position (in 5.sin(1arcmin))</description><ucd>pos.cartesian.y;instr.det</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>dXpos</name><description>? Position difference on 2 plates (A-B)</description><unit>30mas</unit><ucd>pos;arith.diff</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_dXpos</name><description>[)] when star not found on the 2 reductions</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>dYpos</name><description>? Position difference on 2 plates (A-B)</description><unit>30mas</unit><ucd>pos;arith.diff</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_dYpos</name><description>[)] when star not found on the 2 reductions</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>oRA</name><description>Offset in right ascension (min) (1)</description><ucd>pos.eq.ra;arith.diff</ucd></column><column><name>oDE</name><description>Offset in declination (arcmin) (1)</description><ucd>pos.eq.dec;arith.diff</ucd></column><column><name>S</name><description>? Number of the star in Scheiner's (1892)</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>S2</name><description>? when 2 Scheiner's numbers represent the star</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_S</name><description>[)] when Scheiner's star seen on 1 plate only</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>n_S</name><description>[+] disagreement with Scheiner's, in notes2.dat file</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Gr</name><description>? Magnitude assigned in Scheiner's catalog</description><unit>mag</unit><ucd>phot.mag;em.opt</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>dRA</name><description>? Difference in RA Ludendorff - Scheiner</description><unit>arcsec</unit><ucd>pos.eq.ra;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>u_dRA</name><description>[)] disagreement with Scheiner's</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>dDE</name><description>? Difference in DE Ludendorff - Scheiner</description><unit>arcsec</unit><ucd>pos.eq.dec;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>u_dDE</name><description>[)] disagreement with Scheiner's</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>_RA</name><description>J2000 position computed from (Xpos,Ypos) (right ascension part)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>_DE</name><description>J2000 position computed from (Xpos,Ypos) (declination part)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column></table><table><name>IV/26/notes</name><description>Individual notes (in German, english added)</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>Seq</name><description>Sequential number (repeated when several lines)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Note</name><description>Text of the note (English translation added)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="75*">char</dataType></column></table><table><name>IV/26/notes2</name><description>Individual remarks on Scheiner identifications, and Scheiner catalog and charts</description><column><name>Note</name><description>Text of the note</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="66*">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>Seq</name><description>? Sequential number</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>S</name><description>? Scheiner number</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>u_S</name><description>[)] when Scheiner's star seen on 1 plate only</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column></table></schema></tableset></ri:Resource>