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<ri:Resource created="2003-08-09T18:34:37Z" 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>Angular dimensions of 312 planetary nebulae</title><shortName>J/A+A/405/627</shortName><identifier>ivo://CDS.VizieR/J/A+A/405/627</identifier><altIdentifier>doi:10.26093/cds/vizier.34050627</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Tylenda R.</name></creator><creator><name>Siodmiak N.</name></creator><creator><name>Gorny S.K.</name></creator><creator><name>Corradi R.L.M.</name></creator><creator><name>Schwarz H.E.</name></creator><date role="Updated">2017-12-06T07:38:14Z</date><date role="Created">2003-08-09T18:34:37Z</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>planetary-nebulae</subject><description>We present the results of direct measurements done on H{alpha} (or H{alpha}+[NII]) images of 312 planetary nebulae. For each planetary nebulae deconvolved FWHM and resolution size from Gaussian fit and from second-moment method and direct measurement at 10% level are presented.</description><source format="bibcode">2003A&amp;A...405..627T</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/405/627</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/V/84">V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface 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Deconvolved FWHM from second-moment method</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Phidsmb</name><description>? Deconvolved FWHM from second-moment method</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Phibsma</name><description>? Image resolution from second-moment method</description><unit>arcsec</unit><ucd>pos.angResolution</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Phibsmb</name><description>? Image resolution from second-moment method</description><unit>arcsec</unit><ucd>pos.angResolution</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>lev0.1a</name><description>10%level of the peak surface brightness</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>lev0.1b</name><description>10%level of the peak surface brightness</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>3siga</name><description>? 3sigma emission level above the background</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>3sigb</name><description>? 3sigma emission level above the background</description><unit>arcsec</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>3sigma</name><description>? Percentage of 3sigma level in the peak surface brightness</description><unit>%</unit><ucd>phot.flux.sb;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>PNdata</name><description>Display all parameters for this PN from Cat. V/84</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table><table><name>J/A+A/405/627/table2</name><description>Nebular diameters (in arcsec)</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>PNG</name><description>Planetary Nebula Name (see Cat. 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