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<ri:Resource created="2019-04-25T14:59:47Z" 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>Speckle interferometry at the USNO. XXIII.</title><shortName>J/AJ/156/240</shortName><identifier>ivo://CDS.VizieR/J/AJ/156/240</identifier><altIdentifier>doi:10.26093/cds/vizier.51560240</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Mason B.D.</name></creator><creator><name>Hartkopf W.I.</name></creator><creator><name>Urban S.E.</name></creator><creator><name>Josties J.D.</name></creator><date role="Updated">2019-05-07T11:53:31Z</date><date role="Created">2019-04-25T14:59:47Z</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>multiple-stars</subject><subject>interferometry</subject><description>The results of 3989 intensified CCD observations of double stars, made with the 26-inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system represents a combination of over 2000 short-exposure images. These observations are averaged into 1911 mean relative positions and range in separation from 0.289" to 128.638", with a median separation of 8.669". Four orbits are improved. This is the 23rd in this series of papers and covers the period 2017 January 4 through 2017 September 13.</description><source format="bibcode">2018AJ....156..240M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/156/240</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/B/wds">B/wds : The Washington Visual Double Star Catalog</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/105/503">J/A+AS/105/503 : Binary star speckle measurements (Balega+ 1994)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/117/1905">J/AJ/117/1905 : Speckle interferometry at USNO. II. (Germain+, 1999)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/117/2511">J/AJ/117/2511 : Speckle interferometry at USNO. III (Germain+, 1999)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/118/1395">J/AJ/118/1395 : Speckle interferometry at USNO. IV. (Douglass+, 1999)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/119/3071">J/AJ/119/3071 : Speckle interferometry at USNO. V. (Douglass+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/119/3084">J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII.</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/120/1120">J/AJ/120/1120 : Speckle interferometry at USNO. VI. (Mason+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/120/2638">J/AJ/120/2638 : CCD speckle obs. of binary stars. II. (Horch+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/122/1586">J/AJ/122/1586 : Speckle interferometry at USNO. VII. (Mason+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/124/2254">J/AJ/124/2254 : Speckle interferometry at USNO. VIII. (Mason+, 2002)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/422/627">J/A+A/422/627 : Nearby multiple stars speckle interferometry</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/127/539">J/AJ/127/539 : Speckle interferometry at USNO. IX. (Mason+, 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/128/3012">J/AJ/128/3012 : Speckle interferometry at USNO. X. (Mason+, 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/131/2687">J/AJ/131/2687 : Speckle interferometry at USNO. XI (Mason+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/132/2219">J/AJ/132/2219 : Speckle interferometry at USNO. XII (Mason+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/134/1671">J/AJ/134/1671 : Speckle interferometry at USNO. XIII (Mason+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/135/1334">J/AJ/135/1334 : Speckle interferometry at the USNO station</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/136/2223">J/AJ/136/2223 : Speckle interferometry at USNO. XIV (Mason+, 2008)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/138/813">J/AJ/138/813 : Speckle interferometry at Mount Wilson Obs.</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/140/480">J/AJ/140/480 : Speckle interferometry at USNO. XV. (Mason+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/141/157">J/AJ/141/157 : Speckle interferometry at USNO. XVI. (Mason+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/142/46">J/AJ/142/46 : Speckle interferometry at USNO. XVII. (Mason+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/142/56">J/AJ/142/56 : Speckle interferometry at the USNO station</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/other/RMxAA/48.177">J/other/RMxAA/48.177 : Speckle interferometry of binaries (Orlov+, 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/other/AstBu/68.53">J/other/AstBu/68.53 : Nearby multiple Speckle interferometry. V.</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/152/138">J/AJ/152/138 : Orbits based on speckle interferometry at SOAR</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/154/183">J/AJ/154/183 : Speckle interferometry at the USNO. XXII. 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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>WDS</name><description>WDS designation (HHMMm+DDMM, J2000)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column><column><name>Disc</name><description>Discoverer designation</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="7*">char</dataType></column><column><name>Comp</name><description>Measured components of multiple system</description><ucd>meta.code.multip</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>Epoch</name><description>[2016.86/2017.702]? Epoch of observation</description><unit>yr</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>PA</name><description>[0/359.7]? 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Number of observations contained in the mean</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>_RA</name><description>Position from the WDS Catalog (Cat. B/wds) (right ascension part)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>_DE</name><description>Position from the WDS Catalog (Cat. B/wds) (declination part)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column></table><table><name>J/AJ/156/240/table4</name><description>ICCD measurements of double stars with orbit and linear residuals</description><column><name>Sep</name><description>[0.289/128.638]? Separation</description><unit>arcsec</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></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>WDS</name><description>WDS designation (HHMMm+DDMM, J2000)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column><column><name>Disc</name><description>Discoverer designation</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="7*">char</dataType></column><column><name>Comp</name><description>Measured components of multiple system</description><ucd>meta.code.multip</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>Epoch</name><description>[2016.86/2017.702]? Epoch of observation</description><unit>yr</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>PA</name><description>[0/359.7]? Position angle</description><unit>deg</unit><ucd>pos.posAng</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_PA</name><description>[0/2.5]? Uncertainty in PA</description><unit>deg</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Sep</name><description>[0/0.566]? Uncertainty in Sep</description><unit>arcsec</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Nobs</name><description>[1/5]? Number of observations contained in the mean</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>(O-C)PA</name><description>[-4.8/37.9]? Position angle (O-C) residual (only in Table 4)</description><unit>deg</unit><ucd>stat.fit.residual</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>(O-C)Sep</name><description>[-1.464/0.267]? Separation (O-C) residual (only in Table 4)</description><unit>arcsec</unit><ucd>stat.fit.residual</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Ref</name><description>Reference (only in Table 4)</description><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType" arraysize="26*">char</dataType></column><column><name>Bibcode</name><description>Bibcode (or website) of the reference (only in Table 4)</description><ucd>meta.bib.bibcode</ucd><dataType xsi:type="vs:VOTableType" arraysize="37*">char</dataType></column><column><name>Note</name><description>Object note(s) (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="5*">char</dataType></column><column><name>_RA</name><description>Position from the WDS Catalog (Cat. B/wds) (right ascension part)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><flag>nullable</flag></column><column><name>_DE</name><description>Position from the WDS Catalog (Cat. B/wds) (declination part)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column></table></schema></tableset></ri:Resource>