J/A+AS/53/181ivo://CDS.VizieR/J/A+AS/53/181CDSAndersen T.B.Reiz A.2017-12-05T05:10:44Z2011-02-07T14:41:52ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frstellar-associationsastrometryPositions for a total of 3487 stars, scattered over 14 regions, have been determined using the Danish 1.5-m telescope at La Silla. The 14 regions are centred on one of the southern galactic clusters NGC 1981, 2287, 2437, 2451, 2516, 2546, 2547, 2548, 3114, 3532, IC 2391, 2395, 2602 and Trumpler 10. Combining the Ritchey-Chretien reflector optics with a single element Schmidt-type corrector, gives a considerably enlarged flat field (radius about 25 minutes of arc, or 95mm) with stellar images of excellent definition. With the exception of distortion, which can be allowed for, the effect of the primary aberrations is negligible. A frame of reference has been established for each region using ESO Schmidt plates centred on the clusters, each plate containing from 20 to 35 measurable Perth 70 stars. These objects have served for determining positions of some 200 to 400 fainter stars within a central field of 25 minutes of arc radius, covering the corresponding 1.5-m plates. The fainter stars serve as a secondary standard. Based on three 1.5-m plates for each region, taken on different nights, an internal mean error in one plate position in the range 0.030 to 0.048 seconds of arc has been derived.1983A&AS...53..181Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/53/181CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/53/181https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/53/181http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/53/181https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/53/181https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/53/181http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/53/181GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/53/181/table4 (Positions of 3487 stars in 14 southern open clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/53/181/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/53/181/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/53/181/table4?GETtext/xml+votable180.050000true83.36560652-4.50598790.0055555555555555565/5443 9466 6/20796-20797 20799 21523 21526 21529 22805 22807 22848 22850 37230-37231 37349-37351 37586-37587 37592-37593 37787 37790 37809 37812 37933 37938 37944 39181 39183 39192 39250-39251 39257 39354-39355 39371-39372 39374 39696-39697 40681https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/53/181?format=asciiOpticaldefaultJ/A+AS/53/181/table4Positions of 3487 stars in 14 southern open clustersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClCluster namemeta.id.parentcharSeqStar designation in Cluster (<Cl* Cluster AR NNN> in Simbad)meta.id.part;meta.mainintRA1950Right ascension (1950.0)pos.eq.ra;meta.mainDE1950Declination (1950.0)pos.eq.dec;meta.mainCPDCPD (I/108) or Zh (Zurhellen, 1909VeBon..11....1Z) or ZS (Li Khen, 1954, Ann. Obs. Astron. Zo-Se 23, 1) designationmeta.idcharBD/CDBD (I/122) or CD (I/114) designationmeta.idcharAC1? AC1 designation (1)meta.idintnullableu_AC1[?] Uncertainty flag on AC1meta.code.errorcharAC2? AC2 designation (1)meta.idintnullableSimbadSimbad column added by the CDSmeta.refchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed