II/320ivo://CDS.VizieR/II/320CDSMaffei P.Tosti G.2019-01-25T15:19:00Z2018-08-28T09:39:02ZCDS support team

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

cds-question@unistra.frvariable-starsopen-star-clustersvisible-astronomyphotographic-photometryThe original work was published as a paper book by the Perugia University in 1999. Before that, only the variable stars list (coordinates, classifications, periods, epochs, magnitude ranges) was published (P. Maffei, 1975IBVS..985....1M) The photographic material was discontinuously collected with the two Schmidt telescopes of the Asiago Observatory and with the Schmidt telescope of the Catania Astrophysical Observatory in the years 1961 to 1991. 103a-O without or with filter GG13 and hypersensitized with NH3 or pre-flashed I-N+RG5 were used. Date, JD, exposure time, emulsion/filter combination and the observer for each plate are listed in Table 1 and Table 2. The variable search was carried out with the blink microscope plate comparator of the Asiago Observatory. Details about the history and the reduction of the observational material are given in the "main.htm" file; the digitization was made by Alessandro Nesci.2013yCat.2320....0Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/II/320CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)http://astrowww.phys.uniroma1.it/nesci/MIRA/All/main.htm : Original atlashttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/320https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/320http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/320https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/320https://vizier.iucaa.in/viz-bin/votable?-source=II/320http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/320GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/320/table3 (Principal elements of the variables in the field of M16-M17)https://vizier.cds.unistra.fr/viz-bin/conesearch/II/320/table3?https://vizier.iucaa.in/viz-bin/conesearch/II/320/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/320/table3?GETtext/xml+votable180.050000true272.52488-15.23280.0055555555555555565/7290 7364 7365 6/29106 29107 29110 29111 29112 29113 29115 29116 29117 29118 29154 29155 29465 29468 29469 29505 29506 29507 29512 29513https://cdsarc.cds.unistra.fr/viz-bin/moc/II/320?format=asciiOpticaldefaultII/320/table3Principal elements of the variables in the field of M16-M17LCobs.fieldcharNameVariable star namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/208]? (empty for previously known stars)meta.idintnullableFCFinding Chartmeta.ref.urlcharRAB1950? Right Ascension B1950pos.eq.ra;meta.mainnullableDEB1950? Declination B1950pos.eq.dec;meta.mainnullablef_bmax[B] specifies that bmax and bmin are also observed in B-bandmeta.codecharbmax? I-band magnitude at maximum brightnessmagphot.mag;em.opt.Ifloatnullablel_bmin[<] indicates bmin is a lower value of magnitudemeta.code.errorcharbmin? I-band magnitude at minimum brightnessmagphot.mag;em.opt.IfloatnullableVtVariable type (includes : for uncertain values)meta.code;src.varcharPer? Perioddtime.periodfloatnullableu_Per[: ] Uncertainty flag on Permeta.code.errorcharT0? Epoch of maximum brightness (JD-2400000)dtime.epochintnullableu_T0[: ] Uncertainty flag on T0meta.code.errorcharNobs? Number of observationsmeta.numberintnullableFC2Finding chart group (upper limit)obs.fieldintnullableFC1Finding chart group (lower limit)obs.fieldintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedII/320/platesList of blue and infrared plates (tables 1 and 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTel[12CJI] Telescope used (1)instr.setupcharIDPlate IDmeta.id;instr.plateintDateObservation datetime.epoch;obsnullableJDObservation date (JD-2400000)dtime.epochdoubletexpExposure timemintime.duration;obs.exposureintEm/FilterPlate, emulsion and filterinstr.plate.emulsion;instr.platecharObsObserver code (2)obs.observercharCinstr.plate.emulsionchar