I/110ivo://CDS.VizieR/I/110CDSEvans D.S.2026-04-17T13:06:25Z2026-01-20T14:44:21ZCDS support team

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

cds-question@unistra.frmultiple-starsoccultationThis catalog contains data on 224 double stars observed photoelectrically during lunar occultations. The author cites the advantages of this method of double star detection as increased resolution, accuracy of the vector separations of roughly one-half arcsecond or better, and the opportunity to make photometric determinations of the magnitude differences between components. The vector separation is the true separation projected along a line perpendicular to the actual lunar limb. The catalog is a compilation of twelve years of observations from the literature (through roughly 1980). It is divided into three files. The first file, data1.dat, contains information on stars brighter than visual magnitude 6.7. The second, data2.dat, lists SAO catalog stars fainter than magnitude 6.7. The third file, data3.dat, contains data on faint stars with no SAO number. For these stars, data on their magnitudes or spectral types may be absent. In many cases there are multiple records per star, reflecting separate observations. The records are arranged by SAO number or other identifier, and contain visual magnitudes, spectral type, observing run number, a subjective grade of the probability of being double, the vector separation with computed error, position angle, and the lunar limb slope and its error. It also includes the magnitude difference between the components in (somewhat arbitrarily assigned) blue and red band passes. In the case of a triple star, the run number is repeated and the data for the triple given with magnitude differences from the brightest star.1983LowOB...9...73Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/I/110CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/110https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/110http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/110https://vizier.cds.unistra.fr/viz-bin/votable?-source=I/110https://vizier.iucaa.in/viz-bin/votable?-source=I/110http://vizieridia.saao.ac.za/viz-bin/votable?-source=I/110GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultI/110/data1m(v) <= 6.7recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSAO?SAO Numbermeta.id;meta.mainintnullableNAME?Other Name for Starmeta.idcharMAG?Magnitudemagphot.magfloatnullableSp?Spectral Typesrc.spTypecharRUN?Run Number of the Observationmeta.numbercharDAY?Observation Date Daytime.epoch;obsintnullableMONTH?Observation Date Monthtime.epoch;obsintnullableYEAR?Observation Date Yeartime.epoch;obsintnullableG?Grademeta.noteintnullablen_G?Remark on Gmeta.notecharSEP?Vector Separationmarcsecpos.angDistancefloatnullablee_SEP?Computed Error of Vector Separationmarcsecstat.errorfloatnullablen_SEP?Remark on SEP (see note on n_G)meta.notecharPA?Position Angledegpos.posAngintnullablen_PA?Remark on PA (see note on n_G)meta.notecharSL?Limb Slopearith.gradintnullablen_SL?Remark on SL (see note on n_G)meta.notechare_SL?Error of SLstat.errorintnullabledB?Blue Differential Magnitudemagphot.mag;arith.difffloatnullablee_dB?Error of dBmagstat.errorfloatnullablen_dB?Remark on dBmeta.notechardR?Red Differential Magnitudemagphot.mag;arith.difffloatnullablee_dR?Error of dRmagstat.errorfloatnullablen_dR?Remark on dR (see note on n_dB)meta.notecharI/110/data2SAO m(v) > 6.7recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSAO?SAO NumberintnullableSAOsuf?SAO SuffixcharNAME?Other Name for StarcharMAG?MagnitudemagfloatnullableSp?Spectral TypecharRUN?Run Number of the ObservationcharDAY?Observation Date DayintnullableMONTH?Observation Date MonthintnullableYEAR?Observation Date YearintnullableG?Gradeintnullablen_G?Remark on GcharSEP?Vector Separationmarcsecfloatnullablee_SEP?Computed Error of Vector Separationmarcsecfloatnullablen_SEP?Remark on SEP (see note on n_G)charPA?Position Angledegintnullablen_PA?Remark on PA (see note on n_G)charSL?Limb Slopeintnullablen_SL?Remark on SL (see note on n_G)chare_SL?Error of SLintnullabledB?Blue Differential Magnitudemagfloatnullablee_dB?Error of dBmagfloatnullablen_dB?Remark on dBchardR?Red Differential Magnitudemagfloatnullablee_dR?Error of dRmagfloatnullablen_dR?Remark on dR (see note on n_dB)charI/110/data3Faint Non-SAOn_PA?Remark on PA (see note on n_G)charrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDM?DM NumberdoublenullableMAG?MagnitudemagfloatnullableSp?Spectral TypecharDAY?Observation Date DayintnullableMONTH?Observation Date MonthintnullableYEAR?Observation Date YearintnullableG?GradeintnullableSEP?Vector Separationmarcsecfloatnullablee_SEP?Computed Error of Vector SeparationmarcsecfloatnullablePA?Position Angledegintnullablen_G?Remark on GcharSL?Limb Slopeintnullablen_SL?Remark on SL (see note on n_G)chare_SL?Error of SLintnullabledB?Blue Differential Magnitudemagfloatnullablee_dB?Error of dBmagfloatnullablen_dB?Remark on dBchardR?Red Differential Magnitudemagfloatnullablee_dR?Error of dRmagfloatnullablen_dR?Remark on dR (see note on n_dB)charNAME?Other Name for StarcharRUNRun Number of the Observationcharn_SEP?Remark on SEP (see note on n_G)char