I/225ivo://CDS.VizieR/I/225CDSUrban S.E.Martin J.C.Corbin T.E.1999-01-01T09:06:38Z1998-03-05T22:02:02ZCDS support team

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

cds-question@unistra.frastrographic-catalogscatalogsvisible-astronomyastrometrysurveysastronomical-object-identificationThe U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system of the FK5. The data from the Oxford 2 Zone, whose plates are centered between declinations +32 and +33 degrees (eq. 1900), have been analyzed for scale, rotation, tilt, coma, magnitude equation, radial distortion and distortions introduced by the use of reseaux in the Carte du Ciel program. The result is a positional catalog of over 117,000 stars on eq. J2000.0, epoch of observation. Additionally, all stars have been matched with the Tycho Input Catalog (revised); those numbers have been added for additional identification purposes.U.S. Naval Obs., unpublished (1996)https://cdsarc.cds.unistra.fr/viz-bin/cat/I/225CatalogResearchIsServedByTAP VizieR generic serviceIsPreviousVersionOfI/247|AC2000IsServedByConesearch servicerelated-toI/171 : the Astrographic Catalog Reference Stars (ACRS, Corbin et al., 1991)I/197 : Tycho Input Catalogue, Revised version (TIC, Egret et al., 1992)I/219 : Cape AC Zone (-41 to -51) Reduced to ACRS (Urban & Corbin, 1995)I/222 : San Fernando AC Zone (-3 to -9) Reduced to ACRS (Urban et al., 1995)I/223 : Algiers AC Zone (+04 to -02) Reduced to ACRS (Urban et al., 1995)I/224 : Oxford 1 AC Zone (+25 to +31) Reduced to ACRS (Urban et al., 1996)I/226 : Vatican AC Zone (+55 to +64) Reduced to ACRS (Urban et al., 1996)I/227 : Paris AC Zone (+18 to +24) Reduced to ACRS (Urban et al., 1996)I/228 : Bordeaux AC Zone (+11 to +17) Reduced to ACRS (Urban et al., 1996)I/231 : Uccle AC Zone (+05 to +11) Reduced to ACRS (Urban et al., 1996)I/232 : Toulouse AC Zone (+34 to +35) Reduced to ACRS (Urban et al., 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/225https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/225http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/225https://vizier.cds.unistra.fr/viz-bin/votable?-source=I/225https://vizier.iucaa.in/viz-bin/votable?-source=I/225http://vizieridia.saao.ac.za/viz-bin/votable?-source=I/225GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table I/225/oxf2ac (Oxford 2 AC stars reduced using ACRS)https://vizier.cds.unistra.fr/viz-bin/conesearch/I/225/oxf2ac?https://vizier.iucaa.in/viz-bin/conesearch/I/225/oxf2ac?http://vizieridia.saao.ac.za/viz-bin/conesearch/I/225/oxf2ac?GETtext/xml+votable180.050000true0.0031083331.532166670.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/I/225?format=asciiOpticaldefaultI/225/oxf2acOxford 2 AC stars reduced using ACRSNumNumber of images usedmeta.numberinte_RAs?Standard deviation of mean (RA)arcsecstat.errorfloatnullablee_DEs?Standard deviation of mean (Dec)arcsecstat.errorfloatnullableISN*Internal Star Number IDmeta.id;meta.mainintACRS?ACRS numbermeta.idintnullableTICr?Tycho Input Catalog (rev) numbermeta.idlongnullableNoteID*[1/184]? Note detailed in file notesmeta.noteintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension J2000.0 (hours)pos.eq.ra;meta.mainindexedDEJ2000[+] Declination J2000.0 (sign)pos.eq.dec;meta.mainindexedB(mag)Magnitude from image diametermagphot.mag;em.opt.BfloatEpRAMean epoch of position, RAyrtime.epochdoubleEpDEMean epoch of position, Decyrtime.epochdoubleI/225/notesNotes on the AC/Tycho matchesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNoteID[1/184]+= Number from oxf2ac.dat filemeta.noteintprimaryNoteFootnote for this starmeta.notechar