J/other/PBeiO/17ivo://CDS.VizieR/J/other/PBeiO/17.120CDSWang R.Lu L.1999-02-25T07:14:53Z1999-02-25T08:14:32ZCDS support team

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

cds-question@unistra.froptical-observationcatalogsOn the photon counter data observed with Photoeleetric Transit Instrument of Beijing Astronomical Observatory during the period from 1988 to 1990, corrections of right ascensions of 324 stars are given. The mean precision (<m_{DELTA}{alpha}cos{delta}_>) is 4.7ms. The mean observational epoch is 1989.7. The relations of residuals with magnitudes and spectral types are discussed and given respectively. Finally the systematic corrections (PPCP4-FK4) are also analysed.1991PBeiO..17..120Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/PBeiO/17.120CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/180 : General GCPA Catalogue (1992)I/181 : Second General Catalogue of stars (GCPA2; Lu 1992)I/182 : Fourth Preliminary Catalogue of Stars (PACP4; Lu 1992)J/A+AS/118/1 : CPASJ1 catalogue (Lu+, 1996)J/other/PBeiO/17.105 : Third preliminary catalogue of stars (PPCP3; Lu 1990)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/PBeiO/17.120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/PBeiO/17.120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/PBeiO/17.120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/PBeiO/17.120https://vizier.iucaa.in/viz-bin/votable?-source=J/other/PBeiO/17.120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/PBeiO/17.120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/PBeiO/17.120/table1 (Fourth preliminary catalogue of stars right ascensions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/PBeiO/17.120/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/PBeiO/17.120/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/PBeiO/17.120/table1?GETtext/xml+votable180.050000true5.2803916737.968644440.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/PBeiO/17.120?format=asciiOpticaldefaultJ/other/PBeiO/17.120/table1Fourth preliminary catalogue of stars right ascensionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPPCP4Serial number of the PPCP4meta.id;meta.mainintFK4/GCFK4 (Cat. <I/15>) or GC <I/113> for PPCP4 >= 232meta.idintVmag? Visual magnitudemagphot.mag;em.opt.Vfloatnullablen_Vmag[V] V for variablemeta.notecharSpTypeSpectral typesrc.spTypecharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.maincorRAPosition correction RA, mean epoch of obs.mspos.eq.ra;arith.difffloate_corRAMean error of corRAmsstat.errorfloatNobsNumber of observationsmeta.numberintEp-1900Mean epoch of observation (yr-1900)yrtime.epochfloat