ucac3.mainivo://org.gavo.dc/ucac3/q/mainThe GAVO DC teamGAVO Data Centrehttp://vo.ari.uni-heidelberg.de/docs/GavoTiny.png2009-10-01T00:00:00ZGAVO Data Centre Team

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gavo@ari.uni-heidelberg.de+49 6221 54 1837starssurveysastrometryproper-motionsThe UCAC3 all-sky CCD astrograph catalogue, minus the fields from 2MASS and SuperCosmos and matching/object flags (which can be recovered with a local crossmatch).2010AJ....139.2184Zhttps://dc.g-vo.org/tableinfo/ucac3.mainIsServedByGAVO Data Center TAP servicehttp://dc.g-vo.org/taphttps://dc.g-vo.org/tap0/0-112.649e-19 4.414e-19ucac3The Third US Naval Observatory CCD Astrograph catalogue (UCAC3) is an all-sky catalgoue containing just over 100 million objects covering about R = 8-16 mag. This table contains the original data content of UCAC3 but leaves out the data objetained by crossmatching to other catalogs.ucac3.mainThe UCAC3 all-sky CCD astrograph catalogue, minus the fields from 2MASS and SuperCosmos and matching/object flags (which can be recovered with a local crossmatch).110000000raj2000Right ascension at epoch (ICRS)degpos.eq.ra;meta.main5.55556e-0725.3713241.933338.8623601doubleindexednullabledej2000Declination at epoch (ICRS)degpos.eq.dec;meta.main-89.9367-69.5781-17.27363.644889.76991doubleindexednullablemmagUCAC fit model magnitudemagphot.mag;em.opt3.06712.17715.75516.891181floatnullablemaperUCAC aperture magnitudemagphot.mag;em.opt4.48712.15115.77117.063181floatnullablesigmagUCAC error on magnitude (larger of obs. scatter and model error)magstat.error;phot.mag;em.opt-0.001-0.0010.1180.4590.91floatnullableobjtObject typesrc.classcharnullabledsfDouble star flagmeta.codecharnullablesigras.e. at central epoch in RA (*cos Dec)degstat.error;pos.eq.ra1.38889e-063.88889e-061.44444e-055.47222e-050.0001388891floatnullablesigdcs.e. at central epoch in Decdegstat.error;pos.eq.dec1.38889e-063.88889e-061.38889e-055.22222e-050.0001388891floatnullablena1Total number of CCD images of this starmeta.number11.02.08.0551.0shortnu1Number of CCD images used for this starmeta.number;stat.fit01.02.07.0521.0shortus1Number of catalogs/epochs used for proper motionsmeta.number11.02.04.0311.0shortcn1Number of catalogs/epochs in initial matchmeta.number01.02.04.01131.0shortcepraCentral epoch for mean RAtime.epochcharnullablecepdcCentral epoch for mean Declinationtime.epochcharnullablepmraProper motion in RA, cos(Dec) applieddeg/yrpos.pm;pos.eq.ra-0.000684722-1.11111e-05-6.11111e-079.58333e-060.001879721floatnullablepmdeProper motion in Declinationdeg/yrpos.pm;pos.eq.dec-0.00161472-1.11389e-05-1.11111e-079.13889e-060.0003686111floatnullablesigpmraError in proper motion in RA, cos(Dec) applieddeg/yrstat.error;pos.pm;pos.eq.ra-2.77778e-07-2.77778e-071.83333e-065.58333e-061.38889e-051floatnullablesigpmdeError in proper motion in Declinationdeg/yrstat.error;pos.pm;pos.eq.dec-2.77778e-07-2.77778e-071.75e-065.33333e-061.38889e-051floatnullable