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III/254/crvad2 2nd Cat. of Radial Velocities with Astrometric Data (Kharchenko+, 2007)
The catalogue of radial velocities of galactic stars with high precision astrometric data, the 2nd version (CRVAD-2) (54907 rows)
  recno=12778
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ColumnValue  Explain   (UCD)
_RAJ200005 40 45.5271 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-01 56 33.260 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 38 14.0481 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-01 58 02.963 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon206.4521769 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-16.5851765 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
12778recno 12778  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAdeg085.18969 deg (i) Right Ascension J2000.0, epoch 1991.25 (pos.eq.ra;meta.main)
e_RAdeg 0.6 mas Standard error in RA*cos(DEdeg) (stat.error)
DEJ2000-01.94258 deg (i) Declination J2000.0, epoch 1991.25 (pos.eq.dec;meta.main)
e_DEJ2000 0.1 mas Standard error in DEdeg (stat.error;pos.eq.dec)
Plx 3.99 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.79 mas Standard error in Plx (stat.error;pos.parallax)
pmRA 3.99 mas/yr Proper Motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.74 mas/yr Standard error in pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE 2.52 mas/yr Proper Motion in DE (pos.pm;pos.eq.dec)
e_pmDE 0.40 mas/yr Standard error in pmDE (stat.error;pos.pm;pos.eq.dec)
Bmag 1.798 mag B magnitude in Johnson system (phot.mag;em.opt.B)
e_Bmag 0.005 mag Standard error on B magnitude (stat.error;phot.mag;em.opt.B)
Vmag 1.898 mag V magnitude in Johnson system (phot.mag;em.opt.V)
e_Vmag 0.004 mag Standard error on V magnitude (stat.error;phot.mag;em.opt.V)
Scat 0.008 mag Scatter on magnitude (stat.error)
v1    [GN] Known variability from GCVS/NSV (Note)   (meta.code;src.var)
v2    [UVW] Variability from Tycho-1 (Note)   (meta.code;src.var)
v3D   [CDMPRU] Variability type (Note)   (meta.code;src.var)
v4    [VYIXR] Variability from CMC11 (Note)   (meta.code;src.var)
d12A   [A-S ] CCDM component identifier (Note from Cat. I/274)   (meta.code.multip)
d3A   [A-S] Component identifier (Note)   (meta.code.multip)
d4D   [DRSYZ] Duplicity from Tycho-1 (Note)   (meta.code.multip)
d5C   [CGOVX] Double/Multiple Systems flag (Note)   (meta.code.multip)
d6    [D] Duplicity flag from PPM (meta.code.multip)
SpTypeO9Iab:  MK Spectral type compiled from ASCC-2.5 and GCRV (Note)   (src.spType)
SpType2O9.5 Ib  MK Spectral type from Tycho-2 Spectral Type Catalog (Cat. III/231) (src.spType)
HIP 26727   Hipparcos number (Cat. I/239) (meta.id)
HD 37742   HD number (Cat. III/135) (meta.id)
ASCC 1199002  ASCC-2.5 (Cat. I/280) number (meta.id)
IRVC4   [1/5] Index of Radial Velocity Catalogues (Note)   (meta.ref;pos.frame)
CompA  Components of multiple stars (Note)   (meta.code.multip)
RV 18.50 km/s Radial Velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 1.30 km/s Mean standard error in RV (stat.error)
q_RV    [A-E I] Quality index of the RV from CGRV (Note Cat. III/213)   (meta.code.qual)
o_RV 87   Number of observations (meta.number)
nRV1   [1/3] Number of matches for given IRVC entry (meta.number)

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