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V/137D/XHIP Extended Hipparcos Compilation (XHIP) (Anderson+, 2012)
XHIP catalog: astrometry, spectrography, space motions, exoplanets, photometry, and references (117955 rows)
  recno=21219
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ColumnValue  Explain   (UCD)
_RAJ200004 33 50.9177397 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+14 50 39.924627 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195004 31 00.4487809 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+14 44 27.535225 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon182.0498228384 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-21.6651184314 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
21219recno 21219  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 21273  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompA  Component(s) (Note 1)   (meta.code.multip)
Classes**,*,*iC,V*,IR,UV,SB*  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr1   Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000068.46189690 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.53 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+14.84448748 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.30 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 20.61 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.57 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 103.54 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.57 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -26.32 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.40 mas/yr Standard error on pmDE (stat.error;pos.pm;pos.eq.dec)
r_HIP2   [1/2] Reference for Hipparcos astrometry (Note 4)   (meta.ref;pos.frame)
r_pm3   [1/3] Reference for proper motion (Note 5)   (meta.ref;pos.frame)
GLon182.04982576 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-21.66511833 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 48.48 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 2.8 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 84.25 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 65.68 mas/yr Proper motion in GLat (pos.pm)
X -45.0 pc Heliocentric distance towards Gal. center (pos.distance)
Y -1.6 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -17.9 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7445 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 24.5 km/s Transverse velocity (phys.veloc)
SpTypeA7V  Spectral type (MK, HD, or other) (src.spType)
Tc 37   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc5   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 33.30 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 1.30 km/s Standard error on RV (Note 12)   (stat.error)
q_RVD   [ABCD] Quality flag on RV (Note 13)   (meta.code.qual)
[Fe/H] 0.12 [Sun] Iron abundance (phys.abund.Fe)
e_[Fe/H] 9.99 [Sun] Standard error on [Fe/H] (Note 14)   (stat.error;phys.abund.Fe)
q_[Fe/H]C   [ABC] Quality flag on [Fe/H] (Note 15)   (meta.code.qual;phys.abund.Fe)
age  Gyr Age, in billions of years (time.age)
b_age  Gyr Lower confidence limit on age (time.age;stat.fit.param)
B_age  Gyr Upper confidence limit on age (time.age;stat.fit.param)
U -35.8 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -20.7 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W 1.7 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 41.4 km/s Total heliocentric velocity (phys.veloc)
Dmin 28.76 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin -922 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.1129   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi-116.0 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 7168 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 7123 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 809 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 7077 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin6359 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 7978 pc Orbital radius at apocenter (Note 18)   (pos.distance;src.orbital)
Npl    Number of exoplanets (known in April 2012) (meta.number)
Mpl   Exoplanet discovery method(s) (Note 19)   (meta.code;obs)

SimbadSimbad  ask the Simbad data-base about this object (meta.ref)

Hpmag 4.719 mag Median magnitude in Hipparcos system (phot.mag;em.opt.V)
e_Hpmag 0.001 mag Standard error on Hpmag (stat.error;phot.mag;em.IR.H)
m_Hpmag    [A-Z*-] Reference flag for Hpmag (Note 20)   (meta.code.multip)
Hpmax 4.71 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 4.73 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
HvarC mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag  mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 4.905 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 4.65 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 4.401 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 4.311 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.262 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 4.288 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.228 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 4.074 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.036 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS04335091+1450399  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MDDE  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V 0.255 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.007 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 0.28 mag Color index in Cousins' system (phot.color;em.opt.V;em.opt.I)
e_V-I 0.03 mag Standard error on V-I (stat.error;phot.color;em.opt.V)
HpMag 1.291 mag Absolute Magnitude of Hpmag (Note 23)   (phot.mag;em.IR.H)
UMag  mag Absolute Magnitude in Johnson U (Note 23)   (phot.mag;em.opt.U)
BMag 1.48 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 1.22 mag Absolute Magnitude in Johnson V (Note 23)   (phys.magAbs;em.opt.V)
RMag  mag Absolute Magnitude in R (Note 23)   (phys.magAbs;em.opt.R)
IMag 0.97 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag 0.88 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag 0.86 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag 0.65 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 26.86 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 3.52 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 28910   Henry Draper catalog identifier (meta.id)
CstTau  Constellation membership (meta.code.member)
Atlas 209  Millennium Star Atlas page number (meta.bib.page)
Coords04338n1484  RA, DE in compact format; n = + ; s = - (meta.id)
Name86 Rho Tauri  Star name(s) (meta.id)
GrpNameHyades  Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J04338+1451  Reference for Comp (main.dat) (meta.id)
rSpType1995ApJS...99..135A  Reference for SpType (main.dat) (Note 24)   (meta.ref;pos.frame)
r_RV564  Reference for RV (main.dat) (meta.ref;pos.frame)
r_[Fe/H]201  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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