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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=50316
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ColumnValue  Explain   (UCD)
_RAJ200010 18 21.2879856 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+12 37 15.985144 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195010 15 41.9077202 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+12 52 20.677733 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon227.3044843607 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+51.3962538784 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
50316recno 50316  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 50473  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
Comp   Component(s) (Note 1)   (meta.code.multip)
Classes*,PM*,IR  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr    Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000154.58937782 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.60 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+12.62120360 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.46 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 30.90 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.68 mas Standard error on Plx (stat.error;pos.parallax)
pmRA -272.16 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.47 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -39.75 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.41 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)
GLon227.30448542 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat 51.39625504 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 32.34 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 2.2 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon -92.38 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -259.07 mas/yr Proper motion in GLat (pos.pm)
X -13.7 pc Heliocentric distance towards Gal. center (pos.distance)
Y -14.8 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z 25.3 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7414 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 42.2 km/s Transverse velocity (phys.veloc)
SpTypeG0V  Spectral type (MK, HD, or other) (src.spType)
Tc 50   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc5   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 23.06 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.09 km/s Standard error on RV (Note 12)   (stat.error)
q_RVA   [ABCD] Quality flag on RV (Note 13)   (meta.code.qual)
[Fe/H]-0.15 [Sun] Iron abundance (phys.abund.Fe)
e_[Fe/H] 0.02 [Sun] Standard error on [Fe/H] (Note 14)   (stat.error;phys.abund.Fe)
q_[Fe/H]A   [ABC] Quality flag on [Fe/H] (Note 15)   (meta.code.qual;phys.abund.Fe)
age 5.3 Gyr Age, in billions of years (time.age)
b_age 2.4 Gyr Lower confidence limit on age (time.age;stat.fit.param)
B_age 8.0 Gyr Upper confidence limit on age (time.age;stat.fit.param)
U -41.2 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -23.8 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -6.8 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 48.1 km/s Total heliocentric velocity (phys.veloc)
Dmin 28.38 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin -316 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.1483   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi-124.3 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 6948 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 6871 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 1030 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 6795 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin5918 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 7978 pc Orbital radius at apocenter (Note 18)   (pos.distance;src.orbital)
Npl1   Number of exoplanets (known in April 2012) (meta.number)
MplRA  Exoplanet discovery method(s) (Note 19)   (meta.code;obs)

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

Hpmag 7.147 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 7.13 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 7.16 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
HvarD mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag  mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 7.614 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 7.02 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag 6.70 mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 6.400 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 5.891 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.021 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 5.645 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.021 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 5.564 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.026 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS10182131+1237160  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MAAA  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V 0.594 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.003 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 0.66 mag Color index in Cousins' system (phot.color;em.opt.V;em.opt.I)
e_V-I 0.00 mag Standard error on V-I (stat.error;phot.color;em.opt.V)
HpMag 4.598 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 5.07 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 4.47 mag Absolute Magnitude in Johnson V (Note 23)   (phys.magAbs;em.opt.V)
RMag 4.15 mag Absolute Magnitude in R (Note 23)   (phys.magAbs;em.opt.R)
IMag 3.85 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag 3.34 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag 3.10 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag 3.02 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 1.46 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 6.74 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 89307   Henry Draper catalog identifier (meta.id)
CstLeo  Constellation membership (meta.code.member)
Atlas 732  Millennium Star Atlas page number (meta.bib.page)
Coords10184n1262  RA, DE in compact format; n = + ; s = - (meta.id)
Name   Star name(s) (meta.id)
GrpName   Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompID   Reference for Comp (main.dat) (meta.id)
rSpType1969AJ.....74..916H  Reference for SpType (main.dat) (Note 24)   (meta.ref;pos.frame)
r_RV604,577  Reference for RV (main.dat) (meta.ref;pos.frame)
r_[Fe/H]001,028,040  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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