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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=19991
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ColumnValue  Explain   (UCD)
_RAJ200004 17 53.6624069 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-33 47 54.056894 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195004 16 00.0474024 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-33 55 09.472147 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon234.6749118136 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-45.4712560484 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
19991recno 19991  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 20042  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompAB  Component(s) (Note 1)   (meta.code.multip)
Classes**,SB*,*,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr1   Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000064.47341050 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.10 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000-33.79833154 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.13 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 18.33 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.15 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 62.52 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.11 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -7.24 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.16 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_pm1   [1/3] Reference for proper motion (Note 5)   (meta.ref;pos.frame)
GLon234.67491499 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-45.47125477 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 54.55 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 0.8 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 13.58 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 61.46 mas/yr Proper motion in GLat (pos.pm)
X -22.1 pc Heliocentric distance towards Gal. center (pos.distance)
Y -31.2 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -38.9 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7422 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 16.3 km/s Transverse velocity (phys.veloc)
SpTypeB6V  Spectral type (MK, HD, or other) (src.spType)
Tc 26   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc5   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 17.80 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 2.70 km/s Standard error on RV (Note 12)   (stat.error)
q_RVD   [ABCD] Quality flag on RV (Note 13)   (meta.code.qual)
[Fe/H]  [Sun] Iron abundance (phys.abund.Fe)
e_[Fe/H]  [Sun] Standard error on [Fe/H] (Note 14)   (stat.error;phys.abund.Fe)
q_[Fe/H]    [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 -10.9 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -21.5 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -1.5 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 24.1 km/s Total heliocentric velocity (phys.veloc)
Dmin 36.81 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin-1632 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.0634   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 163.6 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 6999 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 6985 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 443 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 6971 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin6556 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 7443 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 3.517 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 3.51 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 3.52 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
HvarM mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag  mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 3.442 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 3.55 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 3.626 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag  mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag  mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag  mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag  mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag  mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag  mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS   2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2M   JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V-0.108 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.002 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I-0.09 mag Color index in Cousins' system (phot.color;em.opt.V;em.opt.I)
e_V-I 0.02 mag Standard error on V-I (stat.error;phot.color;em.opt.V)
HpMag-0.167 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-0.24 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag-0.13 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-0.06 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag  mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag  mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag  mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 181.64 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 2.70 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 27376   Henry Draper catalog identifier (meta.id)
CstEri  Constellation membership (meta.code.member)
Atlas 399  Millennium Star Atlas page number (meta.bib.page)
Coords04179s3380  RA, DE in compact format; n = + ; s = - (meta.id)
Name41 Upsilon-4 Eridani  Star name(s) (meta.id)
GrpNameTucana / Horologium  Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J04179-3348  Reference for Comp (main.dat) (meta.id)
rSpType2009A&A...501..297Z  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]   Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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