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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=15344
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ColumnValue  Explain   (UCD)
_RAJ200003 18 22.1032621 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-22 30 40.002708 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195003 16 09.4087971 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-22 41 34.273736 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon213.2582443925 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-56.4599854299 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
15344recno 15344  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 15382  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompAB  Component(s) (Note 1)   (meta.code.multip)
Classes**,*,IR,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr    Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000049.59206509 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.80 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000-22.51114978 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 1.02 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 12.79 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.75 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 12.10 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 1.10 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE 15.60 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 1.10 mas/yr Standard error on pmDE (stat.error;pos.pm;pos.eq.dec)
r_HIP1   [1/2] Reference for Hipparcos astrometry (Note 4)   (meta.ref;pos.frame)
r_pm2   [1/3] Reference for proper motion (Note 5)   (meta.ref;pos.frame)
GLon213.25824860 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-56.45998455 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 77.86 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 5.9 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon -11.78 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 15.84 mas/yr Proper motion in GLat (pos.pm)
X -36.0 pc Heliocentric distance towards Gal. center (pos.distance)
Y -23.6 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -64.9 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7436 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 7.3 km/s Transverse velocity (phys.veloc)
SpTypeK0 III  Spectral type (MK, HD, or other) (src.spType)
Tc 60   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc3   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 23.90 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.50 km/s Standard error on RV (Note 12)   (stat.error)
q_RVB   [ABCD] Quality flag on RV (Note 13)   (meta.code.qual)
[Fe/H] 0.02 [Sun] Iron abundance (phys.abund.Fe)
e_[Fe/H] 0.06 [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  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 -17.5 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -6.3 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -16.7 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 25.0 km/s Total heliocentric velocity (phys.veloc)
Dmin 22.71 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin-2915 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.0895   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi -9.6 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 8157 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 8125 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 730 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 8092 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7428 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 8887 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 5.024 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 5.01 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 5.04 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 5.764 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 4.86 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 4.059 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 3.405 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.284 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 2.844 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.254 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 2.741 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.270 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS03182211-2230400  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MDDD  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V 0.904 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 0.91 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 0.580 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 1.32 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 0.42 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-0.38 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-1.04 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-1.60 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -1.70 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 75.78 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 2.17 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 20610   Henry Draper catalog identifier (meta.id)
CstEri  Constellation membership (meta.code.member)
Atlas 357  Millennium Star Atlas page number (meta.bib.page)
Coords03184s2251  RA, DE in compact format; n = + ; s = - (meta.id)
Name15 Eridani  Star name(s) (meta.id)
GrpName   Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J03184-2231  Reference for Comp (main.dat) (meta.id)
rSpType1988MSS...C04....0H  Reference for SpType (main.dat) (Note 24)   (meta.ref;pos.frame)
r_RV551  Reference for RV (main.dat) (meta.ref;pos.frame)
r_[Fe/H]138  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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