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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=21086
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ColumnValue  Explain   (UCD)
_RAJ200004 31 52.6682394 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-00 02 38.440049 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195004 29 19.0391965 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-00 08 59.187518 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon195.3356171732 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-30.6255948508 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
21086recno 21086  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 21139  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
Comp   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)
RAJ2000067.96945598 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.34 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000-00.04399117 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.22 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 4.97 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.38 mas Standard error on Plx (stat.error;pos.parallax)
pmRA -2.05 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.41 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -8.21 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.33 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)
GLon195.33562035 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-30.62559440 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 199.81 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 7.6 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 5.88 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -6.08 mas/yr Proper motion in GLat (pos.pm)
X-165.8 pc Heliocentric distance towards Gal. center (pos.distance)
Y -45.5 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z-101.8 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7567 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 8.0 km/s Transverse velocity (phys.veloc)
SpTypeK0/1 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 16.30 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.80 km/s Standard error on RV (Note 12)   (stat.error)
q_RVA   [ABCD] Quality flag on RV (Note 13)   (meta.code.qual)
[Fe/H]-0.08 [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 -9.2 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -8.3 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -13.3 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 18.2 km/s Total heliocentric velocity (phys.veloc)
Dmin 88.12 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin-9655 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.0903   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 19.1 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 8279 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 8246 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 747 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 8212 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7532 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 9027 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 5.081 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 5.07 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 5.10 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
Hvar  mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag  mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 6.230 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 4.91 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 3.801 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 2.875 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.288 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 2.241 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.238 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 2.084 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.266 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS04315266-0002384  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 1.320 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.040 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 1.25 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-1.422 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-0.27 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag-1.59 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-2.70 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-3.63 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-4.26 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -4.42 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 762.11 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 3.13 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 28749   Henry Draper catalog identifier (meta.id)
CstEri  Constellation membership (meta.code.member)
Atlas 257  Millennium Star Atlas page number (meta.bib.page)
Coords04319s0004  RA, DE in compact format; n = + ; s = - (meta.id)
Name45 Eridani  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)
rSpType1999MSS...C05....0H  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]138  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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