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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=21194
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ColumnValue  Explain   (UCD)
_RAJ200004 33 30.5523682 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-29 45 59.372060 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195004 31 32.7899393 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-29 51 59.197008 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon229.8573793955 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-41.5872520502 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
21194recno 21194  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 21248  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
Comp   Component(s) (Note 1)   (meta.code.multip)
Classes*,PM*,V*,IR,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr    Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000068.37762289 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.13 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000-29.76583176 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.20 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 25.67 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.24 mas Standard error on Plx (stat.error;pos.parallax)
pmRA -114.77 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.18 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -271.74 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.21 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)
GLon229.85738255 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-41.58725084 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 38.95 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 0.9 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 244.18 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -165.50 mas/yr Proper motion in GLat (pos.pm)
X -18.8 pc Heliocentric distance towards Gal. center (pos.distance)
Y -22.3 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -25.9 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7419 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 54.5 km/s Transverse velocity (phys.veloc)
SpTypeK0III-IV  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 20.60 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.70 km/s Standard error on RV (Note 12)   (stat.error)
q_RVA   [ABCD] Quality flag on RV (Note 13)   (meta.code.qual)
[Fe/H]-0.20 [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]B   [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 37.6 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -25.3 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -36.5 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 58.2 km/s Total heliocentric velocity (phys.veloc)
Dmin 36.43 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin -231 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.2503   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 108.2 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 7297 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 7064 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 1826 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 6840 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin5470 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 9123 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 4.662 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 4.65 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 4.67 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 5.462 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 4.49 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 3.613 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 2.799 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.248 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 2.245 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.216 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 2.122 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.230 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS04333056-2945590  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MDCD  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V 0.972 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.022 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 1.00 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 1.709 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 2.51 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 1.54 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 0.66 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-0.15 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-0.71 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -0.83 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 28.70 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 4.34 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 29085   Henry Draper catalog identifier (meta.id)
CstEri  Constellation membership (meta.code.member)
Atlas 376  Millennium Star Atlas page number (meta.bib.page)
Coords04335s2977  RA, DE in compact format; n = + ; s = - (meta.id)
Name50 Upsilon-1 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)
rSpType2006AJ....132..161G  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]020,138  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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