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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=25362
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ColumnValue  Explain   (UCD)
_RAJ200005 26 17.5131197 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+28 36 26.826207 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 23 07.7101714 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+28 34 01.816039 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon177.9940126326 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-03.7452182130 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
25362recno 25362  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 25428  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompA  Component(s) (Note 1)   (meta.code.multip)
Classes**,*,*i*,PM*,IR,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr    Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000081.57290832 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.30 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+28.60787362 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.17 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 24.36 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.34 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 22.76 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.42 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -173.58 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.18 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)
GLon177.99401504 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat -3.74521821 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 41.04 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 1.4 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 156.91 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -77.63 mas/yr Proper motion in GLat (pos.pm)
X -40.9 pc Heliocentric distance towards Gal. center (pos.distance)
Y 1.4 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -2.7 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7441 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 34.1 km/s Transverse velocity (phys.veloc)
SpTypeB5.5IV  Spectral type (MK, HD, or other) (src.spType)
Tc 25   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc4   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 9.20 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 2.50 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] 0.04 [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 -9.3 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -30.2 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -15.7 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 35.3 km/s Total heliocentric velocity (phys.veloc)
Dmin 39.62 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin -297 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.1380   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 171.5 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 6550 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 6488 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 904 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 6426 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin5646 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 7454 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 1.615 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 1.61 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 1.62 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 1.030 mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 1.520 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 1.65 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag 1.70 mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 1.800 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 1.855 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.234 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 1.881 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.192 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 2.004 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.244 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS05261751+2836271  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-0.130 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 0.03 mag Standard error on V-I (stat.error;phot.color;em.opt.V)
HpMag-1.451 mag Absolute Magnitude of Hpmag (Note 23)   (phot.mag;em.IR.H)
UMag-2.036 mag Absolute Magnitude in Johnson U (Note 23)   (phot.mag;em.opt.U)
BMag-1.55 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag-1.42 mag Absolute Magnitude in Johnson V (Note 23)   (phys.magAbs;em.opt.V)
RMag-1.37 mag Absolute Magnitude in R (Note 23)   (phys.magAbs;em.opt.R)
IMag-1.27 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-1.21 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-1.19 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -1.06 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 682.41 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 1.57 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 35497   Henry Draper catalog identifier (meta.id)
CstTau  Constellation membership (meta.code.member)
Atlas 136  Millennium Star Atlas page number (meta.bib.page)
Coords05263n2861  RA, DE in compact format; n = + ; s = - (meta.id)
Name112 Beta Tauri (Alnath)  Star name(s) (meta.id)
GrpName   Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J05263+2836  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]003  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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