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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=7803
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ColumnValue  Explain   (UCD)
_RAJ200001 40 34.8171507 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+40 34 37.376515 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195001 37 37.1178541 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+40 19 28.737185 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon132.9239648511 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-21.3392496901 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
7803recno 7803  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 7818  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompA  Component(s) (Note 1)   (meta.code.multip)
Classes**,*,V*,IR,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr    Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000025.14501738 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.19 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+40.57710615 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.15 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 4.58 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.25 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 16.90 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.70 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -23.50 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.70 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_pm2   [1/3] Reference for proper motion (Note 5)   (meta.ref;pos.frame)
GLon132.92396758 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-21.33925078 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 217.56 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 5.5 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 21.32 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -19.57 mas/yr Proper motion in GLat (pos.pm)
X-138.0 pc Heliocentric distance towards Gal. center (pos.distance)
Y 148.4 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -79.2 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7540 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 29.9 km/s Transverse velocity (phys.veloc)
SpTypeB8III-IV  Spectral type (MK, HD, or other) (src.spType)
Tc 28   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc3   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV -13.90 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 2.60 km/s Standard error on RV (Note 12)   (stat.error)
q_RVA   [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 -2.3 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -29.8 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -13.7 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 32.9 km/s Total heliocentric velocity (phys.veloc)
Dmin 197.23 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin 2727 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.1253   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 163.9 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 6738 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 6685 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 844 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 6632 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin5894 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 7582 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 4.938 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 4.93 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 4.95 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
HvarC mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag 4.440 mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 4.892 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 4.96 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 5.010 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 5.053 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.037 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 5.135 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.018 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 5.112 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.023 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS01403481+4034373  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MEAA  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V-0.068 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.015 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I-0.06 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-1.750 mag Absolute Magnitude of Hpmag (Note 23)   (phot.mag;em.IR.H)
UMag-2.248 mag Absolute Magnitude in Johnson U (Note 23)   (phot.mag;em.opt.U)
BMag-1.80 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag-1.73 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-1.68 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-1.63 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-1.55 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -1.58 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 625.13 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 4.75 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 10205   Henry Draper catalog identifier (meta.id)
CstAnd  Constellation membership (meta.code.member)
Atlas 102  Millennium Star Atlas page number (meta.bib.page)
Coords01406n4058  RA, DE in compact format; n = + ; s = - (meta.id)
Name53 Tau Andromedae  Star name(s) (meta.id)
GrpName   Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J01406+4035  Reference for Comp (main.dat) (meta.id)
rSpType1994AJ....107.1556G  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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