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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=50215
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ColumnValue  Explain   (UCD)
_RAJ200010 17 05.7828670 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+42 54 51.680782 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195010 14 05.4149507 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+43 09 53.830428 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon175.8710251112 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+55.0834077994 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
50215recno 50215  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 50372  (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)
RAJ2000154.27469481 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.66 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+42.91446775 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.54 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 23.72 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.78 mas Standard error on Plx (stat.error;pos.parallax)
pmRA -180.65 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 1.00 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -46.07 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.64 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)
GLon175.87102522 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat 55.08340774 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 42.10 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 3.3 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 88.78 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -163.93 mas/yr Proper motion in GLat (pos.pm)
X -24.0 pc Heliocentric distance towards Gal. center (pos.distance)
Y 1.7 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z 34.5 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7424 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 37.2 km/s Transverse velocity (phys.veloc)
SpTypeA1V  Spectral type (MK, HD, or other) (src.spType)
Tc 31   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc5   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 18.10 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.10 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]C   [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 -38.4 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -15.0 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -3.9 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 41.4 km/s Total heliocentric velocity (phys.veloc)
Dmin 37.86 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin -435 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.1168   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi -90.3 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 7522 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 7471 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 878 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 7420 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin6644 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 8401 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 3.459 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 3.45 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 3.47 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  mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 3.479 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 3.45 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag 3.40 mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 3.400 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 3.437 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.282 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 3.459 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.212 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 3.418 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.330 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS10170583+4254515  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 0.029 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.007 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 0.05 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 0.337 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 0.36 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 0.33 mag Absolute Magnitude in Johnson V (Note 23)   (phys.magAbs;em.opt.V)
RMag 0.28 mag Absolute Magnitude in R (Note 23)   (phys.magAbs;em.opt.R)
IMag 0.28 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag 0.32 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag 0.34 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag 0.30 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 69.67 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 3.22 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 89021   Henry Draper catalog identifier (meta.id)
CstUMa  Constellation membership (meta.code.member)
Atlas 617  Millennium Star Atlas page number (meta.bib.page)
Coords10171n4291  RA, DE in compact format; n = + ; s = - (meta.id)
Name33 Lambda Ursae Majoris (Tania Borealis)  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)
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]295  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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