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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=53739
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ColumnValue  Explain   (UCD)
_RAJ200011 01 50.4765370 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+56 22 56.733920 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195010 58 50.2443908 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+56 39 03.269169 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon149.1664438025 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+54.8039979808 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
53739recno 53739  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 53910  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
Comp   Component(s) (Note 1)   (meta.code.multip)
Classes*,V*,IR,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr1   Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000165.45996142 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.09 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+56.38234469 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.09 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 40.90 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.16 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 81.43 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.10 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE 33.49 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.09 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)
GLon149.16644421 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat 54.80399724 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 24.45 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 0.4 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon -81.09 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 34.30 mas/yr Proper motion in GLat (pos.pm)
X -12.1 pc Heliocentric distance towards Gal. center (pos.distance)
Y 7.2 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z 20.0 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7412 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 10.2 km/s Transverse velocity (phys.veloc)
SpTypeA1IVspSr  Spectral type (MK, HD, or other) (src.spType)
Tc 31   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc4   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV -13.10 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]-0.03 [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 14.1 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V 2.5 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -8.4 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 16.6 km/s Total heliocentric velocity (phys.veloc)
Dmin 15.03 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin 1136 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.2237   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 39.7 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 9145 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 8913 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 2045 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 8687 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7099 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 11190 pc Orbital radius at apocenter (Note 18)   (pos.distance;src.orbital)
Npl0   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 2.350 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 2.34 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 2.36 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 2.373 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 2.34 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 2.329 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 2.269 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.244 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 2.359 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.164 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 2.285 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)
2MASS11015046+5622566  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 0.033 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.003 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 0.02 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 0.409 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 0.43 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 0.40 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 0.39 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag 0.33 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag 0.42 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag 0.34 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 63.99 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 1.28 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 95418   Henry Draper catalog identifier (meta.id)
CstUMa  Constellation membership (meta.code.member)
Atlas 576  Millennium Star Atlas page number (meta.bib.page)
Coords11018n5638  RA, DE in compact format; n = + ; s = - (meta.id)
Name48 Beta Ursae Majoris (Merak)  Star name(s) (meta.id)
GrpNameUrsa Major  Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompID   Reference for Comp (main.dat) (meta.id)
rSpType2003AJ....126.2048G  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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