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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=26244
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ColumnValue  Explain   (UCD)
_RAJ200005 36 12.813 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000-01 12 06.91 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195005 33 40.482 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950-01 13 56.25 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon205.2121 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-17.2417 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (computed by VizieR, not part of the original data) (pos.galactic.lat)
26244recno 26244  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 26311  Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompA  Component(s) (Note 1)   (meta.code.multip)
Classes**,Em*,V*,IR,X,*,UV  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr4   Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000084.05338544 deg Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.33 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000-01.20191724 deg Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.19 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 1.65 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.45 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 1.44 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 -0.78 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.19 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)
GLon205.21206247 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-17.24173331 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 411.22 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist  % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 1.37 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 0.90 mas/yr Proper motion in GLat (pos.pm)
X-355.3 pc Heliocentric distance towards Gal. center (pos.distance)
Y -167.3 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z-121.9 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7758 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 3.2 km/s Transverse velocity (phys.veloc)
SpTypeB0Ib  Spectral type (MK, HD, or other) (src.spType)
Tc 20   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc1   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 27.30 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.80 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 -22.9 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -13.7 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -6.4 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 27.5 km/s Total heliocentric velocity (phys.veloc)
Dmin  pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin  kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.0625   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi -20.9 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 8243 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 8227 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 515 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 8210 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7728 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 8757 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 1.624 mag Median magnitude in Hipparcos system (phot.mag;em.opt.V)
e_Hpmag 0.002 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 1.60 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 1.65 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
HvarU mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag 0.480 mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 1.506 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 1.69 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 1.852 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 2.191 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.324 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 2.408 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.180 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 2.273 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.282 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS05361280-0112070  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-0.184 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.008 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I-0.16 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-6.447 mag Absolute Magnitude of Hpmag (Note 23)   (phot.mag;em.IR.H)
UMag-7.590 mag Absolute Magnitude in Johnson U (Note 23)   (phot.mag;em.opt.U)
BMag-6.56 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag-6.38 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-6.22 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-5.88 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-5.66 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -5.80 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum112138.15 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin  mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 37128   Henry Draper catalog identifier (meta.id)
CstOri  Constellation membership (meta.code.member)
Atlas 254  Millennium Star Atlas page number (meta.bib.page)
Coords05362s0120  RA, DE in compact format; n = + ; s = - (meta.id)
Name46 Epsilon Orionis (Alnilam)  Star name(s) (meta.id)
GrpNameOrion Molecular Cloud, ASCC 19, Collinder 70, Sigma Orionis  Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J05363-0112  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]   Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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