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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=26482
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ColumnValue  Explain   (UCD)
_RAJ200005 38 44.7679983 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-02 36 00.247976 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 36 14.0506339 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-02 37 38.541238 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon206.8163235867 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-17.3360095605 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
26482recno 26482  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 26549  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
CompAB  Component(s) (Note 1)   (meta.code.multip)
Classes**,*,*iC,V*,IR,UV,X  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr3   Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000084.68652211 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 1.46 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000-02.60006791 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.95 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 2.84 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.91 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 4.61 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.88 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -0.40 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.53 mas/yr Standard error on pmDE (stat.error;pos.pm;pos.eq.dec)
r_HIP1   [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)
GLon206.81632632 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-17.33600882 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 291.36 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist  % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 2.49 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 3.90 mas/yr Proper motion in GLat (pos.pm)
X-248.2 pc Heliocentric distance towards Gal. center (pos.distance)
Y -125.5 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -86.8 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7650 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 6.4 km/s Transverse velocity (phys.veloc)
SpTypeO9.5V  Spectral type (MK, HD, or other) (src.spType)
Tc 19   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc5   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 29.90 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 1.60 km/s Standard error on RV (Note 12)   (stat.error)
q_RVB   [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 -25.4 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -16.7 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -3.8 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 30.6 km/s Total heliocentric velocity (phys.veloc)
Dmin 60.90 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin-9112 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.0418   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi -68.7 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 7779 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 7772 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 325 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 7765 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7454 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 8104 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 3.681 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 3.66 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 3.72 mag Hpmag at minimum (95th percentile) (phot.mag;em.IR.H)
Per  d Variability period (src.var)
HvarD mag [CDMPRU] Variability type (Note 21)   (meta.code;src.var)
Umag 2.500 mag Apparent magnitude in Johnson U (phot.mag;em.opt.U)
Bmag 3.580 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 3.77 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 4.020 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 4.752 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.260 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 4.641 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.252 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 4.490 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.016 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS05384476-0236001  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MDDA  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V-0.190 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.400 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I-0.25 mag Color index in Cousins' system (phot.color;em.opt.V;em.opt.I)
e_V-I 0.01 mag Standard error on V-I (stat.error;phot.color;em.opt.V)
HpMag-3.641 mag Absolute Magnitude of Hpmag (Note 23)   (phot.mag;em.IR.H)
UMag-4.822 mag Absolute Magnitude in Johnson U (Note 23)   (phot.mag;em.opt.U)
BMag-3.74 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag-3.55 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-3.30 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag-2.57 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag-2.68 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag -2.83 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 8288.02 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 0.37 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 37468   Henry Draper catalog identifier (meta.id)
CstOri  Constellation membership (meta.code.member)
Atlas 254  Millennium Star Atlas page number (meta.bib.page)
Coords05387s0260  RA, DE in compact format; n = + ; s = - (meta.id)
Name48 Sigma Orionis  Star name(s) (meta.id)
GrpNameOrion Molecular Cloud, Collinder 70, Sigma Orionis  Cluster or Association name(s) (linked to Group characteristics ) (meta.id.parent)
CompIDCCDM J05387-0236  Reference for Comp (main.dat) (meta.id)
rSpType2009A&A...501..297Z  Reference for SpType (main.dat) (Note 24)   (meta.ref;pos.frame)
r_RV551  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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