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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=79621
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ColumnValue  Explain   (UCD)
_RAJ200016 18 17.9000661 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-28 36 50.476531 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 15 11.5097777 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-28 29 28.936133 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon348.5558299047 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat+15.4081829852 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
79621recno 79621  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 79881  (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)
RAJ2000244.57467038 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)
DEJ2000-28.61377604 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.13 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 24.22 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.22 mas Standard error on Plx (stat.error;pos.parallax)
pmRA -31.34 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.24 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -100.89 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.18 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_pm3   [1/3] Reference for proper motion (Note 5)   (meta.ref;pos.frame)
GLon348.55583263 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat 15.40818324 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 41.28 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 0.9 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon -94.70 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat -46.82 mas/yr Proper motion in GLat (pos.pm)
X 39.0 pc Heliocentric distance towards Gal. center (pos.distance)
Y -7.9 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z 11.0 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7361 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 20.7 km/s Transverse velocity (phys.veloc)
SpTypeA1IV  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 -13.00 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] 0.12 [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 -13.6 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V -16.2 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W -12.3 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 24.4 km/s Total heliocentric velocity (phys.veloc)
Dmin 34.95 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin 880 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.0195   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi 172.3 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 7221 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 7220 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 141 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 7219 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7081 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 7362 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 4.803 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 4.80 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 4.82 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 4.808 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 4.80 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 4.805 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 4.855 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 4.939 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.076 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 4.739 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.018 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS16181789-2836502  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MEEA  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V 0.008 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.018 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I-0.01 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 1.724 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 1.73 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 1.72 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 1.73 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag 1.78 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag 1.86 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag 1.66 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 20.21 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 4.44 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD146624   Henry Draper catalog identifier (meta.id)
CstSco  Constellation membership (meta.code.member)
Atlas1420  Millennium Star Atlas page number (meta.bib.page)
Coords16183s2861  RA, DE in compact format; n = + ; s = - (meta.id)
Named Scorpii (HR 6070)  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)
rSpType1995ApJS...99..135A  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]214,350  Reference(s) for [Fe/H] (main.dat) (meta.ref)
  
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