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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)
  HIP=1640
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ColumnValue  Explain   (UCD)
_RAJ200000 20 31.5190687 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+30 58 29.295510 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195000 17 54.0870458 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+30 41 47.797118 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon115.1659648732 deg Galactic longitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lon)
_Glat-31.4305009151 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (pos.galactic.lat)
1636recno 1636  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

HIP 1640  (i) Hipparcos identifier (linked to details from HIP catalogs) (meta.id;meta.main)
Comp   Component(s) (Note 1)   (meta.code.multip)
Classes*,IR  SIMBAD classifications (comma separated) (Note 2)   (src.class)
Gr    Cluster or Association membership(s) (Note 3)   (meta.code.member)
RAJ2000005.13108872 deg (i) Right ascension (ICRS, Epoch=J1991.25) (pos.eq.ra;meta.main)
e_RAJ2000 0.55 mas Standard error on RA*cos(DEdeg) (stat.error;pos.eq.ra)
DEJ2000+30.97466268 deg (i) Declination (ICRS, Epoch=J1991.25) (pos.eq.dec;meta.main)
e_DEJ2000 0.35 mas Standard error on DE (stat.error;pos.eq.dec)
Plx 12.60 mas Trigonometric parallax (pos.parallax.trig)
e_Plx 0.65 mas Standard error on Plx (stat.error;pos.parallax)
pmRA 84.92 mas/yr Proper motion in RA*cos(DEdeg) (pos.pm;pos.eq.ra)
e_pmRA 0.57 mas/yr Standard error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE 58.27 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.39 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)
GLon115.16596761 deg Galactic longitude (Note 6)   (pos.galactic.lon)
GLat-31.43050228 deg Galactic latitude (Note 6)   (pos.galactic.lat)
Dist 79.11 pc Heliocentric distance (Note 7)   (pos.distance)
e_Dist 5.2 % Distance error expressed as percentage (Note 8)   (stat.error)
pmGLon 92.25 mas/yr Proper motion in GLon*cos(GLat) (pos.pm)
pmGLat 45.78 mas/yr Proper motion in GLat (pos.pm)
X -28.7 pc Heliocentric distance towards Gal. center (pos.distance)
Y 61.1 pc Heliocentric distance towards Gal. rotation (pos.distance)
Z -41.3 pc Heliocentric distance towards N. Gal. Pole (pos.distance)
RGal7429 pc Galactocentric distance (Note 9)   (pos.distance;pos.galactocentric)
vT 38.6 km/s Transverse velocity (phys.veloc)
SpTypeG8IV  Spectral type (MK, HD, or other) (src.spType)
Tc 58   ]0/140[ Temperature class codified (Note 10)   (src.spType)
Lc4   [1/6] Luminosity class codified (Note 11)   (src.class.luminosity)
RV 9.76 km/s Radial velocity (spect.dopplerVeloc;pos.heliocentric)
e_RV 0.22 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 -38.7 km/s Heliocentric velocity towards Gal. center (spect.dopplerVeloc;pos.heliocentric)
V 0.9 km/s Heliocentric velocity towards Gal. rotation (phys.veloc.rotat;pos.heliocentric)
W 9.6 km/s Heliocentric velocity towards N. Gal. Pole (spect.dopplerVeloc;em.IR.8-15um)
UVW 39.8 km/s Total heliocentric velocity (phys.veloc)
Dmin 76.70 pc Minimum distance at solar encounter (Note 16)   (pos.distance)
Tmin -476 kyr Timing of Dmin, in thousands of years (Note 17)   (time.epoch)
e 0.2113   Total orbital eccentricity (Note 18)   (src.orbital.eccentricity)
phi -40.2 deg [-180/180] Pericenter position angle (Note 18)   (src.orbital.periastron)
a 9031 pc Semi-major axis of orbit (Note 18)   (phys.size.smajAxis)
b 8828 pc Semi-minor axis of orbit (Note 18)   (phys.size.sminAxis)
c 1908 pc Focus-to-center distance of orbit (=a.e) (Note 18)   (pos.distance;src.orbital)
L 8628 deg Semilatus rectum of orbit (Note 18)   (src.orbital)
Rmin7123 pc Orbital radius at pericenter (Note 18)   (pos.distance;src.orbital)
Rmax 10939 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 7.687 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 7.67 mag Hpmag at maximum (5th percentile) (phot.mag;em.opt.V)
Hpmin 7.71 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 8.481 mag Apparent magnitude in Johnson B (phot.mag;em.opt.B)
Vmag 7.52 mag Apparent magnitude in Johnson V (phot.mag;em.opt.V)
Rmag  mag Apparent magnitude in R (phot.mag;em.opt.R)
Imag 6.667 mag Apparent magnitude in I (phot.mag;em.opt.I)
Jmag 5.850 mag J selected default magnitude (Note 22)   (phot.mag;em.IR.J)
e_Jmag 0.027 mag J total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.J)
Hmag 5.375 mag H selected default magnitude (Note 22)   (phot.mag;em.IR.H)
e_Hmag 0.033 mag H total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.H)
Kmag 5.272 mag K selected default magnitude (Note 22)   (phot.mag;em.IR.K)
e_Kmag 0.020 mag K total magnitude uncertainty (Note 22)   (stat.error;phot.mag;em.IR.K)
2MASS00203151+3058293  2MASS source designation (linked to details from 2MASS-PSC catalog) (Note 22)   (meta.id.cross)
q2MAAA  JHK photometric quality flag (Note 22)   (meta.code.qual;phot)
B-V 0.961 mag Johnson B-V color index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.015 mag Standard error on B-V (stat.error;phot.color;em.opt.B)
V-I 0.95 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 3.196 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 3.99 mag Absolute Magnitude in Johnson B (Note 23)   (phys.magAbs;em.opt.B)
VMag 3.03 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 2.18 mag Absolute Magnitude in I (Note 23)   (phys.magAbs;em.opt.I)
JMag 1.36 mag Absolute Magnitude J (Note 23)   (phys.magAbs;em.IR.J)
HMag 0.88 mag Absolute Magnitude H (Note 23)   (phys.magAbs;em.IR.H)
KMag 0.78 mag Absolute Magnitude K (Note 23)   (phys.magAbs;em.IR.K)
Lum 7.20 Lsun Stellar luminosity (Note 23)   (phys.luminosity)
magmin 7.45 mag Apparent magnitude V at Tmin (main.dat) (phot.mag)
HD 1605   Henry Draper catalog identifier (meta.id)
CstAnd  Constellation membership (meta.code.member)
Atlas 150  Millennium Star Atlas page number (meta.bib.page)
Coords00205n3097  RA, DE in compact format; n = + ; s = - (meta.id)
Name   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)
rSpType1977MNRAS.179...81W  Reference for SpType (main.dat) (Note 24)   (meta.ref;pos.frame)
r_RV582  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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