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I/311/hip2 Hipparcos, the New Reduction (van Leeuwen, 2007)
The Astrometric Catalogue (117955 rows)
  recno=20836
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ColumnValue  Explain   (UCD)
_RAJ200004 28 36.999 "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+19 10 49.54 "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)
_RAB195004 25 41.589 "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+19 04 16.45 "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)
_Glon177.5961 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-19.9238 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (computed by VizieR, not part of the original data) (pos.galactic.lat)
20836recno 20836  Record number within the original table (starting from 1) (meta.record)

HIP 20889  Hipparcos identifier (meta.id;meta.main)

n_HIP   Existence of a note in the first version of Hipparcos catalog on Duplicity, Photometry or a General note; letters W, X, Y, Z indicate notes on several topics (field H70 of the 1997 edition, Cat. I/239) (meta.note)

Sn 5   [0,159] Solution type new reduction (Note 1)   (meta.id;stat.fit)
So0   [0,5] Solution type old reduction (Note 2)   (meta.id;stat.fit)
Nc1  Number of components (meta.number)
RArad067.15388847 deg Right Ascension in ICRS, Ep=1991.25 (pos.eq.ra;meta.main)
e_RArad 0.23 mas Formal error on RArad (stat.error)
DErad+19.18052103 deg Declination in ICRS, Ep=1991.25 (pos.eq.dec;meta.main)
e_DErad 0.17 mas Formal error on DErad (stat.error)
Plx 22.24 mas Parallax (pos.parallax)
e_Plx 0.25 mas Formal error on Plx (stat.error;pos.parallax)
pmRA 106.19 mas/yr Proper motion in Right Ascension (pos.pm;pos.eq.ra)
e_pmRA 0.38 mas/yr Formal error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -37.84 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.30 mas/yr Formal error on pmDE (stat.error;pos.pm;pos.eq.dec)
Ntr 66  Number of field transits used (meta.id;obs.field)
F2 2.56  Goodness of fit (stat.fit.goodness)
F1 1 % Percentage rejected data (stat.value;arith.ratio)
var 0.0  Cosmic dispersion added (stochastic solution) (stat.fit.residual)
Hpmag 3.6992 mag Hipparcos magnitude (phot.mag;em.opt.V)
e_Hpmag 0.0005 mag Error on mean Hpmag (stat.error;phot.mag;em.IR.H)
sHp 0.005 mag Scatter of Hpmag (stat.error)
VA0   [0,2] Reference to variability annex (meta.note)
B-V 1.014 mag Colour index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.006 mag Formal error on colour index (stat.error;phot.color;em.opt.B)
V-I 1.040 mag V-I colour index (phot.color;em.opt.V;em.opt.I)

HIP1HIP1  Data from the first edition of the Hipparcos Catalog (1997, Cat. I/239) (meta.ref.url)
PhotPhot  Hipparcos Epoch Photometry (Plot and List) from the 1997 edition (meta.ref.url)
  
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