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I/311/hip2 Hipparcos, the New Reduction (van Leeuwen, 2007)
The Astrometric Catalogue (117955 rows)
  recno=1897
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ColumnValue  Explain   (UCD)
_RAJ200000 24 01.948 "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+38 34 37.35 "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)
_RAB195000 21 23.003 "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+38 18 01.84 "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)
_Glon117.0734 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-23.9827 deg Galactic latitude at Epoch=J1991.25, proper motions taken into account (computed by VizieR, not part of the original data) (pos.galactic.lat)
1897recno 1897  Record number within the original table (starting from 1) (meta.record)

HIP 1901  Hipparcos identifier (meta.id;meta.main)

n_HIPP  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)
So5   [0,5] Solution type old reduction (Note 2)   (meta.id;stat.fit)
Nc1  Number of components (meta.number)
RArad006.00816250 deg Right Ascension in ICRS, Ep=1991.25 (pos.eq.ra;meta.main)
e_RArad 1.52 mas Formal error on RArad (stat.error)
DErad+38.57712218 deg Declination in ICRS, Ep=1991.25 (pos.eq.dec;meta.main)
e_DErad 0.96 mas Formal error on DErad (stat.error)
Plx 2.59 mas Parallax (pos.parallax)
e_Plx 2.76 mas Formal error on Plx (stat.error;pos.parallax)
pmRA -14.98 mas/yr Proper motion in Right Ascension (pos.pm;pos.eq.ra)
e_pmRA 2.73 mas/yr Formal error on pmRA (stat.error;pos.pm;pos.eq.ra)
pmDE -32.64 mas/yr Proper motion in Declination (pos.pm;pos.eq.dec)
e_pmDE 0.96 mas/yr Formal error on pmDE (stat.error;pos.pm;pos.eq.dec)
Ntr 81  Number of field transits used (meta.id;obs.field)
F2-0.13  Goodness of fit (stat.fit.goodness)
F1 0 % Percentage rejected data (stat.value;arith.ratio)
var 0.0  Cosmic dispersion added (stochastic solution) (stat.fit.residual)
Hpmag10.7054 mag Hipparcos magnitude (phot.mag;em.opt.V)
e_Hpmag 0.0114 mag Error on mean Hpmag (stat.error;phot.mag;em.IR.H)
sHp 1.284 mag Scatter of Hpmag (stat.error)
VA1   [0,2] Reference to variability annex (meta.note)
B-V 2.080 mag Colour index (phot.color;em.opt.B;em.opt.V)
e_B-V 0.510 mag Formal error on colour index (stat.error;phot.color;em.opt.B)
V-I 2.630 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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