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I/259/tyc2 The Tycho-2 Catalogue (Hog+ 2000)
*The Tycho-2 main catalogue (2539913 rows)
  recno=406028
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ColumnValue  Explain   (UCD)
_RAJ200003 47 21.0366906 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+24 06 58.568550 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195003 44 22.3807780 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 57 47.169608 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon166.6354420949 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-23.4675971855 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
406028recno 406028  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC11800  (i) [1,9537] TYC1 from TYC or GSC (Note 1)   (meta.id.part;meta.main)
TYC2 2201  (i) [1,12121] TYC2 from TYC or GSC (Note 1)   (meta.id.part;meta.main)
TYC31  (i) [1,3] TYC3 from TYC (Note 1)   (meta.id.part;meta.main)
pflag    [ PX] mean position flag (Note 2)   (meta.code)
RAmdeg 56.83765273 deg (i) []? Mean Right Asc, ICRS, epoch=J2000 (3) (Note 3)   (pos.eq.ra;meta.main)
DEmdeg 24.11626712 deg (i) []? Mean Decl, ICRS, at epoch=J2000 (3) (Note 3)   (pos.eq.dec;meta.main)
pmRA 19.3 mas/yr [-4418.0,6544.2] prop. mot. in RA*cos(dec) (Note)   (pos.pm;pos.eq.ra)
pmDE -44.3 mas/yr [-5774.3,10277.3] prop. mot. in Dec (Note)   (pos.pm;pos.eq.dec)
e_RAmdeg 4 mas [3,183] s.e. RA*cos(dec),at mean epoch (Note 5)   (stat.error)
e_DEmdeg 5 mas [1,184] s.e. of Dec at mean epoch (Note 5)   (stat.error)
e_pmRA 0.8 mas/yr [0.2,11.5] s.e. prop mot in RA*cos(dec) (Note 5)   (stat.error)
e_pmDE 0.8 mas/yr [0.2,10.3] s.e. of proper motion in Dec (Note 5)   (stat.error)
EpRAm1991.31 yr [1915.95,1992.53] mean epoch of RA (Note 4)   (time.epoch)
EpDEm1990.91 yr [1911.94,1992.01] mean epoch of Dec (Note 4)   (time.epoch)
Num15   [2,36] Number of positions used (meta.id)
q_RAmdeg 0.8   [0.0,9.9] Goodness of fit for mean RA (Note 6)   (meta.code.qual)
q_DEmdeg 1.0   [0.0,9.9] Goodness of fit for mean Dec (Note 6)   (meta.code.qual)
q_pmRA 0.9   [0.0,9.9] Goodness of fit for pmRA (Note 6)   (meta.code.qual)
q_pmDE 1.0   [0.0,9.9] Goodness of fit for pmDE (Note 6)   (meta.code.qual)
BTmag 6.302 mag [2.183,16.581] Tycho-2 BT magnitude (Note 7)   (phot.mag;em.opt.B)
e_BTmag 0.015 mag [0.014,1.977] s.e. of BT (Note 7)   (stat.error)
VTmag 6.273 mag [1.905,15.193] Tycho-2 VT magnitude (Note 7)   (phot.mag;em.opt.V)
e_VTmag 0.010 mag [0.009,1.468] s.e. of VT (Note 7)   (stat.error)
prox751   [3,999] proximity indicator (Note 8)   (meta.code)
TYCT   [T] Tycho-1 star (Note 9)   (meta.code)
HIP    [1,120404] Hipparcos number (meta.id)
CCDM   CCDM component identifier for HIP stars (Note 10)   (meta.code.multip)
RA(ICRS) 56.83760389 deg (i) Observed Tycho-2 Right Ascension, ICRS (pos.eq.ra;meta.main)
DE(ICRS) 24.11637167 deg (i) Observed Tycho-2 Declination, ICRS (pos.eq.dec;meta.main)
EpRA-1990 1.66 yr [0.81,2.13] epoch-1990 of RAdeg (time.epoch)
EpDE-1990 1.49 yr [0.72,2.36] epoch-1990 of DEdeg (time.epoch)
e_RAdeg 4.1 mas s.e.RA*cos(dec), of observed Tycho-2 RA (Note 5)   (stat.error)
e_DEdeg 4.5 mas s.e. of observed Tycho-2 Dec (Note 5)   (stat.error)
posflg    [ DP] type of Tycho-2 solution (Note 11)   (meta.id;stat.fit)
corr-0.4   [-1,1] correlation (RAdeg,DEdeg) (stat.correlation)
  
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