VizieR

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VizieR

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I/259/tyc2 The Tycho-2 Catalogue (Hog+ 2000)
*The Tycho-2 main catalogue (2539913 rows)
  recno=826005
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ColumnValue  Explain   (UCD)
_RAJ200002 04 10.2784725 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+46 41 16.217187 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195002 01 00.6118883 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+46 26 53.981228 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon135.6985489649 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-14.3730570011 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)
826005recno 826005  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TYC13281  (i) [1,9537] TYC1 from TYC or GSC (Note 1)   (meta.id.part;meta.main)
TYC2 800  (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 31.04282657 deg []? Mean Right Asc, ICRS, epoch=J2000 (3) (Note 3)   (pos.eq.ra)
DEmdeg 46.68783899 deg []? Mean Decl, ICRS, at epoch=J2000 (3) (Note 3)   (pos.eq.dec)
pmRA -12.3 mas/yr [-4418.0,6544.2] prop. mot. in RA*cos(dec) (Note)   (pos.pm;pos.eq.ra)
pmDE 3.9 mas/yr [-5774.3,10277.3] prop. mot. in Dec (Note)   (pos.pm;pos.eq.dec)
e_RAmdeg 66 mas [3,183] s.e. RA*cos(dec),at mean epoch (Note 5)   (stat.error)
e_DEmdeg 72 mas [1,184] s.e. of Dec at mean epoch (Note 5)   (stat.error)
e_pmRA 2.1 mas/yr [0.2,11.5] s.e. prop mot in RA*cos(dec) (Note 5)   (stat.error)
e_pmDE 2.1 mas/yr [0.2,10.3] s.e. of proper motion in Dec (Note 5)   (stat.error)
EpRAm1980.48 yr [1915.95,1992.53] mean epoch of RA (Note 4)   (time.epoch)
EpDEm1976.05 yr [1911.94,1992.01] mean epoch of Dec (Note 4)   (time.epoch)
Num 3   [2,36] Number of positions used (meta.id)
q_RAmdeg 0.1   [0.0,9.9] Goodness of fit for mean RA (Note 6)   (meta.code.qual)
q_DEmdeg 1.3   [0.0,9.9] Goodness of fit for mean Dec (Note 6)   (meta.code.qual)
q_pmRA 0.1   [0.0,9.9] Goodness of fit for pmRA (Note 6)   (meta.code.qual)
q_pmDE 1.2   [0.0,9.9] Goodness of fit for pmDE (Note 6)   (meta.code.qual)
BTmag11.862 mag [2.183,16.581] Tycho-2 BT magnitude (Note 7)   (phot.mag;em.opt.B)
e_BTmag 0.100 mag [0.014,1.977] s.e. of BT (Note 7)   (stat.error)
VTmag11.482 mag [1.905,15.193] Tycho-2 VT magnitude (Note 7)   (phot.mag;em.opt.V)
e_VTmag 0.116 mag [0.009,1.468] s.e. of VT (Note 7)   (stat.error)
prox999   [3,999] proximity indicator (Note 8)   (meta.code)
TYC    [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) 31.04286806 deg (i) Observed Tycho-2 Right Ascension, ICRS (pos.eq.ra;meta.main)
DE(ICRS) 46.68782917 deg (i) Observed Tycho-2 Declination, ICRS (pos.eq.dec;meta.main)
EpRA-1990 1.75 yr [0.81,2.13] epoch-1990 of RAdeg (time.epoch)
EpDE-1990 1.67 yr [0.72,2.36] epoch-1990 of DEdeg (time.epoch)
e_RAdeg 70.3 mas s.e.RA*cos(dec), of observed Tycho-2 RA (Note 5)   (stat.error)
e_DEdeg 79.1 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-0.1   [-1,1] correlation (RAdeg,DEdeg) (stat.correlation)
  
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