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I/276/catalog Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)
*Main TDSC catalogue (98482 rows)
  recno=79540
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ColumnValue  Explain   (UCD)
_RAJ200019 50 34.725000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+08 53 01.97402 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195019 48 10.132925 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+08 45 21.62923 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon047.732695605 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-08.857534966 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)
79540recno 79540  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TDSC52618  (i) [1,65210] TDSC number for the system (meta.id;meta.main)
m_TDSCB  Component designation (Note 1)   (meta.code.multip)
Nmain 1   [0,11] Number of components in catalog (Note 2)   (meta.number)
Nsup1   [0,4] Number of components in supplement (Note 2)   (meta.number)
RAJ2000297.6446733 deg (i) Right ascension (ICRS), at epoch EpRA (pos.eq.ra;meta.main)
DEJ2000+08.8838831 deg (i) Declination (ICRS) at epoch EpDE (pos.eq.dec;meta.main)
EpRA1991.44 a Epoch of right ascension (time.epoch)
EpDE1991.48 a Epoch of declination (time.epoch)
e_RAJ2000 39 mas Standard error of RA*cos(dec) (stat.error;pos.eq.ra)
e_DEJ2000 36 mas Standard error of Dec (stat.error;pos.eq.dec)
posflg    [ NTH] position flag (Note 3)   (meta.ref;pos.frame)
pmRA 5.9 mas/a Proper motion in RA*cos(dec) (pos.pm;pos.eq.ra)
pmDE -0.6 mas/a Proper motion in Dec (pos.pm;pos.eq.dec)
e_pmRA 2.6 mas/a Standard err of prop mot in RA*cos(dec) (stat.error;pos.pm;pos.eq.ra)
e_pmDE 2.5 mas/a Standard err of prop mot in Dec (stat.error;pos.pm;pos.eq.dec)
pmflg    [ PHX] Proper motion flag (Note 4)   (meta.ref;pos.frame)
BTmag11.21 mag BT, Tycho blue magnitude (phot.mag;em.opt.B)
e_BTmag 0.06 mag Standard error of BT (stat.error;phot.mag;em.opt.B)
VTmag 9.82 mag VT or Hp magnitude (phot.mag;em.opt.V)
e_VTmag 0.03 mag Standard error of VT or Hp (stat.error;phot.mag;em.opt.V)
magflg    [ AFTBVH] photometry flag (Note 5)   (meta.ref;pos.frame)
TYC11058   [1,9537] TYC1 (Note 6)   (meta.id)
TYC2 3402   [1,12119] TYC2 (Note 6)   (meta.id)
TYC3 1   [1,4] TYC3 (Note 6)   (meta.id)
WDS19508+0852   WDS id for the system (Note 7)   (meta.id)
Note    [ ADNORSTU] a note (Note 8)   (meta.note)
HIP    Hipparcos number from Tycho-2 (meta.id)
CCDM    Hipparcos component identifier (meta.id)
HD    HD identifier (meta.id)
RcmpA   Reference component (meta.code.multip)
PA288.5 deg Position angle (Note 9)   (pos.posAng)
Sep 186.99 arcsec Separation (Note 9)   (pos.angDistance)
e_PA 0.0 deg Standard error of position angle (stat.error)
Sep*e_PA 31 mas Sep * e_PA (product of the 2 quantities) (pos.posAng)
e_Sep 43 mas Standard error of separation (stat.error)

Tycho-2Tycho-2  Display the data of all Tycho-2 stars having this TYC1 and TYC2 numbers (meta.ref.url)
  
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