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I/276/catalog Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)
*Main TDSC catalogue (98482 rows)
  recno=51173
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ColumnValue  Explain   (UCD)
_RAJ200012 29 45.522456 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-61 12 41.24988 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 26 56.846980 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-60 56 06.37332 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon300.323893128 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+01.550462599 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)
51173recno 51173  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TDSC33707  (i) [1,65210] TDSC number for the system (meta.id;meta.main)
m_TDSCA  Component designation (Note 1)   (meta.code.multip)
Nmain 2   [0,11] Number of components in catalog (Note 2)   (meta.number)
Nsup0   [0,4] Number of components in supplement (Note 2)   (meta.number)
RAJ2000187.4396769 deg (i) Right ascension (ICRS), at epoch EpRA (pos.eq.ra;meta.main)
DEJ2000-61.2114583 deg (i) Declination (ICRS) at epoch EpDE (pos.eq.dec;meta.main)
EpRA1991.65 a Epoch of right ascension (time.epoch)
EpDE1991.73 a Epoch of declination (time.epoch)
e_RAJ2000 43 mas Standard error of RA*cos(dec) (stat.error;pos.eq.ra)
e_DEJ2000 44 mas Standard error of Dec (stat.error;pos.eq.dec)
posflgN   [ NTH] position flag (Note 3)   (meta.ref;pos.frame)
pmRA  mas/a Proper motion in RA*cos(dec) (pos.pm;pos.eq.ra)
pmDE  mas/a Proper motion in Dec (pos.pm;pos.eq.dec)
e_pmRA  mas/a Standard err of prop mot in RA*cos(dec) (stat.error;pos.pm;pos.eq.ra)
e_pmDE  mas/a Standard err of prop mot in Dec (stat.error;pos.pm;pos.eq.dec)
pmflgX   [ PHX] Proper motion flag (Note 4)   (meta.ref;pos.frame)
BTmag12.74 mag BT, Tycho blue magnitude (phot.mag;em.opt.B)
e_BTmag 0.24 mag Standard error of BT (stat.error;phot.mag;em.opt.B)
VTmag10.66 mag VT or Hp magnitude (phot.mag;em.opt.V)
e_VTmag 0.05 mag Standard error of VT or Hp (stat.error;phot.mag;em.opt.V)
magflg    [ AFTBVH] photometry flag (Note 5)   (meta.ref;pos.frame)
TYC18975   [1,9537] TYC1 (Note 6)   (meta.id)
TYC2 1122   [1,12119] TYC2 (Note 6)   (meta.id)
TYC3 1   [1,4] TYC3 (Note 6)   (meta.id)
WDS    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)
Rcmp    Reference component (meta.code.multip)
PA  deg Position angle (Note 9)   (pos.posAng)
Sep  arcsec Separation (Note 9)   (pos.angDistance)
e_PA  deg Standard error of position angle (stat.error)
Sep*e_PA  mas Sep * e_PA (product of the 2 quantities) (pos.posAng)
e_Sep  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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