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I/276/catalog Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)
*Main TDSC catalogue (98482 rows)
  recno=23860
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ColumnValue  Explain   (UCD)
_RAJ200006 41 01.874361 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+09 52 47.96105 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195006 38 16.671410 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+09 55 41.13349 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon202.956375904 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+02.203031661 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)
23860recno 23860  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TDSC16013  (i) [1,65210] TDSC number for the system (meta.id;meta.main)
m_TDSCE  Component designation (Note 1)   (meta.code.multip)
Nmain 4   [0,11] Number of components in catalog (Note 2)   (meta.number)
Nsup2   [0,4] Number of components in supplement (Note 2)   (meta.number)
RAJ2000100.2578272 deg (i) Right ascension (ICRS), at epoch EpRA (pos.eq.ra;meta.main)
DEJ2000+09.8800186 deg (i) Declination (ICRS) at epoch EpDE (pos.eq.dec;meta.main)
EpRA1991.79 a Epoch of right ascension (time.epoch)
EpDE1991.82 a Epoch of declination (time.epoch)
e_RAJ2000 11 mas Standard error of RA*cos(dec) (stat.error;pos.eq.ra)
e_DEJ2000 13 mas Standard error of Dec (stat.error;pos.eq.dec)
posflg    [ NTH] position flag (Note 3)   (meta.ref;pos.frame)
pmRA -7.5 mas/a Proper motion in RA*cos(dec) (pos.pm;pos.eq.ra)
pmDE -12.9 mas/a Proper motion in Dec (pos.pm;pos.eq.dec)
e_pmRA 2.0 mas/a Standard err of prop mot in RA*cos(dec) (stat.error;pos.pm;pos.eq.ra)
e_pmDE 1.8 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)
BTmag 8.83 mag BT, Tycho blue magnitude (phot.mag;em.opt.B)
e_BTmag 0.02 mag Standard error of BT (stat.error;phot.mag;em.opt.B)
VTmag 8.86 mag VT or Hp magnitude (phot.mag;em.opt.V)
e_VTmag 0.02 mag Standard error of VT or Hp (stat.error;phot.mag;em.opt.V)
magflg    [ AFTBVH] photometry flag (Note 5)   (meta.ref;pos.frame)
TYC1 750   [1,9537] TYC1 (Note 6)   (meta.id)
TYC2 821   [1,12119] TYC2 (Note 6)   (meta.id)
TYC3 1   [1,4] TYC3 (Note 6)   (meta.id)
WDS06410+0954   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)
HD261938   HD identifier (meta.id)
RcmpAa   Reference component (meta.code.multip)
PA140.0 deg Position angle (Note 9)   (pos.posAng)
Sep 73.97 arcsec Separation (Note 9)   (pos.angDistance)
e_PA 0.0 deg Standard error of position angle (stat.error)
Sep*e_PA 10 mas Sep * e_PA (product of the 2 quantities) (pos.posAng)
e_Sep 15 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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