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I/276/catalog Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)
*Main TDSC catalogue (98482 rows)
  recno=54367
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ColumnValue  Explain   (UCD)
_RAJ200013 30 46.803902 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+24 13 57.76261 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195013 28 24.763344 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+24 29 25.22409 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon017.021100559 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+80.678494030 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)
54367recno 54367  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TDSC35770  (i) [1,65210] TDSC number for the system (meta.id;meta.main)
m_TDSCC  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)
RAJ2000202.6951531 deg (i) Right ascension (ICRS), at epoch EpRA (pos.eq.ra;meta.main)
DEJ2000+24.2327586 deg (i) Declination (ICRS) at epoch EpDE (pos.eq.dec;meta.main)
EpRA1991.54 a Epoch of right ascension (time.epoch)
EpDE1991.73 a Epoch of declination (time.epoch)
e_RAJ2000 8 mas Standard error of RA*cos(dec) (stat.error;pos.eq.ra)
e_DEJ2000 7 mas Standard error of Dec (stat.error;pos.eq.dec)
posflg    [ NTH] position flag (Note 3)   (meta.ref;pos.frame)
pmRA -53.1 mas/a Proper motion in RA*cos(dec) (pos.pm;pos.eq.ra)
pmDE -19.9 mas/a Proper motion in Dec (pos.pm;pos.eq.dec)
e_pmRA 1.0 mas/a Standard err of prop mot in RA*cos(dec) (stat.error;pos.pm;pos.eq.ra)
e_pmDE 1.0 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 9.29 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 8.28 mag VT or Hp magnitude (phot.mag;em.opt.V)
e_VTmag 0.01 mag Standard error of VT or Hp (stat.error;phot.mag;em.opt.V)
magflg    [ AFTBVH] photometry flag (Note 5)   (meta.ref;pos.frame)
TYC11997   [1,9537] TYC1 (Note 6)   (meta.id)
TYC2 553   [1,12119] TYC2 (Note 6)   (meta.id)
TYC3 1   [1,4] TYC3 (Note 6)   (meta.id)
WDS13309+2414   WDS id for the system (Note 7)   (meta.id)
Note    [ ADNORSTU] a note (Note 8)   (meta.note)
HIP 65915   Hipparcos number from Tycho-2 (meta.id)
CCDM    Hipparcos component identifier (meta.id)
HD117555   HD identifier (meta.id)
RcmpA   Reference component (meta.code.multip)
PA256.7 deg Position angle (Note 9)   (pos.posAng)
Sep 75.48 arcsec Separation (Note 9)   (pos.angDistance)
e_PA 0.0 deg Standard error of position angle (stat.error)
Sep*e_PA 8 mas Sep * e_PA (product of the 2 quantities) (pos.posAng)
e_Sep 10 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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