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I/276/catalog Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)
*Main TDSC catalogue (98482 rows)
  recno=51174
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ColumnValue  Explain   (UCD)
_RAJ200012 29 45.521208 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-61 12 40.26708 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 26 56.845910 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-60 56 05.39051 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon300.323867666 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+01.550734422 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)
51174recno 51174  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_TDSCB  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)
RAJ2000187.4396717 deg (i) Right ascension (ICRS), at epoch EpRA (pos.eq.ra;meta.main)
DEJ2000-61.2111853 deg (i) Declination (ICRS) at epoch EpDE (pos.eq.dec;meta.main)
EpRA1991.65 a Epoch of right ascension (time.epoch)
EpDE1991.67 a Epoch of declination (time.epoch)
e_RAJ2000 96 mas Standard error of RA*cos(dec) (stat.error;pos.eq.ra)
e_DEJ2000 96 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)
BTmag12.35 mag BT, Tycho blue magnitude (phot.mag;em.opt.B)
e_BTmag 0.17 mag Standard error of BT (stat.error;phot.mag;em.opt.B)
VTmag12.74 mag VT or Hp magnitude (phot.mag;em.opt.V)
e_VTmag 0.26 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 2   [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)
RcmpA   Reference component (meta.code.multip)
PA359.5 deg Position angle (Note 9)   (pos.posAng)
Sep 0.98 arcsec Separation (Note 9)   (pos.angDistance)
e_PA 6.1 deg Standard error of position angle (stat.error)
Sep*e_PA105 mas Sep * e_PA (product of the 2 quantities) (pos.posAng)
e_Sep106 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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