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I/276/catalog Tycho Double Star Catalogue (TDSC) (Fabricius+ 2002)
*Main TDSC catalogue (98482 rows)
  recno=16829
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ColumnValue  Explain   (UCD)
_RAJ200005 17 17.689539 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+53 35 10.02230 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195005 13 15.183795 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+53 31 56.53142 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon156.365928218 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+08.974081210 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)
16829recno 16829  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

TDSC11319  (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)
RAJ2000079.3237025 deg (i) Right ascension (ICRS), at epoch EpRA (pos.eq.ra;meta.main)
DEJ2000+53.5861533 deg (i) Declination (ICRS) at epoch EpDE (pos.eq.dec;meta.main)
EpRA1991.64 a Epoch of right ascension (time.epoch)
EpDE1991.39 a Epoch of declination (time.epoch)
e_RAJ2000 29 mas Standard error of RA*cos(dec) (stat.error;pos.eq.ra)
e_DEJ2000 34 mas Standard error of Dec (stat.error;pos.eq.dec)
posflg    [ NTH] position flag (Note 3)   (meta.ref;pos.frame)
pmRA 1.0 mas/a Proper motion in RA*cos(dec) (pos.pm;pos.eq.ra)
pmDE -15.5 mas/a Proper motion in Dec (pos.pm;pos.eq.dec)
e_pmRA 1.5 mas/a Standard err of prop mot in RA*cos(dec) (stat.error;pos.pm;pos.eq.ra)
e_pmDE 1.6 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)
BTmag11.00 mag BT, Tycho blue magnitude (phot.mag;em.opt.B)
e_BTmag 0.07 mag Standard error of BT (stat.error;phot.mag;em.opt.B)
VTmag10.13 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)
TYC13735   [1,9537] TYC1 (Note 6)   (meta.id)
TYC2 681   [1,12119] TYC2 (Note 6)   (meta.id)
TYC3 1   [1,4] TYC3 (Note 6)   (meta.id)
WDS05173+5335   WDS id for the system (Note 7)   (meta.id)
Note    [ ADNORSTU] a note (Note 8)   (meta.note)
HIP 24645   Hipparcos number from Tycho-2 (meta.id)
CCDM    Hipparcos component identifier (meta.id)
HD 34019   HD identifier (meta.id)
RcmpA   Reference component (meta.code.multip)
PA 54.5 deg Position angle (Note 9)   (pos.posAng)
Sep 45.54 arcsec Separation (Note 9)   (pos.angDistance)
e_PA 0.0 deg Standard error of position angle (stat.error)
Sep*e_PA 39 mas Sep * e_PA (product of the 2 quantities) (pos.posAng)
e_Sep 37 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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