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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (154046 rows)
  recno=103995
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ColumnValue  Explain   (UCD)
_RAJ200017 56 36.3800 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+51 29 20.200 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195017 55 26.5961 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+51 29 38.654 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon079.0550163 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+29.2173178 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
103995recno 103995  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS17566+5129  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscBU 633  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAD  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11878 yr Date of first satisfactory observation (time.epoch)
Obs22017 yr Date of last satisfactory observation (time.epoch)
Nobs 8  Number of Observations (up to 9999) (meta.number)
pa1 14 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 11 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 56.5 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 59.50 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 2.230 mag Magnitude of First Component (phot.mag;em.opt)
mag212.90 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeK5III  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -9 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -23 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -2 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -9 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
NotesN   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200017 56 36.38 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+51 29 20.2 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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