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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=103994
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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 26.5906 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+51 29 38.454 "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)
103994recno 103994  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)
CompAC  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11878 yr Date of first satisfactory observation (time.epoch)
Obs22012 yr Date of last satisfactory observation (time.epoch)
Nobs 5  Number of Observations (up to 9999) (meta.number)
pa1227 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2234 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 47.7 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 41.20 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 -8 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -19 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2  mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2  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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