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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (153033 rows)
  recno=103030
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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)
103030recno 103030  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)
CompAF  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11879 yr Date of first satisfactory observation (time.epoch)
Obs22018 yr Date of last satisfactory observation (time.epoch)
Nobs 12  Number of Observations (up to 9999) (meta.number)
pa1116 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2114 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1124.8 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2126.00 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 2.380 mag Magnitude of First Component (phot.mag;em.opt)
mag211.67 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 1 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -8 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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