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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (154252 rows)
  recno=98636
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ColumnValue  Explain   (UCD)
_RAJ200016 57 53.6000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+47 22 02.500 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 56 30.4899 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+47 26 19.946 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon073.3783979 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+38.4654960 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
98636recno 98636  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS16579+4722  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscSTFA 32  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompBC  Components when more than 2 (Note 1)   (meta.code.multip)
Obs11991 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 9  Number of Observations (up to 9999) (meta.number)
pa1261 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2261 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1117.1 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2117.20 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.850 mag Magnitude of First Component (phot.mag;em.opt)
mag2 8.05 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeK0V  Spectral Type (Primary/Secondary) (src.spType)
pmRA1-147 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 272 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2-143 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 245 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
NotesN W   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200016 57 53.60 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+47 22 02.5 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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