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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=107443
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ColumnValue  Explain   (UCD)
_RAJ200018 20 50.0300 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+35 46 56.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 19 04.2354 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+35 45 30.706 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon063.3010545 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+21.2687992 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
107443recno 107443  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18208+3547  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscDAM 107  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11998 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 7  Number of Observations (up to 9999) (meta.number)
pa1301 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2305 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 7.8 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 7.70 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.100 mag Magnitude of First Component (phot.mag;em.opt)
mag213.00 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -9 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -22 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -11 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -1 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+35 3221  Durchmusterung Number (Note 3)   (meta.id)
Notes    [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200018 20 50.03 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+35 46 56.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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