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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2014)
The Washington Double Star Catalog (main part) (148475 rows)
  recno=105985
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ColumnValue  Explain   (UCD)
_RAJ200018 42 51.5600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 30 33.200 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 40 46.3282 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 27 31.214 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon053.2537046 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+12.2648787 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
105985recno 105985  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18429+2331  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscPOU3496  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11905 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)
pa1 51 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 52 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 11.4 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 9.70 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.53 mag Magnitude of First Component (phot.mag;em.opt)
mag212.60 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -1 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 2 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 14 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 11 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   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 42 51.56 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+23 30 33.2 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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