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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=105986
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ColumnValue  Explain   (UCD)
_RAJ200018 42 53.3100 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+05 44 27.900 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 40 26.1195 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+05 41 28.075 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon037.0798384 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat +4.5103606 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
105986recno 105986  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS18429+0545  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscBU 136  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11873 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 27  Number of Observations (up to 9999) (meta.number)
pa1 10 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 7 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 4.0 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 4.60 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 9.15 mag Magnitude of First Component (phot.mag;em.opt)
mag210.19 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeB9  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -4 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -28 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -7 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 2 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+05 3927  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 53.31 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+05 44 27.9 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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