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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2014)
The Washington Double Star Catalog (main part) (150551 rows)
  recno=89540
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ColumnValue  Explain   (UCD)
_RAJ200015 40 28.4500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+18 40 18.000 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195015 38 13.2851 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+18 49 54.142 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon029.8060372 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+50.3542170 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
89540recno 89540  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS15405+1840  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscA 2076  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11909 yr Date of first satisfactory observation (time.epoch)
Obs22018 yr Date of last satisfactory observation (time.epoch)
Nobs 93  Number of Observations (up to 9999) (meta.number)
pa1146 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2187 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 0.2 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 0.70 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 8.28 mag Magnitude of First Component (phot.mag;em.opt)
mag2 8.44 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeA2  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -19 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 19 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -19 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 19 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+19 3000  Durchmusterung Number (Note 3)   (meta.id)
NotesO   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200015 40 28.45 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+18 40 18.0 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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