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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (153033 rows)
  recno=77259
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ColumnValue  Explain   (UCD)
_RAJ200012 49 09.5700 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+07 38 16.300 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 46 37.6427 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+07 54 40.373 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon301.2402684 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+70.5021258 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
77259recno 77259  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS12492+0738  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscHLD 117  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11882 yr Date of first satisfactory observation (time.epoch)
Obs22017 yr Date of last satisfactory observation (time.epoch)
Nobs 21  Number of Observations (up to 9999) (meta.number)
pa1 20 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 21 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 2.0 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 2.50 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.260 mag Magnitude of First Component (phot.mag;em.opt)
mag210.60 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF8  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 18 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -74 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 18 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -74 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+08 2644  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)
RAJ200012 49 09.57 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+07 38 16.3 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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