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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (154040 rows)
  recno=78643
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ColumnValue  Explain   (UCD)
_RAJ200012 54 39.9800 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+22 06 28.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195012 52 12.3431 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+22 22 45.378 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon311.4181989 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+84.9264673 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
78643recno 78643  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS12547+2206  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscMET 9  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs12002 yr Date of first satisfactory observation (time.epoch)
Obs22016 yr Date of last satisfactory observation (time.epoch)
Nobs 9  Number of Observations (up to 9999) (meta.number)
pa1 56 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 50 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 1.5 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 1.70 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 5.700 mag Magnitude of First Component (phot.mag;em.opt)
mag2 7.77 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF8V+M2-3V  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 53 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -32 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2  mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2  mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+22 2522  Durchmusterung Number (Note 3)   (meta.id)
NotesN K   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200012 54 39.98 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+22 06 28.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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