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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=61974
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ColumnValue  Explain   (UCD)
_RAJ200010 01 40.3900 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+17 24 33.200 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195009 58 55.8972 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+17 39 04.379 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon217.7970443 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat+49.7406276 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
61974recno 61974  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS10017+1725  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscRUC 7  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11998 yr Date of first satisfactory observation (time.epoch)
Obs22018 yr Date of last satisfactory observation (time.epoch)
Nobs 4  Number of Observations (up to 9999) (meta.number)
pa1 91 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2127 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 0.1 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 0.00 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 9.45 mag Magnitude of First Component (phot.mag;em.opt)
mag2  mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeK0V+K6V  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 63 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -53 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+18 2307  Durchmusterung Number (Note 3)   (meta.id)
NotesNO   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200010 01 40.39 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+17 24 33.2 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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