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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2014)
The Washington Double Star Catalog (main part) (146114 rows)
  recno=92505
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ColumnValue  Explain   (UCD)
_RAJ200016 53 37.5200 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-74 40 25.800 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195016 47 12.0718 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-74 35 28.294 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon317.0124184 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-18.9110166 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
92505recno 92505  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS16536-7440  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscTDT 131  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11991 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 4  Number of Observations (up to 9999) (meta.number)
pa1156 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2164 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 4.3 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 5.00 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag111.98 mag Magnitude of First Component (phot.mag;em.opt)
mag212.61 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -31 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 46 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 24 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2-120 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
Notes    [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!] indicates a position derived from WDS name (meta.note)
RAJ200016 53 37.52 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-74 40 25.8 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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