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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (153002 rows)
  recno=125346
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ColumnValue  Explain   (UCD)
_RAJ200020 04 21.1900 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-54 00 02.000 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 00 28.0644 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-54 08 31.491 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon344.2004206 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat-32.1771082 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
125346recno 125346  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS20044-5400  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscB 462  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11927 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 6  Number of Observations (up to 9999) (meta.number)
pa1 28 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 23 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 2.0 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 1.80 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag1 9.920 mag Magnitude of First Component (phot.mag;em.opt)
mag211.58 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF8  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -6 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -17 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 -6 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -17 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM-54 9585  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)
RAJ200020 04 21.19 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000-54 00 02.0 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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