VizieR

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VizieR

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B/wds/wds The Washington Visual Double Star Catalog (Mason+ 2001-2020)
The Washington Double Star Catalog (main part) (154915 rows)
  recno=130147
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ColumnValue  Explain   (UCD)
_RAJ200020 20 30.3500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 33 49.700 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 18 20.3979 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 24 16.875 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon064.1536693 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -7.2863213 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
130147recno 130147  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS20205+2334  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscPOU4381  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11894 yr Date of first satisfactory observation (time.epoch)
Obs22015 yr Date of last satisfactory observation (time.epoch)
Nobs 9  Number of Observations (up to 9999) (meta.number)
pa1162 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2160 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 17.6 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 18.50 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag110.300 mag Magnitude of First Component (phot.mag;em.opt)
mag212.20 mag Magnitude of Second Component (phot.mag;em.opt)
SpTypeF8  Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -2 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 1 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 3 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -4 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM+23 3976  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 20 30.35 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+23 33 49.7 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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