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=130146
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ColumnValue  Explain   (UCD)
_RAJ200020 20 32.9500 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 41 58.500 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 18 23.1836 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 32 30.913 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon064.2728823 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -7.2188760 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
130146recno 130146  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS20205+2342  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscPOU4384  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
Comp   Components when more than 2 (Note 1)   (meta.code.multip)
Obs11898 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)
pa1357 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2 12 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 7.5 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 11.40 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag113.100 mag Magnitude of First Component (phot.mag;em.opt)
mag213.40 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -11 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1-107 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 31 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 99 mas/yr Secondary Proper Motion (Dec) (pos.pm;pos.eq.dec)
DM   Durchmusterung Number (Note 3)   (meta.id)
NotesU   [B-Z ] Notes about the binary (Note 4)   (meta.note)
n_RAJ2000    [!P] indicates a position derived from WDS name (meta.note)
RAJ200020 20 32.95 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+23 41 58.5 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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