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=130143
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ColumnValue  Explain   (UCD)
_RAJ200020 20 32.3600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+23 52 30.000 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195020 18 22.7673 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+23 42 57.294 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon064.4183703 deg Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon)
_Glat -7.1191816 deg Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat)
130143recno 130143  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

WDS20205+2353  (i) WDS name (based on J2000 position) (meta.id;meta.main)
DiscPOU4383  Discoverer Code (1 to 4 letters) and Number (Note 5)   (meta.id)
CompAB  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)
pa1134 deg Position Angle at date Obs1 (Note 2)   (pos.posAng)
pa2122 deg Position Angle at date Obs2 (Note 2)   (pos.posAng)
sep1 5.4 arcsec Separation at date Obs1 (pos.angDistance;src.orbital)
sep2 6.90 arcsec Separation at date Obs12 (pos.angDistance;src.orbital)
mag111.920 mag Magnitude of First Component (phot.mag;em.opt)
mag213.20 mag Magnitude of Second Component (phot.mag;em.opt)
SpType   Spectral Type (Primary/Secondary) (src.spType)
pmRA1 -4 mas/yr Primary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE1 -4 mas/yr Primary Proper Motion (Dec) (pos.pm;pos.eq.dec)
pmRA2 16 mas/yr Secondary Proper Motion (RA) (pos.pm;pos.eq.ra)
pmDE2 -10 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    [!P] indicates a position derived from WDS name (meta.note)
RAJ200020 20 32.36 "h:m:s" (i) Right Ascension J2000 (Ep=J2000, hours) (pos.eq.ra;meta.main)
DEJ2000+23 52 30.0 "d:m:s" (i) Declination J2000 (Ep=J2000, degrees) (pos.eq.dec;meta.main)
  
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